Linde HPR-2 Manuale utente

HPR-02.

Self-regulating pump

for open loop operation.

Design characteristics

>> high pressure axial piston pump in swash plate design for open loop systems

>> clockwise or counter clockwise rotation

>> self-priming at high nominal speed

>> higher rotating speed by tank pressurization or swash angle reduction

>> adaptive noise optimization SPU

>> decompression fluid is drained via pump housing for suction side stability

>> exact and rugged load sensing controls

>> SAE high pressure ports

>> SAE mounting flange with ANSI or SAE spline shaft

>> through shaft SAE A, B, B-B, C, D and E

>> optional tandem and multiple pumps

Product advantages

>> energy saving operation by "flow on demand" control

>> dynamic response

>> excellent suction up to rated speed

>> noise optimization over the entire range of operation

>> optimal interaction with Linde LSC-directional control valves and LinTronic

>> compact design

>> high power density

>> high pressure rating

>> high reliability

>> long working life

1LS-controller

optimum utilisation of power

2swash plate

hydrostatic bearing

3piston-slipper assembly

21° swash angle

4housing

one-piece design for high rigidity

5valve plate housing

highly integrated

6two control pistons

servo-controlled swash plate

7power take-off

for mounting of additional pumps

8cylinder barrel

compact due to 21° technology

9suction channel

optimized suction capacity

without tank pressurization

10 SPU

reduced pressure pulsation

over the entire operating range

Data Sheets Linde Hydraulics.

Content HPR-02.

General technical data 4

Operational parameters

>> Life time recommendations 6

>> Tank connection, filtration, mounting orientation 7

>> Pressure fluids 8

Linde LSC-System 9

Noise reduction. SPU silencer 10

Torque transmission 12

>> Mounting flange 13

>> Drive shaft 14

>> Pumps according to ISO 3019-2 and SAE J617a 15

>> PTO through drive 16

>> PTO flange and output shaft 17

Gear pumps 18

Controllers 20

>> LS. Load Sensing 21

>> LP. LS with hydraulic pressure cut-off 22

>> E1L/H1L. LS with electric/hydraulic override 23

>> E1L. LS with electric override 24

>> H1L. LS with hydraulic override 25

>> Electrical properties 26

>> Pump controllers with position feedback 27

>> TL2. LS with hyperbolic power limitation 29

>> LEP. LS with electro-proportional flow

limitation and pressure cut-off 30

>> ETP. Electro-proportional flow setting,

hyperbolic power limitation and pressure cut-off 31

Dimensions

>> Controllers 32

>> Single pumps for LP, E1L, H1L 38

>> Single pumps for TL2, LEP, ETP 40

>> Double pumps and plug-in pumps 42

>> Multiple pumps 44

Modular system features 46

Print media overview 47

Contact 48

Product range

Find the right products for your application.

The data on which this brochure is based correspond to the current state of development. We reserve the right to make

changes in case of technical progress. The dimensions and technical data of the individual installation drawings are prevailing.

The features listed in this data sheet are not available in all combinations and nominal sizes. Our sales engineers will be happy

to provide advice regarding the configuration of your hydraulic system and on product selection.

Product Application Linde product name

Pump Self-regulating pump open loop operation HPR-02

Variable pump closed loop operation HPV-02

Motor Variable motor closed and open loop operation HMV-02

Regulating motor closed and open loop operation HMR-02

Fixed motor closed and open loop operation HMF-02

open loop operation HMF-02 P

closed and open loop operation HMA-02

Valve technology LSC manifold plate open loop operation VT modular

Pilot valve block open loop operation VD7S

Electronics Electronic control closed and open loop operation LINC

Peripheral equipment closed and open loop operation

Software diagnosis and configuration LinDiag®

Standard Linde-name plate

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 Series 02 self-regulating pump, rated size 105

R Right hand rotation

2683 The last 4 figures of the Bill of Material

Serial-No. H2X

254 Type number of HPR 105-02

T Letter indicating year of production

12345 Serial Number

Part No. 12345678 Free text field for up to 15 characters

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 2x

105 281.9 2x

165.6

Speed Max. operating speed

Without tank pressurization* 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 79.1 102.8 130.0 144.9 175.1 205.6 211.4 289.8

Maximum power kW 104.0 132.8 172.7 218.5 243.4 294.1 306.7 355.2 431.8

Response times

Measured at fluid vis-

cosity 20 cSt and input

speed 1500 rpm

Vmax -> Vmin

Swashing at

constant max. sys-

tem 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 N2000

Radial Non request

Permissible hou-

sing 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

10-²0.79 0.79 1.44 2.15 3.41 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

General technical data.

