Overview
The Kupo Steel Clamp (C-12) is a heavy-duty professional C-clamp designed for securely mounting lighting fixtures and rigging equipment onto studio pipes and truss systems in film, television, theatre, and broadcast environments.
Constructed from rolled steel with a protective tab, this clamp delivers high strength and stability for demanding production applications. It is engineered for use with pipe diameters ranging from 40 mm to 60 mm, making it suitable for larger studio batten systems and heavy lighting rigs.
The integrated M12 yoke bolt and nut system allows for secure fixture attachment, while the included tommy bar provides additional leverage for tightening the clamp safely and effectively. A square-head set screw enables controlled rotation of mounted fixtures, improving positioning flexibility on set.
With a safe working load of up to 40 kg, the C-12 is ideal for hanging medium to heavy lighting fixtures such as moving heads, scanners, and studio luminaires.
Key Features
• Heavy-duty rolled steel construction for maximum strength and durability
• Safe working load: 40 kg
• Fits pipe diameters from 40 mm to 60 mm
• Includes M12 x 38 mm bolt and nut for secure fixture mounting
• Tommy bar included for improved tightening leverage
• Square-head set screw allows controlled rotation of fixtures
• Protective tab design reduces wear on mounting surfaces
• Ideal for hanging large lighting fixtures such as moving heads and scanners
• Suitable for studio, theatre, and broadcast rigging applications
• Designed for professional-grade permanent or semi-permanent installations
Specifications
• Model: C-12
• Material: Rolled steel
• Finish: Zinc plated (silver)
• Weight: 0.90 kg
• Safe Working Load: 40 kg
• Pipe Compatibility: 40–60 mm diameter
• Bolt Type: M12 x 38 mm
• Adjustment Tool: Tommy bar included
• Set Screw: Square-head pan set screw
• Application: Lighting fixtures, studio truss, rigging systems
What’s in the Box
• Kupo Steel Clamp (C-12)
• M12 x 38 mm bolt and nut
• Tommy bar tightening tool
• Integrated square-head set screw
Why we stock it
Hand-picked for its build quality, service backup, and on-set reliability. Talk to our team for kit-list recommendations.
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Technical specifications
Detailed specifications available on request.
Need help speccing this?
Our team has rigged, gaffed, and shot with this fixture. Tell us about the production and we'll talk through the modifier set and accessory list.
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Local support, in-house workshop
Every fixture we sell is backed by a 24-month warranty, fully serviced from our Johannesburg workshop. We stock genuine spares and can usually return a unit to service within 5 working days of intake.
Our technical team has run the original manufacturer training courses in South Africa — if you need help configuring DMX, integrating with a CRMX system, or troubleshooting on location, we're a phone call away.
Need it on a job tomorrow?
We hold flagship cinema fixtures in walk-in stock. Order before 11:00 for same-day Johannesburg dispatch — or come collect from our showroom in person.
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