THM – 4WEH – 12 Surface Grinder Valve – Accessories
Achieve flawlessly smooth, shockless machine operation with the THM 4WEH-12 Series Surface Grinder Directional Control Valve. Engineered specifically for high-precision machine tools that demand perfectly smooth mechanical reversals, this solenoid-controlled, pilot-operated valve is the ultimate solution for eliminating destructive hydraulic shock. By utilizing an advanced triple-adjustment system, it allows technicians to fine-tune spool shifting times, entirely neutralizing oil hammering, piping vibrations, and machine jerks. Capable of processing flow rates of 30 L/min or 40 L/min and available in multiple voltage configurations (AC110V, AC220V, DC24V), the 4WEH-12 is the premier upgrade for industrial surface grinding machines where surface finish and mechanical stability are absolutely critical.
Core Technical Specifications:-
- Valve Architecture: Solenoid-Controlled, Pilot-Operated Directional Control Valve
- Model Series: THM 4WEH-12/16-SG
- Maximum Flow Rate: 30 L/min or 40 L/min configurations
- Operating Voltages: AC 110V / AC 220V / DC 24V
- Specialty Profile: Shockless operational design for smooth mechanical reversal
Key Features & Engineering Advantages
- Absolute Shockless Reversal: Equipped with a precision mechanical screw to manually adjust the spool shifting time. This allows operators to perfectly dial in the directional changeover, ensuring the machine bed reverses direction with zero mechanical slamming.
- Advanced Triple-Adjustment System: Features a highly customizable combination of a Spool Stroke Adjustment Screw, a Meter-Out Pilot Oil Flow Adjustment Screw, and a Pilot Oil Tank Line Throttle Adjustment Screw. This gives technicians unprecedented control over the valve's exact operational dynamics.
- Vibration & Hammering Elimination: By precisely controlling the pilot oil and spool stroke, this valve entirely eradicates hydraulic oil hammering and severe piping vibrations, protecting delicate grinding wheels and ensuring a flawless finish on the workpiece.
- Versatile Electrical Integration: Available with AC110V, AC220V, or DC24V solenoid coils, ensuring seamless plug-and-play integration into the electrical cabinets of virtually any modern or legacy machine tool.
- Heavy-Duty Reliability: Machined to exacting tolerances to withstand the continuous, high-cycle rapid reversals demanded by automated manufacturing and heavy metalworking environments.
Ideal Industry Applications
The ultra-smooth shifting and vibration-eliminating characteristics of the 4WEH-12 Series make it the mandatory control valve for:
- Precision Surface Grinding: Providing the completely shock-free table reversals required to achieve mirror-like, high-tolerance surface finishes on heavy metal workpieces.
- Advanced Machine Tools: Managing the fluid power for complex milling machines, automated lathes, and CNC equipment where mechanical jerking would ruin the tooling or the part.
- Industrial Metalworking: Upgrading the reliability and lifespan of heavy metal-cutting and forming equipment by eliminating destructive hydraulic hammering in the rigid piping.
- Automated Testing & Honing: Serving as the precise, smooth-shifting control brain for automated honing machines and specialized industrial testing rigs.
Why Choose the THM 4WEH-12 Series?
- Flawless Surface Finishes: Eliminating machine jerk means your grinding wheels leave a perfectly smooth, chatter-free surface every single pass.
- Extended Machine Lifespan: Eradicating hydraulic shock protects your rigid piping, pump seals, and machine bed ways from premature, violent wear.
- Ultimate Tunability: The triple-adjustment system lets you perfectly synchronize the valve's response to your machine's exact weight and speed.
