Pittsburgh Lock Model 20 and Model 20 Super Speed

In 1937, Lockformer introduced the first truly practical lock forming machine. It significantly cut the time required for making duct and it completely revolutionized the sheet metal working industry.

Pittsburgh Lock Machine Model 20

Capacity: 20-26 Gauge
Depth of Pocket/Size: Uses approximately 1" of material 5/16". Width of hammer-over edge adjustable up to 3/8"
Speed:25 feet per minute
Extended shafts for mounting auxiliary rolls

Pittsburgh Lock Machine Model 20 Super Speed

Capacity: 20-26 Gauge
Depth of Pocket/Size: Uses approximately 1" of material 5/16". Width of hammer-over edge adjustable up to 3/8"
Speed: 75 feet per minute
Extended shafts for mounting auxiliary rolls 75 feet per minute