F12-030-RS-SV-S-000-000 Parker Piston Motor 30cc 500 bar

Product Overview

The F12-030-RS-SV-S-000-000 and F12-030-LS-SV-S-000-000 are 030 frame size models within the Parker Hannifin F12 Series of large frame bent axis fixed displacement piston motors, available in two rotation direction configurations. The F12 Series is a high-performance bent axis fixed displacement heavy-duty motor/pump series produced by Parker PMDE (Pump & Motor Division Europe, Trollhättan, Sweden), suitable for numerous applications in both open and closed loop circuits.

F12 Series motors employ a unique spherical piston concept that allows them to be used at unusually high shaft speeds, with operating pressures to 500 bar providing for high output power capability. The 40° angle between shaft and cylinder barrel allows for a very compact, lightweight motor/pump. The laminated piston ring offers important advantages such as low internal leakage and thermal shock resistance. F12 motors produce very high torque at start-up as well as at low speeds. The unique timing gear design synchronizes shaft and cylinder barrel, making the F12 very tolerant to high ‘G’ forces and torsional vibrations. Heavy duty roller bearings permit substantial external axial and radial shaft loads. The F12’s have a simple and straightforward design with very few moving parts, making them very reliable motors/pumps.

Model code breakdown: F12 = series designation; 030 = displacement size 30 cc/rev; RS = right-hand rotation (clockwise, pump operation) / LS = left-hand rotation (counter-clockwise, pump operation); SV = shaft end and flange configuration; S = seal material; 000-000 = standard variant.

As drop-in replacements, both models are fully compatible with the OEM Parker specification in mounting interface, shaft end configuration, and performance characteristics, enabling direct replacement without hydraulic circuit or mounting bracket modification. Every unit undergoes 100% simulation-based testing prior to shipment, covering displacement calibration, torque output, pressure holding, and internal leakage.

Technical Specifications

All parameters below are based on Parker Hannifin official technical catalogue (MSG30-8249-US) and verified supplier technical pages:

F12-030 Common Technical Specifications:

• Complete Model: F12-030-RS-SV-S-000-000 / F12-030-LS-SV-S-000-000

• Brand: Parker Hannifin

• Product Series: F12 Series large frame bent axis fixed displacement motor/pump

• Product Type: Bent axis fixed displacement piston motor

• Displacement: 30.0 cm³/rev (1.83 cu in/rev)

• Max Intermittent Pressure: 500 bar (7252 psi)

• Max Continuous Pressure: 450 bar (6527 psi)

• Max Intermittent Speed: 8600 rpm

• Max Continuous Speed: 7300 rpm

• Min Continuous Speed: 50 rpm

• Max Intermittent Input Flow: 219 L/min

• Max Continuous Input Flow: 201 L/min

• Theoretical Torque (@ 100 bar): 47.6 N·m (35.1 lb-ft)

• Direction of Rotation: RS — right-hand (clockwise, pump operation) / LS — left-hand (counter-clockwise, pump operation)

• Cylinder/Shaft Angle: 40°

• Piston Count: 7 or 9 piston design

• Mounting: ISO / SAE / CETOP / Cartridge

• Shaft End: ISO / SAE standard

• Port Connection: SAE flange / ISO / BSPP

• Body Material: Cast Iron

• Seal Material: FPM (Viton)

• Hydraulic Fluid: Standard mineral oil

• Fluid Temperature Range: -40°C to +115°C

• Optimum Viscosity: 15 – 30 cSt (rated for 8 – 1000 cSt)

• Cleanliness Requirement: ISO 4406 20/18/13

• Max Radial Shaft Load: 1900 kg (4180 lb)

• Weight: Approx. 77 kg (series maximum)

• Mounting Position: Any position

Note: Specifications are based on Parker Hannifin official technical catalogue (MSG30-8249-US) and verified supplier technical pages. The F12 Series encompasses 11 displacement specifications: F12-030, -040, -060, -080, -090, -110, -125, -152, -162, -182, and -250, with displacement range of 30 – 242 cm³/rev. Always verify against the complete model code and consult the latest Parker official technical documentation during selection.

Key Technical Advantages

1. Unique Spherical Piston Design with 40° Bent Axis Structure for High Speed and High Pressure Performance

The F12-030 employs Parker’s unique spherical piston concept, allowing the motor to operate at unusually high shaft speeds with maximum intermittent speeds up to 8600 rpm. The 40° angle between shaft and cylinder barrel results in a very compact, lightweight motor, delivering higher power density at the same displacement. This design makes the F12 Series particularly suitable for industrial and mobile hydraulic applications requiring high speed and high power output.

