The High Pressure VMC Coolant Rotary Union – Dry Run Pop-Off Type is a precision-engineered rotary union designed to deliver high-pressure coolant directly to the rotating spindle of CNC and VMC machining centers. This rotary union is specially developed for through-spindle coolant (TSC) applications, where consistent coolant flow and seal protection are critical.
The integrated dry run pop-off mechanism protects the internal seal by automatically disengaging during dry run conditions and re-engaging when coolant pressure is applied. This intelligent safety feature prevents seal damage, extends service life, and ensures reliable operation even in demanding high-speed machining environments. Each unit can be customized to meet specific spindle and application requirements.
High-pressure coolant delivery for CNC & VMC spindles
Advanced dry run pop-off system for seal protection
Automatically engages and disengages based on coolant pressure
Designed for high-speed and high-pressure applications
Supports through-spindle coolant (TSC) systems
Robust construction for long service life
Customizable design as per machine configuration
| Parameter | Specification |
|---|---|
| Product Type | High Pressure VMC Coolant Rotary Union – Dry Run Pop-Off Type |
| Size Range | 1/4″, 3/8″, 1/2″, 3/4″, 1″ |
| Connection Type | Thread / Flange Mounted (as per application) |
| Pressure Range | Full Vacuum to 70 Bar / up to 120 Bar |
| Temperature Range | 0 – 80°C (Standard) |
| Operating RPM | 8,000 – 12,000 RPM |
| Flow Options | Single Flow, Dual Flow, Through-Spindle Coolant (TSC), Radial & Axial Flow |
| Bearing Type | Double Ball Bearing |
| Dry Run Protection | Automatic Pop-Off Mechanism |
| Application Media | Coolant |
| Typical Applications | CNC Machines, VMC Machining Centers |
| Material Options | Stainless Steel (SS304, SS316L), Aluminium, etc. |
| Customization | Available as per machine & application requirement |
| Spare Seal Kit | Available in all sizes |
Note :
Reliable, high-performance Rotary Unions, Mechanical Seals & Slip Rings designed for all industrial applications.
