
Variable Displacement Pump
Self-regulating pump for open loop operation
HPR-02 | 55 | 75 | 105 | 135 | 165 | 210 | 280 | 105D | 125D | 165D | |
---|---|---|---|---|---|---|---|---|---|---|---|
Max. displacement | cc/rev | 55 | 75.9 | 105 | 135.7 | 165.6 | 210.1 | 281.9 | 210 | 252 | 331.2 |
Max. operating speed (without tank pressurization) | rpm | 2700 | 2500 | 2500 | 2350 | 2200 | 2100 | 2000 | 2450 | 2400 | 2150 |
Max. oil flow* | l/min | 148.5 | 189.8 | 262.5 | 318.9 | 364.3 | 441.2 | 563.8 | 514.5 | 604.8 | 712.1 |
Nominal pressure | bar | 420 | 420 | 420 | 420 | 420 | 420 | 420 | 420 | 380 | 420 |
Max. pressure** | bar | 500 | 500 | 500 | 500 | 500 | 500 | 500 | 500 | 420 | 500 |
Torque (Δp=420 bar) | Nm | 368 | 507 | 702 | 907 | 1107 | 1404 | 1884 | 1245 | 1404 | 1964 |
Corner power | kW | 104 | 132.8 | 183.8 | 223.2 | 255 | 308.8 | 394.7 | 360.2 | 383 | 431.8 |
Weight approx. (without oil) | kg | 39 | 39 | 50 | 65 | 89 | 116 | 165 | 96 | 113 | 177 |
* theoretical data of a single unit without efficiency effects ** highest transient pressure, that can temporarily occur |
Rated Size | 55 | 75 | 105 | 135 | 165 | 210 | 105D | 280 | 165D | |||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Maximum Displacement | cc/rev | 55 | 75.9 | 105 | 135.7 | 165.6 | 210.1 | 2x105 | 281.9 | 2x165.6 | ||
Speed | Max. operating speed Without tank pressurisation* | rpm | 2700 | 2500 | 2350 | 2300 | 2100 | 2000 | 2350 | 1800 | 2100 | |
Volume flow** | Max. oil flow | l/min | 148.5 | 189.8 | 246.8 | 312.1 | 347.8 | 420.2 | 493.5 | 507.4 | 695.5 | |
Pressure | Continuous pressure | bar | 250 | |||||||||
Nominal pressure | bar | 420 | ||||||||||
Peak pressure | bar | 500 | ||||||||||
Perm. Housing pressure | bar | 2.5 (absolute) | ||||||||||
Torque** | Continuous input torque At continuous pressure | Nm | 219 | 302 | 418 | 540 | 659 | 836 | 836 | 1122 | 1318 | |
Maximum input torque max. oper. pressure and Vmax | Nm | 368 | 507 | 702 | 907 | 1107 | 1404 | 1245 | 1884 | 1964 | ||
Power** | Continuous power | kW | 61.9 | 79.1 | 102.8 | 130 | 144.9 | 175.1 | 205.6 | 211.4 | 289.8 | |
Maximum power | ms | 104 | 132.8 | 172.7 | 218.5 | 243.4 | 294.1 | 306.7 | 355.2 | 431.8 | ||
Response times measured at fluid vis-costly 20 cSt and input speed 1500 rpm | Vmax -> Vmin Swashing at constant max. system pressure HP | HP 100 bar | ms | 120 | 120 | 120 | 140 | 150 | 200 | 200 | 300 | 150 |
HP 200 bar | ms | 70 | 70 | 70 | 70 | 130 | 170 | 170 | 270 | 130 | ||
Vmin -> Vmax Swashing from stand-by pressure and zero flow to system pressure HP | HP 100 bar | ms | 180 | 180 | 180 | 180 | 180 | 180 | 160 | 430 | 180 | |
HP 200 bar | ms | 160 | 160 | 160 | 160 | 160 | 160 | 160 | 350 | 160 | ||
Permissible shaft loads | Axial | N | 2000 | |||||||||
Radial | N | on request | ||||||||||
Permissible housing temp | Perm. housing temp. With min. perm. viscosity > 10 cSt | °C | 90 | |||||||||
Weights | HPR-02 without oil (approx.) | kg | 39 | 39 | 50 | 65 | 89 | 116 | 96 | 165 | 177 | |
Max. moment of inertia | kgm²x 10-² | 0.79 | 0.79 | 1.44 | 2.15 | 3.14 | 4.68 | 2.88 | 8.34 | 6.88 |
*) higher rotating speed by tank pressurization or swash angle reduction. See <<Suction speed>>
**) theoretical data of a single unit without efficiency effects
The maximum input and maximum PTO torque allows to form multiple units. One of the first two pumps in such an assembly can thereby operate at maximum power, while the other can operate at continuous power. The PTO at the second pump then offers 30% of a single pump's continuous power rating. Example for HPR 135-02: Maximum input torque = 907 Nm + 540 Nm + 540*0.3 Nm = 1609 Nm
Each Linde Hydraulics unit features a name plate showing the type and the serial number. For a single order via 'open variant' a customer-specific number or free text with up to 15 characters can be stamped on the name plate.
