RTX70-DD 18.5 GPM 2900 PSI Pump | Direct Drive Hydraulic

RTX70-DD | Direct Drive Hydraulic Pump | 18.5 GPM 2900 PSI | The Do-Both Duty Point

RTX70-DD is the generalist of Annovi Reverberi’s direct-drive line — the RTX 70.200 platform delivering 18.5 GPM (70 L/min) at up to 2900 PSI (200 bar) at 1450 RPM, with a hollow 13-tooth splined shaft for direct SAE B hydraulic motor mounting and AR’s published 35 HP rating on a 72-pound frame. Its siblings specialize: the 60.300 trades flow for 300-bar cutting pressure, the 85.150 trades pressure for maximum rinse volume. The RTX70-DD refuses the trade — fire-hose flow and genuine 200-bar authority from one wet end, which is why it fits more real-world duty lists than any other pump in the family.

Think about what a support truck actually does in a day: rinse tooling and tanks at volume in the morning, cut caked clay off an undercarriage at noon, feed a jetting nozzle after lunch. Specialist pumps do one of those excellently and the others grudgingly. The RTX70-DD does all three well — and for fleets buying one pump to cover a mixed workload, “well at everything” beats “perfect at one thing” every season of the year.

RTX70-DD Specifications

• SKU: RTX70-DD
• Configuration: Direct-drive hydraulic pump — hollow 13T splined shaft mounts directly onto an SAE B hydraulic motor
• Pump: Annovi Reverberi RTX 70.200 (366-series frame)
• Flow Rate: 18.5 GPM (70 L/min)
• Maximum Discharge Pressure: 2900 PSI (200 bar)
• Rated Speed: 1450 RPM — never overspeed
• Power Requirement: 35 HP (26.1 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
• Maximum Fluid Temperature: 140°F
• Plungers: Ceramic
• Weight: Approximately 72 lbs (32.5 kg)
• Left-hand rotation version available: RTX70-DD-SX

Hydraulic Supply Requirements — Four Published Ways In

No pump in the family fits more circuits: Annovi Reverberi publishes four factory motor pairings for the RTX70-DD platform, spanning nearly the whole range of engineered systems. Flow-rich: the gear 90cc on 142 L/min (37.5 GPM) of oil at 137 bar (1,987 PSI). Balanced: the piston 64cc on 102 L/min (26.9 GPM) at 190 bar (2,756 PSI) or the gear 44cc on 71 L/min (18.8 GPM) at 240 bar (3,481 PSI) — the displacement WSHPWR stocks as the HYDM-DF-044 companion motor. Flow-tight, pressure-rich: the piston 34cc on 55 L/min (14.5 GPM) at 350 bar (5,076 PSI). Budget roughly 38–43 hydraulic horsepower continuously whichever route fits, engineer reservoir, return filtration, and cooling for shift duty, and relieve within the motor’s rating. Call WSHPWR with your circuit’s flow and pressure and we will name the pairing in one conversation.

One Pump, Mixed Workloads

The economics of the generalist show up in fleet math. A mixed-duty operation running a flow specialist plus a pressure specialist buys two pumps, two motors, two spares kits, and two maintenance schedules; the RTX70-DD covers the same workload envelope with one of each. Nozzle selection does the specializing — a wide fan at 18.5 GPM rinses like a hydrant, a tight jet at 2900 PSI cuts and strips — while the pump underneath stays constant. And when the workload genuinely polarizes, the platform ladder is one flange away in either direction; WSHPWR stocks it all and will match the duty honestly.

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 RTX70-DD shares repair kits with the entire RTX family, and the SX left-rotation sibling covers mirrored drive layouts on reversed installations.

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 give the suction path the engineering 18.5 GPM demands: flooded, filtered, full-size through the dual 1″ inlets — high-flow pumps forgive nothing at the inlet. Fit an unloader plus safety relief rated for the working pressure, size nozzles deliberately to the duty of the day at 18.5 GPM, hold 1450 RPM as the ceiling, and winterize before cold-weather storage.

Quality Assurance & Maintenance

Every RTX70-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 — and the moderate 200-bar duty point keeps wear rates on the friendly side of the family curve even at high flow.

RTX70-DD Key Features & Applications

• 18.5 GPM at 2900 PSI (200 bar), 1450 RPM — flow and authority together, the family’s widest duty fit.
• Four AR-published motor pairings, from 14.5 to 37.5 GPM of oil — more circuits qualify than for any sibling.
• Pairs with WSHPWR’s stocked HYDM-DF-044 gear motor at the published 240-bar operating point.
• Hollow 13T splined shaft direct drive; SX left-rotation version available for mirrored layouts.
• Ceramic plungers and in-place valve service on the shared RTX parts shelf, ~72 lbs.
• Ideal for hydrovac and jetter support trucks, mixed-duty fleet washdown, aggregate and municipal rigs, and single-pump builds covering rinse and strip work alike.