2. Laminated Piston Rings with Low Internal Leakage Design

The F12-030 features laminated piston ring design, offering important advantages such as low internal leakage and thermal shock resistance. The laminated structure maintains excellent sealing performance under high temperature and high pressure conditions, effectively reducing volumetric losses, improving overall efficiency, and reducing greenhouse gas emissions and fuel consumption.

3. Gear Synchronization and Heavy-Duty Bearing System for High Reliability and Long Life

The F12 Series employs a proven gear synchronization design that precisely synchronizes shaft and cylinder barrel, providing strong tolerance to high ‘G’ forces and torsional vibrations. Heavy-duty cylindrical roller bearings withstand substantial external axial and radial shaft loads, with maximum radial shaft load capacity of 1900 kg. The unique piston locking, timing gear, and bearing setup, combined with a limited number of moving parts, constitute a very robust design with long service life and proven reliability.

4. RS/LS Dual Rotation Direction Configuration for Diverse System Requirements

The series offers RS (right-hand/clockwise) and LS (left-hand/counter-clockwise) rotation direction configurations, satisfying different hydraulic system installation and piping layout requirements. The motors are suitable for both open and closed loop systems and can be widely applied in construction machinery, industrial equipment, energy, and transportation sectors. Mounting flanges and shaft ends conform to ISO, SAE, and cartridge standards for easy system integration.

5. 100% Simulation-Based Testing and Drop-In Interchangeability

Every F12-030 undergoes 100% simulation-based testing prior to shipment. Test protocols cover displacement calibration, torque output verification, pressure holding performance, and internal leakage detection. As a drop-in replacement, the motor is fully compatible with the OEM Parker specification in mounting dimensions (ISO/SAE flange standard), shaft end configuration (SAE spline/keyed), and performance characteristics, enabling direct replacement without hydraulic circuit or mounting bracket modification.

Application Areas

• Construction Machinery: Excavator swing drives, rotary drilling rig power heads, compactor travel drives

• Agricultural Machinery: Harvester travel drives, sprayer hydraulic systems, tractor hydraulic transmission

• Forestry Equipment: Forestry harvester saw motors, forwarder hydraulic drive systems

• Material Handling: Crane hoisting and slewing mechanisms, forklift hydraulic drives

• Mining Equipment: Underground transport vehicle drives, drilling rig hydraulic systems

• Industrial Hydraulic Systems: Machine tool hydraulic drives, test rigs, metallurgical equipment hydraulic transmission

• Energy & Marine: Wind power hydraulic systems, marine deck machinery hydraulic drives

• Railway & Municipal Equipment: Track maintenance equipment, municipal sweeper hydraulic drives

Expert Maintenance Tips

Pre-Installation Checks:

• Verify mounting flange conforms to ISO/SAE standard; mounting surface clean and free of burrs

• Inspect shaft end spline or keyed mating surface for wear or corrosion; apply appropriate grease

• The motor must be fully filled with hydraulic oil via the housing drain port prior to installation to prevent dry friction damage to piston/cylinder during startup

• Confirm RS or LS rotation direction matches system requirements

Operational Maintenance:

• Maintain hydraulic oil cleanliness to ISO 4406 20/18/13 or better; use pressure filters with ≤ 10 μm filtration accuracy

• Recommended fluid: mineral oil-based anti-wear hydraulic oil; optimum viscosity range 15 – 30 cSt

• Maintain fluid temperature within -40°C to +115°C; avoid overheating

• Periodically check housing drain line for unobstructed flow; return back pressure must not exceed allowable limits

• Periodically verify port flange connections are secure and seals are not aged

• In high-speed applications, consider installing Power Boost device to reduce mechanical losses by up to 15%

Troubleshooting Guide:

• Motor fails to rotate or speed abnormal: Check hydraulic system supply pressure; verify directional valve operation; check oil cleanliness

• Insufficient output torque: Confirm system pressure reaches rated value (450 bar continuous / 500 bar intermittent); inspect piston/cylinder and piston rings for wear

• Abnormal noise or vibration: Check housing oil fill level; verify suction line is unobstructed; check mounting bolt tightness

• External leakage: Inspect shaft seal for aging or damage; verify drain line back pressure is within allowable range

• Efficiency decrease at high speed: Inspect laminated piston ring wear; replace piston ring components if necessary