Type | HPR 105-02 R 2683 | Series 02 self-regulating pump, rated size 105 Right hand rotation The last 4 figures of the Bill of Material |
---|---|---|
Serial-No. | H2X -254 T 2683 | Type number of HPR 105-02 Letter indicating year of production Serial Number |
Part No. | 12345678 | Free Text field for up to 15 characters |
Linde high pressure units are designed for excellent reliability and long service life. The actual service life of a hydraulic unit is determined by numerous factors. It can be extended significantly through proper maintenance of the hydraulic system and by using high-quality hydraulic fluid.
Beneficial conditions for long service life | |
---|---|
>> Speed | less than 300 bar Δp on average |
>> Operating pressure | lower continuous maximum speed |
>> Max. pressure | only at reduced displacement |
>> Viscosity | 15 ... 30 cSt |
>> Power | continuous power or lower |
>> Purity of fluid | 18/16/13 in accordance with ISO 4406 or better |
Adverse factors affecting service life | |
---|---|
>> Speed | between continuous maximum speed and intermittent maximum speed |
>> Operating pressure | more than 300 bar ?p on average |
>> Viscosity | less than 10 cSt |
>> Power | continuous operation close to maximum power |
>> Purity of fluid | lower than 18/16/13 in accordance with ISO 4406 |
The leakage and decompression oil generated during pump operation is drained from the rotating group into the pump housing. Excessive housing pressure must be avoided through suitably dimensioned piping between the housing and the tank.
High purity oil can extend the service time of the hydraulic system significantly. In order to guarantee long-term proper function and high efficiency of the hydraulic pumps the purity of the pressure fluid must comply with the following criteria.
>> For reliable proper functionand long service life | 18/16/13 in accordance with ISO 4406 or better |
>> Minimum requirements | 20/18/15 in accordance with ISO 4406 |
>> Commissioning | The minimum purity requirement for the hydraulic oil is based on the most sensitive system component. For commissioning we recommend a filtration in order to achieve the required purity. |
>> Filling and operationof hydraulic systems | The required purity of the hydraulic oil must be ensured during filling or topping up. When drums, canisters or large-capacity tanks are used the oil generally has to be filtered. We recommend the implementation of suitable measures (e.g. filters) to ensure that the required minimum purity of the oil is also achieved during operation. |
>> International standard | code number according to ISO 4406 purity class according to SAE AS 4059 18/16/13 corresponds to 8A/7B/7C 20/18/15 9A/8B/8C |
The preferred mounting orientation is generally horizontal. Pump configurations for vertical mounting with the shaft pointing upwards have an additional drain port "R" at the mounting flange. These units are available with certain combinations of features and have to be requested separately.
For further information concerning the installation of the unit please refer to the operating instructions manual.
In order to ensure the functional performance and high efficiency of the hydraulic pumps the viscosity and purity of the operating fluid should meet the different operational requirements. Linde recommends using only hydraulic fluids which are confirmed by the manufacturer as suitable for use in high pressure hydraulic installations or approved by the original equipment manufacturer.
Linde offers an oil testing service in accordance with VDMA 24 570 and the test apparatus required for in-house testing. Prices available on request.
Pressure fluid temperature range | [°C] | -20 to +90 |
---|---|---|
Working viscosity range | [mm²/s] = [cSt] | 10 to 80 |
Optimum working viscosity | [mm²/s] = [cSt] | 15 to 30 |
Max. viscosity (short time start up) | [mm²/s] = [cSt] | 1000 |
In order to be able to select the right hydraulic fluid it is necessary to know the working temperature in the hydraulic circuit. The hydraulic fluid should be selected such that its optimum viscosity is within the working temperature range (see tables).
The temperature should not exceed 90 °C in any part of the system. Due to pressure and speed influences the leakage fluid temperature is always higher than the circuit temperature. Please contact Linde if the stated conditions cannot be met or in special circumstances.
Working temperature [°C] | Viscosity [mm²/s] = [cSt] at 40 °C |
---|---|
approx. 30 to 40 | 22 |
approx. 40 to 60 | 32 |
approx. 60 to 80 | 46 or 68 |
In hydraulic systems pressure pulsations can lead to noise emission. These pressure pulsations are a result of the inherent non-uniformity of the volume flow in rotary piston pumps. In open loop hydraulic circuits pressure pulsations primarily originate from within the hydraulic pump during the compression stroke, i.e. when a piston coming from the low-pressure side (suction side) enters the high-pressure side, where it is suddenly subjected to high pressure. The higher the pump speed and the pressure difference between the low-pressure and high-pressure side, the more pulsation energy is added to the hydraulic system via the hydraulic fluid. Pressure pulsations can cause components of the hydraulic system or the machine to oscillate, thereby generating noise that is perceivable for the human ear.
In principle noise emissions from machinery with hydraulic systems can be reduced in the following ways:
All Linde hydraulic pumps are optimized with respect to pulsation characteristics and therefore noise generation. In addition to common primary measures such as exclusive use of pulsation-optimized port plates, Linde Hydraulics offers the SPU silencer for HPR-02 open loop pumps. Without affecting the functionality and efficiency of the pump, this system reduces pressure pulsations by up to 70 %, irrespective of pressure, speed or temperature. The SPU system is adaptive over the entire operating range. No setting up or maintenance is required.
The following diagrams illustrate the immediate effect of pulsation level reduction via SPU on the sound pressure level and therefore the perceived noise emission.
Shown in 2 dB(A) steps over a typical diesel engine operating speed range.
Depending on the selected components, different torques may be transferred. Please ensure that the load transfer components such as mounting flange, PTO-through shaft and additional pumps are designed adequately. Our sales engineers will be pleased to provide design advice.
