HD – WMU/R – Roller Operated Directional Valve
Automate your hydraulic sequences with the mechanical precision of the HD WMU/R Series Roller Operated Directional Valve. Available through Thm Hydraulics, this direct-operated spool valve is engineered for applications where fluid direction must be triggered by physical machine movement. Designed to handle maximum operating pressures up to 315 bar and flow rates reaching 120 L/min, the WMU/R series is the perfect solution for cam-driven automation, limit-switching, and synchronized hydraulic cycles. Featuring a highly adjustable roller lever assembly and the ability to absorb significant radial forces, this valve provides the rugged, sensor-free reliability required for high-speed industrial production lines.
Core Technical Specifications:-
- Component Architecture: Direct Operated Roller Actuated Directional Spool Valve
- Nominal Size: Available in standard sizes (compatible with Size 6 and 10 patterns)
- Maximum Operating Pressure: Up to 315 bar
- Maximum Flow Capacity: Up to 120 L/min
- Actuation Type: Adjustable Roller Lever
- Spool Variety: 19 distinct standard spool functions available
Key Features & Engineering Advantages:-
- Highly Adjustable Actuation: The roller lever assembly is designed to be stepped in 90° increments. This allows for 360-degree mounting flexibility, ensuring the roller can perfectly interface with your machine's cam or moving parts regardless of the manifold orientation.
- Robust Radial Force Absorption: Engineered to reliably absorb radial forces at angles up to 30°. This high-tolerance design prevents the internal spool from binding or wearing prematurely when triggered by fast-moving mechanical cams.
- 19 Standard Spool Functions: With nearly 20 different spool configurations, this valve can be precisely matched to your circuit needs—whether you require simple ON/OFF logic, motor-spool configurations, or complex pressure-relieving pathways.
- Sensor-Free Automation: By using mechanical contact for switching, the WMU/R eliminates the need for electrical limit switches, wiring, and PLCs in simple sequencing tasks. This significantly reduces the risk of electrical failure in wash-down or high-vibration environments.
- Direct-Operated Reliability: The simplified mechanical link between the roller and the spool ensures immediate hydraulic response with minimal moving parts, leading to an exceptionally long service life in high-cycle industrial applications.
Ideal Industry Applications:-
The mechanical triggering and 315 bar pressure rating make the HD WMU/R Valve the premier choice for:
- Automated Production Lines: Synchronizing hydraulic cylinder movements with conveyor belts or rotating indexing tables.
- Machine Tooling & CNC Units: Acting as a mechanical safety limit or sequence trigger for work-holding clamps and tool changers.
- Industrial Baling & Compaction: Automatically reversing or stopping hydraulic rams once a physical mechanical limit has been reached.
- Material Handling & Lifting: Providing reliable, non-electric end-of-stroke deceleration or stop functions for heavy lifting platforms and industrial elevators.
Why Choose the HD WMU/R Series?
- Simplify Your Control Circuit: Why use complex electronics when a simple mechanical roller can do the job? The WMU/R offers fail-safe performance without the need for a power supply.
- Versatile Mounting: The 90-degree adjustable head means this valve can fit into tight spaces where other limit-switching valves simply can't reach.
- Heavy-Duty Construction: Forged to withstand 315 bar, this valve is not just a "switch"—it is a high-pressure power component built for the most brutal industrial cycles.
