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Under full load the switching time of a large valve should stay the same. The 4WRZ32W8-520-7X/6EG24N9TK4/M therefore receives pilot oil from a separate circuit, returns it internally and controls 520 l/min nominal flow at 350 bar.
Proportional Directional Valve 4WRZ32W8-520-7X/6EG24N9TK4/M - Bosch Rexroth R900744289
BOSCH REXROTH
Original product
Net price (excl. VAT)
€6,110.67
Item
BRR-R900744289
Manufacturer no.
R900744289
Personal expert advice
Brand new
Specialist dealer since 2009
Original product
Worldwide shipping
Product data
Manufacturer no.R900744289
Country of originGermany
Customs tariff number84812010
ConditionNew
Artikel
BRR-R900744289
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When an axis reverses under load, pressure in the main line drops briefly and an internally supplied pilot stage turns sluggish. The 4WRZ32W8-520-7X/6EG24N9TK4/M avoids that through external pilot oil supply while providing 520 l/min nominal flow.
Benefits
- External pilot oil supply, the switching movement stays even when reversing under load.
- Internal pilot oil return, the tank channel of the subplate is enough for relief.
- 520 l/min nominal flow, throughput up to 1600 l/min in size 32.
- Spool symbol W8, 3 switching positions, 43.4 kg, subplate mounting to ISO 4401-10-09-0-05.
- Concealed auxiliary actuation, for setup mode and fault finding without electronics.
Technical data
| Connection diagram | ISO 4401-10-09-0-05 |
| Max. flow | 1600 l/min |
| Product family | 4WRZ(E) |
| Type of connection | Subplate mounting |
| Nominal flow | 520 l/min |
| Supply voltage | 24 VDC |
| Number of switching positions | 3 |
| Hydraulic fluid | HL |
| Number of ports | 4 |
| Electrical connection description | Connector, 7-pole (6 + PE) according to EN 175201-804 |
| Spool symbol | Symbol W8 |
| Operating pressure, max. | 350 bar |
| Size | 32 |
| Seals | NBR |
| Electrical connector | Connector, 3-pole (2 + PE) |
| Type of actuation | Electrical with external electronics |
| Weight | 43.4 kg |
Applications
The valve serves reversing axes of presses, tipping and slewing drives and test rigs with alternating load direction. A dedicated pilot circuit pays off where several axes switch at the same time. An external amplifier at 24 VDC provides the command signal.
Manufacturer
Bosch Rexroth, material number R900744289. Characteristic curves and limits are given in data sheet RE 29115.
| Hersteller-Nr | R900744289 |
|---|---|
| Manufacturer | Bosch Rexroth |
| Country of Manufacture | Germany |
| Weight | 43.400000 |
| Zolltarifnummer | 84812010 |
| GPSR Herstellerdaten | A1-ESD equipment GmbH. Keldersstr. 15, DE-42697 Solingen, www.esd.equipment |
| Artikel-Authentizität | Original product |
| Artikelzustand | New |
| Position sensing | No |
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