This shows the input side (A) and PTO- / output side (B) of a HPR-02 pump.
The information on the following pages refers to
Bolt hole dimensions | Rated size HPR-02 | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
55 | 75 | 105 | 135 | 165 | 210 | 105 D | 280 | 165 D | ||
M1 inside diameter | mm | 17.5 | 17.5 | 17.5 | 21.5 | 21.5 | 22 | 17.5 | 22 | 17.5 |
M2 outside diameter | mm | 34 | 34 | 40 | 40 | 40 | - | 40 | - | - |
M3 bolt hole length | mm | 20 | 20 | 20 | 20 | 25 | 26 | 20 | 30 | 25 |
Mounting flange in accordance with SAE J744 | For rated size | Mounting | Dimensions | |||||||
---|---|---|---|---|---|---|---|---|---|---|
Washer | Screw | "Torque(8.8)[Nm]" | "Torque(10.9)*[Nm]" | "K[mm]" | "D[mm]" | "H[mm]" | "V[mm]" | "G[mm]" | ||
SAE C, 2 hole | 55, 75, 105 | 17x33x10 | M16 | 195 | 275 | 181 | 127 | - | - | - |
SAE C, 2 hole with 4 additional threads M12 | 105 | 17x33x10 | M16 | 195 | 275 | 181 | 127 | - | - | 114 |
SAE C, 2 hole with 4 additional holes (d=10.5 mm) | 105D | 17x33x10 | M16 | 195 | 275 | 181 | 127 | 178 | 178 | - |
SAE D, 2 hole | 135 | 21x37x8 | M20 | 385 | 540 | 228.6 | 152.4 | - | - | - |
SAE D, 2 hole | 135 | 21x37x8 | M20 | 385 | 540 | 228.6 | 152.4 | - | - | 138 |
SAE D 2 hole with additional bolt holes (d=17.5 mm) | 165 & 165D | 21x37x8 | M20 | 385 | 540 | 228.6 | 152.4 | 230 | 190 | - |
SAE E, 4 hole | 210 & 280 | - | M20 | 385 | 540 | 224.5 | 165.1 | - | - | - |
*) Option for standard design, necessary for tandem units
Shaft spline (in accordance with ANSI B92.1) | SAE-J744 Code (for centring and shaft) | "Outsidediameter W1[mm]" | "Useablespline lengthW2 [mm]" | Shaft type | Available for rated size | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
55 | 75 | 105 | 105D | 135 | 165 | 165D | 210 | 280 | |||||
12/24, 14 t | C | 31.22 | 30 | 2 | x | x | - | - | - | - | - | - | |
16/32, 21 t | 34.51 | 39.5 | 1 | - | x* | - | - | - | - | - | - | - | |
12/24, 17 t | C-C | 37.68 | 30 | 2 | - | - | x | x | x | - | - | - | - |
16/32, 23 t | 37.68 | 38.5 | 1 | - | - | x* | x | - | - | - | - | ||
8/16, 13 t | D,E | 43.71 | 50 | 2 | - | - | - | - | x | x | x | - | - |
16/32, 27 t | 44.05 | 62 | 1 | - | - | - | - | x | x* | x | x | - | |
8/16, 15 t | F | 50.06 | 58 | 1 | - | - | - | - | - | - | - | x* | x |
*) Recommended for tandem configurations
Rated size | 55 | 75 | 105 | 105D | 135 | 165 | 165D | 210 | 280 | |
---|---|---|---|---|---|---|---|---|---|---|
Excess length W3 | mm | 54 | 55 | 61.3 | 75 | 75 | 75 | 75 | 75 | 75 |
The previously given information and dimensions refer to pumps according to ISO 3019-1 (SAE J 744). In addition to that, certain configurations are available according to ISO 3019-2. These units offer an additional drain port “R” at the mounting flange for upright installation and a keyed drive shaft.
Rated size | 105 | 280 | |
---|---|---|---|
Mounting flange | 125A2SW | 224B4SW | |
Mounting | 2-hole | 4-hole | |
Screw hole diameter | M1 | 17.5 | 22 |
Screw contact surface | M2 | 40 | 40 |
Clamping length | M3 | 30 | 30 |
Centring | D | 125 | 224 |
Mounting hole distance | K | 180 | 198 |
Shaft diameter | W1 | 40 | 60 |
Key acc. to DIN 6885 | W2 | 12x8x80 | 18x11x100 |
Excess length | W3 | 92 | 115 |
Height | W4 | 23 | 53 |
Port R | Size | M14x1.5 13 deep | |
Position | bottom, as port "T" | side, as port "U" | |
R(L) | 15.5 | 15 | |
R(H) | approx. 80 | 50 | |
R(B) | 40 | 152 |
Linde HPR pumps can be delivered matching a flange according to SAE J617a. The pumps are therefore equipped with an adaptor. Depending on the rated size, the base unit is a standard HPR-02 or a plug-in type HPR-02. The plug-in-flange is shown in section (Dimensions. Double pumps and plug-in pumps).
According to SAE J617a | Rated size | Base unit |
---|---|---|
SAE 3 | 105, 105D, 135 | plug-in |
SAE 3 | 165, 165D | SAE D 2-hole with 4 additional bolt holes |
SAE 4 | 105, 105D, 135 | plug-in |
SAE 5 | 55, 75, 105 | SAE C 2-hole |
Linde pumps can be combined into tandem and multiple pumps. The combination options are determined by the permitted transfer torque. The following data refers to the PTO (pump output side, without further attachments).
