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 Model 20
Machine Capacity: 20-26 Gauge 
Depth of Pocket: Uses approximately 1" of material  5/16". Width of hammer-over edge adjustable up to 3/8"
Speed:25 feet per minute

Pittsburgh Lock Model 20 Super Speed
Machine Capacity: 20-26 Gauge 
Depth of Pocket: 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.

Note: Model 20 Super Speed is not available with the optional flanging attachment.