Large Tube Clamps (Mammoth)
Large tube clamps are heavy-duty fittings designed for oversized scaffold tube and truss sections, providing the strength needed where standard pipe clamps aren't rated for the load.
MTN Shop stocks the Doughty Mammoth range for structural rigging applications in theatre, event and TV studio builds involving higher working loads and larger tube diameters. If your project needs tube diameters beyond our standard pipe clamps, the Mammoth series is built specifically for major structural connections at 60-63mm, with WLL ratings up to 500kg depending on the specific fitting.
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Mammoth Half Couplers
The Doughty Half Coupler: 60mm Mammoth Clamp, TÜV certified and rated to 500kg WLL, joins Mammoth tube to a fixed structural point. The Slimline version reduces WLL to 300kg in exchange for a smaller footprint, useful where clearance around the fitting is limited.
Mammoth Swivel Couplers
Where two Mammoth tubes need to connect at a variable angle, the Swivel Coupling (60mm Mammoth Clamp), rated to 500kg WLL, allows rotation before locking in position. The Slimline Swivel Coupler covers the same function at 300kg WLL in a lighter design.
Mammoth Hook and Eye Clamps
The 63mm Mammoth Hook Clamp (500kg WLL) hangs fixtures from Mammoth tube with the speed of a standard hook clamp, and the All Weather Mammoth Hook Clamp is built for outdoor and touring rigs exposed to the elements. Where a fixed attachment point for a safety bond is needed instead of an open hook, the 60mm Mammoth Hanging Clamp (340kg WLL) provides an eye fitting.
Mammoth Parallel and 90 Degree Couplers
The Parallel Coupler (60mm Mammoth Clamp) joins two Mammoth tubes running side by side, both rated to 500kg WLL. The 90 Degree Fixed Coupler, also 500kg WLL, is available for 60-63mm tube alone, or a mixed 48-51mm and 60-63mm combination where Mammoth and standard truss need to meet at a right angle.
Mammoth Clamp with Half Connector
The Mammoth Clamp with Half Connector, rated to 100kg WLL, combines a Mammoth tube clamp and a half connector fitting in one part for lighter fixture mounting.
Warranty and Load Ratings
All Mammoth clamps and couplers sold by MTN Shop EU are genuine Doughty stock, sourced through official distribution, so full manufacturer warranty applies as it would from the brand directly. WLL varies by fitting, from 100kg on the clamp with half connector up to 500kg on the standard half coupler, hook clamp, swivel coupler and parallel coupler, so always confirm the specific model's rating.
Choosing the Right Mammoth Fitting
Confirm your tube is actually 60-63mm before ordering Mammoth fittings, since they are not interchangeable with standard 48-51mm truss and scaffold tube. Where a run needs to transition between Mammoth and standard tube sizes, the mixed-size 90 Degree Fixed Coupler avoids needing a separate adapter piece.
Need help specifying Mammoth clamps for a build? Contact our team for advice, or request a trade quote for bulk orders. Browse our full Half Couplers, Hook Clamps, Girder Clamps and Quick Trigger Clamps collections.