Rated size | 55 | 75 | 105 | 135 | 165 | 210 | 280 | |
---|---|---|---|---|---|---|---|---|
Z drive hub profile (in accordance with ANSI B92.1) | 16/32,18 t | 16/32,18 t | 16/32,19 t | 16/32,21 t | 16/32,23 t | 16/32,24 t | 16/32,27 t | |
D1 | mm | 47 | 47 | 48 | 54 | 55 | 63 | 72 |
D2 spigot pilot diameter | mm | 82.55 | ||||||
D3 | mm | 89.5 | ||||||
D4 | mm | M 10 | ||||||
D5 max. bearing clearance | mm | 30 | 35 | 38 | 43 | 42 | 46 | 51 |
L1 | mm | 1.5 | 1.9 | 1.9 | 1.9 | |||
L2 adapter length | mm | 7 | 8 | 8 | 8 | |||
L3 | mm | 9 | ||||||
L4 minimum distance | mm | 35 | 39 | 33 | 35 | 57.8 | 46 | 47.5 |
L5 usable spline length | mm | 18 | 18 | 24 | 15.8 | 24.4 | 29.5 | 39 |
L6 distance to bearing | mm | 48 | 48 | 52.7 | 54.2 | 83.3 | 46 | 86 |
L7 min. bearing clearance | mm | 3 | 5 | 0.7 | ||||
L8 hole distance 2-hole | mm | 106.4 |
Beside the combination of the HPR with other HPRs or HPVs to create multiple and tandem units (see section Dimensions. Multiple pumps), single HPRs can be prepared ex works for the combination with other pumps. Depending on the rated size, we offer different centrings for the rear pump. A matching coupling muff for the drive shaft can also be selected. Currently, the following combinations are available. For more information about the output torque, see annotations to table at chapter (General technical data).
Centring symbol acc. to SAE J 744 | Coupling muff, acc. to ANSI B92.1 | Rated Size | ||||||
---|---|---|---|---|---|---|---|---|
55 | 75 | 105 | 135 | 165 | 210 | 280 | ||
Directly mounted Linde gear pumps | X | X | X | X | X | X | X | |
A | without | X | X | X | X | X | X | X |
A | 16/32 9 t (A) | X | X | X | X | X | X | - |
A | 16/32 11 t | - | - | - | - | - | X | - |
A | 16/32 13 t | - | - | X | X | - | X | X |
B | without | X | X | X | X | X | X | X |
B | 16/32 13 t (B) | X | X | X | X | X | X | X |
B | 16/32 15 t (B-B)t | X | X | X | X | - | - | X |
C | without | X | X | X | X | X | X | X |
C | 12/24 14 t (C) | X | X | X | X | X | X | X |
C | 16/32 21 t | - | X | X | X | - | X | - |
C | 16/32 23 t | - | - | X | X | X | X | - |
D | without | - | - | - | X | X | X | X |
D | 8/16 13 t (D) | - | - | - | X | - | - | - |
D | 12/24 17 t | - | - | - | X | - | - | - |
D | 16/32 27 t | - | - | - | X | X | X | - |
E | without | - | - | - | - | - | X | X |
E | 16/32 27 t | - | - | - | - | - | X | - |
Rated size | 55 | 75 | 105 | 135 | 165 | 210 | 280 | |
---|---|---|---|---|---|---|---|---|
Continuous transfer torque | Nm | 219 | 302 | 418 | 540 | 659 | 836 | 1122 |
Max. transfer torque | Nm | 433 | 598 | 763 | 1069 | 1069 | 1655 | 2221 |
The gear pumps are available in two designs. Internal gear pumps (IGP) and external gear pumps (EGP). Both types can be used for the control circuits as well as the cooling circuit. The suction is always external for both types, when used in combination with a HPR-02. The internal connection of the IGP is closed.
Internal gear pumps offer a cold start valve and a PTO interface for mounting further pumps. The possible combinations of IGPs and EGPs are determined by PTO option and the permitted shaft torque.
Displacement | cc/rev | 16 | 19 | 22.5 | 31 | 38 | 44 |
---|---|---|---|---|---|---|---|
Type of gear pump | IGP | EGP | IGP | EGP | EGP | EGP | |
Mounting flange and drive shaft profile | SAE A 16/32, 18 t | SAE A 16/32 9 t | SAE A 16/32, 18 t | SAE A 16/32, 9 t | SAE A 16/32, 13 t | SAE A 16/32, 13 t | |
Type of suction in conjunction with HPR-02 | external | ||||||
Max. perm. operating pressure Observe max permissible rated pressures for filter and cooler | bar | 40 | 210 | 40 | 165 | 275 | 220 |
Supply pressures min. | bar | 0.8 (absolut) | |||||
Supply pressures max. | bar | 3.0 (absolut) | |||||
Cold start relief valve | integrated | - | integrated | - | - | - |
Flange profile 2-hole | SAE A | SAE B | SAE B-B | SAE C | |
---|---|---|---|---|---|
Z internal spline profile in accordance with ANSI B92.1 | 16/32, 9 t | 16/32, 13 t | 16/32, 15 t | 12/24, 14 t | |
D1 spigot pilot diameter | mm | 82.55 | 101.6 | 127 | |
D2 thread size | M 10 | M12 | M 16 | ||
L1 hole distance | mm | 106.4 | 146 | 181 | |
L2 adapter length | mm | 7 | 11 | 13 | |
L3 flange length | mm | - | 55 | 72 | |
Continuous transfer torque | Nm | 75 | 175 | ||
Maximum transfer torque | Nm | 107 | 250 |
Linde pumps with load sensing control enable the movement speed required of the selected actuator, e.g. of a boom, to be specified via the valve opening. The measured pump and load pressures are continuously balanced by the load sensing controller of the hydraulic pump.
