RAFAMET KM 4 mechanical folding machine

RAFAMET KM 4 mechanical folding machine manufactured in Poland in 1990 is designed for producing bent sections from metal sheets with a maximum thickness of 4 mm, made by consecutive folding along the length of the workpiece strip. The highly reliable machine also allows for shaping sheet metal boxes, winding sheet metal edges and making wrapped and crimped connections after installation of special equipment.

The folding machine is equipped with a control panel, back stop, workspace illumination and pedal for foot control. The machine has the same design and appearance as its twin folding machine OZAMECH KM 4. The total weight of the machine is 3750 kg.

Technical parameters of the RAFAMET KM 4 folding machine

• working width of the bending slats: 2000 mm
• maximum workpiece length: 1500 mm
• maximum workpiece thickness: 4 mm
• smallest length of crimped sheet metal strip between top and bottom beams: 60 mm
• longest length of the bendable sheet metal strip: 500 mm
• smallest internal bending radius: 6 mm
• smallest crimp width: 20 mm
• smallest bending distance from the edge of the bent sheet metal: 25 mm
• lifting range of top beam (from bending beam pivot axis): 200 mm
• lowering range of bottom beam (from bending beam axis): 60 mm
• bending beam adjustment range: 60 mm
• bending beam rotation range (normal): 0-135°
• bending beam rotation range (extended): 0-155°
• bending beam angular speed: 27,6 °/s
• lifting and lowering speed of the top beam: 4.4 mm/s
• maximum adjusting length of bumper feeding device: 1000 mm
• minimum adjusting length of bumper feeding device: 350 mm
• cycle time when bending the sheet metal at right angles: 10 s
• top beam drive motor power: 1.5 kW
• top beam drive motor speed: 1420 rpm
• bending beam drive motor power: 4 kW
• bending beam drive motor speed: 1420 rpm
• dimensions (L x W x H): 3500 x 900 x 1520 mm
• weight of machine KM 4: 3750 kg

Equipment of the folding machine

• control panel
• back stop
• foot pedal
• workspace illumination
• DTR – Technical and Operating Documentation

The folding machine was upgraded with a new top bending strip worth €700.