Graco Inc.

S-Style Mixing Head  For filled and unfilled polyurethane applications

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The S-Style High Pressure Mixing Head has proven to be an industry workhorse and often exceeds its standard warranty service life.

The precision S-Style recirculating mixing head utilizes the principles of high-pressure impingement mixing and the patented Gusmer-Decker mechanically self-cleaning mixing chamber.

The injection shot and the recirculation are through the same adjustable, impingement orifice, which reduces pressure, spikes and continuously purges the interior passages of any mixed material.

  • High velocity exit allows mixture stream to fill closed molds, minimizing use of multiple heads to fill molds
  • Available in a range of mixing chamber diameters to accommodate various output requirements
  • Available in a long stroke model for better laminar flow
  • Elastomer seals on mix piston eliminates need to "foam" in head to create seal
  • Ideal for materials such as rigid or flexible urethanes
  • Self-cleaning
  • Flow rates: 12 to 360 lbs/min (5.4 to 163 kg/min)

Carbide option available for applications requiring abrasive fillers

  • Same as L-Style mixing head, but includes carbide inserts on mix piston and orifices for increased mixing head life
  • Designed for filled rigid or flexible urethanes

S-Head
U.S.
Metric
Max Weight
2.25 in. Stroke Models
27 lb
12.25 kg
4 in. Stroke Models
33 lb
14.97 kg
Wetted Parts
Stainless Steel, Trivalent Chromium Plated Carbon Steel, PTFE, Perifluorinated and EPDM O-rings
Stainless Steel, Trivalent Chromium Plated Carbon Steel, PTFE, Perifluorinated and EPDM O-rings
Dimensions
See instruction manual 312752
See instruction manual 312752