A pressure gradient is set at the controller, which is defined by the actuator requirements. The volume flow results from the orifice A of the control valve and the actual pressure gradient. Due to the LS-controller, the Δp corresponds to the setting value. If the required volume flow differs, the pump displacement is changed accordingly. This happens automatically and reduces the effort required by the operator. Since varying loads and varying numbers of actuators are compensated automatically. The Δp LS basic setting is possible from 16 to 27 bar with 20 bar as standard (the LS differential pressure influences the response times of the pump system).
The modular controller unit enables a wide range of functional system requirements to be met. In all controller unit versions, the regulating functions are integrated in a housing in order to ensure direct signal transfer without delays and with maximum compactness. All controllers equipped with load sensing function are fully compatible with the Linde Synchron Control System (see section, Linde LSC-System).
Type of regulation | Additional function | Swashplate positionfeedback | Name |
---|---|---|---|
Load Sensing | With pressure cut-off | without | LPt |
with ?pLS override | without | E1L/H1L | |
with hyperbolic power limiting | with | TL2 | |
electro-proportional flow limitation and pressure cut-off | with | LEP | |
Control | electro proportional flow setting, power limitation and pressure cut-off | with | ETP |
In addition to the load sensing function the LP-controller offers maximum pressure limitation. Once the system pressure reaches the set pressure of the pressure cut-off valve, the LS-controller is overridden and the pump swashes back, whilst maintaining the system’s regulating pressure. The hydraulic pump remains in this state until the system pressure falls below the set pressure. The hydraulic pump then returns to normal LS operation.
The maximum pressure cut-off valve prevents prolonged operation of pressure relief valves installed in the hydraulic system for protection. This has the following benefits for the hydraulic system:
Possible maximum pressure control setting ranges
In addition to the load sensing function, HPR-02 pumps with H1L or E1L controllers offer the possibility of overriding the Δp LS-signal hydraulically or electrically. This enables a so called mode control for selecting different operating points or enables a power limit regulation (underspeed control). The integration of all functions in the pump controller enables direct signal transfer without delay. The controller-specific data are independent of the nominal pump size.
A mode control (mode selection) modulates electrically the Δp LS-signal at an orifice (e.g. directional control valve). The current Δp LS value is reduced proportionally or in steps and the pump output adjusted via the pressure reducing valve (see the diagrams on following pages.) In this way the volume flow of the pump can be reduced using the same orifice. In applications with proportional valves this leads to enhanced control resolution, enabling particularly precise and sensitive actuator movement.
Any reduction in the prime mover speed is detected in conjunction with an electronic control unit, and the pump's volume flow is limited through modulation of the Δp LS value to ensure that the maximum power capacity is not exceeded. The maximum prime mover power is thus available at all times, irrespective of ambient influences and the number of actuators.
In principle, the Δp LS value acting at the LS-pilot can be modulated down to zero, whereas modified response times of the pump system should be expected in the operating range near zero.
In addition to the load sensing function, the HPR-02 E1L offers an electric override for mode selection and power limit regulation (underspeed control). The integration of all functions in the pump controller enables direct signal transfer without delays. The controller-specific data are independent of the nominal pump size.
In the event of an electric override of the LS-signal, a pressure reducing valve is activated via the proportional solenoid. The control pressure generated in this way acts proportionally against the LS-spring, and the effect of the Δp LS signal is modulated accordingly. This causes the pump to swash back, thereby reducing its output. The function between control current (l) at the control solenoid and the associated Δp LS value is shown in the diagram. At the port "A", the control pressure can be picked up and forwarded to an H1L controller at another HPR pump, which follows the first pump with the E1L controller (master-slave-operation).
1. 16 bar Δp setting
2. 20 bar Δp setting
3. 25 bar Δp setting
4. 28 bar Δp setting
In addition to the load sensing function, HPR-02 pumps with H1L-controller offer the possibility of overriding the Δp LS-signal hydraulically. This enables either a so called mode control for selecting different operation points or establish a power limit regulation (underspeed control). The integration of all functions in the pump controller enables direct signal transfer without delay. The controller-specific data are independent of the nominal pump size. The H1L-controller is particularly useful for tandem configurations of two HPR-02 pumps, in which the first is equipped with an E1L-controller. The second pump with H1L-controller uses the resulting hydraulic signal of the first controller and follows the first pump’s actions (master-slave-configuration).
In the event of hydraulically overriding the LS-signal, a control pressure is applied to the port “A” of the controller. This pressure acts proportionally against the LS-spring, and the LS signal is modulated accordingly. This causes the pump to swash back, thereby reducing its output. The function between control pressure at the port A and the associated Δp LS value is shown in the following diagram.
