4WRKE

Rexroth
  • Size 10, 16, 25, 27, 32, 35
  • Component series 3X
  • Maximum operating pressure 350 bar
  • Maximum flow 3000 l/min

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general

Type 4WRKE
Size 10 16 25 27 32 35
Installation position any, preferably horizontal
Ambient temperature range °C -20 … +50
Storage temperature range °C -20 … +80
Weight kg 8.7 11.2 16.8 17 31.5 34
Sine test according to DIN EN 60068-2-6 10 cycles, 10…2000.. 10 Hz with logarithmic frequency changing speed of 1 octave/min, 5 to 57 Hz, amplitude 1.5 mm (p-p), 57 to 2000 Hz, amplitude 10g, 3 axes
Noise test according to DIN EN 60068-2-64 20…2000 Hz, amplitude 0.05g2/Hz (10gRMS) 3 axes, testing time 30 min per axis
Shock test according to DIN EN 60068-2-27 Half-sine 15g / 11 ms, 3 times in positive and 3 times in negative direction per axis, 3 axes
Damp heat according to DIN EN 60068-2-30 Variant 2: +25 °C … +55 °C, 90 % … 97 % relative humidity, 2 cycles á 24 hours

hydraulic

Size 10 16 25 27 32 35
Maximum operating pressure bar 350
Maximum operating pressure Port P bar 315 350 210 350
Anschluss A bar 315 350 210 350
Port B bar 315 350 210 350
Operating pressure range Pilot control valve, pilot oil supply bar 25 … 315
Maximum return flow pressure Port T, external pilot oil return bar 315 250 210 250
Port T, internal pilot oil return bar 10
Port Y bar 10
Maximum flow l/min 170 460 870 1000 1600 3000
Nominal flow 1) l/min 25
50
100		 125
150
200
220		 220
350		 500 400
600		 1000
Pilot flow input signal 0 → 100% Port X and Y l/min 4.1 8.5 11.7 13
Hydraulic fluid temperature range °C -20 … +80
preferably °C -40 … +50
Viscosity range mm²/s 20 … 380
preferably mm²/s 30 … 45
Maximum admissible degree of contamination of the hydraulic fluid, cleanliness class according to ISO 4406 (c) 2) Pilot control valve Class 18/16/13 according to ISO 4406 (c)
Main valve Class 20/18/15 according to ISO 4406 (c)
Hysteresis % ≤ 1
Response sensitivity % ≤ 0.5
1) ±10% with Δp = 10 bar, Δp = valve pressure differential
2) The cleanliness classes specified for the components must be adhered to in hydraulic systems. Effective filtration prevents faults and simultaneously increases the life cycle of the components. For the selection of the filters, see www.boschrexroth.com/filter.

electrical

Size 10 16 25 27 32 35
Voltage type Direct voltage
Type of signal analog
Maximum current consumption of the amplifier A 1.5
of the amplifier (impulse current) A 3
Protection class according to DIN EN 60529 IP65 (If a suitable and a correctly mounted mating connector are used.)
Power supply V 24
Supply voltage range V 18 … 35
Earthing (GND) V 0
Command value input “A1” V 10
Command value input range “F1” mA 4 … 20
Actual value output “A1” V 10
Actual value output range “F1” mA 4 … 20
Hydraulic fluid Classification Suitable sealing materials Standards
Mineral oils and related hydrocarbons HL, HLP NBR / FKM DIN 51524
Flame-resistant   – containing water HFC (Fuchs HYDROTHERM 46M, Petrofer Ultra Safe 620) NBR ISO 12922
Phosphoric acid esters HFD-R FKM
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