RTX60-DD 15.8 GPM 4350 PSI Pump | Direct Drive Hydraulic

RTX60-DD | Direct Drive Hydraulic Pump | 15.8 GPM 4350 PSI | Top of the SAE B Class

RTX60-DD is the strongest pump that mounts on an SAE B hydraulic motor: Annovi Reverberi’s RTX 60.300 platform in pump-only direct-drive form — 15.8 GPM (60 L/min) at up to 4350 PSI (300 bar), 1450 RPM, with AR’s highest compact-frame power rating of 45 HP (33.6 kW) behind a hollow 13-tooth splined shaft. In the direct-drive ladder that runs RTX30 through RTX85, this is the top rung of the 13T world: more water-times-pressure than anything else that engages an SAE B spline, before the catalog jumps to the 14T SAE C hardware of the RTD frames.

That interface position is a fleet-architecture fact, not trivia. Operations standardized on SAE B motors, mounts, and spares can push all the way to the RTX60-DD without changing a single drive component — the same motor family, hose ends, and shelf stock that runs their smaller units runs this one. The pump delivers 20% more water than the 50.300 class at identical 300-bar pressure, which on jetting mains, cutting frost, and stripping big surfaces is the difference a crew feels by lunch.

RTX60-DD Specifications

• SKU: RTX60-DD
• Configuration: Direct-drive hydraulic pump — hollow 13T splined shaft mounts directly onto an SAE B hydraulic motor
• Pump: Annovi Reverberi RTX 60.300 (366-series frame)
• Flow Rate: 15.8 GPM (60 L/min)
• Maximum Discharge Pressure: 4350 PSI (300 bar)
• Rated Speed: 1450 RPM — never overspeed
• Power Requirement: 45 HP (33.6 kW) at full duty, per AR’s published rating
• Drive Interface: Hollow 13-tooth splined shaft, F56-class close-couple flange (SAE J498 B101)
• Inlet Ports (2): 1″ F
• Discharge Ports (2): 1/2″ F — high-pressure rated fittings only
• Maximum Fluid Temperature: 140°F
• Plungers: Ceramic
• Weight: Approximately 72 lbs (32.5 kg)

Hydraulic Supply Requirements

Feeding 45 pump horsepower takes roughly 56 hydraulic horsepower delivered continuously, and AR publishes both routes: a gear 90cc motor on 142 L/min (37.5 GPM) of oil at 176 bar (2,552 PSI) for flow-rich systems, or a piston 64cc on 102 L/min (26.9 GPM) at 244 bar (3,538 PSI) where the circuit carries pressure instead. Both are engineered-supply territory — a jetter or hydrovac truck’s dedicated system or a purpose-built power unit with reservoir, return filtration, and cooling designed for shift-length duty. For any other SAE B motor, target 1450 RPM via RPM ≈ 231 × hydraulic GPM ÷ displacement (in³), verify torque at working pressure, and relieve within the motor’s rating. Call WSHPWR with your circuit’s numbers and we will name the pairing before you order.

The Interface Ceiling, Used Deliberately

Every drive interface has a practical power ceiling, and the RTX60-DD sits precisely at SAE B’s: past this duty point, AR’s catalog moves to 1000 RPM RTD platforms on 14T SAE C splines — different motors, different mounts, twice the pump weight, and a fresh spares shelf. For builds that must stay inside the SAE B world — weight-rated bodies, tandem trailers, fleets with standardized drive stock — this pump is the deliberate maximum: everything the interface can carry, nothing that forces the platform jump. Operations whose duty genuinely outruns it should price the RTD move with eyes open; WSHPWR stocks both sides and will run the comparison against your chassis and duty-cycle numbers.

Direct-Drive Architecture

The hollow 13T spline engages a male-splined SAE B motor at the F56 flange — no coupler, no belt, no field alignment, no side load reaching bearings or seal packs. Motor and pump dismount independently at the flange, the RTX60-DD shares repair kits and procedures with the whole RTX family, and the 72-pound frame keeps one-technician handling realistic.

Installation & Operation Notes

Confirm the motor spline before ordering — 13T SAE B; 14T SAE C hardware from RTD-class systems will not engage. Mount horizontally, verify rotation at commissioning, and oversize the suction path: 15.8 GPM through restricted plumbing cavitates, and at 300 bar the damage compounds fast — flooded, filtered, full-size through the dual 1″ inlets, always. Fit an unloader plus safety relief rated for the working pressure, keep all downstream hardware rated for 4350 PSI with margin, size nozzles to the 15.8 GPM duty point, hold 1450 RPM as the ceiling, and winterize before cold-weather storage.

Quality Assurance & Maintenance

Every RTX60-DD ships factory-tested for flow rate, pressure stability, and vibration. Service follows the shared RTX schedule — crankcase oil changes, seal inspection, in-place valve checks with common AR repair kits — with seal condition watched proportionally to the 45 HP this frame carries every working hour.

RTX60-DD Key Features & Applications

• 15.8 GPM at 4350 PSI (300 bar), 1450 RPM — the strongest pump on the SAE B interface.
• AR’s highest compact-frame rating at 45 HP; 20% more water than the 50.300 class at identical pressure.
• Two published pairings: gear 90cc (37.5 GPM oil) or piston 64cc (26.9 GPM oil), ~56 hydraulic HP.
• Keeps fleets inside their standardized SAE B motors, mounts, and spares — no platform jump.
• Ceramic plungers and in-place valve service on the shared RTX parts shelf, ~72 lbs.
• Ideal for main-line jetting, production hydro-excavation, large-area stripping, and SAE B-standardized fleet builds at the top of the compact envelope.