OMSI PFT-PC4/3000 Transfer Case

The OMSI PFT-PC4/3000 is an intermediate split-shaft power transmission unit, commonly installed in industrial and municipal vehicles—especially sewer combination trucks, septic pumps, vacuum loaders, and wash-down or jet-truck chassis. It enables the vehicle’s drivetrain to power auxiliary equipment (pumps, blowers, compressors, etc.) using the driveshaft input while providing operator control over engagement and multiple output ports. What makes the PC4/3000 particularly useful is its design to minimize downtime, reduce operator effort, and provide flexibility with multiple output types.

Key Features

• Split shaft design: Provides power to auxiliary outputs without requiring full clutch disengagement; a more operator-friendly approach to PTO control.
• Oil-bath clutches: One or two clutches submerged in oil, allowing for smooth engagement of side or central outputs under load.
• Multiple output options: Mechanical, hydraulic, and pneumatic output shafts; side and/or central outputs depending on configuration.
• Control system: Often includes double-acting pneumatic cylinders (6-8 bar) for output control, with safety systems to maintain output status in case of air supply loss.
• Operator conveniences: Ability to engage side outputs while main shaft is rotating (depending on version), optional stationary vs in-motion engagement; optional direction of rotation settings.

Technical Specifications

• Max Continuous Torque (Main Drive): 21,000 Nm
• Max Intermittent Torque (Main Drive): 30,000 Nm
• Maximum Input Speed: 2,500 to 3,300 RPM (depending on version)
• Side Output Maximum Power: 110 kW per shaft
• Side Output Max Torque: 1,200 Nm
• Side Output Max RPM: ~2,000-2,500 RPM
• Central Output (Service Torque): Up to 400 Nm
• Central Output (Power): ~35 kW
• Available Drive Ratios (Side Outputs): Standard 1:1.27; special 1:1 versions; also other ratios available depending on configuration.
• Available Central Output Ratio: Up to ~1:1.62 depending on version; ratios ≥1.0 for some central outputs.
• Direction of Rotation: Typically opposite of engine output shaft rotation for certain outputs.
• Engagement Method: Pneumatic (double acting, ~6-8 bar) for main drive; side outputs may have mechanical or hydraulic clutch activation.
• Operational Modes: Side outputs / central outputs may be engaged stationary (standard), or in motion in special versions.
• Weight: Approx 330 lbs