Core Application & Target User Overview
This guide encompasses a full range of hydraulic components, including axial piston pumps, directional control valves, pressure control valves, flow control valves, and hydraulic auxiliary elements. These components are specifically compatible with industrial hydraulic systems such as construction machinery (excavators, loaders), industrial presses, plastic injection molding machines, metallurgical equipment, and automated production lines. Targeting hydraulic system maintenance engineers, equipment repair workshops, construction machinery operators, manufacturing enterprises, and metallurgical plants, it addresses the core demand for high-precision, durable hydraulic components to prevent system pressure instability, control failure, or unplanned downtime caused by substandard or worn parts. All products comply with ISO 4401 (hydraulic valve standards), ISO 13709 (axial piston pump standards), DIN 24342 (hydraulic component mounting standards), and CE certification requirements, undergoing rigorous pressure resistance, wear resistance, and leak tightness testing to adapt to harsh industrial environments (high pressure, continuous vibration, temperature fluctuations, and dusty conditions).
Axial Piston Pumps
Axial Piston Pumps are high-pressure, high-efficiency power cores of hydraulic systems, converting mechanical energy into hydraulic energy to drive heavy-duty actuators. Premature wear of piston pairs or swash plates can lead to insufficient system pressure, increased energy consumption, or sudden pump failure, resulting in costly production interruptions. Our axial piston pumps adopt precision-machined piston pairs and nitrided swash plates, ensuring stable high-pressure output, low noise, and long service life, fully matching the high-power demands of heavy industrial equipment.
Field Application Case
A construction company's 30-ton excavator experienced frequent boom lifting weakness and abnormal noise. Inspection revealed that the A10VS0100DRS/32RVPB12N00-S1439 axial piston pump had severe piston pair wear (wear gap exceeding 0.2mm) and swash plate ablation. After replacing with our ISO 13709-compliant axial piston pump, the excavator restored normal operating performance, with stable pressure output (fluctuation ≤±1.5%) and continuous operation for 2000 hours without faults, reducing maintenance costs by 40%.
Serial No. | Product Model (Including Part No.) | Material | Main Wear Reasons | Damage Prevention Notes |
1 | A10VS0100DRS/32RVPB12N00-S1439 | Piston: 20CrMnTi alloy steel (carburizing and quenching, surface hardness HRC 58-62); Swash plate: 42CrMo alloy steel (nitriding treatment, nitride layer thickness 0.2-0.3mm); Pump body: 35CrMo alloy steel (quenched and tempered); Shaft: 40CrNiMo alloy steel; Seal: Fluororubber (FKM); Bearings: High-carbon chromium steel (GCr15) | 1. Piston pair wear caused by contaminated hydraulic oil (particle size ≥0.02mm) scratching the mating surface; 2. Swash plate fatigue cracking caused by long-term operation at 90%+ rated pressure | 1. Maintain hydraulic oil cleanliness at ISO 4406 Class 14/11, replace high-precision oil filters every 400 operating hours; 2. Monitor system pressure in real time, avoid continuous operation above 85% of the pump's rated pressure |
2 | A4VS0250DR/30RPPB13N00 | Piston: 20CrMnTi alloy steel (carburizing and quenching); Cylinder block: 35CrMo alloy steel (nitriding treatment); Shaft: 42CrMo alloy steel; Seal: Fluororubber (FKM); Valve plate: Copper-based alloy with graphite self-lubricating coating; Bearings: GCr15 high-carbon chromium steel | 1. Cylinder block wear caused by misalignment with the drive motor (radial runout >0.05mm); 2. Shaft seal leakage caused by high-temperature operation (oil temperature >85°C) accelerating seal aging | 1. Conduct laser alignment of the pump and motor shaft quarterly, ensure axial deviation ≤0.1mm; 2. Install an oil cooler to control system oil temperature ≤80°C, inspect seal integrity monthly |
Directional Control Valves
Directional Control Valves are core control components in hydraulic systems, regulating hydraulic oil flow direction to realize commutation, start, and stop of actuators. Poor commutation response or internal leakage can lead to slow equipment movement, uncoordinated actions, or reduced operational precision, affecting production efficiency. Our directional control valves adopt precision valve core machining and multi-layer sealing structures, ensuring fast commutation response (≤0.1s), low internal leakage (≤3ml/min), and stable performance in high-vibration industrial scenarios.
