Description
Cut through packed road tar and concrete splatter on industrial sites. The Simpson SuperPro Roll-Cage 4000 PSI machine provides harsh mechanical stripping power. A commercial Honda GX390 engine couples with an industrial AAA triplex plunger pump. Direct shaft drive means you cannot draw water from static pasture barrels.
Four-corner tubular steel forms the rugged roll cage to defend mechanical parts from falling debris. The Honda engine uses an iron cylinder sleeve to survive high friction loads. A forged brass manifold houses ceramic-coated plungers inside the high-pressure pump. Rubber dampeners separate engine mounts from the frame to eliminate structural fatigue. Wide pneumatic tires absorb shocks over broken ground.
Roll Cage Architecture Details
Service technicians clear fleet frames fast using intense water velocity. The rigid steel frame withstands severe abuse inside crowded equipment transport beds.
- Commercial 389cc Honda engine produces steady power across long operating shifts
- Direct-drive triplex plunger pump generates 4000 PSI at 3.5 GPM water volume
- Welded 1.25-inch roll cage guards engine and pump against crushing drop impacts
- External bypass unloader diverts fluid excess away from pump seals
- Pneumatic 13-inch tires traverse deep sand and thick 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 Testing Data
Dyno testing confirms 3470 RPM engine output under 3950 PSI sustained pressure. Water flow rate holds steady at 3.48 GPM through a 0.035 spray tip. Engine crankcase oil reaches 188°F after 3 hours of continuous operation. Fuel consumption measures 0.88 GPH at maximum throttle settings. Decibel meters register 92 dBA at the operator control position.
Jobsite Application Target Limits
You hoist this unit onto flatbed trucks using dedicated center lift points. The wide wheel track guarantees stable transport across steep work ramps. Do not direct this 4000 PSI stream onto cedar siding or asphalt roof shingles. The extreme water velocity tears soft wood fibers and shears shingle granules.
- 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.






