Core Purpose & Equipment Adaptation
This guide covers genuine Rexroth Solenoid Valves (models listed below), critical control components for hydraulic systems in industrial machinery, construction equipment, and automation lines. It caters to maintenance engineers, procurement specialists, and plant operators, addressing pain points such as solenoid burnout, valve sticking, and hydraulic system inefficiency. All valves comply with DIN EN ISO 4401 and Rexroth’s original specifications, ensuring precise flow control, reliable electromagnetic response, and compatibility with high-pressure hydraulic circuits (up to 31.5MPa), which is essential for minimizing unplanned downtime.
1. 4WE10 Series Solenoid Valves (24V DC & 230V AC)
Widely used in medium-flow hydraulic systems, this series features a compact design and high switching reliability. Solenoid burnout and spool sticking are common failures; genuine Rexroth valves ensure stable performance in harsh industrial environments (temperature range: -20℃ to 80℃).
No. | Valve Model | Rexroth Part Number | Material | Main Wear Causes | Damage Prevention Notes |
1 | 4WE10 G3X/CG24N9K4 | R900594277 | Die-cast aluminum housing, stainless steel spool, copper coil | 1. Coil burnout from voltage fluctuations; 2. Spool sticking due to hydraulic oil contamination | 1. Stabilize input voltage (±5% of 24V DC); 2. Filter oil to ISO 12103 Class 8 cleanliness |
2 | 4WE10 L3X/CG24N9K4 | R900599646 | Die-cast aluminum housing, stainless steel spool, copper coil | 1. Coil insulation damage from high temperature; 2. Seal wear leading to internal leakage | 1. Ensure adequate ventilation around the valve; 2. Replace NBR seals every 12 months |
3 | 4WE10 H3X/CG24N9K4 | R900597986 | Die-cast aluminum housing, stainless steel spool, copper coil | 1. Spool wear from abrasive particles in oil; 2. Solenoid connector loosening | 1. Install a 10μm inline filter; 2. Tighten connectors to 2.5 N·m torque |
4 | 4WE10C50/EG24N9K4/M | R901278772 | Die-cast aluminum housing, hardened stainless steel spool, copper coil | 1. Coil overheating from continuous operation; 2. Spool jamming due to water in oil | 1. Avoid 24/7 continuous switching; 2. Maintain oil moisture content <200ppm |
5 | 4WE10Y50/EG24N9K4/M | R901278769 | Die-cast aluminum housing, hardened stainless steel spool, copper coil | 1. Seal degradation from incompatible hydraulic oil; 2. Coil damage from mechanical impact | 1. Use oil compliant with DIN 51524; 2. Install a protective cover for the coil |
6 | 4WE10D50/EG24N9K4/M | R901278760 | Die-cast aluminum housing, hardened stainless steel spool, copper coil | 1. Spool wear from high-pressure cycling; 2. Connector corrosion in humid environments | 1. Operate within rated pressure (31.5MPa); 2. Apply anti-corrosion spray to connectors |
7 | 4WE10E50/EG24N9K4/M | R901278761 | Die-cast aluminum housing, hardened stainless steel spool, copper coil | 1. Coil burnout from reverse polarity; 2. Spool sticking due to oil oxidation | 1. Verify polarity before wiring; 2. Replace hydraulic oil every 6 months |
8 | 4WE10J50/EG24N9K4/M | R901278744 | Die-cast aluminum housing, hardened stainless steel spool, copper coil | 1. Internal leakage from worn spool lands; 2. Coil insulation breakdown | 1. Inspect leakage annually (max 0.1L/min); 2. Test coil insulation resistance (≥10MΩ) |
