Product Description
EVT50C-ALC — 2-Inch Aluminum Truss Clamp – 48–51mm Wrap-Around O-Clamp
The EVT50C-ALC Aluminum Truss Clamp is a TÜV Rheinland certified wrap-around clamp for 48–51mm (2-inch OD) truss tubing — a lightweight, high-strength fixture attachment point rated at 100 kg safe working load and 4.9 kN tensile strength, priced for the high-quantity deployments where cost per clamp is as relevant as the load rating. The 6061-T6 aluminum body keeps each clamp at 0.156 kg — light enough that stacking hundreds across a full festival rig doesn't add meaningful load to a truss system already carrying heavy fixtures — while the M10 × 30mm bolt with spring lock washer and wing nut closure delivers consistent clamping force on every tube in the range without tools. Compatible with F31, F32, F33, F34, DT44P, EVT290S, and all 290mm square truss systems using 48–51mm tubing, the EVT50C-ALC is the single clamp SKU that covers the majority of a mixed rental inventory — the one that touring lighting technicians stock for the full run of shows, that regional theaters keep in quantity so worn clamps get replaced without a budget conversation, that architectural lighting designers specify for permanent hospitality installations, and that AV rental houses purchase by the case because the tube diameter, load rating, and system compatibility all line up with what's already on the truck.
Function & Application:
The EVT50C-ALC is a wrap-around collar clamp — not a half-coupler, not a quick-release mechanism. The collar opens, positions around the truss tube or pipe, and closes through an M10 bolt and spring lock washer tightened by a wing nut that engages without a wrench. The spring lock washer maintains bolt tension under vibration, preventing the clamp from self-loosening during operation or transport. The 30 kg maximum shear load and 100 kg SWL ratings are independently verified by TÜV Rheinland — not self-certified. The silver anodized finish on the 6061-T6 aluminum body resists surface corrosion from humidity and stage-chemical exposure under normal use. The clamp fits the full 48–51mm tube diameter range, accommodating both nominal 2-inch pipe (48.3mm OD) and the 50mm OD tubing standard across F34 and 290mm conical truss systems without a separate SKU for each tube diameter.
Key Features
- TÜV Rheinland Certification: Independently tested and certified at 100 kg SWL and 4.9 kN tensile strength — load ratings verified by a third-party certification body, not manufacturer self-certification.
- 6061-T6 Aluminum Body: Lightweight at 0.156 kg per clamp — the aluminum construction keeps hardware weight negligible on high-clamp-count rigs where total hardware load is a factor in the load calculation.
- 48–51mm Universal Tube Fit: Accommodates both nominal 2-inch pipe (48.3mm OD) and 50mm OD F34/290mm truss tubing — one SKU covers the full tube diameter range without separate clamp models.
- M10 Spring Lock Bolt & Wing Nut: M10 × 30mm bolt with spring lock washer tightened by wing nut — tool-free engagement that maintains clamping force under vibration and repeated thermal cycling.
- 30 kg Max Shear Load: Rated at 30 kg maximum shear load for side-loaded fixture attachments — verified alongside the tensile rating in TÜV testing.
- Multi-System Compatibility: Fits F31, F32, F33, F34, DT44P, EVT290S, and all 290mm square truss systems using 48–51mm tubing — a single SKU across the majority of professional truss systems in circulation.
- Silver Anodized Finish: Anodized aluminum surface resists surface corrosion and blends with standard silver truss systems.
- MINI 360 Equivalent: Matches the specifications of the widely used MINI 360 clamp — a direct replacement option for existing inventory.
Who It's For
- Concert & Festival Lighting Technicians — You're deploying hundreds of clamps across a full festival rig — PA hangs, lighting positions, cable management, and utility attachment points — and the cost per clamp compounds quickly at that quantity. The EVT50C-ALC gives you a TÜV Rheinland certified 100 kg SWL clamp at a price point that supports the volume a full production run demands, without sacrificing the certification and load rating the department head requires before anything goes overhead. The 6061-T6 aluminum body keeps each clamp light enough that a full case added to the rig doesn't shift the load calculation at any individual pick point, and the wing nut closes consistently across every tube in the 48–51mm range from the first show to the last date on the routing.
