Model: SB-90 Harper Spin-In Collar Machine
The Harper SB-90 Spin-In Collar machine uses a unique
sliding roll design to form a deep draw, 3/8" inch deep,
spin-in pocket on a round collar. Spin-in collars are still
the surest and quickest way to connect round pipe to
rectangular duct and the Harper Spin-In Collar machine
produces this pocket with a one-step operation.
Capacity: 22-30GA Galvanized
Diameter Range: 4"-20"
Gear Motor: 1/2HP 115V/1PH
Made in the USA!!
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