Bokin Electro-Hydraulic Technology (Foshan) Co., Ltd. is one of the leading manufacturers and suppliers of 4WRJE Series Pilot‑Operated Proportional Directional Valves
Position Feedback | Integrated OBE | Full Size Range (NG10 – NG27) in China. If you're going to wholesale bulk durable 4WRJE Series Pilot‑Operated Proportional Directional Valves
Position Feedback | Integrated OBE | Full Size Range (NG10 – NG27) made in China, welcome to get pricelist from our factory. All customized products are with high quality and competitive price.
Key Specifications At a Glance
| Parameter | 4WRJE10 (NG10) | 4WRJE16 (NG16) | 4WRJE25 (NG25) | 4WRJE27 (NG27) |
|---|---|---|---|---|
| Nominal Size | NG10 (Component Series 1X) | NG16 (Component Series 1X) | NG25 (Component Series 1X) | NG27 (Component Series 1X) |
| Mounting Standard | ISO 4401‑05‑05‑0‑05 | ISO 4401‑07‑07‑0‑05 | ISO 4401‑08‑08‑0‑05 | ISO 4401‑08‑08‑0‑05 |
| Max Operating Pressure (A/B/P ports) | 250 bar | 250 bar | 250 bar | 250 bar |
| Max Flow | 180 L/min | 460 L/min | 870 L/min | 1000 L/min |
| Control Interfaces | ±10V (A1) / 4‑20mA (F1) | ±10V (A1) / 4‑20mA (F1) | ±10V (A1) / 4‑20mA (F1) | ±10V (A1) / 4‑20mA (F1) |
| Dynamic Response Time | ＜30 ms | ＜40 ms | ＜60 ms | ＜60 ms |
| Hysteresis | ≤ 1% | ≤ 1% | ≤ 1% | ≤ 1% |
| Pilot Oil Supply Modes | 4 modes (MXY / MPY / MPT / MXT) | 4 modes (MXY / MPY / MPT / MXT) | 4 modes (MXY / MPY / MPT / MXT) | 4 modes (MXY / MPY / MPT / MXT) |
| Supply Voltage | 24 VDC (18–36 VDC) | 24 VDC (18–36 VDC) | 24 VDC (18–36 VDC) | 24 VDC (18–36 VDC) |
| Protection Class | IP65 | IP65 | IP65 | IP65 |
| Weight | 7.4 kg | 9.2 kg | 13.3 kg | 13.1 kg |
| CE Compliance | MD 2006/42/EC, EN ISO 12100:2010 | MD 2006/42/EC, EN ISO 12100:2010 | MD 2006/42/EC, EN ISO 12100:2010 | MD 2006/42/EC, EN ISO 12100:2010 |
Available Configurations
Select the flow rating and spool type for your system:
|
Model Number |
Rated Flow |
Spool Type |
Quick Action |
| 4WRJE 10 E100L-1X/MXY/24A1 |
100 L/min |
External pilot & external return (MXY) | |
| 4WRJE 10 E100L-1X/MPY/24A1 | 100 L/min | Internal pilot supply (MPY) | |
| 4WRJE 10 E100L-1X/MPT/24A1 | 100 L/min | Internal pilot & return (MPT) | |
| 4WRJE 10 E100L-1X/MXT/24A1 | 100 L/min | External pilot & internal return (MXT) | |
| 4WRJE 16 E220L-1X/MXY/24A1 | 220 L/min | External pilot & external return (MXY) | |
| 4WRJE 16 E220L-1X/MPY/24A1 | 220 L/min | Internal pilot supply (MPY) | |
| 4WRJE 16 E220L-1X/MPT/24A1 | 220 L/min | Internal pilot & return (MPT) | |
| 4WRJE 16 E220L-1X/MXT/24A1 | 220 L/min | External pilot & internal return (MXT) | |
| 4WRJE 25 E350L-1X/MXY/24A1 | 350 L/min | External pilot & external return (MXY) | |
| 4WRJE 25 E350L-1X/MPY/24A1 | 350 L/min | Internal pilot supply (MPY) | |
| 4WRJE 25 E350L-1X/MPT/24A1 | 350 L/min | Internal pilot & return (MPT) | |
| 4WRJE 25 E350L-1X/MXT/24A1 | 350 L/min | External pilot & internal return (MXT) | |
| 4WRJE 27 E500L-1X/MXY/24A1 | 500 L/min | External pilot & external return (MXY) | |
| 4WRJE 27 E500L-1X/MPY/24A1 | 500 L/min | Internal pilot supply (MPY) | |
| 4WRJE 27 E500L-1X/MPT/24A1 | 500 L/min | Internal pilot & return (MPT) | |
| 4WRJE 27 E500L-1X/MXT/24A1 | 500 L/min | External pilot & internal return (MXT) |
Need a custom spool profile or special configuration? Send us your requirements → Get Custom Solution
Product Key Advantages
1. Full Size Range for General Industrial Flow Demands
Covers 4 frame sizes from NG10 to NG27 with flow capacity from 180 L/min up to 1000 L/min, matching small precision systems through to large‑flow general industrial hydraulic circuits.
2. Stable Pilot‑Operated Position Control
Two‑stage pilot amplification with main‑stage electrical position feedback delivers precise flow regulation independent of load‑force variations. Spring‑centered main spool automatically returns to neutral position upon de‑energization for safe system reset.
