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Gusmer H-20/35 Spray Foam Proportioner

The Gusmer H-20/35 Spray Foam Proportioner is a hydraulically driven, high-pressure plural-component system offering precise ratio control, independent heating, and multiple output configurations for professional spray foam and polyurea applications.

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Description

The Gusmer H-20/35 Spray Foam Proportioner is a hydraulically driven, high-pressure plural-component machine engineered for consistent processing of polyurethane foams, polyureas, and select epoxy systems. Designed for professional contractors, the Gusmer H-20/35 Spray Foam Proportioner delivers precise ratio control with rugged reliability in demanding jobsite environments. This unit features independent primary heaters for A and R components, each rated at 6,000 watts, combined with a digitally controlled heated hose system supporting up to 310 feet of hose. The Gusmer H-20/35 Spray Foam Proportioner supports multiple output configurations—H-20, H-25, and H-35—allowing contractors to match pressure and output to specific applications. Built around a heavy-duty hydraulic drive system with over-pressure protection, the Gusmer H-20/35 Spray Foam Proportioner ensures stable pressures up to 3,500 psi depending on configuration. Integrated safety interlocks, cycle counters, and temperature controllers make the system both powerful and operator-friendly.
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Spray Foam Machine Info & Resources

Technical Specifications

  • Chemical viscosity handling range: 250–1500 cps
  • Maximum material supply pressure: 400 psi (27 bar)
  • Hydraulic reservoir capacity: 34 gallons (129 liters)
  • Inlet filter: 80-mesh standard (60/40 optional)
  • Resin inlet: 3/4" NPT (FE) / Isocyanate inlet: 1/2" NPT (FE)

Frequently Asked Questions

Service & Support

How does the Gusmer H-20/35 Spray Foam Proportioner prevent isocyanate crystallization during downtime?

The Gusmer H-20/35 Spray Foam Proportioner uses an integrated pump lube circulation system on the isocyanate side and a retract mode that shields the pump shaft from air exposure during shutdowns.

Can the Gusmer H-20/35 Spray Foam Proportioner maintain temperature over long hose lengths in cold conditions?

The Gusmer H-20/35 Spray Foam Proportioner maintains hose temperature through transformer tap-adjustable hose heat, but extremely cold conditions or maximum hose length may require reduced flow or auxiliary heat.

What happens if pressure exceeds safe operating limits during spraying?

The Gusmer H-20/35 Spray Foam Proportioner automatically shuts down hydraulic drive via over-pressure safety switches, preventing equipment damage and restoring operation once pressure normalizes.
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