Serial No. | Product Model (Including Part No.) | Material | Main Wear Reasons | Damage Prevention Notes |
1 | 4WEH16E7X/6EG24N9ETK4 | Valve body: 45# steel (quenched and tempered); Valve core: 20CrMnTi alloy steel (carburizing and quenching); Spring: 60Si2Mn alloy steel; Seal: Fluororubber (FKM); Solenoid coil: Copper wire with epoxy resin encapsulation (heat resistance class F); Valve seat: Hard alloy | 1. Valve core jamming caused by hydraulic oil contamination (sludge accumulation); 2. Solenoid coil burnout caused by voltage fluctuations (voltage deviation >±10%) | 1. Replace hydraulic oil filter every 300 operating hours, flush the system every 1200 operating hours; 2. Install a voltage stabilizer in the control circuit, monitor voltage weekly |
2 | 4WP6D6X/N R900755395 | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 55CrSi alloy steel; Seal: Nitrile rubber (NBR); Diaphragm: EPDM rubber; Adjusting knob: Aluminum alloy | 1. Diaphragm aging and cracking caused by long-term contact with incompatible hydraulic oil additives; 2. Valve core wear caused by frequent manual commutation | 1. Use hydraulic oil compatible with EPDM rubber (per ASTM D471); 2. Apply molybdenum disulfide lubricating grease to the valve core and knob mechanism every 200 operating hours |
3 | M3SEW6U3X/420MG24N9K4 R900566283 | Valve body: 304 stainless steel; Valve core: 1.4021 alloy steel (hard chrome plating); Spring: 55CrSi alloy steel; Seal: Fluororubber (FKM); Solenoid coil: Copper wire with heat-resistant encapsulation (420V compatible) | 1. Solenoid coil damage caused by dust and moisture intrusion; 2. Valve core jamming caused by improper installation (valve body tilt >3°) | 1. Install a protective cover on the solenoid coil, seal cable entries with silicone rubber; 2. Install the valve horizontally, ensure tilt angle ≤2° using a level meter |
4 | 4WE6J7X/HG24N9K4/B10 | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: Fluororubber (FKM); Solenoid coil: Copper wire with epoxy resin encapsulation; Buffer sleeve: Nylon | 1. Seal leakage caused by high-pressure hydraulic oil cycling; 2. Valve core jamming caused by rust in the hydraulic system | 1. Inspect seals quarterly, replace with new ones if signs of aging (cracking, hardening) appear; 2. Add an anti-rust additive to the hydraulic oil, drain and replace oil annually |
5 | 4WE10C33/CG24N9K4 | Valve body: 45# steel (quenched and tempered); Valve core: 20CrMnTi alloy steel (carburizing and quenching); Spring: 55CrSi alloy steel; Seal: Nitrile rubber (NBR); Solenoid coil: Copper wire with heat-resistant encapsulation | 1. Solenoid coil overheating caused by long-term energization; 2. Valve body deformation caused by uneven installation force | 1. Avoid long-term continuous energization of the solenoid coil, use a time relay if necessary; 2. Use a torque wrench to tighten mounting bolts uniformly per DIN 24342 specifications |
6 | 4WE6E73-6X/EG110N9K4/A12 R900249050 | Valve body: 304 stainless steel; Valve core: 1.4021 alloy steel (hard chrome plating); Spring: 55CrSi alloy steel; Seal: Fluororubber (FKM); Solenoid coil: Copper wire with epoxy resin encapsulation (AC 110V compatible) | 1. Solenoid coil failure caused by voltage spikes; 2. Valve core wear caused by high-velocity oil flow | 1. Install a surge protector in the control circuit to absorb voltage spikes; 2. Ensure the valve is installed in a low-flow velocity area of the system |