1. 16 bar Δp setting
2. 20 bar Δp setting
3. 25 bar Δp setting
4. 28 bar Δp setting
Supply voltage = limiting voltage | V | 12 | 24 | |
---|---|---|---|---|
Control types | Digital control via Pulse Width Modulation PWM | 100 Hz rectangle, pulse duty ratio variable over control range | ||
Analogue | Direct current with dither overlay (dither frequency nom. 35 Hz, duty cycle 1:1). Further details on request | |||
Connector type | DIN EN 175301-803, Deutsch, AMP Junior Timer (2-pin) | |||
Protection class | IP54 (DIN), IP67 (Deutsch), IP6K6K (AMP) | |||
Voltage type | Direct Current (DC) | |||
Power consumption | W | 15.6 | ||
Rated current = limiting current | mA | 1200 | 600 | |
Relative duty cycle | % | 100 |
TL2-, LEP- and ETP-controllers offer a feedback of the swashplate position. Therefore they are – unlike LP-, E1L- and H1L-controllers – not mounted on the valve plate housing, but on the pump housing. Besides their individual characteristics, these controllers have some similar features.
LEP- and ETP-controllers offer a pressure cut-off (PCO), just like the LP-controller. This prevents the pump pressure exceeding a previously set maximum. The PCO is set to a customer-specific value between 125 bar and 420 bar ex works. Using a control signal at the XD port, the actual response pressure of the PCO valve of LEP- and ETP-controllers can be increased steplessly. The response pressure of the valve is increased by 4.3 bar by every bar increase at the XD port. The maximum pressure of 420 bar must not be exceeded.
The swash angle and thus the flow of the pump is set by means of an electric signal with the LEP and ETP controller. The actual current depends on the voltage-level of the application and the nominal size of the pump. Without an electric signal, the pump swashes to minimal displacement.
Rated size | Control current | ||
---|---|---|---|
12v | 24 V | ||
RB Regulation begin | 105,135 | 464 mA | 232 mA |
210 | 490 mA | 245 mA | |
280 | 524 mA | 262 mA | |
RE Regulation end | 105-280 | 1200 mA | 600 mA |
Controllers of the TL2 and ETP type offer a power limitation with a hyperbolical characteristic. The controller is set ex works to a customer specific power limit value. The volume flow is restricted, when this limit is exceeded. By means of control ports at the controller, the point at which the power limiter sets in can be raised, as well as lowered during operation.
Dependent on the rated size of the unit, there is a minimum value for the power limitation which must not be underrun, neither by the ex work setting, nor by shifting. The maximum mechanically set value at which the power limitation sets in, is 250 bar, independent of the pump's rated size and speed. The pump must never be operated with more than its maximum power.
Rated Size | ||||||
---|---|---|---|---|---|---|
75 | 105 | 135 | 210 | 280 | ||
Ex works setting [kW] | 6 - 82 | 9-106 | 12-136 | 24 - 184 | 32 - 221 | |
Shifting of the regulation begin | Z1 | 7.1 | 7.1 | 7.1 | 7.4 | 7.8 |
[bar/bar] | Z2 | -3.2 | -3.2 | -3.2 | -3.3 | -3.4 |
Regulation begin minimum [bar] | 60 | 60 | 60 | 80 | 80 | |
Regulation begin [bar] (mechanically set) | 250 | |||||
Max. pressure at Z1/Z2 [bar] | 25 |
The control principle with power limitation is used to optimize power utilization of the prime mover in applications where less than the full power capacity is available for the hydraulic system. In addition to the load sensing function the HPR-02 TL2 offers hyperbolic power limitation. The volume flow is limited when the set value is reached.
The TL2 controller offers a so called hydraulic power mode function. This means, that the regulation begin of the power limitation / torque control can be shifted from its mechanical basic setting by means of a remote control port Z1/Z2 at the controller. If the regulation begin is intended to be below the basic setting, which means that the pump performance is reduced, then the port Z2 is used while S4 is closed. If the mode function is not used at all, or only with the Z1 port, S4 is equipped with an orifice. Z2 is then sealed pressure tight. For details, see Pump controllers with position feedback. T-axis
The HPR with LEP-controller offers an on-demand load sensing flow control. The actual volume flow, delivered by the pump can be restricted by an electrical signal in certain points of operation. A pressure cut-off function protects the hydraulic system from overload.
Without any signal at the solenoid or the LS-port, the pump is swashed back to stand-by position. Both signals at the same time are required for the pump to leave stand-by position. The actual swash angle of the pump is determined by the signal with the lower target value.
The responding behaviour of the pressure cut-off can be remote-controlled by a hydraulic signal at the XD port as an option. S1 is then equipped with an orifice and S2 is sealed. If only the mechanical preset of the PCO is used, S1 is sealed and S2 is not equipped. Details, see (Pump controllers with position feedback. P-axis)
The HPR with ETP-controller delivers a volume flow which is exactly proportional to the electric control signal. Superposed, the controller offers a hyperbolic power limitation, which optimally exploits the power of the prime mover and also protects it from overload. In addition to this, a pressure cut-off protects the hydraulic system. The controller is supplied via a feed port "E" at the port plate housing.
