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For heavy-duty applications that demand reliable clutch and brake performance, Logan's HPC Series clutches deliver maximum torque within a compact footprint. Similar in design to the Logan CH Series, the HPC Series is engineered to operate at higher actuation pressures, allowing for greater torque transfer in a smaller envelope—ideal for industries like marine, mining, and oil and gas.
How Logan HPC Clutches Work
Logan HPC clutches are powered by hydraulic or pneumatic pressure. When the cylinder is pressurized, the piston clamps and locks the friction and separator discs together, transferring torque through the clutch to the drive cup. When pressure is released, the release springs separate the discs, maintaining a running clearance and ensuring smooth, efficient operation.
Wet or Dry Operation for Versatile Applications
Logan HPC clutches are designed to work in both wet and dry environments, making them versatile across different applications. In wet operations, coolant oil can be applied as a splash, spray, or forced through the friction disc pack from an internal shaft passage, ensuring effective heat dissipation and longer component life.
Standard Specifications for HPC Series Clutches
The Logan HPC Series is available in ten sizes, accommodating a range of heavy-duty applications:
- Torque Ratings: From 145,000 lb-in (16,384 Nm) to 2,880,000 lb-in (325,424 Nm)
- Maximum Allowable Pressure: 360 psi (25 bar) for wet operation; 240 psi (16.5 bar) for dry operation
- Operating Speeds: Standard speeds range from 1 to 2200 RPM, with stronger release springs available for high-speed disengagement
For applications requiring even higher torque or actuation pressures, Logan offers modified standards to meet specific design requirements.
Key Features and Advantages of Logan HPC Series Clutches
- Maximum Torque in a Compact Design: The HPC Series provides high torque transmission within a minimal footprint, making it ideal for applications where space is limited.
- Hydraulic or Pneumatic Actuation: Available in air or hydraulic versions, these clutches offer fast engagement and quick release for reliable performance.
- Long-Wearing Components: Specially treated cylinder housing and splined surfaces increase durability and reduce wear, even in demanding environments.
- Self-Lubricating Seals: Durable, self-lubricating seals require no additional lubrication, reducing maintenance costs and downtime. They operate within a temperature range of -65°F to +300°F (-54°C to +149°C).
- ABS Type Approval: Logan HPC clutches are American Bureau of Shipping (ABS) type-approved, meeting the standards required for marine applications. Additional certifications like Lloyd’s and DNV are also available.
- Positive Mechanical Lock-Up for Emergencies: In emergency situations, a mechanical lock-up feature provides positive engagement, ensuring reliability when it’s needed most.
- Smooth Engagement: Sintered bronze friction material, operating in oil, enables a low static-to-dynamic torque ratio, resulting in smooth, high-energy performance.
Applications of Logan HPC Clutches
Logan HPC Series clutches are specifically designed to support high-torque applications in various industries:
- Marine Propulsion: HPC clutches are ideal for gearboxes and Azimuth Thrusters (Z-Drives), where they provide smooth, reliable engagement between the drive system and propellers. These compact clutches handle high torque loads, ensuring efficient power transfer in tugs and workboats.
- Marine Mooring Winches: Suitable for both conventional and render-recover style winches, Logan HPC clutches ensure dependable torque for marine mooring applications.
- Mine Hoisting Equipment and Overland Mining Conveyors: Built for durability, these clutches support heavy-duty mining operations.
- Oil and Gas Deepwater Draw Works: On offshore drilling platforms, HPC clutches provide the torque needed for controlling the hoisting and lowering of drill strings.
- Fan Drives: In high-torque, industrial fan applications, HPC clutches offer smooth engagement and long-lasting performance.
Typical Use Case: Azimuth Thrusters / Z-Drives
Logan HPC clutches are widely used in Azimuth Thrusters and Z-Drives on tugs and workboats. Designed for high torque in a compact space, these clutches provide smooth, reliable engagement, making them ideal for applications where power density is crucial. The multiple disc design maximizes friction surface area, ensuring efficient power transfer, minimized wear, and dependable performance, enhancing the longevity and efficiency of the vessel's propulsion system.
Ready to Get Started?
If you have immediate questions or are ready to dive into how Logan HPC clutches can benefit your operations, reach out to our sales team today! Our team is here to help you find the best solution for your heavy-duty clutch and brake needs.
