The KUPO C-06 Heavy Duty Iron Casting Clamp is a classic theatre C clamp for hanging luminaires on 38 to 51 mm outside diameter pipe. It uses a 2-1/2" steel shaft, 1/2-13 yoke bolt with washer, and square-head pan set screw for fixture rotation after attachment.
Why It Matters
This is the familiar workhorse clamp for conventional stage hanging, but it still needs disciplined use. The iron casting body and 100 kg working load limit suit many theatre fixtures, while the pan set screw lets the fixture be positioned without treating the pipe bolt like a steering control.
Key Features
100 kg working load limit supports common theatre luminaires within the rated clamp and pipe system
Square-head pan set screw allows fixture rotation for aiming after the clamp is attached
2-1/2" steel shaft with 1/2-13 yoke bolt and washer suits standard yoke mounting workflows
Black powder coat finish keeps the clamp visually quiet above a stage or grid
Additional Technical Notes
Tube Fit: 38 to 51 mm outside diameter, 1-1/2" to 2" tube
Applications
Use it for theatre battens, studio pipes, and fixed lighting positions where a conventional luminaire needs a robust C clamp on 38 to 51 mm pipe.
Compatibility
Fits 38 to 51 mm outside diameter pipe, listed as 1-1/2" to 2" tube. Do not over-tighten the pipe bolt, since the instructions warn that excessive tightening can damage the batten.
Frequently Asked Questions
How tight should the pipe bolt be?
The instructions warn against over-tightening. Finger tight plus a half turn with a wrench is the stated guidance, because excessive force can dimple or damage the batten.
What is the difference between C-06 and C-06T?
C-06T is the Titan version with a wider 38 to 65 mm tube range and a longer 3-1/2" shaft. C-06 is the standard 38 to 51 mm model.
Can the fixture be panned after it is hung?
Yes. The square-head pan set screw is there so the fixture can rotate for positioning while the clamp remains properly seated on the pipe.
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