The ETP-controller offers a so called hydraulic power mode function. This means, that the regulation begin of the power limitation can be shifted from its mechanical basic setting by means of a remote control port Z1/Z2 at the controller. If the regulation begin is intended to be below the basic setting, which means that the pump performance is reduced, then the port Z2 is used, S4 is closed. If the mode function is not used at all, or only with the Z1 port, S4 is equipped with an orifice. Z2 is then sealed pressure tight. For details, see (Pump controllers with position feedback. T-axis)
The responding behaviour of the pressure cut-off can be remote-controlled by an hydraulic signal at the XD port as an option. S1 is then equipped with an orifice and S2 is sealed. If only the mechanical preset of the PCO is used, S1 is sealed and S2 is not equipped. Details, see (Pump controllers with position feedback. P-axis)
Dimensions:
Dimensions:
Connections:
Dimensions:
Connections:
Dimensions:
Connections:
Dimensions:
Connections:
Dimensions:
Connections:
The dimensioning is shown by one exemplary pump configuration. The external dimensions are determined by the individual configuration, including the choice of a controller, direction of rotation, optional SPU and the settings of the pump. Further information can be found in the specific sections of this datasheet, in particular the sections Torque transmission. Mounting flange and Torque transmission. Drive shaft
Rated size | 105 | 105 | 135 | 210 | 280 | 280 |
---|---|---|---|---|---|---|
In accordance with ISO 3019 | -1 | -2 | -1 | -1 | -1 | -2 |
D | 127 | 125 | 125.4 | 165.1 | 165 | 224 |
L1 | 262 | 272 | 284.5 | 348 | 403 | 403 |
L2 | 301 | 311 | 323.5 | 387 | 442 | 442 |
L3 | 108.9 | 118.5 | 82.8 | 138.5 | 168 | 168 |
H1 | 104.5 | 104.5 | 111.5 | 134.5 | 152 | 152 |
H2 | 134 | 134 | 144 | 144.3 | 200.7 | 238 |
H3 | 104.5 | 104.5 | 104 | 135 | 135 | 144.5 |
B1 | 194.5 | 194.5 | 214.8 | 266.3 | 314.5 | 314.5 |
B2 | 208 | 208 | 256.5 | 269 | 272 | 272 |
B3 | 118 | 116 | 106.7 | 102.4 | 119.5 | 120.2 |
B4 | 64 | 64 | 64 | 64 | 82.5 | 82.5 |
P | 1“ | 1“ | 1 ¼“ | 1 ½“ | 1 ½“ | 1 ½“ |
---|---|---|---|---|---|---|
P(L) | 218 | 228 | 243.5 | 295 | 344.5 | 344.5 |
P(H) | 26 | 26 | 30 | 27 | 46 | 46 |
P(B) | 100 | 100 | 107 | 144.5 | 154.1 | 155.5 |
T | 2“ | 2“ | 2“ | 3“ | 3 ½“ | 3 ½“ |
T(L) | 227 | 237 | 249.5 | 298 | 344.5 | 344.5 |
T(H) | 104 | 104 | 120 | 149 | 167 | 167 |
T(B) | 25 | 25 | 39.5 | 27 | 44 | 57 |
L/U | M22x1.5 | M22x1.5 | M27x2 | M27x2 | M33x2 | M33x2 |
L(L) | 142 | 152 | 164 | 191 | 215.5 | 215.5 |
L(H) | 53 | 53 | 61 | 97.5 | 80.5 | 80.5 |
L(B) | 92.5 | 92.5 | 101 | 128 | 129.5 | 144.9 |
U(L) | 72 | 82 | 74.5 | 83 | 109 | 109 |
U(H) | 54 | 54 | 54 | 60 | 68 | 68 |
U(B) | 85 | 85 | 92 | 118 | 159.5 | 131.3 |
E* | M14x1.5 | M14x1.5 | M14x1.5 | M14x1.5 | M14x1.5 | M14x1.5 |
E(L) | 240.8 | 250.8 | 249.5 | 303 | 375 | 346 |
E(H) | 135.6 | 135.6 | 142.6 | 165.6 | 183.1 | 183.1 |
E(B) | 15 | 15 | 16 | 20 | 20 | 20 |
Double pumps consist of two HPR rotating groups, arranged back-to-back to a common port plate housing, sharing one common suction port. They are thus more compact than two standard pumps in a tandem configuration. Compared to a pump of equal rated size with a single rotating group, double pumps offer higher speed and more narrow radial dimensions. They also provide a PTO option. The position of the ports, controllers and SPU differs from the previously shown pumps.
Further details on request.
Rated size | 105D | 105D | 105D | 165D | 165D |
---|---|---|---|---|---|
Circuit | Single circuit pump | Single or dual circuit pump | |||
Flange | SAE C with 4 additional bolt holes | plug-in version | SAE 3 / SAE 4 | SAE D with 4 additional bolt holes | SAE 3 |
D1 [mm] | 127 | 216 | SAE J617a | 152.4 | SAE J617a |
D2 [mm] | - | - | - | ||
D3 [mm] | - | - | - | ||
B1 [mm] | 124 | 124 | 124 | 147 | 147 |
B2 [mm] | 120 | 120 | 120 | 136 | 136 |
B4 [mm] | - | 222 | 222 | 162.3 | 162.3 |
H1 [mm] | 107 | 141 | 141 | 116 | 116 |
H2 [mm] | 107 | 141 | 141 | 116 | 116 |
H3 [mm] (105:LP, 165 E1L) | 138 | 144 | 144 | 170 | 170 |
H4 [mm] | - | 137 | 137 | 255 | 255 |
H5 [mm] port P | 75 | 75 | 75 | 80 | 80 |
H6 [mm] port T | 38 | 38 | 38 | 0 | 0 |
H7 [mm] | 195 | 196 | 196 | 260 | 260 |
L1 [mm] | 474 | 358 | 450 | 587.6 | 587.6 |
L2 [mm] | 478 | 376 | 468 | 601 | 625 |
L3 [mm] | 61.3 | 171 | 79 | 74.6 | 50.1 |
L4 [mm] | 232 | 116 | 208 | 286.1 | 310.6 |
P (SAE) | 2 x 1” | 2 x 1” | 2 x 1” | 2 x 1 ¼“ | 2 x 1 ¼“ |
T (SAE) | 1 x 3” | 1 x 3” | 1 x 3” | 1 x 4“ | 1 x 4“ |
L | M22x1.5 | M22x1.5 | M22x1.5 | M27x2 | M27x2 |
U | M22x1.5 | M22x1.5 | M22x1.5 | M27x2 | M27x2 |
Multiple pumps are created by connecting individual pump units in series, with the pumps arranged by capacity. Positioning the gear pump(s) at the end of the tandem ensures optimum space utilisation, output allocation and load distribution. The following table is based on the attached gear pump acting as a pilot pressure pump for the control circuit.
