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.
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.