9 | 4WE10 D3X/CW230N9K4 | R900912496 | Die-cast aluminum housing, stainless steel spool, copper coil | 1. Coil damage from 230V AC voltage spikes; 2. Spool wear from dust contamination | 1. Install a surge protector; 2. Keep valve housing sealed |
10 | 4WE10 J3X/CW230N9K4 | R900911868 | Die-cast aluminum housing, stainless steel spool, copper coil | 1. Coil overheating from poor ventilation; 2. Connector loosening from vibration | 1. Maintain 5cm clearance around the coil; 2. Use lock washers for connectors |
11 | 4WE 10 E3X/CW230N9K4 | R900911869 | Die-cast aluminum housing, stainless steel spool, copper coil | 1. Spool sticking due to cold oil (low temperature); 2. Coil burnout from overload | 1. Preheat oil to ≥10℃ before operation; 2. Ensure current does not exceed coil rating |
12 | 4WE10D50/OFEG24N9K4/M | R901278763 | Die-cast aluminum housing, hardened stainless steel spool, copper coil | 1. Seal wear from high-frequency switching; 2. Oil contamination from external debris | 1. Limit switching frequency to 10 cycles/min; 2. Clean valve ports before installation |
2. 4WE6 Series Solenoid Valves (24V DC & 230V AC)
Compact low-flow valves ideal for precision control systems. Common failures include coil burnout and internal leakage; genuine Rexroth valves ensure tight sealing and consistent electromagnetic performance.
No. | Valve Model | Rexroth Part Number | Material | Main Wear Causes | Damage Prevention Notes |
1 | 4WE6 C70/HG24N9K4 | R901089245 | Brass housing, stainless steel spool, copper coil | 1. Coil damage from humidity; 2. Spool sticking due to oil sludge | 1. Use a waterproof connector; 2. Add oil detergent to prevent sludge buildup |
2 | 4WE6 D70/HG24N9K4 | R901087088 | Brass housing, stainless steel spool, copper coil | 1. Internal leakage from worn seals; 2. Coil burnout from voltage instability | 1. Replace Viton seals annually; 2. Use a voltage regulator (24V DC) |
3 | 4WE6 Y70/HG24N9K4 | R901089243 | Brass housing, stainless steel spool, copper coil | 1. Spool wear from abrasive particles; 2. Connector corrosion | 1. Install a 5μm filter; 2. Use gold-plated connectors for corrosion resistance |
4 | 4WE6 D70/HG24N9K4/B10 | R901087088 | Brass housing, stainless steel spool, copper coil (B10 seal kit) | 1. Seal damage from high pressure; 2. Coil overheating from continuous use | 1. Operate below 25MPa; 2. Add a cooling fan for prolonged operation |
5 | 4WE6 E70/HG24N9K4 | R901087087 | Brass housing, stainless steel spool, copper coil | 1. Spool jamming due to water in oil; 2. Coil insulation damage | 1. Use a water separator in the hydraulic system; 2. Test insulation monthly |
6 | 4WE6 J70/HG24N9K4 | R901089241 | Brass housing, stainless steel spool, copper coil | 1. Connector loosening from vibration; 2. Spool wear from high-cycle operation | 1. Use vibration-damping mounts; 2. Replace spool every 24 months |
7 | 4WE6 J70/HG24N9K4/B10 | R901108990 | Brass housing, stainless steel spool, copper coil (B10 seal kit) | 1. Seal degradation from incompatible oil; 2. Coil damage from impact | 1. Use Rexroth-recommended hydraulic oil; 2. Install a shock absorber |
8 | 4WE6C 6X/EG24N9K4 | R900561272 | Brass housing, stainless steel spool, copper coil | 1. Coil burnout from reverse polarity; 2. Internal leakage from spool wear | 1. Check wiring polarity before startup; 2. Inspect leakage every 6 months |
9 | 4WE6D 6X/EG24N9K4 | R900561274 | Brass housing, stainless steel spool, copper coil | 1. Spool sticking due to oil oxidation; 2. Coil overheating from poor ventilation | 1. Replace oil every 4 months; 2. Ensure adequate airflow around the valve |
