HYDM-SF-084W-SAE-RTD80 Hydraulic Motor | 84 cc Sunfab

HYDM-SF-084W-SAE-RTD80 Hydraulic Direct-Drive Assembly

System Configuration

• Purpose-matched hydraulic drive combining a Sunfab 84 cc/rev (≈5.13 cid) LSHT motor with an Annovi Reverberi RTD80.300 N-version triplex plunger pump.
• Designed for compact skids, service bodies, trailers, and plant carts where space efficiency and uptime are critical.
• Direct SAE-C motor-to-pump mounting maintains a single coaxial centerline.
• Eliminates belts, pulleys, and external guards to reduce footprint and maintenance.
• Engineered for repeatable OEM builds and predictable long-term alignment.

Pump Duty & Mechanical Output

• AR HYDM-SF-084W-SAE-RTD80 RTD80.300 N-version triplex plunger pump with 35 mm solid shaft.
• Rated for 79.5 L/min (21.0 GPM) @ 300 bar (4350 PSI) at 1000 RPM.
• High-flow, high-pressure capability suited for heavy industrial washdown.
• Operating speed optimized for long service life and stable pressure delivery.
• Triplex design provides smooth flow and reduced pressure ripple.

Hydraulic Motor Specification

• Sunfab LSHT hydraulic motor with 84 cc/rev (≈5.13 in³/rev) displacement.
• Selected to match RTD80 torque and speed requirements at 1000 RPM.
• SAE-C direct-drive interface ensures rigid, alignment-stable coupling.
• High starting torque supports loaded starts and consistent trigger response.
• Compact motor envelope simplifies packaging in confined installations.

Hydraulic Interface & Porting

• Typical hydraulic connections include SAE-12 ORB (3/4″) pressure and return.
• Case drain commonly SAE-8 ORB (1/2″); verify exact configuration on supplied motor.
• Case drain must return to reservoir above oil level with no restrictions.
• A/B port orientation must be confirmed to ensure correct rotation.
• Hose diameters and bend radii must be sized to prevent pressure loss and heat buildup.

Water-Side Plumbing Requirements

• RTD80 series HYDM-SF-084W-SAE-RTD80 pumps typically use a 1-1/2″ F BSPP inlet.
• Discharge port typically 1″ F BSPP; adapters to NPT are available.
• Suction plumbing must be short, straight, and oversized from a flooded source.
• Anti-collapse suction hose and coarse inlet strainer are required.
• Unloader placement must allow open access for adjustment and service.
• High-pressure relief valve and glycerin-filled gauge are required for protection and diagnostics.

Hydraulic Sizing & Performance Math

• Motor speed: RPM ≈ 231 × hydraulic GPM ÷ displacement (in³).
• With 5.13 in³ displacement, approximately 22.2 GPM hydraulic flow produces ~1000 RPM.
• Theoretical torque: lb-in ≈ displacement × PSI ÷ 6.283.
• At 4350 PSI, torque is approximately 3550 lb-in (≈296 lb-ft) before efficiency losses.
• Hydraulic horsepower: HP ≈ GPM × PSI ÷ 1714.
• At the rated water duty point, theoretical demand is approximately 53 HP.
• Final drive sizing must account for motor, pump, and mechanical efficiency.

System Protection & Thermal Control HYDM-SF-084W-SAE-RTD80

• Hydraulic system relief valves must be set for 300 bar (4350 PSI) service.
• 10–25 μm return filtration with suitable beta rating is required.
• Reservoir volume should follow a practical guideline of 2–3× total system flow.
• Oil cooling is required for hot climates, extended bypass, or continuous-duty operation.
• Thermal relief valve on the water bypass loop protects seals during gun-closed operation.
• Nozzle selection must achieve target flow and pressure without overspeeding the pump.

Mounting, Alignment & Service Access

• Motor and pump mount HYDM-SF-084W-SAE-RTD80 on a shared rigid base to preserve coaxial alignment.
• Alignment stability reduces bearing and seal side-loading.
• Service layout provides direct access to coupling, fasteners, sight glass, and vented dipstick.
• Routine checks and oil service can be performed by a single technician.
• Geometry remains stable through transport, temperature variation, and daily operation.

Industrial Applications

• Marine docks, tug boats, aquaculture pens, and vessel washdown.
• Food and beverage sanitation and packaging environments (observe hygienic standards).
• Municipal sanitation, jetter support skids, and fleet wash systems.
• Agriculture and ranch equipment wash and barn cleanup.
• Conveyor and parts-cleaning cells and plant maintenance systems.
• Rental fleets, contractor rigs, and mobile wash skids with existing hydraulic power.

HYDM-SF-084W-SAE-RTD80 Ownership & Warranty Considerations

• AR pump ships with crankcase oil installed.
• Includes vented dipstick and oil sight glass for pre-start inspection.
• Periodic fastener torque checks and oil service are required.
• Covered by a 5-year limited, conditional Annovi Reverberi warranty.
• Warranty requires correct hydraulic installation, filtration, lubrication, and operation within published limits.
• Seals and valves are considered consumable service items.