Seamers and Hand Crimpers
US-9
Featuring changeable roller sets, this universal seamer combines the most popular features of Knudson’s top-selling seamer models. This flexible machine can create single or double-lock standing seams with a single pass. Includes ½ and ¾” head widths and 1", 1 ½", 2" and 2 ½" leg heights.
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S-18A
The S-18A Seamer forms a 90˚ (Single Lock) seam on panels with 2” or 2 ½” leg heights and a ¾” head width. The S-18A compliments the Knudson KR-18B roofing machine.
S-16A
The S-16A Seamer forms a 90˚ (Single Lock) seam on panels with a 3” leg height and a 1” head width. The S-16A compliments the Knudson KR-16 roofing machine.
HLS-100 1” Hand Crimper
Designed for 1” head roofing panels, the HLS-100 initiates a 90° crimp prior to seaming. Works with single-lock seamers.
HLS-075 3/4” Hand Crimper
Designed for ¾” head roofing panels, the HLS-075 initiates a 90° crimp prior to seaming. Works with both single- and double-lock seamers.
HLS-050 1/2” Hand Crimper
Designed for ½” head roofing panels, the HLS-050 initiates a 90° crimp prior to seaming. Works with both single- and double-lock seamers.