- Theater & Performing Arts Technical Directors — Your regional theater, community playhouse, or university performing arts program hangs and re-hangs fixtures constantly as shows rotate through the season, and clamps absorb that abuse — they get dropped on concrete loading docks, overtightened by volunteers, and left clamped to hot steel pipes in a dark grid for months at a time. At this price point, replacing a clamp that's been dropped or has developed visible wear is a supply closet decision, not a budget committee conversation. Keeping the inventory in safe working condition means having certified replacements available without the financial pressure of premium hardware — and the TÜV Rheinland certification means the replacement meets the same documented load standard as the original.
- Architectural & Permanent Installation Lighting Designers — You're specifying truss-mounted fixtures in hotel ballrooms, restaurant dining rooms, retail flagships, and hospitality venues where the clamp installs once and stays in place for years. A clamp in a permanent ceiling grid has to hold its position and load across years of HVAC cycling, the low-level vibration that floor foot traffic transmits through the ceiling plane, and the occasional relamping or repositioning by a facility maintenance team that may not have a rigger on staff. The 6061-T6 aluminum body resists humidity-driven corrosion in the ceiling cavity, and the spring lock washer maintains bolt tension between service intervals — keeping the fixture stationary and the connection secure without requiring regular re-torquing.
- Corporate AV Rental & Event Production Companies — Your rental house stocks clamps by the case, and the truss inventory on your floor runs multiple systems — F33, F34, DT44P, EVT290S, and probably a few others accumulated across years of purchasing. A single clamp SKU that fits the 48–51mm tube range covers the majority of what you own without maintaining separate clamp inventories by truss model or tracking which clamp goes with which system when it comes off the truck. The aluminum body reduces the per-position hardware weight on runs where the total weight of clamps, safety cables, and accessory hardware adds up across dozens of clamped positions — and the TÜV certification clears the load rating question before it gets to the production manager's desk.
- Structural & Rigging Engineers — The EVT50C-ALC is a 6061-T6 aluminum wrap-around clamp rated at 100 kg SWL and 4.9 kN tensile strength with a 30 kg maximum shear load, independently certified by TÜV Rheinland, weighing 0.156 kg, with an M10 × 30mm spring lock bolt and wing nut closure for 48–51mm tubing. It appears on an engineered drawing as a standard cataloged clamp component. Secondary safety cables are required for all overhead fixture suspensions above occupied areas. All overhead truss installations require review by a licensed professional engineer.
Designed by Evolve Truss, the EVT50C-ALC is the TÜV-certified aluminum clamp built for volume — 100 kg of rated load capacity, 0.156 kg of hardware weight, and a single tube-diameter range that fits the systems already in the inventory.
⚠️ Safety Notice
❗ Critical Rigging Information:
- Do not exceed the 100 kg safe working load or 30 kg maximum shear load. Remove and label any clamp as DO NOT USE if it shows visible damage, deformation, cracking, or stripped threads.
- Ensure the M10 bolt, spring lock washer, and wing nut are fully engaged and tightened before attaching any equipment or load.
- Always use a secondary safety cable when suspending fixtures or equipment above people.
- Inspect clamps before every use — drops and impacts can compromise clamping strength without visible surface damage.
- Installations should be completed by trained rigging professionals only.
- A licensed structural engineer must review any weight-bearing or overhead truss system.
⚠️ CAD Resources Available
STEP & DWG Files Available: Engineers, designers, and project managers can request these files for seamless integration into rigging plans and stage design layouts.
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Experience the Truss Genius Difference
Trusted by staging professionals nationwide, Truss Genius delivers certified components, expert guidance, and a seamless purchasing experience.
Contact us today to stock your next production with the EVT50C-ALC Aluminum Truss Clamp.

