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Silver metal half-coupler with 28mm spigot and wing nut clamp

Kupo

Kupo Half-Coupler with 28mm Spigot studio

SKU CH-2XJB-8WEGH

Aluminium and steel half-coupler clamps 48–51 mm tubes and holds 200 kg via a 28 mm spigot

  • Secure mounting with 440 lb load capacity
  • Fits 48 mm to 51 mm tube diameters
  • 28 mm spigot enables versatile positioning
  • High-tensile aluminium extrusion for durability
  • Lightweight at 33.15 oz for easy transport

Kupo Half-Coupler with 28mm Spigot

This half-coupler is a high-tensile aluminium extrusion clamp designed for professional lighting, audio and video rigs. It attaches securely to tubes between 48mm and 51mm in diameter and provides a 28mm spigot for mounting equipment. The unit weighs 33.15 oz and is rated for loads up to 440 lbs (200kg).

Who this suits and who should look elsewhere

It suits technicians who need a lightweight yet strong clamp for heavy fixtures on standard 48mm to 51mm truss or pipe. Buyers working with smaller diameter tubes or requiring a different spigot size cannot use this model. Those needing a swivel or rotating coupler should consider other designs.

Deciding specification — tube diameter range

The coupler fits tubes from 48mm to 51mm only. Verify your truss or pipe diameter before purchase; the clamp will not secure properly outside this range. The 440 lb load rating applies when mounted within the specified tube sizes.

How it compares

Measured against everything we stock in Photo Lighting & Studio Flashes, at today’s prices. Recalculated every night.

Price $39.99
Cheaper than about 67% of the 3,696 comparable items (median $57.99).

Specifications

No published specifications for this item yet.

Questions about this item

What tube diameter range does the half-coupler clamp onto?

It fits tubes from 48 mm to 51 mm in diameter, covering standard truss and pipe sizes used in studio rigging.

How is the coupler tightened onto the tube, and what step is often missed?

Turn the T-handle bolt until the jaws grip the tube firmly, then give a final quarter-turn with a wrench; skipping that last snug turn lets the clamp shift under load.

When should the 28 mm spigot or the clamp bolt be replaced?

Replace the spigot if the 28 mm pin shows visible wear, deformation or cracks, and replace the bolt if threads strip or the T-handle no longer locks securely.

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