XWM2128N-SX | 5.5 GPM 4060 PSI Pump 1450 RPM Left-Hand Drive

XWM2128N-SX Left-Hand Industrial Triplex Plunger Pump

The Annovi Reverberi XWM2128N-SX is a commercial-duty triplex plunger pump
engineered specifically for systems requiring a left-hand (reverse-rotation)
24mm solid shaft. Delivering 5.5 GPM at 4,060 PSI at a controlled
1,450 RPM, this model provides the same core performance, durability, and
mechanical precision as the standard XWM2128 series—while offering the mirrored
rotation demanded by certain OEM frames, trailer rigs, and specialty industrial
wash systems.

• 5.5 GPM at 4,060 PSI for demanding industrial wash applications
• Reverse-rotation 24mm solid shaft for mirrored or custom equipment layouts
• Triplex plunger design for consistent, pulse-controlled hydraulic output
• Built for continuous-duty environments with long runtime cycles
• Factory-tested and supported by AR’s commercial warranty network

Left-Hand Shaft Configuration

Purpose-Built for Counter-Rotation Systems

The defining feature of the XWM2128N-SX is its left-hand (reverse rotation) shaft,
allowing seamless integration into equipment where a standard right-hand pump
cannot be used. This orientation is critical for OEMs building mirrored assemblies,
dual-pump rigs, or custom-engineered solutions where system symmetry, layout
constraints, or gearbox requirements dictate counterclockwise rotation.

• Ideal for mirrored pump pairs in trailer wash systems
• Essential for OEM frames with reverse-positioned driveline geometry
• Compatible with counter-rotating electric motor and engine configurations
• Suited for tight installations requiring alternate shaft orientation
• Drop-in match for systems previously using left-hand XWM2128 variants

Industrial Pump Construction

Triplex Plungers & Structural Components

Built for demanding commercial use, the XWM2128N-SX employs a precision triplex
plunger design supported by ceramic plungers, stainless steel valves, and oversized
crankcase bearings. These materials deliver long wear life, stable output, and
predictable maintenance intervals even in harsh operating conditions such as
chemical washdown, municipal equipment cleaning, and construction environments.

• Ceramic plungers for abrasion resistance and thermal stability
• Stainless steel valves for accurate sealing under high pressure
• Oversized bearings engineered for continuous load conditions
• Forged brass manifold built to handle high-pressure thermal cycles
• Precision-ground crankshaft optimized for low vibration

Crankcase & Lubrication System of XWM2128N-SX

Monitoring & Long-Life Operation

The crankcase is filled with factory break-in oil and equipped with both an oil
sight glass and a vented dipstick. This ensures controlled lubrication,
pressurization, and heat dissipation during extended operation. The slow-speed
1,450 RPM duty point further reduces mechanical wear and helps maintain stable
lubrication distribution.

• Oil sight glass for quick maintenance checks
• Vented dipstick prevents crankcase pressure buildup
• Continuous lubrication for crankshaft, rods, and bearings
• Engineered for long service intervals between rebuilds
• Pre-filled with break-in oil for immediate installation

Performance Characteristics

Consistent Pressure Delivery

The XWM2128N-SX maintains steady volumetric efficiency across long duty cycles,
ensuring predictable nozzle performance and balanced hydraulic output. Its
slow-speed pump architecture reduces heat generation, lowers vibration, and
extends seal life—an essential factor for operators who expect the pump to run
daily with minimal downtime.

• 4,060 PSI working pressure for industrial degreasing & washdown
• Stable 5.5 GPM flow for heavy cleaning and long hose runs
• Low vibration operation for longer accessory and hose life
• Compatible with unloader valves, regulators, and multi-gun setups
• Reliable under chemical, detergent, and warm-water applications

Maintenance & Serviceability

Technician-Friendly Features

Designed with common AR service kits and modular internal components, the
XWM2128N-SX allows technicians to inspect, maintain, or rebuild the pump without
dismantling the entire assembly. Factory documentation provides full schematics,
torque specifications, and parts identification for streamlined field work.

• Modular valve and seal layout for reduced teardown time
• Accessible fasteners for in-place maintenance
• Service kits widely available through AR distributors
• Factory test report included for performance verification
• Supported by AR’s U.S. commercial service network

Applications & System Fit

Where the XWM2128N-SX Excels

This pump is designed for operations that demand strong pressure output and
reverse-rotation capability. It integrates into a wide range of industrial and
commercial wash systems where equipment layout, powertrain symmetry, or dual-pump
redundancy requires left-hand rotation.

• OEM-engineered wash platforms requiring mirrored shaft orientation
• Trailer-mounted contractor rigs with dual pump assemblies
• Municipal service vehicles for fleet, street, and equipment washing
• Industrial degreasing stations operating at 4,000+ PSI
• Agricultural and food-processing sanitation systems
• Construction and paint-prep operators needing high-pressure consistency

Why Specify the XWM2128N-SX

For operators and OEM builders who require high-pressure performance with a
left-hand shaft drive, the XWM2128N-SX provides a proven solution engineered for
reliability and long service life. Ceramic plungers, stainless valves, oversized
bearings, and a precision-ground crankshaft work together to deliver industrial
output at 5.5 GPM and 4,060 PSI.

• Purpose-built for reverse rotation systems
• Industrial-grade materials for continuous-duty environments
• Low-speed 1,450 RPM operation for reduced mechanical stress
• Service-friendly design supported by AR’s documentation and parts network
• Covered by a 5-year commercial warranty with U.S. support