3. Standardized Interfaces for Seamless Integration
All sizes follow ISO 4401 mounting standards with universal ±10V / 4‑20mA control interfaces. Fully interchangeable with equivalent Rexroth 4WRJE configurations for direct drop‑in installation, minimizing retrofit downtime.
4. Robust Industrial‑Grade Reliability & Safety
IP65 ingress protection, wide temperature tolerance and heavy‑duty construction withstand standard industrial environments. Integrated OBE includes over‑voltage / under‑voltage protection and cable‑break monitoring (F1 version) for comprehensive operational safety.
Compatibility Reference
|
Corresponding Rexroth Model |
BOKIN Equivalent Model |
Core Match Points |
| 4WRJE 10 E100L-1X/MXY/24A1 | 4WRJE 10 E100L-1X/MXY/24A1 | Same ISO 4401 mounting dimensions, electrical interfaces, hydraulic & dynamic performance |
| 4WRJE 10 E100L-1X/MPY/24A1 | 4WRJE 10 E100L-1X/MPY/24A1 | |
| 4WRJE 10 E100L-1X/MPT/24A1 | 4WRJE 10 E100L-1X/MPT/24A1 | |
| 4WRJE 10 E100L-1X/MXT/24A1 | 4WRJE 10 E100L-1X/MXT/24A1 | |
| 4WRJE 16 E220L-1X/MXY/24A1 | 4WRJE 16 E220L-1X/MXY/24A1 | |
| 4WRJE 16 E220L-1X/MPY/24A1 | 4WRJE 16 E220L-1X/MPY/24A1 | |
| 4WRJE 16 E220L-1X/MPT/24A1 | 4WRJE 16 E220L-1X/MPT/24A1 | |
| 4WRJE 16 E220L-1X/MXT/24A1 | 4WRJE 16 E220L-1X/MXT/24A1 | |
| 4WRJE 25 E350L-1X/MXY/24A1 | 4WRJE 25 E350L-1X/MXY/24A1 | |
| 4WRJE 25 E350L-1X/MPY/24A1 | 4WRJE 25 E350L-1X/MPY/24A1 | |
| 4WRJE 25 E350L-1X/MPT/24A1 | 4WRJE 25 E350L-1X/MPT/24A1 | |
| 4WRJE 25 E350L-1X/MXT/24A1 | 4WRJE 25 E350L-1X/MXT/24A1 | |
| 4WRJE 27 E500L-1X/MXY/24A1 | 4WRJE 27 E500L-1X/MXY/24A1 | |
| 4WRJE 27 E500L-1X/MPY/24A1 | 4WRJE 27 E500L-1X/MPY/24A1 | |
| 4WRJE 27 E500L-1X/MPT/24A1 | 4WRJE 27 E500L-1X/MPT/24A1 | |
| 4WRJE 27 E500L-1X/MXT/24A1 | 4WRJE 27 E500L-1X/MXT/24A1 | |
|
More models are available; please contact us for additional model options. |
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Note: For system configuration reference only. BOKIN is an independent brand. Please verify specifications before installation.
Typical Applications
- Plastic injection molding machines & die casting equipment
- Metal forming presses & general forging machinery
- Industrial hydraulic power units & test rigs
- Material handling machinery & conveyor systems
- General industrial automated production lines
Looking for higher‑pressure heavy‑duty proportional valves?
Installation & Commissioning Guidelines
Installation Notes
- Thoroughly clean all oil ports and connecting surfaces before installation to prevent contaminants from entering the valve body.
- Confirm control signal type and power‑supply voltage match the valve nameplate specifications before wiring.
- Tighten mounting bolts evenly to the torque specified for each frame size to avoid valve‑body deformation and internal leakage.
- Ensure the tank line does not run empty. Install a preload valve (approx. 2 bar preload pressure) if required by installation conditions.
- Gradually ramp‑up system pressure during commissioning. Inspect for leakage and abnormal noise before full‑load operation.
Safety Precautions
- Retain manual hydraulic override for backup safety during system retrofits.
- Fit pressure‑relief valves in the hydraulic circuit for overpressure protection.
- Implement emergency‑stop logic to de‑energize the proportional valve under fault conditions.
- Ensure hoses and connections are rated for the system's maximum working pressure.
- Zero‑point adjustment shall only be performed by trained personnel.
FAQ
Q: What is the main difference between 4WRJE and 4WRKE series?
A: 4WRJE is a cost‑effective pilot‑operated valve with 250 bar max pressure for general industrial systems. 4WRKE is a heavy‑duty 350 bar valve for more demanding load scenarios. Both share pilot‑operated position‑feedback architecture.
Q: Which control interface should I choose, A1 or F1?
A: Choose A1 (±10V) for higher‑precision short‑wiring scenarios. Choose F1 (4‑20mA) for long‑distance transmission or sites with heavy electromagnetic interference; F1 also includes built‑in cable‑break protection.
Q: What pilot oil supply modes are available?
A: Four standard modes: external pilot & external return (MXY), internal pilot & external return (MPY), internal pilot & internal return (MPT), external pilot & internal return (MXT). Select based on your system circuit design.
Q: Can 4WRJE valves directly replace Rexroth 4WRJE series?
A: Yes. All sizes follow ISO 4401 mounting standards with identical port geometry, electrical interfaces and hydraulic performance. They support drop‑in installation on compatible manifolds. Please send your full part number for final compatibility confirmation.
Ready to Get a Quote?
Send us your required model, quantity and application details, and our team will reply within 24 hours with a formal quotation.
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