Wuko 0412 Sheet Metal Lok'n'Bak Standing Seam Seamer

The WUKO 0412 Sheet Metal Lok'n'Bak Standing Seam Seamer is a professional, self-propelled electric seaming machine designed to close single-lock and double-lock standing seams in a single pass. Weighing just 30 lbs, this compact seamer combines automatic operation, adjustable seaming pressure, and powered reverse travel to improve efficiency when installing standing seam metal roofing systems.

The WUKO 0412 Lok'n'Bak features a powerful 8-amp motor with two working speeds of 23 and 40 ft/min. Integrated sensors automatically stop the machine at the end of the seam. Once the seam is completed, operators can select reverse mode and open the front lever, allowing the machine to travel back toward the starting position without manually carrying it along the finished seam.

Designed for standing seam heights from 1" to 1-1/2", the Lok'n'Bak features adjustable guide wheels and continuously variable seaming pressure to accommodate different panel profiles and materials. Two interchangeable counter rollers are included for the final forming station, allowing operators to select the appropriate roller for softer materials such as aluminum and copper or harder sheet metals. The machine also supports curved standing seam panels, including convex radii down to 32" and concave radii down to 48". A protective plywood carrying case is included for convenient transport and storage.

Features & Benefits

• Single-Pass Standing Seam Closure: Closes single-lock and double-lock standing seams in one continuous operation.
• Lightweight Design: Weighs only 30 lbs for easier handling, positioning, and transportation on roofing projects.
• Self-Propelled Operation: Automatically travels along the standing seam, reducing manual effort during installation.
• Automatic End-of-Seam Stop: Integrated sensors stop the machine when it reaches the end of the roof panel seam.
• Powered Reverse Travel: Return the machine toward the beginning of the seam by selecting reverse mode and opening the front lever.
• Two Operating Speeds: Select between 23 ft/min and 40 ft/min to match material requirements and working conditions.
• Adjustable Seam Height: Accommodates standing seam heights from 1" to 1-1/2" through adjustment of the guide wheels.
• Continuously Adjustable Seaming Pressure: Allows operators to fine-tune forming pressure for different sheet metal materials.
• Interchangeable Counter Rollers: Includes two easily replaceable counter rollers for the final forming station, designed for softer and harder sheet metals.
• Curved Panel Compatibility: Supports convex curved panels with radii down to 32" and concave curved panels with radii down to 48".
• Powerful Electric Motor: An 8-amp motor provides dependable operation for professional metal roofing installations.
• Compact Design: Accommodates installations with a minimum seam-to-seam distance of 4".
• Versatile Material Compatibility: Suitable for steel, aluminum, copper, zinc, and stainless steel within the manufacturer's rated capacities.
• Improved Jobsite Efficiency: Automatic seaming, end-of-panel stopping, and powered return simplify repetitive roofing applications.
• Carrying Case Included: Durable plywood case provides protection during transportation and storage.

Technical Specifications

• Machine Type: Self-propelled electric standing seam seamer
• Seaming Applications: Single-lock and double-lock standing seams
• Seaming Operation: Single-pass closure
• Standing Seam Height: 1"–1-1/2" (25–38 mm)
• Working Speeds: 23 or 40 ft/min
• Motor Current: 8 amps
• Machine Weight: 30 lbs
• Maximum Steel Thickness: 0.024" (24 ga)
• Maximum Aluminum Thickness: 0.032" (20 ga)
• Maximum Copper Thickness: 0.032" (20 ga)
• Maximum Zinc Thickness: 0.032" (20 ga)
• Maximum Stainless Steel Thickness: 0.019" (26 ga)
• Minimum Seam-to-Seam Distance: 4"
• Minimum Convex Curving Radius: 32"
• Minimum Concave Curving Radius: 48"
• Seaming Pressure: Continuously adjustable
• Counter Rollers: Two interchangeable rollers for softer and harder materials
• Travel Direction: Forward and reverse
• Automatic Stop: Integrated end-of-seam sensors
• Included Storage: Plywood carrying case

What's Included

• WUKO 0412 Lok'n'Bak Standing Seam Seamer: Self-propelled electric seaming machine with adjustable guide wheels, automatic stopping sensors, and powered reverse operation.
• Interchangeable Counter Rollers: Two rollers designed for the final forming station, allowing adjustment for softer and harder sheet metal materials.
• Plywood Carrying Case: Heavy-duty protective case for transportation and storage.