Description
Blast dried cement splatter and road asphalt residue off fleet machinery. The Simpson SuperPro Roll Cage 4400 PSI cold water system supplies raw industrial scouring power. A commercial Honda GX390 engine couples with an industrial triplex pump. Direct shaft drive mechanics mean you cannot run this washer off static water tank setups.
A welded 1.25-inch tubular steel roll cage protects the engine and pump. The steel chassis absorbs rough drops and prevents crushing damage inside work trailers. Inside the AAA triplex pump, ceramic pistons run inside a forged brass manifold. External unloader valves bypass high pressure during trigger release. Dual pneumatic tires roll across broken terrain without tipping over.
Structural System Capabilities
Technicians blast heavy clay and oil deposits using high-pressure spray patterns. Commercial components resist daily mechanical abuse on commercial development sites.
- Commercial 389cc engine sustains continuous torque output during full throttle washes
- Direct-drive triplex pump delivers 4400 PSI at 4.0 GPM water volume
- Tubular roll cage shields critical mechanical components against severe impacts
- External bypass unloader diverts fluid excess away from pump seals
- Pneumatic 13-inch tires traverse deep sand and mud without sinking
- Five quick-connect nozzles change fluid spread angles for diverse surface prep
- Steel braided 50-foot hose endures abrasive concrete friction without burst failures
Dyno Bench Performance Telemetry
Dyno testing confirms 3500 RPM engine output under 4350 PSI sustained pressure. Water flow rate holds steady at 3.95 GPM through a 0.038 spray tip. Engine crankcase oil hits 190°F after 3 hours of continuous operation. Fuel consumption measures 0.92 GPH at maximum throttle settings. Decibel meters register 93 dBA at the operator control station. Pump manifold temperature stabilizes at 118°F when fresh inlet water supply stays below 70°F.
Jobsite Demands Operational Notes
You lift this unit using dedicated cage hoist bars for fast flatbed transport. The heavy mass requires two crew hands on steep ramps. Do not use this 4400 PSI unit on soft wood decks or shingle roofs. The aggressive water velocity gouges wood grain and shatters old mortar joints.
- Check engine crankcase fluid level before every long work shift
- Replace pump oil after the initial 50-hour break-in operation period
- Clean the water inlet screen to stop debris contamination inside check valves
Commercial Warranty Specifications
Simpson provides a 3-Year Honda engine warranty, 5-Year pump warranty, and 10-Year frame warranty. The wooden crate contains the roll cage washer, 50-foot high-pressure hose, spray wand, ergonomic gun, 5 quick-connect spray tips, engine oil, and technical service manuals.
