XWM2128N-CR 5.5 GPM 4060 PSI Pump | Corrosion-Duty 1450 RPM

XWM2128N-CR Industrial Triplex Plunger Pump with AR1600 Gear Box

The AR North America XWM2128N-CR is a heavy-duty triplex plunger pump engineered for industrial, marine, and chemical-washdown environments that demand consistent, long-duration hydraulic performance. The CR designation identifies this model as factory-configured with a gas engine–compatible AR1600 gear box, converting the standard 1,450 RPM shaft-drive pump into a direct-attach gear box model designed to mount directly onto a 1-inch gas engine crankshaft. This factory-installed drivetrain integration makes the XWM2128N-CR a complete, field-ready solution for operators running gasoline-powered pressure washing and industrial cleaning systems.

Delivering 5.5 GPM at 4,060 PSI while operating at a low 1,450 RPM, the XWM2128N-CR combines the mechanical efficiency of the AR triplex platform with the versatility of gas engine compatibility. The result is a pump system purpose-built for remote, off-grid, or mobile industrial operations where electric power is unavailable or impractical.

What the CR Designation Means on the XWM2128N-CR

The CR suffix on the XWM2128N-CR is a factory-installed configuration code, not a materials designation. It identifies that this unit ships with the AR1600 gear box pre-installed. The AR1600 gear box performs a critical mechanical function: it converts the pump’s standard 1,450 RPM shaft-drive output into a direct-mount interface compatible with a 1-inch gas engine crankshaft.

This distinction is important when selecting the correct pump model for your application:

• XWM2128N-CR includes the AR1600 gear box factory-installed at the pump shaft, enabling direct coupling to a gas engine crankshaft.
• The gear box converts the standard 1,450 RPM pump into a direct-drive gear box model rated for 1-inch shaft gas engines.
• No additional adapters, couplers, or gear box assemblies are required — the XWM2128N-CR arrives ready to mount.
• This makes the XWM2128N-CR the correct choice when specifying a gas engine–driven pump system out of the box.

AR1600 Gear Box — Factory Integration on the XWM2128N-CR

The AR1600 gear box is the defining mechanical component of the XWM2128N-CR configuration. Designed and installed at the factory, the AR1600 bridges the gap between a standard gasoline engine and the triplex plunger pump, enabling direct crankshaft attachment without secondary mounting hardware. For operations that depend on gas-powered equipment, this factory integration eliminates field assembly complexity and ensures the drivetrain coupling is properly aligned, torqued, and tested before shipment.

AR1600 Gear Box Specifications and Features

• Factory-installed on the XWM2128N-CR — no field assembly required for gear box mounting.
• Converts the 1,450 RPM shaft-drive pump into a direct-attach gear box model compatible with a 1-inch gas engine crankshaft.
• Designed for use with standard horizontal-shaft gasoline engines in the appropriate horsepower range.
• Gear box housing is matched to the AR triplex crankcase platform for precise mechanical alignment.
• Enables stable torque transfer from the engine crankshaft to the pump, protecting both the engine and pump assembly from misalignment stress.
• Factory-tested with the pump assembly prior to shipment to confirm engagement, alignment, and hydraulic output.

XWM2128N-CR Performance Characteristics

The XWM2128N-CR is designed around a slow-speed, high-pressure operating profile that extends component life while delivering the hydraulic output industrial cleaning and process-area washdown applications require. Whether paired with a gasoline engine for mobile use or integrated into a stationary gas-powered washdown station, the pump’s performance specifications support demanding continuous-duty cycles.

• 5.5 GPM flow output supports high-volume rinsing, flushing, and chemical processing washdown.
• 4,060 PSI operating pressure delivers strong mechanical action against heavy deposits, marine scale, and industrial grime.
• 1,450 RPM operation minimizes wear across plungers, seals, and bearings for extended service intervals.
• Triplex plunger design ensures steady, balanced hydraulic displacement with minimal pressure pulsation.
• Optimized internal porting maintains efficient flow paths and reduces cavitation risk under sustained load.
• Thermal stability supports long washdown sessions and continuous gas engine–powered operation in outdoor environments.

Industrial-Grade Mechanical Construction

The XWM2128N-CR is built on AR’s heavy-duty crankcase platform, engineered for continuous-duty operation across industrial, marine, and outdoor cleaning applications. Every major mechanical system is designed to support extended run times, resist fatigue, and minimize service requirements in the field.

