The KUPO KCP-831B Half Coupler is a black coupler for 48 to 51 mm tube. It uses a 50 mm standard body, high tensile 6061 aluminum extrusion, captive hardware, and a 500 kg Working Load Limit for professional truss and pipe rigging.
Why It Matters
The standard half coupler is the workhorse high-load tube clamp. It gives riggers a compact 500 kg rated connection point with captive hardware that behaves predictably overhead.
Key Features
500 kg Working Load Limit supports professional fixture, truss, and pipe-mounted hardware within spec
50 mm standard depth balances tube space and load requirement
Captive hardware helps prevent loose nuts from falling during overhead installation
48 to 51 mm tube fit matches common 2" stage pipe and truss tube
Black finish suits low-visibility stage and broadcast rigs
Additional Technical Notes
Dimensions: 39 mm x 73.5 mm x 50 mm, slot 10.5 mm, length 50 mm
Applications
Use it for truss-mounted fixtures, pipe-grid hardware, rental inventories, touring rigs, studios, theaters, and any 48 to 51 mm tube position that needs a rated half coupler.
Compatibility
Fits 48 to 51 mm tube. Slim versions save tube width; standard KCP-831 versions provide the 500 kg half coupler body; T-handle versions support tool-free tightening.
Frequently Asked Questions
What is the captive feature for?
The captive feature helps keep the nut or fastener attached during overhead work, reducing the chance of dropped hardware during installation.
What tube size does it fit?
It is specified for 48 to 51 mm tube, which covers common 2" stage pipe and truss tube.
Should I choose slim or standard width?
Choose slim for crowded tube space. Choose the standard KCP-831 family when the job calls for the 500 kg rating and the wider body is acceptable.
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