7 | 4WRPEH 6 C4 B12L-2X/G24KO/F1M (0811404351) | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: Fluororubber (FKM); Solenoid coil: Copper wire with epoxy resin encapsulation (feedback control design) | 1. Internal leakage caused by valve seat wear; 2. Solenoid coil damage caused by feedback signal interference | 1. Replace the valve seat every 1200 operating hours; 2. Route feedback signal lines separately from power cables to avoid electromagnetic interference |
8 | R900933643 (Z4WE6E63-31/EG24N9K4QMAG24) | Valve body: 45# steel (quenched and tempered); Valve core: 20CrMnTi alloy steel (carburizing and quenching); Spring: 55CrSi alloy steel; Seal: Fluororubber (FKM); Solenoid coil: Copper wire with epoxy resin encapsulation (double coil design) | 1. Spool jamming caused by foreign object intrusion during maintenance; 2. Solenoid coil burnout caused by overload current | 1. Clean the valve and surrounding area before maintenance, avoid debris entering the valve body; 2. Install a current fuse in the control circuit, matching the rated current of the solenoid coil |
9 | R900744409 (Z4WEH10E63-50/4KEG24N9ETK4QMAG24) | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: Fluororubber (FKM); Solenoid coil: Copper wire with heat-resistant encapsulation | 1. Seal leakage caused by high-temperature operation (ambient temperature >60°C); 2. Valve core wear caused by long-term use | 1. Install a heat shield if the valve is near high-temperature components, maintain ambient temperature ≤55°C; 2. Calibrate the valve every 800 operating hours, replace the valve core if wear exceeds 0.03mm |
Pressure Control Valves
Pressure Control Valves are critical safety and regulation components, stabilizing system pressure, preventing overpressure damage to components, and adjusting pressure for different working conditions. Malfunction can lead to system pressure instability, component fatigue failure, or even catastrophic explosions. Our pressure control valves adopt precision pressure-adjusting mechanisms and high-strength materials, ensuring accurate pressure control (error ≤±2%) and reliable overpressure protection, fully complying with ISO 4401 standards.
Serial No. | Product Model (Including Part No.) | Material | Main Wear Reasons | Damage Prevention Notes |
1 | R901000846 DBET6X/200G24K4V | Valve body: 45# steel (quenched and tempered); Spool: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: Fluororubber (FKM); Solenoid coil: Copper wire with epoxy resin encapsulation; Adjusting screw: 40Cr alloy steel with lock nut | 1. Spool wear caused by high-pressure oil flow erosion; 2. Adjusting screw loosening caused by long-term vibration | 1. Install the valve in a position with low flow turbulence, ensure correct flow direction; 2. Lock the adjusting screw with a lock nut after setting pressure, re-check torque monthly |
2 | ZDB6VP2-4X/200V R900409844 | Valve body: 35CrMo alloy steel; Spool: 20CrMnTi alloy steel (carburizing and quenching); Spring: 55CrSi alloy steel; Seal: Nitrile rubber (NBR); Adjusting screw: 40Cr alloy steel | 1. Spool jamming caused by hydraulic oil contamination; 2. Spring fatigue caused by long-term compression | 1. Replace hydraulic oil filter every 300 operating hours, ensure oil cleanliness meets ISO 4406 Class 13/10; 2. Inspect spring elasticity every 600 operating hours, replace if deformation is found |
