Proportional Directional Valve 4WRZ32W8-520-7X/6EG24N9ETK4/M - Bosch Rexroth R901039680

Before first commissioning the amplifier is often not ready yet, while the axis already has to move. The 4WRZ32W8-520-7X/6EG24N9ETK4/M can then be switched through its concealed auxiliary actuation and afterwards works at 520 l/min nominal flow.

Benefits

• Concealed auxiliary actuation, setup and emergency operation are possible without leaving a lever permanently exposed.
• 520 l/min nominal flow, peaks up to 1600 l/min in size 32.
• Internal pilot oil supply and internal return, no additional pilot lines on the subplate.
• Spool symbol W8, 43.06 kg, NBR seals, laid out for HL fluid at 350 bar maximum operating pressure.
• 7-pole (6 + PE) plug to EN 175201-804, the amplifier sits outside the valve.

Applications

The valve is used on main axes of presses and forming lines where commissioning runs in stages. Concealed actuation also helps fault finding, because hydraulics can be checked separately from electronics. Installation follows the ISO 4401-10-09-0-05 pattern.

Manufacturer

Bosch Rexroth, material number R901039680. Data sheet RE 29115 holds the characteristic curves and permitted operating limits.