SXWA4G50N-CR | Triplex Pump, 4 GPM 5100 PSI, 1750 RPM, SXWA Series

SXWA4G50N-CR Corrosion-Resistant Triplex Plunger Pump with Factory Gearbox

Key Specifications

• Model: SXWA4G50N-CR
• Series: SXWA Factory Gearbox Installed 1 inch hollow drive
• Rated Flow: 4.0 GPM
• Maximum Pressure: 5,100 PSI
• Pump Speed: 1,750 RPM (pump input)
• Drive Reduction: Factory-installed gearbox
• Gearbox Included: AR-1698 reduction gearbox (factory mounted)
• Input Shaft: Gearbox input for 1 inch engine drive
• Pump Shaft: 24mm solid shaft (internal to gearbox output)
• Manifold: Corrosion-resistant brass with protective treatments
• Plungers: Solid ceramic
• Valves: Stainless steel
• Lubrication: Oil-bath crankcase with sight glass and vented dipstick

Factory Gearbox Integration (AR-1698)

• Supplied with a factory-installed AR-1698 reduction gearbox designed specifically for the SXWA4G50N-CR platform.
• Gearbox allows high-RPM engines or motors to safely drive the pump at its optimal 1,750 RPM operating speed.
• Eliminates the need for external belt-and-pulley systems, improving reliability and reducing maintenance points.
• Rigid gearbox mounting maintains precise shaft alignment between the driver and pump crankshaft.
• Gear reduction increases available torque at the pump, supporting stable pressure at 5,100 PSI.
• Compact gearbox design simplifies installation on skid systems, trailers, marine frames, and fixed wash bays.

SXWA4G50N-CR Pump Construction

• Manifold engineered with corrosion-resistant brass and protective surface treatments to withstand harsh environments.
• Designed for saltwater exposure, chemical detergents, caustic cleaners, and contaminated rinse water.
• Solid ceramic plungers resist abrasion, heat buildup, and chemical attack, extending seal and plunger life.
• Stainless steel valves prevent rust and pitting while maintaining reliable sealing under extreme pressure.
• Heavy-duty crankcase construction supports long-duty cycles without distortion or thermal instability.

Triplex Plunger Operating System

• Three-plunger triplex design produces smooth, evenly spaced pressure pulses.
• Reduced pulsation protects hoses, unloaders, regulators, and downstream accessories.
• Balanced internal geometry minimizes vibration transmitted to frames and mounting structures.
• Oil-bath lubrication continuously protects bearings, crankshaft journals, and connecting rods.
• Designed for continuous-duty commercial and industrial pressure washing.

Maintenance & Service Features

• Factory pre-filled with break-in oil for immediate commissioning.
• Integrated oil sight glass enables fast visual oil-level checks.
• Vented dipstick allows proper crankcase breathing and simplifies oil service.
• Gearbox and pump are independently serviceable without full disassembly.
• Service access designed to minimize downtime in field conditions.

Performance Advantages

• 4.0 GPM flow rate supports controlled, high-pressure cleaning with efficient water usage.
• 5,100 PSI output delivers aggressive cutting power for industrial surface preparation.
• Gear-reduced drive allows use of higher-speed engines while protecting pump internals.
• Lower pump RPM reduces internal wear compared to direct high-speed drive configurations.
• Stable pressure output supports consistent cleaning results in demanding environments.

Typical Applications

• Marine & Coastal: Dock washdown, shipyards, offshore platforms, boat and hull cleaning.
• Food Processing & Sanitation: USDA-regulated facilities using aggressive cleaning chemicals.
• Chemical & Industrial Plants: Process equipment washdown and containment cleaning.
• Wastewater & Utilities: Treatment plants, pump stations, and infrastructure maintenance.
• Agriculture: Fertilizer facilities, chemical sprayers, and livestock sanitation systems.
• Surface Preparation: Steel, aluminum, and concrete cleaning prior to coating or repair.

What’s Included

• SXWA4G50N-CR dual-packing triplex plunger pump
• Factory-installed AR-1698 reduction 1 inch hollow shaft gearbox
• Factory-filled break-in oil
• Oil sight glass and vented dipstick installed
• Owner’s manual, parts breakdown, and service documentation
• Factory performance and pressure test verification
• 5-year commercial pump warranty with U.S.-based service support

Why Choose the SXWA4G50N-CR with Gearbox

• Purpose-built for corrosive, chemical-heavy, and saltwater environments.
• Factory gearbox integration eliminates alignment errors and belt maintenance.
• High-pressure capability combined with controlled flow for professional results.
• Designed for long service life in applications where standard pumps fail early.
• Backed by Annovi Reverberi engineering and long-term commercial warranty coverage.