Overview of technical data

Selection diagram

Input speed [rpm]

Volume flow [l/min]

General technical data.

1,25

1,2

1,15

1,1

1,05

0,95

0,9

0,85

0,5 0,55 0,65 0,75 0,85 0,95 10,6 0,7 0,8 0,9

Ausschwenkung V/V

max

Drehzahl n/n

Nenn

0,8 ar Asluruck augsee

0,9 ar

1,0 ar

1,1 ar

1,2 ar

1, ar

Relative displacement V/ Vmax

Relative speed n / nrated

0.8 bar absolute suction pressure

0.9 bar

1.1 bar

1.0 bar

1.2 bar

1.3 bar

Suction speeds

Operational parameters. Life time recommendations

Life time recommendations

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 lower continuous maximum speed

>> Operating pressure less than 300 bar Δp on average

>> 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 Δp 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

Operational parameters. Tank connection, filtration, mounting orientation

Tank connection

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.

Filtration

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 function

and 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 operation

of 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

Mounting orientation

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 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 tem-

perature is always higher than the circuit temperature. Please contact Linde if the stated conditions cannot be met or in special

circumstances.

Operational parameters. Pressure fluids

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.

Permitted pressure fluids

>> Mineral oil HLP to DIN 51524-2

>> Biodegradable fluids in accordance with ISO 15380 on request

>> Other pressure fluids on request

Recommended viscosity ranges

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.

Viscosity recommendations

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

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

Linde LSC-System.

The Linde Synchron Control System (LSC-System) for open loop hydraulic circuits enables demand-orientated pump volume control

based on load sensing technology (LS technology). A LSC-System compensates the effect of varying loads, varying numbers of

actuators and different load levels at different actuators. This happens automatically, thereby making machine operation more

convenient since, unlike in other systems, continuous corrective action is no longer required. The LSC-System enables high-effi-

ciency hydraulic systems to be realized that are strictly orientated to the machine functions. Our application specialists will be

happy to provide advice for individual machine configurations.

Functionality

>> Demand-oriented pump control

>> Excellent precision control characteristics without readjust-

ment

>> Exact reproducibility of machine movements through

exact control of actuators

>> Dynamic response characteristics

>> Load-independent, synchronous movements of

several actuators

>> "Social" oil distribution even in the event of overload

>> Automatic venting of directional control valve end caps

>> Optimum movement continuity even for combined

movements

Further optional functions such as

>> Priority control of individual actuators

>> Output control

>> High-pressure protection

>> Regeneration function

>> Combined function shuttle valve

>> Load holding function

Machine equipment

>> Customized system design for optimum implementation

of customer requirements

>> Optimum utilization of the installed power with

simultaneous improvement of energy consumption

>> High flexibility through manifold plates

>> Compact, integrated solutions

>> Modular design of valve sections

>> Add-on cylinder valves for direct and fast cylinder

supply, no additional hose burst protection required

>> Optimized piping

Benefits

>> Perfect matching of the individual operating functions

for customized machine characteristics

>> Efficient and dynamic machine control for short

operating cycles

>> Optimized energy balance for reduced fuel consumption

and enhanced handling performance

>> Simple and safe machine operation for non-fatigue

and efficient working

>> Unsurpassed reliability even under harsh operating

conditions

>> Reduced installation times

Flow Ripple

Pressure Ripple

Fluid Borne Noise

System Excitation

Structure Borne Noise

Noise Radiation

Noise reduction. SPU silencer

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 dif-

ference 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.

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.

Conventional commutation Linde SPU commutation

System pressure [bar]Speed [rpm]

Pressure pulsation [bar]

In principle noise emissions from machinery with hydraulic

systems can be reduced in the following ways:

>> Reduction of operating pressure and speed. This reduces the

pulsation energy introduced into the hydraulic system

>> Primary measures for optimizing the compression stroke in

rotary piston machines with the aim of reducing pulsation

>> Secondary measures such as vibration-optimized design and

installation of machine components and sound-proofing for

noise suppression

Noise Generation

System Pressure [bar]Speed [rpm]

Noise reduction. SPU silencer

Pressure pulsations with and without SPU

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