RGX Series is AR’s answer for extreme pressure applications. With ratings up to 7,250 PSI, these pumps are engineered for jobs where intense, focused water power is the only way to get results. While they don’t move as much water as high-flow models, the RGX delivers surgical cleaning precision — perfect for blasting away hardened coatings, removing tough deposits, and prepping concrete or steel surfaces.

These are not everyday contractor pumps. They’re specialized tools designed for professionals who need ultra-high pressure performance in a compact, serviceable package.

Key Specs at a Glance

• Models:
  • RGX1550N → 4.0 GPM @ 7250 PSI
  • RGX2250N → 5.8 GPM @ 72500 PSI
  • RGXA4G70HN → 4.0 GPM @ 7000 PSI
• RPM: 1450–1750 depending on model
• Shaft: 24 mm solid shaft
• Bore x Stroke: 35 mm x 18–21 mm
• Oil Capacity: 31.8 oz
• Construction: Brass manifold, ceramic plungers, aluminum connecting rods

Why the RGX Stands Out

Most pumps top out at 4000–5000 PSI, but the RGX takes it further. Hitting 7000+ PSI, it enters the territory of surface prep contractors, municipalities, and specialty cleaning crews who need more than a standard wash-down pump.

• Ultra-High Pressure → For applications requiring >7500 PSI
• Compact & Manageable → Lighter and smaller than many “big frame” industrial pumps
• Engineered Durability → Brass head, oversized ceramic plungers, and AR’s proven crankcase design
• Service-Friendly → Fully rebuildable with AR’s repair kits, reducing long-term costs

Technical Breakdown

• RGX1550N
  • 15 L/min (4.0 GPM)
  • 500 bar (7250 PSI)
  • 20 HP required
  • 1450 RPM

• RGX2250N
  • 22 L/min (5.8 GPM)
  • 500 bar (7250 PSI)
  • 29 HP required
  • 1450 RPM

• RGXA4G70HN
  • 15 L/min (4.0 GPM)
  • 480 bar (7000 PSI)
  • 19 HP required
  • 1750 RPM

Where the RGX Excels
These pumps are not for car washes or fleet cleaning. Instead, the RGX is built for extreme duty, precision jobs where raw pressure matters more than gallons per minute.

Ideal Applications:

• Concrete surface prep before epoxy or coatings
• Hydro-demolition of weak or deteriorated concrete
• Steel cleaning prior to marine or industrial coatings
• Graffiti & coating removal in municipalities and restoration jobs
• Industrial descaling of pipes, tanks, and heat exchangers
• Shipyard maintenance where high PSI is required for scale and corrosion
• Specialty blasting projects where sandblasting alternatives are needed

Maintenance & Repair

The RGX Series is designed to be rebuilt multiple times, making it a long-term investment for contractors. Repair kits keep downtime minimal and costs predictable.

Special Parts / Kits

• AR2748: Rail Kit 1-1/4” (2 rails & 4 bolts) – $32.13
• AR2748H: Rail Kit 2-1/2” (2 rails & 4 bolts) – $90.84
• AR64516: Oil (16 oz) – $15.80

Repair Kits

• AR43408: Valves – $142.93
• AR43409: Pistons – $71.50
• AR43410: Water Seals – $108.02
• AR2873: Oil Seals – $53.95 (7 pcs)
• AR43411: Piston Guides – $72.02 (3 pcs)

Advantages of Choosing RGX

• Extreme PSI Capacity → Few pumps operate reliably at 7000 PSI.
• Compact Build → Easy to integrate into specialty rigs.
• Serviceability → Lower lifetime costs with rebuildable kits.
• Brand Trust → AR North America is widely recognized for consistent quality.
• Flexibility → 3 different models cover both flow- and pressure-priority jobs.

Benefits for Contractors & Operators

• Bid More Specialized Jobs → With 7000 PSI capacity, you can secure contracts others can’t.
• Replace Sandblasting → Environmentally friendlier surface prep in some cases.
• Save on Downtime → Rebuild kits extend pump life cycle.
• Earn Faster ROI → Specialty cleaning markets often command higher rates.
• Future-Proofing → As environmental regulations restrict abrasives, water-based surface prep will grow.

Conclusion

The AR RGX Series Solid Shaft Pumps occupy a special niche in the professional cleaning and industrial service world. They’re not about volume — they’re about cutting pressure, with models delivering up to 7250 PSI in a compact frame.

For contractors in concrete prep, hydro-demolition, industrial cleaning, and specialty restoration, the RGX provides a trusted, rebuildable, and high-performance solution that expands your service capabilities.

If your business demands extreme PSI with proven AR durability, the RGX Series is the professional’s edge in high-pressure water technology.

For additional industry standards and technical resources, visit: https://www.pumps.org/