10 | 4WE6Y 6X/EG24N9K4 | R900561276 | Brass housing, stainless steel spool, copper coil | 1. Seal wear from high-frequency switching; 2. Coil damage from humidity | 1. Limit switching to 5 cycles/min; 2. Use a moisture-proof cover |
11 | 4WE6E 6X/EG24N9K4 | R900561278 | Brass housing, stainless steel spool, copper coil | 1. Spool wear from abrasive oil contaminants; 2. Connector loosening | 1. Use a high-efficiency oil filter; 2. Retighten connectors quarterly |
12 | 4WE6J 6X/EG24N9K4 | R900561288 | Brass housing, stainless steel spool, copper coil | 1. Coil burnout from voltage spikes; 2. Internal leakage from seal damage | 1. Install a surge arrester; 2. Replace seals every 18 months |
13 | 4WE6D 6X/OFEG24N9K4 | R900567512 | Brass housing, stainless steel spool, copper coil | 1. Spool jamming due to sludge; 2. Coil insulation breakdown | 1. Add a sludge inhibitor to oil; 2. Test insulation resistance annually |
14 | 4WE6L 6X/EG24N9K4 | R900901751 | Brass housing, stainless steel spool, copper coil | 1. Coil damage from mechanical impact; 2. Spool wear from high pressure | 1. Install a protective guard; 2. Operate within rated pressure (21MPa) |
15 | 4WE6G 6X/EG24N9K4 | R900561282 | Brass housing, stainless steel spool, copper coil | 1. Connector corrosion from industrial fumes; 2. Spool sticking due to water | 1. Use corrosion-resistant connectors; 2. Install a dehydrator in the hydraulic system |
16 | 4WE6H 6X/EG24N9K4 | R900561286 | Brass housing, stainless steel spool, copper coil | 1. Coil overheating from continuous switching; 2. Seal wear from oil additives | 1. Add a duty cycle controller; 2. Use additives compatible with Viton |
17 | 4WE6M 6X/EG24N9K4 | R900577475 | Brass housing, stainless steel spool, copper coil | 1. Spool wear from high-flow rates; 2. Coil burnout from overload | 1. Operate below maximum flow rate; 2. Ensure current matches coil rating |
18 | 4WE6D 6X/EW230N9K4 | R900909559 | Brass housing, stainless steel spool, copper coil | 1. Coil damage from 230V AC surges; 2. Spool sticking due to cold oil | 1. Install a voltage stabilizer; 2. Preheat the hydraulic system in cold environments |
19 | 4WE6E 6X/EW230N9K4 | R900912492 | Brass housing, stainless steel spool, copper coil | 1. Internal leakage from worn spool; 2. Coil overheating from poor ventilation | 1. Replace spool every 30 months; 2. Maintain 10cm clearance around the coil |
20 | 4WE6J 6X/EW230N9K4 | R900911762 | Brass housing, stainless steel spool, copper coil | 1. Connector loosening from vibration; 2. Coil damage from humidity | 1. Use lock nuts for connectors; 2. Install a dehumidifier in the control cabinet |
21 | 4WE6H 6X/EW230N9K4 | R900912494 | Brass housing, stainless steel spool, copper coil | 1. Spool sticking due to oil contamination; 2. Coil burnout from voltage drops | 1. Filter oil regularly; 2. Use a backup power supply to avoid voltage drops |
22 | 4WE6G 6X/EW230N9K4 | R900912493 | Brass housing, stainless steel spool, copper coil | 1. Seal wear from high-pressure cycling; 2. Coil insulation damage | 1. Replace seals every 12 months; 2. Avoid contact with sharp objects |
3. 3WE Series Solenoid Valves
3-way solenoid valves for directional control in low-pressure hydraulic systems. Key failures include coil burnout and internal leakage; genuine Rexroth valves ensure reliable performance in light-duty applications.