3 | R901335400 DBEM107X/200YG24K4M | Valve body: 35CrMo alloy steel; Spool: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: Fluororubber (FKM); Solenoid coil: Copper wire with heat-resistant encapsulation | 1. Internal leakage caused by spool wear; 2. Solenoid coil failure caused by moisture intrusion | 1. Calibrate the valve every 800 operating hours, replace spool if leakage exceeds 5ml/min; 2. Install the valve in a moisture-proof control cabinet, seal cable entries |
4 | R900410808 (ZDR6DA2-4X/25Y) | Valve body: 304 stainless steel; Spool: 1.4021 alloy steel (hard chrome plating); Spring: 55CrSi alloy steel; Seal: Fluororubber (FKM); Adjusting knob: Aluminum alloy | 1. Valve body corrosion caused by corrosive media in the hydraulic system; 2. Spool jamming caused by foreign object intrusion | 1. Use corrosion-resistant hydraulic oil, inspect valve body for corrosion monthly; 2. Install a filter at the valve inlet to prevent foreign objects from entering |
5 | R900422189 ZDB10VA24X/200V | Valve body: 45# steel (quenched and tempered); Spool: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: Fluororubber (FKM); Adjusting screw: 40Cr alloy steel | 1. Spool jamming caused by rust in the hydraulic system; 2. Adjusting screw wear caused by frequent adjustment | 1. Add an anti-rust additive to the hydraulic oil, drain and replace oil annually; 2. Avoid frequent pressure adjustments, mark the optimal pressure setting position |
6 | ZDR6DB2-4X/210YM R900463269 | Valve body: 35CrMo alloy steel; Spool: 20CrMnTi alloy steel (carburizing and quenching); Spring: 55CrSi alloy steel; Seal: Nitrile rubber (NBR); Adjusting screw: 40Cr alloy steel | 1. Seal aging caused by chemical degradation; 2. Spring breakage caused by over-adjustment of pressure | 1. Use hydraulic oil compatible with NBR seals (per ASTM D471); 2. Do not adjust pressure beyond the rated range of the valve (marked on the nameplate) |
7 | DBDS20K1X/315 R900424271 | Valve body: 45# steel (quenched and tempered); Valve disc: 20CrMnTi alloy steel (carburizing and quenching); Spring: 55CrSi alloy steel; Seal: Fluororubber (FKM); Seat: Hard alloy (WC-Co) | 1. Valve disc wear caused by frequent overpressure relief; 2. Seal leakage caused by high-temperature oil (oil temperature >85°C) | 1. Optimize system pressure setting to avoid frequent overpressure operation; 2. Install an oil cooler to control oil temperature ≤80°C |
8 | 0811104113 ZDBTXP21X/315 | Valve body: 35CrMo alloy steel; Spool: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: Fluororubber (FKM); Adjusting screw: 40Cr alloy steel with lock nut | 1. Spool wear caused by high-velocity oil flow; 2. Valve body deformation caused by uneven installation force | 1. Install the valve in a low-flow velocity area; 2. Use a torque wrench to tighten mounting bolts uniformly, avoid over-tightening |
9 | DBDS6P1X/315 | Valve body: 304 stainless steel; Valve disc: 1.4021 alloy steel (hard chrome plating); Spring: 55CrSi alloy steel; Seal: Fluororubber (FKM); Seat: Bronze | 1. Valve disc corrosion caused by moisture in hydraulic oil; 2. Seal leakage caused by pressure cycling | 1. Check hydraulic oil for water content monthly, replace oil if water content exceeds 0.1%; 2. Inspect seals quarterly, replace with new ones if necessary |
Flow Control Valves & Check Valves
Flow Control Valves and Check Valves regulate hydraulic oil flow rate, ensuring stable actuator movement, while check valves prevent oil backflow to protect system components. Malfunction can lead to inconsistent actuator speed, reduced precision, or energy waste. Our flow control valves adopt precision flow-regulating orifices and reliable structural design, ensuring accurate flow control (error ≤±3%) and long-term stable operation.
