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Program Information Mobile Hydraulics, Mobile ... - Bosch Rexroth AG

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Load Sensing Control Block M4<br />

Applications:<br />

Drilling equipment, forestry machinery,<br />

HGV hydraulic systems,<br />

municipal vehicles, aerial working<br />

platforms<br />

Control block for mobile machines<br />

- Load Sensing system (LS control)<br />

• Closed Center for variable<br />

pumps<br />

• Open Center for fixed pumps<br />

- Sandwich design<br />

- Load-pressure-compensated flow<br />

- Low hysteresis<br />

- <strong>Program</strong>mable control electronics<br />

- Adjustable stroke limitation<br />

- Priority function (M4-15)<br />

- Primary and secondary safeguard<br />

- LS pressure limitation for each<br />

operating connection<br />

- Modular system<br />

- Combinable sizes:<br />

• M4-12 with M4-15<br />

• M4-15 with M4-22<br />

Size 12 15 22<br />

Flow Port P qV l/min 150 200 400<br />

Ports A, B qV l/min 130 190 400<br />

Max. operating pressure<br />

Pump side<br />

Actuator side<br />

pmax pmax bar<br />

bar<br />

350<br />

420<br />

350<br />

420<br />

350<br />

420<br />

Piston axes, max. 20 18 8<br />

Activation Mechanical � - �<br />

Hydraulic � � �<br />

Electrohydraulic � � �<br />

Superimposed hand-lever operation � � -<br />

Detailed information:<br />

M4-12 RE 64276<br />

M4-15 RE 64283<br />

M4-22 RE 64279<br />

49<br />

4

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