Crankcase and Drive Assembly

• Precision-machined crankshaft rated for long-duration load stability under continuous gas engine–powered operation.
• Oversized bearings for smooth rotation and extended mechanical service life.
• Hardened steel connecting rods engineered for continuous-duty cyclic loading.
• Die-cast aluminum crankcase with integral cooling fins for improved heat dissipation during extended run cycles.
• Oil-bath lubrication system with sight glass for fast, visual maintenance checks in the field.
• Bottom-mounted drain plug for simplified oil changes and preventive maintenance routines.

Fluid End Construction

• Forged-brass manifold with protective coating for resistance to moisture and chemical exposure.
• Stainless steel inlet and discharge valves designed to withstand chemical and salt-air environments.
• Solid ceramic plungers offering high resistance to temperature variation, abrasion, and chemical attack.
• Elastomer seal kit engineered for caustic washdown fluids and prolonged reciprocating service.
• Fastener and hardware selection focused on corrosion mitigation in coastal and chemical processing environments.

Primary Applications for the XWM2128N-CR

The gas engine compatibility of the XWM2128N-CR, enabled by the factory-installed AR1600 gear box, makes this pump the preferred choice wherever electric power is absent, unreliable, or impractical. Its high-pressure output and durable construction support a wide range of demanding industrial and field cleaning scenarios.

Ideal Operating Environments

• Mobile industrial washdown stations where gas engine–driven equipment is required for remote site access.
• Marine service areas including docks, shipyards, and onboard cleaning systems powered by portable gasoline engines.
• Chemical processing facilities requiring a durable, high-pressure pump compatible with gas engine drive systems.
• Wastewater treatment plants using gas-powered backup or supplemental cleaning equipment.
• Heavy-equipment maintenance yards and field service operations where power infrastructure is limited.
• Coastal and offshore maintenance operations combining the benefits of gas engine mobility with reliable triplex pump output.
• Tank farms and containment areas requiring independent, gas-powered pressure cleaning systems.

Maintenance and Service Accessibility

Field serviceability was a core consideration in the design of the XWM2128N-CR. Access to critical wear components is straightforward, keeping downtime minimal even in remote or industrial operating environments.

• Large valve caps allow straightforward inspection and replacement of valve assemblies without specialized tooling.
• Accessible seal packing for routine rebuild procedures in the field or shop.
• Easy-to-read oil sight glass supports scheduled preventive maintenance before and after each operating session.
• Factory-tested components confirm flow consistency and sealing integrity prior to shipment.
• AR1600 gear box is factory-aligned and torque-verified — no field adjustment required at initial installation.

Advantages of Selecting the XWM2128N-CR

The XWM2128N-CR is the right specification when your application requires a gasoline engine–driven triplex plunger pump with a factory-installed, direct-crankshaft gear box. No other configuration in the XWM2128N lineup ships with this level of gas engine integration out of the box.

• Factory AR1600 gear box enables direct 1-inch gas engine crankshaft attachment — no additional components required.
• Complete, field-ready system that eliminates sourcing, fitting, and aligning a separate gear box assembly.
• Low-speed mechanical design significantly extends operational lifespan across plungers, seals, and bearings.
• High-pressure and high-volume output combination supports demanding industrial cleaning and process-area applications.
• Ceramic plungers and stainless valves ensure consistent, long-term hydraulic performance in tough environments.
• Reduced vibration and predictable hydraulic output enhance system stability in mobile and stationary gas engine–driven configurations.
• Backed by a comprehensive 5-year commercial warranty from AR North America.

XWM2128N-CR Summary

The AR North America XWM2128N-CR is an industrial triplex plunger pump factory-configured with the AR1600 gear box for direct gas engine crankshaft attachment. The CR designation identifies this specific drivetrain configuration — a factory-installed gear box that converts the 1,450 RPM pump shaft into a direct-attach interface for 1-inch gasoline engine crankshafts. Delivering 5.5 GPM at 4,060 PSI with a slow-speed mechanical design built for continuous-duty performance, the XWM2128N-CR is the complete gas engine–driven pump solution for marine, industrial, chemical, and remote field cleaning applications. For operators requiring mobile, gasoline-powered pressure washing capability with no additional drivetrain hardware, the XWM2128N-CR delivers a factory-tested, warranty-backed system ready to work from day one.