Serial No. | Product Model (Including Part No.) | Material | Main Wear Reasons | Damage Prevention Notes |
1 | Z2S626X | Valve body: 35CrMo alloy steel; Spool: 42CrMo alloy steel (nitriding treatment); Spring: 55CrSi alloy steel; Seal: Nitrile rubber (NBR); Seat: Bronze | 1. Spool wear caused by high-velocity oil flow; 2. Seal leakage caused by incompatible hydraulic oil additives | 1. Ensure the valve is installed in the correct flow direction to reduce flow velocity impact; 2. Use hydraulic oil compatible with NBR seals (per ASTM D471) |
2 | Z2FS1683X/S2 R900566283 | Valve body: 45# steel (quenched and tempered); Spool: 20CrMnTi alloy steel (carburizing and quenching); Spring: 55CrSi alloy steel; Seal: Fluororubber (FKM); Seat: Hard alloy | 1. Valve seat wear caused by frequent flow regulation; 2. Spool jamming caused by hydraulic oil contamination | 1. Avoid frequent and rapid flow adjustments; 2. Replace hydraulic oil filter every 300 operating hours, ensure oil cleanliness meets ISO 4406 Class 13/10 |
3 | LFA32GWA-7X/ | Valve body: 35CrMo alloy steel; Spool: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: Fluororubber (FKM); Adjusting screw: 40Cr alloy steel | 1. Spool wear caused by high-pressure oil flow erosion; 2. Adjusting screw loosening caused by vibration | 1. Install the valve in a low-flow velocity area; 2. Lock the adjusting screw with a lock nut, check torque quarterly |
4 | R901086060 Z1S6T50-4X/V | Valve body: 304 stainless steel; Spool: 1.4021 alloy steel (hard chrome plating); Spring: 55CrSi alloy steel; Seal: Fluororubber (FKM); Adjusting knob: Plastic-reinforced nylon | 1. Valve body corrosion caused by outdoor exposure; 2. Spool jamming caused by foreign object intrusion | 1. Install the valve in a waterproof control cabinet for outdoor applications; 2. Clean the valve and surrounding area before maintenance |
5 | R901086051 (Z1S6P05-4X/V) | Valve body: 35CrMo alloy steel; Spool: 42CrMo alloy steel (nitriding treatment); Spring: 55CrSi alloy steel; Seal: Nitrile rubber (NBR); Seat: Bronze | 1. Seal aging caused by high-temperature operation; 2. Spool wear caused by long-term use | 1. Install a heat shield if the valve is near high-temperature components; 2. Calibrate the valve every 800 operating hours, replace spool if wear exceeds 0.03mm |
6 | Z1S10T13X/V | Valve body: 304 stainless steel; Spool: 1.4021 alloy steel (hard chrome plating); Spring: 55CrSi alloy steel; Seal: Fluororubber (FKM); Seat: Bronze | 1. Seal leakage caused by pressure cycling; 2. Valve body corrosion caused by moisture in hydraulic oil | 1. Inspect seals quarterly, replace with new ones if necessary; 2. Check hydraulic oil for water content monthly, add a water separator if needed |
7 | FD32FB2X/200/B06 R900515258 | Valve body: 45# steel (quenched and tempered); Spool: 20CrMnTi alloy steel (carburizing and quenching); Spring: 60Si2Mn alloy steel; Seal: Fluororubber (FKM); Filter element: Stainless steel mesh (200 mesh) | 1. Filter element clogging caused by hydraulic oil contamination; 2. Spool jamming caused by sludge accumulation | 1. Clean or replace the filter element every 200 operating hours; 2. Flush the hydraulic system every 1000 operating hours, replace hydraulic oil if sludge is found |
8 | Z1S10P05-1-4X/F | Valve body: 35CrMo alloy steel; Spool: 42CrMo alloy steel (nitriding treatment); Spring: 55CrSi alloy steel; Seal: Nitrile rubber (NBR); Seat: Bronze | 1. Spool jamming caused by rust in the hydraulic system; 2. Adjusting knob loosening caused by accidental collision | 1. Add an anti-rust additive to the hydraulic oil; 2. Install a protective cover around the adjusting knob to prevent accidental collision |
Hydraulic Auxiliary Elements
Hydraulic Auxiliary Elements (accumulators, heaters, pressure switches, etc.) are essential for ensuring stable system operation, storing energy, controlling temperature, and monitoring pressure. Malfunction can lead to system energy waste, overheating, or failure to detect pressure anomalies. Our auxiliary elements adopt reliable structural design and high-quality materials, adapting to various industrial hydraulic system requirements.
