If you run a CNC machine, you know the drill. You hit cycle start, the coolant kicks on, and within seconds, your machine window is a solid brown wall. You are officially flying blind.
For decades, machinists have tried everything to see through the coolant spray. Air blasts that barely clear a peephole. Automotive ceramic coatings that wash off in a week. Tablet screen protectors. But when you are running high-pressure coolant at 1,000 PSI, none of these band-aid solutions hold up on a production floor.
The only true solution for continuous visual monitoring inside a machine tool is a self-cleaning spinning window. By using centrifugal force, a spin window flings coolant and chips away from the glass, providing a perfectly clear view of the machining process at all times.
Until now, however, adding a rotary viewing window to your CNC machine meant dealing with long lead times, mandatory distributor quotes, and price tags north of $3,200.
That changes today with the official launch of CoolantClear™.
The Problem with Traditional CNC Spin Windows
Spinning windows for machine tools are not a new concept. European manufacturers like Rotoclear and Visiport have dominated the CNC spin window market for years. Products like the Rotoclear S3 are undeniably effective at keeping the inspection window clean and ensuring continuous control of the workflow.
However, for the average job shop or production floor, these legacy spinning window systems present three major hurdles:
- The Price Tag: A standard Rotoclear S3 setup typically starts around $3,250, and that is before you factor in installation hardware or replacement rotors. Some distributor quotes come in even higher.
- The Purchasing Friction: You cannot simply buy a Rotoclear spinning window online. You have to request a quote, wait for a distributor to get back to you, and navigate a lengthy sales process before a single unit ships.
- The Complexity: Many legacy rotary wiper systems require complex pneumatic sealing air setups or extensive machine modifications to install, making them impractical for retrofit applications.
When we looked at the market, we realized that shops did not need a more complicated system. They needed a reliable, affordable Rotoclear alternative that they could buy today and install tomorrow.
Enter CoolantClear™: The Rotary Viewing Window Built for Real Shops
CoolantClear™ was designed specifically to solve the CNC window coolant problem without the exorbitant markup. After a highly successful, quiet beta program with shops across the country — where every single unit is still running flawlessly with zero complaints — CoolantClear™ is now officially available to the public.
How It Works
CoolantClear™ mounts directly inside your existing CNC door window using an industrial-grade adhesive and sealed plate. There is no drilling required, no wiring through the enclosure, making it incredibly retrofit-friendly for virtually any milling machine or CNC lathe.
Once installed, the direct-drive motor spins the disc at a continuous 2,500 RPM during your cycle. As coolant hits the spinning surface, centrifugal force instantly flings it outward. The result? The window stays perfectly clear. You stop opening the door mid-cycle, you stop getting coolant on the floor, and you stop guessing whether your tool is wearing out or your part is still in spec.
See It In Action
These clips went viral in the machining community. Watch CoolantClear™ handle real-world coolant conditions.
CoolantClear™ vs. Rotoclear S3
When comparing CoolantClear™ to the industry-standard Rotoclear S3 spinning window, the differences in accessibility and value become immediately apparent.
Why Optical Process Monitoring Matters
Investing in a CNC spin window is not just about convenience; it is a critical component of optical process monitoring and machine tool crash prevention. When operators cannot see the workpiece, they rely on sound. But running a machine “by ear” is a dangerous game that leads to crashed spindles, scrapped parts, and unplanned downtime.
A clear view into the machine through a self-cleaning spinning window allows operators to:
- Prevent Crashes: Detect irregularities, incorrect zero-points, or wrong tool choices before they cause catastrophic damage to the spindle or workpiece.
- Speed Up Setup: Continuous visual monitoring makes initial setups faster and safer without constantly opening the doors and interrupting the program.
- Reduce Scrap: Watch the first part in a new run and verify dimensions visually before committing to a full production batch.
- Optimize Machining: Visually verify chip evacuation, coolant nozzle placement, and tool wear in real-time instead of guessing.
LAUNCH PRICE
$1,997
MSRP: $2,379 — You save $382
$1,253 less than a Rotoclear quote. Ships immediately.
No quote. No distributor. No waiting. Buy and it ships.
Stop Guessing. Start Seeing.
The days of the $3,000+ spinning window are over. CoolantClear™ delivers the exact same centrifugal force clearing technology, a faster rotation speed (2,500 RPM), and a simpler installation process — all for $1,997.
There are no quotes, no distributors, and no waiting. You buy it from GimbelAutomation.com, and it ships immediately.
If you are tired of looking at a brown wall of coolant and want to bring true visibility back to your shop floor, it is time to upgrade your CNC machine window.
