Skip to product information
1 of 2

Product Description

Overview

The KUPO KCP-801 Arm Coupler is a polished 250 mm side-arm coupler with a firmly welded 48 mm aluminum alloy tube. It clamps 48 to 51 mm tube and creates a controlled offset point for lighting fixtures, giving riggers a short side-arm position with minimal offset while keeping the arm length and Working Load Limit clearly defined.

Why It Matters

Offsetting a fixture from a truss or pipe should be planned, not improvised with loose parts. This arm coupler gives the crew a fixed welded extension, known clamp range, and a length-specific load rating, so side-arm positions are easier to repeat and document.

Key Features

  • 250 mm welded arm creates a defined fixture offset from the parent tube
  • 80 kg Working Load Limit is matched to the arm length for safer specification
  • 48 to 51 mm clamp range fits standard 2" truss tube and stage pipe
  • 48 mm welded aluminum alloy tube gives a rigid side-arm structure
  • Polished finish suits exposed polished hardware and general rental stock

Applications

Use it for side-arm fixture positions, truss offsets, display lighting, studio grids, theater rigs, and controlled lighting placements where the luminaire must sit away from the main pipe.

Compatibility

Fits 48 to 51 mm tube. The specification note says to avoid using this arm coupler on tubes or pipes in a horizontal orientation; match the rigging orientation and load path before use.

Frequently Asked Questions

Why does the Working Load Limit change with length?

Longer arms create more leverage on the clamp and parent tube. That is why the 250 mm version carries more than the 1000 mm version.

Can I use it on a horizontal pipe?

The specification notes to avoid using these arm couplers on tubes or pipes in a horizontal orientation. Match the intended orientation with the rigging lead.

How should I choose the length?

Use the shortest arm that gives the fixture the clearance it needs. Shorter offsets generally give better load margin and cleaner rig behavior.