No. | Valve Model | Rexroth Part Number | Material | Main Wear Causes | Damage Prevention Notes |
1 | 3WE10A50/EG24N9K4/M | R900592014 | Die-cast aluminum housing, stainless steel spool, copper coil | 1. Coil burnout from voltage fluctuations; 2. Spool sticking due to oil sludge | 1. Use a voltage stabilizer (24V DC); 2. Clean oil lines every 6 months |
2 | 3WE6A 6X/EG24N9K4 | R900561180 | Brass housing, stainless steel spool, copper coil | 1. Internal leakage from worn seals; 2. Coil damage from humidity | 1. Replace NBR seals annually; 2. Use a waterproof connector |
4. 4WEH16 Series Solenoid Valves
High-flow proportional solenoid valves for heavy-duty hydraulic systems. Common failures include coil overheating and spool wear; genuine Rexroth valves feature hardened components for extended service life.
No. | Valve Model | Rexroth Part Number | Material | Main Wear Causes | Damage Prevention Notes |
1 | 4WEH16D72/HG24N9ETK4/B10 | R901108813 | Cast iron housing, hardened stainless steel spool, copper coil (B10 seal kit) | 1. Coil overheating from high current; 2. Spool wear from abrasive oil | 1. Monitor coil temperature (max 90℃); 2. Use a 3μm high-efficiency filter |
2 | 4WEH16J72/HG24N9ETK4/B10 | R901108808 | Cast iron housing, hardened stainless steel spool, copper coil (B10 seal kit) | 1. Internal leakage from seal damage; 2. Coil burnout from voltage spikes | 1. Replace Viton seals every 18 months; 2. Install a surge protector |
3 | 4WEH16E72/HG24N9ETK4/B10 | R901108754 | Cast iron housing, hardened stainless steel spool, copper coil (B10 seal kit) | 1. Spool jamming due to water in oil; 2. Coil insulation breakdown | 1. Maintain oil moisture content <150ppm; 2. Test insulation resistance quarterly |
Field Maintenance Case Study
A construction equipment manufacturer experienced frequent burnout of Rexroth 4WE6D 6X/EG24N9K4 valves (R900561274) in their excavators. Inspection revealed voltage fluctuations (24V DC ±10%) and hydraulic oil contamination (ISO Class 16). Installing voltage regulators, upgrading to 5μm filters, and switching to DIN 51524-compliant oil resolved the issue—valve service life extended from 3 months to 18 months, aligning with Rexroth’s maintenance guidelines (DIN EN ISO 12944).
FAQ
Question | Answer |
How to prevent solenoid coil burnout in Rexroth valves? | Stabilize input voltage (±5% of rated voltage), avoid continuous 24/7 switching, ensure adequate ventilation, and use waterproof connectors in humid environments. Test coil insulation resistance (≥10MΩ) monthly per Rexroth standards. |
What hydraulic oil is compatible with these Rexroth valves? | Use hydraulic oil compliant with DIN 51524 (ISO VG 32/46) with cleanliness class ISO 12103 Class 8 or higher. Avoid oils with incompatible additives that may degrade Viton/NBR seals. |
How often should seals be replaced in Rexroth solenoid valves? | Replace NBR/Viton seals every 12-18 months (annually for heavy-duty applications). For valves with B10 seal kits (e.g., 4WE6D70/HG24N9K4/B10), replace seals every 12 months to prevent internal leakage. |
Procurement Call to Action
Ensure your hydraulic systems operate at peak performance with genuine Rexroth solenoid valves. Each valve adheres to strict DIN standards and Rexroth’s original specifications, delivering reliable directional control, resistance to wear, and compatibility with industrial machinery. Backed by quality assurance and technical expertise, our genuine valves minimize downtime and extend system service life. Contact our team today to secure the exact Rexroth valve models you need for seamless operations.
contact us ：
Emeil: [email protected] whatsapp: +86 15275658619
Should you have any purchase intentions, please contact us – we will offer you our most favorable price.