The ULAMEX “Click” middle clamp is a rapid-assembly solar panel mid clamp designed to cut installation time by up to forty percent compared to conventional bolt-on clamps. Featuring an integrated spring mechanism, this tool-free snap-in clamp secures adjacent photovoltaic modules with a single downward press — no wrench, no torque setting, no loose hardware. The adjustable design covers panel frame thicknesses from 30 to 40 mm, making it a universal solution for the most common module dimensions on the market today. Manufactured from EN AW-6060 T6 anodized aluminum for frame protection and vibration damping, the Click middle clamp combines professional-grade holding force with the speed that large-scale solar projects demand. Available in silver and black anodized finishes.
Technical Specifications
| Parameter | Value |
|---|---|
| Material | Aluminum EN AW-6060 T6, anodized |
| Adjustable range | 30–40 mm (covers 30, 32, 35, 37, 40 mm frames) |
| Finish options | Silver anodized (natural) / Black anodized |
| Fastening mechanism | Integrated spring — tool-free snap-in |
| Pre-assembly | Slides into T-slot rail, clicks onto module frame |
| Clamp type | Middle clamp (inter-module), rapid assembly |
| Rail compatibility | Standard T-slot PV profiles (40×40 mm, 45×40 mm) |
| Corrosion protection | Anodized aluminum |
| Operating temperature | −40 °C to +85 °C |
| Standards | Eurocode wind/snow load compatible, CE |
How It Works — Tool-Free Installation
The Click clamp installation process eliminates the torque wrench entirely. First, slide the clamp base into the T-slot channel of your PV mounting rail and position it at the junction between two adjacent modules. Then, press the clamp body downward until the integrated spring engages with an audible click — confirming secure grip on both panel frames. The spring mechanism applies a controlled, repeatable clamping force that falls within the manufacturer-specified range for standard PV module frames. This eliminates the risk of over-tightening or under-tightening that can occur with manual bolt assemblies, particularly when large installation crews work across hundreds of modules in a single day. To release or reposition the clamp, simply lift the spring tab with a flat-head screwdriver.
Compatible Components
The Click middle clamp integrates with the standard ULAMEX photovoltaic mounting ecosystem. Use it on aluminum PV profiles (40×40 mm and 45×40 mm cross-sections), alongside Click end clamps at the array boundaries. For the roof attachment layer, pair with roof hooks on pitched roofs, or with ballast trays and PV triangles for non-penetrating flat roof systems. Standard PV fasteners complete the assembly for any remaining bolt-on connections in the system.
Application Scenarios
Large-scale commercial rooftops: The Click clamp’s tool-free installation makes it ideal for commercial projects where hundreds or thousands of modules must be mounted quickly. Warehouses, logistics centres and retail buildings benefit from dramatically reduced labour hours — a crew of two installers can mount modules at approximately twice the speed compared to conventional bolt-on clamps.
Residential pitched roofs: For smaller residential installations where simplicity and speed matter, the Click middle clamp eliminates the need for a torque wrench entirely. The consistent spring force removes human error from the tightening process, ensuring every clamp applies the correct pressure to the module frame.
Flat roof ballast systems: Combined with ballast mounting trays, Click clamps accelerate flat roof installations on , TPO and PVC membranes. The rapid-assembly approach is especially valuable on flat roofs where working conditions are exposed and minimizing on-roof time reduces safety risks.
Time-critical projects: Solar installations with tight commissioning deadlines or seasonal weather windows benefit directly from the faster mounting speed. The Click system reduces the clamp installation step from the critical path of the overall project schedule.
Sizing Guide — Universal 30–40 mm Range
Unlike fixed-size conventional clamps that require exact matching to the panel frame height, the Click middle clamp is adjustable across the 30 to 40 mm range. This covers the vast majority of current PV module frame thicknesses — including the common 30, 32, 35, 37 and 40 mm dimensions. For modules with frame heights above 40 mm (such as certain 45 mm or 50 mm frames), use standard bolt-on middle clamps in the corresponding fixed size. When planning a project with mixed module types, the Click clamp’s adjustable range often eliminates the need to stock multiple clamp sizes on site, simplifying logistics and reducing waste.
Standards and Certifications
ULAMEX Click middle clamps are manufactured from EN AW-6060 T6 aluminum conforming to European material standards. The integrated spring mechanism is engineered to deliver a clamping force consistent with the requirements of Eurocode EN 1991 wind and snow load calculations for standard PV installations. ULAMEX operates under EN 1090 certification for execution of aluminum structures. All Click clamps undergo quality control testing for spring force consistency, dimensional accuracy and clamping performance before shipment.
Why Choose ULAMEX
ULAMEX supplies Click clamps at B2B wholesale volumes with pallet delivery across Europe. As a one-stop supplier for the complete PV mounting system — profiles, clamps, fasteners, roof hooks, ballast trays and triangles — we simplify procurement and ensure component compatibility. Over thirty-five years in the metals trade give us the supply chain depth to deliver reliably, even for large-volume orders with short lead times. Contact us for pricing and availability.
Frequently Asked Questions
How does the Click clamp compare to a standard bolt-on clamp in holding force?
The integrated spring mechanism of the Click clamp applies a controlled clamping force within the same performance range as a properly torqued M8 bolt-on clamp (12–14 Nm). The advantage is consistency — every Click clamp applies the same force, eliminating the variability that occurs when different installers use torque wrenches with varying calibration or technique.
Can the Click clamp be removed and repositioned after installation?
Yes. To release the Click clamp, lift the spring retention tab with a flat-head screwdriver. The clamp can then be slid along the rail to a new position and re-engaged. This makes the Click system practical for array adjustments and maintenance access, for instance when a module needs to be replaced or repositioned.
Is the Click clamp suitable for high-wind zones?
The Click clamp is designed for standard wind load conditions as calculated under Eurocode EN 1991. For installations in high-wind zones (coastal areas, exposed hilltops, tall buildings), consult a structural engineer to verify that the spring clamping force meets the specific site requirements. In some high-wind applications, conventional bolt-on clamps with verified torque may be preferred.
What panel frame sizes does the Click middle clamp cover?
The Click middle clamp adjusts to fit panel frame thicknesses from 30 to 40 mm, which covers the most common modules on the market including frames of 30, 32, 35, 37 and 40 mm. For frames thicker than 40 mm, use standard fixed-size bolt-on clamps from the ULAMEX range.