Guangdong Yanhui Hydraulic Co., Ltd. is one of the leading manufacturers and suppliers of Moog D635 in China. We warmly welcome you to wholesale bulk Moog D635 for sale here from our factory. If you have any enquiry about pricelist and quotation, please feel free to email us.
Why Choose Yanhui Hydraulic?
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- Professional consultation on valve selection and installation
- Assistance with technical specifications and system integration
- Access to genuine parts and other top hydraulic brands
- Quick and safe shipping worldwide
- Reliable after-sales service and troubleshooting guidance
Product Overview
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The Moog D635 Series is a high-performance proportional electrohydraulic control valve featuring integrated digital electronics (On-Board Electronics - OBE). Designed as a pilot-operated or direct-drive flow control solution depending on the frame size, the D635 series delivers precise position, pressure, and velocity control for closed-loop hydraulic applications. Positioned as Moog's flagship digital proportional valve series, it bridges the gap between conventional proportional valves and high-response servovalves, making it ideal for demanding industrial machinery requiring high dynamics, precise repeat accuracy, and fieldbus communication capabilities.
Key Advantages
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- Direct drive technology ensures high precision and fast response
- Excellent contamination tolerance compared to traditional servo valves
- Reduced hysteresis for accurate control performance
- Compact design suitable for space-limited installations
- Long service life with minimal maintenance requirements
- Stable operation under high-pressure conditions
Technical Specifications
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| Technical Parameter | Specification Value / Unit |
| Maximum Operating Pressure (Ports P, A, B) | Up to 350 bar (5075 psi) |
| Maximum Return Port Pressure (Port T) | Up to 210 bar (3045 psi) or 350 bar with external drain |
| Rated Flow Range (at delta p = 35 bar per land) | 5 L/min to 100 L/min (depending on spool/size) |
| Operating Fluid Temperature Range | -20 degrees C to +80 degrees C (-4 degrees F to +176 degrees F) |
| Ambient Temperature Range | -20 degrees C to +60 degrees C (-4 degrees F to +140 degrees F) |
| Fluid Viscosity Range | 15 to 400 mm2/s (cSt) |
| Hysteresis | Less than 0.1% |
| Response Time (Step response 0 to 100%) | 8 ms to 15 ms (model dependent) |
| Command Signal Options | +/- 10 V, 4-20 mA, CANopen, Profibus DP, EtherCAT |
| Supply Voltage | 24 VDC (18 to 32 VDC nominal) |
| IP Protection Rating | IP65 (with properly mounted mating connector) |
Applications
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- Plastic Injection Molding Machines: Controls high-speed mold closing, injection speed profiles, and clamp pressure regulation with rapid step-response performance.
- Metal Stamping and Hydraulic Presses: Manages dynamic ram position, force control during deep drawing, and synchronized multi-axis movement.
- Blow Molding & Die Casting Equipment: Regulates precise wall-thickness (parison) control and molten alloy shot-cylinder acceleration.
- Test Benches & Flight Simulators: Provides dynamic high-frequency actuation and realistic load generation with accurate motion replication.
Related Models
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| Model Number | Type / Feature Description |
| D635-001A | Digital Proportional Valve, +/-10V Command, ISO 4401-03, 10 L/min |
| D635-002B | Digital Proportional Valve, 4-20mA Command, ISO 4401-03, 20 L/min |
| D635-003C | Fieldbus Proportional Valve with CANopen Interface, ISO 4401-05, 40 L/min |
| D635-004D | High-Response Servoproportional Valve, EtherCAT Communication, 63 L/min |
| D635-005E | Fail-Safe Position Control Valve, 24VDC, ISO 4401-05, 100 L/min |
FAQ
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What makes the Moog D635-606B different from traditional servo valves?
The D635-606B uses direct drive technology, which eliminates the pilot stage found in traditional servo valves. This results in faster response, better reliability, and improved contamination resistance.
Is the D635-606B compatible with my existing system?
It typically follows ISO mounting standards, making it compatible with many systems. However, always confirm dimensions, electrical interfaces, and hydraulic requirements before installation.
Contact Us
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Request a Quote Today to ensure your hydraulic system performs at its best with genuine components from Yanhui Hydraulic.
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