Serial No. | Product Model (Including Part No.) | Material | Main Wear Reasons | Damage Prevention Notes |
1 | R900032835 VT10468-3X/B0R0 | Valve body: 304 stainless steel; Diaphragm: EPDM rubber; Spring: 55CrSi alloy steel; Connector: Copper alloy; Housing: Aluminum alloy | 1. Diaphragm aging and cracking caused by long-term temperature changes; 2. Connector loosening caused by vibration | 1. Inspect the diaphragm quarterly, replace if signs of aging appear; 2. Tighten connectors monthly, apply anti-loosening thread lock compound |
2 | ZDC10P-2X/XM R900488820 | Valve body: 35CrMo alloy steel; Spool: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: Fluororubber (FKM); Adjusting screw: 40Cr alloy steel | 1. Spool jamming caused by hydraulic oil contamination; 2. Adjusting screw wear caused by frequent adjustment | 1. Replace hydraulic oil filter every 300 operating hours; 2. Avoid frequent pressure adjustments, mark the optimal setting position |
3 | ZDC32P-2X/V R900437430 | Valve body: 45# steel (quenched and tempered); Spool: 20CrMnTi alloy steel (carburizing and quenching); Spring: 55CrSi alloy steel; Seal: Fluororubber (FKM); Adjusting screw: 40Cr alloy steel | 1. Seal leakage caused by high-pressure operation; 2. Valve body deformation caused by uneven installation force | 1. Inspect seals quarterly, replace with new ones if necessary; 2. Use a torque wrench to tighten mounting bolts uniformly |
4 | R900489027 ZDC25P-2X/XM | Valve body: 35CrMo alloy steel; Spool: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: Fluororubber (FKM); Adjusting screw: 40Cr alloy steel | 1. Spool wear caused by high-velocity oil flow; 2. Spring fatigue caused by long-term compression | 1. Install the valve in a low-flow velocity area; 2. Inspect spring elasticity every 600 operating hours, replace if deformation is found |
5 | S20P05-1X | Housing: Aluminum alloy; Piston: 20CrMnTi alloy steel (carburizing and quenching); Seal: Nitrile rubber (NBR); Spring: 55CrSi alloy steel | 1. Piston wear caused by contaminated hydraulic oil; 2. Seal aging caused by long-term use | 1. Maintain hydraulic oil cleanliness at ISO 4406 Class 14/11; 2. Replace seals annually |
6 | S15A1.0/ | Housing: 304 stainless steel; Diaphragm: PTFE; Spring: 55CrSi alloy steel; Connector: Stainless steel | 1. Diaphragm damage caused by contact with sharp foreign objects; 2. Connector corrosion caused by outdoor exposure | 1. Install a filter upstream to prevent sharp foreign objects from entering; 2. Install the component in a waterproof, dustproof enclosure for outdoor use |
7 | AB32-10/2 D 380 R900212569 Rexroth | Housing: Aluminum alloy; Coil: Copper wire with epoxy resin encapsulation; Core: 1.4021 alloy steel; Seal: Fluororubber (FKM); Connector: Copper alloy | 1. Coil burnout caused by voltage fluctuations; 2. Core jamming caused by rust | 1. Install a voltage stabilizer in the control circuit; 2. Add an anti-rust additive to the hydraulic system, inspect core for rust monthly |
8 | ABZAS-050-016-G-P-1X/M R900986074 | Housing: 304 stainless steel; Gear: 20CrMnTi alloy steel (carburizing and quenching); Shaft: 42CrMo alloy steel; Seal: Fluororubber (FKM); Bearings: GCr15 high-carbon chromium steel | 1. Gear wear caused by contaminated hydraulic oil; 2. Bearing wear caused by insufficient lubrication | 1. Replace hydraulic oil filter every 300 operating hours; 2. Ensure sufficient hydraulic oil supply, check oil level weekly |
9 | ABZAS-100-016-G-K-1X/M+ZS322-11Y-M20 R900986107 | Housing: 304 stainless steel; Gear: 20CrMnTi alloy steel (carburizing and quenching); Shaft: 42CrMo alloy steel; Seal: Fluororubber (FKM); Connector: Stainless steel; Bracket: Aluminum alloy | 1. Gear fatigue cracking caused by overload operation; 2. Bracket deformation caused by uneven installation | 1. Avoid operating beyond the rated load of the component; 2. Install the bracket on a flat surface, ensure uniform force distribution |
