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Gusmer GH-4 Proportioner

The Gusmer GH‑4 Proportioner delivers up to 45 lb/min flow, 2,000 psi spray pressure and uses a 15 kW heater package. Available in 230 V 3-phase (part no. 26C699) or 400 V 3-phase (part no. 26C700) variants, ideal for insulation and concrete-lifting foam jobs.

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Description

The Gusmer GH-4 Proportioner blends rugged construction with high performance for spray-foam applications. At its heart, the GH-4 features a point-to-point wired electrical cabinet mounted on a proven hydraulic chassis, incorporating horizontal pumps, fluid heaters, and a hydraulic system designed for reliability. Available in 15 kW heater configurations, the GH-4 supports either 230 V 3-phase (model 26C699) or 400 V 3-phase (model 26C700) power supply options, making it adaptable for different job-site requirements. With a maximum spray pressure of 2,000 psi and a mix ratio of 1:1, the GH-4 can achieve up to 45 lb/min flow, suitable for roofing insulation, residential wall fill, commercial insulation and concrete lifting operations. The Gusmer GH-4 also features easy service access with off-the-shelf components for the electrical cabinet, simplifying maintenance in the field. With its compact footprint (32″ W × 21″ D × 54″ H) and weight of 585 lb, the GH-4 is designed to integrate into mobile or stationary setups with minimal clutter on a proven Reactor 2 hydraulic chassis.
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Spray Foam Machine Info & Resources

Technical Specifications

  • Maximum operating temperature: 190 °F (88 °C)
  • Maximum hose length (heated hose plus whip): 410 ft (125 m)
  • Mix ratio: 1 : 1
  • Overall dimensions: 21 in depth × 32 in width × 54 in height (53.34 cm × 81.28 cm × 137.16 cm)
  • Fluid:oil pressure ratio (for GH-4 bare unit): 1.91 : 1
  • Model 26C699: GH-4 Proportioner Package, 15 kW heater, 230 V 3-phase.
  • Model 26C700: GH-4 Proportioner Package, 15 kW heater, 400 V 3-phase.

Frequently Asked Questions

Service & Support

What is the difference between the 230 V and 400 V variants of the Gusmer GH-4 Proportioner?

The GH-4 in 230 V 3-phase form is offered as part number 26C699, while the 400 V 3-phase version is part number 26C700. The key difference is the input voltage and likely the compatibility with the job-site’s electrical system.

What gun and hose-package options are available for the GH-4, and how do they affect performance?

The GH-4 is offered in different packaged variants, contact your rep for custom hose and whip packages.

What maintenance or service accessibility features does the GH-4 include?

The GH-4 features a point-to-point wired electrical cabinet mounted atop the chassis, and uses standard off-the-shelf hardware for easier service access.
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