KOSMEK KOLP PW: Multi-Load Overload Protector (Spring Type) | PRESTEC
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The KOSMEK KOLP PW Series is a specialized "Spring Type" overload protector for 2-point or 4-point presses (double-crank presses). When a deviated load occurs, the PW system detects the overload in one cylinder and instantly discharges oil from all cylinders simultaneously, protecting the press from damage caused by uneven loading. Like the PL series, the PW's overload pressure is factory-set with a spring, ensuring absolute stability for mass-production lines.
🛡️Eccentric Load Overload Protection System – KOSMEK KOLP PW Series
Brand: KOSMEK (Japan) | PW Series (Spring Type Multi-Load - Fixed Pressure)
Eccentric load protection solution for 2-point and 4-point press machines.
📘Introduction to KOSMEK KOLP PW Series
The KOSMEK Overload Protection System (KOLP) PW Series (Spring Type Multi-Load) is a specialized protection solution, specifically designed for presses with wide slides, such as 2-point or 4-point presses, which are very sensitive to eccentric loads.
Similar to the PL series, the PW Series' overload pressure is fixed by a spring at the factory, providing absolute stability and eliminating the risk of incorrect pressure settings. When one of the overload cylinders (O.L.C) experiences an eccentric load, the PW system will instantly release oil from all cylinders simultaneously, helping to balance and protect the machine from serious damage caused by the eccentric load.
KOSMEK KOLP PW Series
✨Key Features
- ✓Eccentric Load Protection (Multi-Load Protection): When overload is detected in one cylinder, the system releases oil from all cylinders simultaneously, protecting the machine from damage due to uneven load.
- ✓Fixed Pressure (Spring Type): Overload pressure is preset at the factory, ensuring high stability and reliability, ideal for mass production.
- ✓Extremely Fast Response: Less than 1 msec. The pilot valve directly actuates the limit switch, sending an emergency stop signal simultaneously with oil release.
- ✓Superior Repeatability Accuracy: Ensures repeatability accuracy within ±3%.
- ✓Excellent Vibration Resistance: The switch has a vibration resistance of over 70G.
- ✓Easy Recovery: Simply switch the machine to "Inching" mode, return the slide to the top dead center, remove the cause of the overload, and reset the system.
⚙️Operating Principle (PW Series Eccentric Load Protection)
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- Preparation: The built-in pump (type 16) supplies preset pressure (preload) to all overload cylinders (O.L.C). This pressure is kept stable by the pilot valve and spring.
- Eccentric Load Detection: When the press experiences an eccentric load, the pressure in one O.L.C (e.g., O.L.C 1) spikes.
- Simultaneous Release: When the pressure in O.L.C 1 exceeds the spring's set threshold, the pilot valve opens. Hydraulic oil from the pilot valve activates the opening of all Main Valves simultaneously.
- Emergency Stop: Hydraulic oil from all O.L.C.s is released at the same time. Simultaneously, the pressure switch releases an "OFF" signal to stop the machine, protecting it from damage due to eccentric load.
📋General Specifications (PW Series)
(Note: Model selection (size, pressure code) depends on the calculation of discharge flow rate and working pressure. Please refer to the technical catalog or contact PRESTEC for precise consultation.)
Related Keywords: Kosmek Overload Protector PW, KOSMEK KOLP, Overload Protector, KOSMEK PW Series, PW16, PW35, eccentric load protection, multi-load protection, 2-point press machine, 4-point press machine, spring type, fixed pressure, press machine safety system, KOSMEK Vietnam, PRESTEC.
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