10 | MOTOR OELHEIZ- FZ025-4DA.4C.1 1A6 R900203590 Rexroth | Housing: Aluminum alloy; Heating element: Nickel-chromium alloy; Insulation layer: Ceramic fiber; Connector: Copper alloy with heat-resistant insulation | 1. Heating element burnout caused by dry heating (no oil contact); 2. Insulation layer aging caused by long-term high-temperature operation | 1. Ensure the heating element is fully immersed in hydraulic oil before energization; 2. Inspect the insulation layer quarterly, replace if damaged |
11 | ZDC32P-2X/XM R900352039 | Valve body: 45# steel (quenched and tempered); Spool: 20CrMnTi alloy steel (carburizing and quenching); Spring: 60Si2Mn alloy steel; Seal: Fluororubber (FKM); Adjusting screw: 40Cr alloy steel | 1. Spool jamming caused by hydraulic oil sludge accumulation; 2. Adjusting screw loosening caused by vibration | 1. Flush the hydraulic system every 1000 operating hours; 2. Lock the adjusting screw with a lock nut, re-check torque monthly |
12 | R900488023 ZDC10P-2X/M | Valve body: 35CrMo alloy steel; Spool: 42CrMo alloy steel (nitriding treatment); Spring: 55CrSi alloy steel; Seal: Nitrile rubber (NBR); Adjusting screw: 40Cr alloy steel | 1. Seal leakage caused by chemical degradation; 2. Spool wear caused by long-term use | 1. Use hydraulic oil compatible with NBR seals (per ASTM D471); 2. Calibrate the valve every 800 operating hours, replace spool if necessary |
13 | R900728143 HSZ-06-A433-31/PRDB-LDN-K1CG24N9K4M01 | Housing: 304 stainless steel; Solenoid coil: Copper wire with epoxy resin encapsulation; Spool: 1.4021 alloy steel (hard chrome plating); Seal: Fluororubber (FKM); Spring: 55CrSi alloy steel | 1. Solenoid coil failure caused by moisture intrusion; 2. Spool jamming caused by foreign object intrusion | 1. Install the component in a moisture-proof control cabinet; 2. Install a filter at the inlet to prevent foreign objects from entering |
14 | 0821201003 | Housing: Aluminum alloy; Piston: 20CrMnTi alloy steel (carburizing and quenching); Seal: Fluororubber (FKM); Spring: 60Si2Mn alloy steel; Connector: Copper alloy | 1. Piston wear caused by contaminated hydraulic oil; 2. Seal aging caused by high-temperature operation | 1. Replace hydraulic oil filter every 300 operating hours; 2. Install an oil cooler to control system oil temperature ≤80°C |
15 | AB21-18/38SR-315V R900027317 | Housing: 35CrMo alloy steel; Diaphragm: EPDM rubber; Spring: 55CrSi alloy steel; Connector: Stainless steel; Adjusting knob: Aluminum alloy | 1. Diaphragm damage caused by pressure impact; 2. Adjusting knob loosening caused by accidental collision | 1. Install a pressure buffer upstream to absorb pressure shocks; 2. Install a protective cover around the adjusting knob |
16 | HSZ10A079-3X/M00 | Housing: 304 stainless steel; Solenoid coil: Copper wire with epoxy resin encapsulation; Spool: 42CrMo alloy steel (nitriding treatment); Seal: Fluororubber (FKM); Spring: 55CrSi alloy steel | 1. Solenoid coil overheating caused by long-term energization; 2. Spool jamming caused by rust in the hydraulic system | 1. Avoid long-term continuous energization, use a time relay if necessary; 2. Add an anti-rust additive to the hydraulic oil |
Procurement & Technical Support Guidelines
Selecting high-quality, compatible hydraulic components is crucial to ensuring the safe, efficient, and stable operation of industrial hydraulic systems, reducing maintenance costs and avoiding unplanned downtime. Our hydraulic components fully comply with ISO 4401, ISO 13709, and DIN 24342 standards, with complete material traceability reports, pressure test certificates, and leak tightness inspection reports. We provide professional technical support, including component selection based on system pressure, flow, application scenario, and equipment model, on-site installation and calibration guidance, and post-sales maintenance consultation. Whether you need single-component replacements, bulk inventory preparation, or customized hydraulic component solutions for special industrial applications (such as high-temperature, high-corrosion, or high-vibration environments), our team is committed to delivering reliable products and tailored services. Contact us today to discuss your hydraulic component requirements and obtain optimized procurement and application solutions.
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.