Self-cleaning CNC windows & cameras
How do you see inside a CNC machine with coolant running?
Fit a self-cleaning spinning window: a rotating glass disc that flings coolant and chips off by centrifugal force, so the view stays clear for the whole cut. To watch from inside the enclosure, right at the tool or on a screen away from the machine, add a Rotoclear camera system, whose camera heads sit behind spinning glass windows of their own.
Spinning window or camera system?
Both keep a clear view through coolant and chips. The difference is where you watch from.
Rotoclear S3 spinning window
Best when operators watch the cut through the machine door.
The S3 replaces or mounts over the viewing glass. You see the process directly, through glass that clears itself while the machine runs.
Rotoclear S3 →Rotoclear C-line camera systems
Best when you need a view the door can't give you.
Camera heads mount inside the enclosure, right at the tool or looking down from above, behind spinning glass windows that keep coolant and chips off the lens. The C Basic gives a live 4K image over HDMI, the C2 adds a second head and network streaming, and the C Pro adds automatic recording of every job.
Rotoclear C-line cameras →You don't have to pick one forever: the S3 shares its mounting and control architecture with the C2 camera system, so a spinning window can grow into a full internal camera view later.
Available in the USA and Canada from All CNC Service & Sales, Rotoclear's exclusive distributor for the USA and Canada.
What is a spinning window?
A spinning window replaces, or mounts over, a machine's standard viewing glass with a rotating disc. The rotation throws off coolant, oil mist and chips by centrifugal force, keeping the surface clear while the machine runs. Sealing air recommended. We connect it on every standard install. It's an always-on solution: once it's spinning, the window stays clear for the life of the cut.
How it keeps the view clear
A sealed motor spins an optical-grade disc at speed. Centrifugal force throws liquid and debris outward before it can settle on the surface, so the operator — or a mounted camera — keeps a continuous, unobstructed view of the work zone through coolant spray and flying chips.
Can you retrofit one onto your machine?
Most enclosed CNC machines can take a retrofit spinning window — bonded directly to the existing glass or mounted through a screw-on frame, depending on the machine. See the full install walkthrough for what that looks like in practice, or configure your system and we'll confirm fit for your exact machine.
See the install guide →In stock, shipped from the USA
We stock complete Rotoclear systems and the full spare-parts catalog in the USA — order today, we ship today. No waiting on an overseas backorder to get a clear view back.
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Seeing inside the machine: FAQ
Can you see inside a CNC machine while coolant is running?
Yes. A self-cleaning spinning window throws coolant, oil mist and chips off the glass by centrifugal force, so the view stays clear for the whole cut instead of fogging over.
Do I need a spinning window or a camera?
If operators watch through the door, a spinning window such as the Rotoclear S3 is the direct answer. If you need a view the door can't give, such as right at the tool, from above, recorded, or on a screen elsewhere, choose a Rotoclear camera system.
Can a spinning window be retrofitted to an existing machine?
Most enclosed CNC machines can take one, either bonded to the existing glass or mounted in a screw-on frame, depending on the machine. We confirm fit for your exact machine before you order.
Where can I buy Rotoclear in the USA or Canada?
From All CNC Service & Sales, Rotoclear's exclusive distributor for the USA and Canada. We sell, install and support the full Rotoclear line.
More Rotoclear guides
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Configure your system with pictures at every step — your quote arrives by email.