RTD80.300HN-DD | 21 GPM 4350 PSI Hydraulic Pump Direct Drive

RTD80.300HN-DD Hydraulic Pump Overview

The RTD80.300HN-DD is a high-performance, heavy-duty direct-drive hydraulic pump engineered for continuous industrial, mobile, and commercial cleaning systems requiring maximum durability and pressure stability.

Key Performance Highlights

• Flow Rate: 21.0 GPM
• Pressure Rating: 4,350 PSI
• Direct-drive hydraulic input for precise speed and torque control
• Smooth, pulse-free flow ideal for multi-nozzle and high-demand systems
• Designed for continuous-duty industrial environments

Construction & Durability

Manifold & Valve System

• Corrosion-resistant precision-machined brass manifold
• Engineered internal flow paths minimize turbulence and pressure loss
• Stainless-steel check valves ensure accurate suction and discharge timing
• Leak-free sealing under repeated high-pressure cycling

Ceramic Plunger Assembly

• Three solid ceramic plungers for superior wear resistance
• Low thermal expansion for stability under continuous heat and load
• Stainless-steel piston guides reduce friction for efficient water displacement

Crankcase & Internal Mechanics

• Die-cast aluminum crankcase for lightweight strength and heat dissipation
• Hardened steel crankshaft mounted on oversized ball bearings
• Oil-bath lubrication system protects all moving components
• Integrated sight glass for easy oil-level inspection

Hydraulic Drive Advantages

Operational Benefits

• Direct-drive configuration eliminates belts, pulleys, and gearboxes
• Precise speed control through hydraulic motor adjustment
• Low vibration and noise
• Efficient torque transfer for consistent pressure output

Application Flexibility

• Ideal for factory wash systems
• Mining and heavy-equipment maintenance
• Agricultural machinery and rigs
• Marine cleaning operations
• Fleet and commercial vehicle washing

Seals, Valves & Internal Protection

Component Advantages

• High-temperature elastomer seals and O-rings resist chemicals and detergents
• Stainless-steel check valves maintain stable pressure and prevent cavitation
• Reliable performance with both cold and warm water
• Modular design allows quick access for seal, valve, and plunger maintenance

Factory Testing & Quality Assurance

What AR Verifies

• Flow accuracy and hydraulic balance
• Sealing integrity under maximum load
• Pressure stability throughout duty cycles
• Noise, vibration, and performance tolerances

Operational Benefits

Why Professionals Choose the RTD80.300HN-DD

• Built for continuous industrial use
• Low-speed, smooth operation extends pump and system life
• Reduced maintenance frequency
• Exceptional pressure stability across all operating conditions
• Resistant to harsh environments and aggressive detergents

RTD80.300HN-DD | 21 GPM 4350 PSI

Hydraulic Pump Direct Drive

The AR RTD80.300HN-DD delivers 21.0 GPM at 4,350 PSI with direct-drive hydraulic efficiency, heavy-duty construction, and long-life ceramic plungers—making it one of the most capable pumps in the RTD Series. Its rugged build, variable-speed hydraulic control, and smooth, stable operation make it a trusted solution for demanding industrial, agricultural, marine, and mobile cleaning applications requiring unmatched reliability and continuous-duty performance.