Rated size | Rear pump | HPR 55 | HPR 75 | HPR 105 | HPR 135 | HPR 165 | HPR 210 | HPR 280 |
---|---|---|---|---|---|---|---|---|
Front pump | Charge pump | 16 cc/rev | 22.5 cc/rev | 22.5 cc/rev | 22.5 cc/rev | 38 cc/rev | 38 cc/rev | 38 cc/rev |
HPR 55 | L1 | 488 | - | - | - | - | - | - |
L2 | 548 | - | - | - | - | - | - | |
L3 | 602 | - | - | - | - | - | - | |
HPR 75 | L1 | 500 | 511 | - | - | - | - | - |
L2 | 565 | 576 | - | - | - | - | - | |
L3 | 620 | 631 | - | - | - | - | - | |
HPR 105 | L1 | 520 | 531 | 562 | - | - | - | - |
L2 | 585 | 596 | 627 | - | - | - | - | |
L3 | 640 | 651 | 682 | - | - | - | - | |
HPR 135 | L1 | 536 | 547 | 578 | 619 | - | - | - |
L2 | 596 | 612 | 643 | 684 | - | - | - | |
L3 | 671 | 667 | 698 | 759 | - | - | - | |
HPR 165 | L1 | 579 | 591 | 621 | 679 | 728 | - | - |
L2 | 754 | 766 | 796 | 854 | 903 | - | - | |
L3 | 829 | 841 | 871 | 929 | 978 | - | - | |
HPR 210 | L1 | 600 | 612 | 642 | 701 | 749 | 751 | - |
L2 | 775 | 787 | 817 | 876 | 924 | 926 | - | |
L3 | 850 | 862 | 892 | 951 | 999 | 1001 | - | |
HPR 280 | L1 | 669 | 680 | 711 | 727 | 775 | 790 | 845 |
L2 | 844 | 855 | 886 | 902 | 950 | 965 | 1020 | |
L3 | 919 | 930 | 961 | 977 | 1025 | 1040 | 1095 |
Multiple pumps are created by combining individual pump units in series, with the pumps arranged by capacity. Positioning the gear pump(s) at the end of the unit ensures optimum space utilization, output allocation and load distribution. The following table is based on the gear pump acting as boost pump for the HPV-02 variable pump.
Rated sizeRated size | Rear pump | HPV 55 | HPV 75 | HPV 105 | HPV 135 | HPV 165 | HPV 210 | HPV 280 |
---|---|---|---|---|---|---|---|---|
Front pump | Charge pump | 16 cc/rev | 22.5 cc/rev | 22.5 cc/rev | 22.5 cc/rev | 38 cc/rev | 38 cc/rev | 38 cc/rev |
HPR 55 | L1 | 493 | - | - | - | - | - | - |
L2 | 553 | - | - | - | - | - | - | |
L3 | 607 | - | - | - | - | - | - | |
HPR 75 | L1 | 504 | 521 | - | - | - | - | - |
L2 | 569 | 586 | - | - | - | - | - | |
L3 | 624 | 641 | - | - | - | - | - | |
HPR 105 | L1 | 525 | 542 | 567 | - | - | - | - |
L2 | 590 | 607 | 632 | - | - | - | - | |
L3 | 645 | 662 | 687 | - | - | - | - | |
HPR 135 | L1 | 541 | 558 | 583 | 623 | - | - | - |
L2 | 601 | 623 | 648 | 688 | - | - | - | |
L3 | 676 | 678 | 703 | 763 | - | - | - | |
HPR 165 | L1 | 584 | 601 | 626 | 683 | 715 | - | - |
L2 | 759 | 776 | 801 | 858 | 890 | - | - | |
L3 | 834 | 851 | 876 | 933 | 965 | - | - | |
HPR 210 | L1 | 605 | 622 | 647 | 704 | 736 | 749 | - |
L2 | 780 | 797 | 822 | 879 | 911 | 924 | - | |
L3 | 855 | 872 | 897 | 954 | 986 | 999 | - | |
HPR 280 | L1 | 674 | 691 | 716 | 730 | 762 | 788 | 834 |
L2 | 849 | 866 | 891 | 905 | 937 | 963 | 1009 | |
L3 | 924 | 941 | 966 | 980 | 1012 | 1038 | 1048 |
The HPR-02 is based on a modular system with the following characteristics. This enables our distribution partners to
configure the product according to your requirements. The latest characteristics and available options can be taken from the model code, which is available on our homepage.