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For heavy-duty clutch and brake applications, Logan’s Type CH clutches are the ideal choice. Designed for demanding environments, these clutches offer both air and hydraulic actuation options, with friction disc packs that operate in either wet or dry conditions. Built with durability and efficiency in mind, Logan Type CH clutches are a versatile solution for industries ranging from marine propulsion to mining and oil drilling.
Key Features of Logan Type CH Clutches
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Wet or Dry Operation: Logan CH clutches can operate in either wet or dry environments. When used as a wet clutch, coolant oil can be applied through splash, spray, or forced through the friction disc pack from an internal shaft passage, ensuring effective heat dissipation.
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Efficient Mounting: The clutch hub is designed for shaft mounting, with a key-seated bore for secure attachment. Torque is transferred from the disc pack to a splined drive ring, ensuring efficient and reliable power transfer.
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Multiple Discs for Enhanced Torque Transfer: With a multiple-disc design, these clutches provide a large friction surface area, allowing for efficient torque transfer and longer component life under heavy-duty conditions. This design reduces wear, lowers maintenance needs, and ensures long-term reliability, making the CH series a compact and powerful addition to any setup.
Standard Specifications
Logan Type CH clutches are available in seven sizes, each designed to meet a range of industrial needs:
- Torque Ratings: From 49,000 lb-in (5,532 Nm) to 1,280,000 lb-in (144,000 Nm)
- Maximum Allowable Pressure: 200 psi (13.8 bar) for wet operation; 120 psi (8.3 bar) for dry operation
- Operating Speeds: Standard speeds range from 1 to 2200 RPM, with stronger release springs available for applications requiring disengagement at higher speeds
For specialized needs, Logan offers modifications to the standard design, including higher torque ranges, actuation pressures, and stronger release springs. Contact us for more details on custom configurations.
Key Advantages
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Certified for Marine Applications: Logan Type CH clutches are American Bureau of Shipping (ABS) type-approved, making them suitable for marine applications that require independent surveys. Additional certifications, such as Lloyd’s and DNV, are also available for added assurance.
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Self-Lubricating Seals: The long-wearing, self-lubricating seals minimize premature twisting failures and do not require lubrication, helping to reduce maintenance costs and downtime. Standard seals can operate within a temperature range of -65°F to +300°F (-54°C to +149°C).
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Corrosion-Resistant Components: Treated cylinder housing and splined surfaces increase corrosion resistance, ensuring longevity and performance in harsh conditions.
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Emergency Mechanical Lock-Up: In case of an emergency, the clutch features a positive mechanical lock-up, allowing continued operation when necessary.
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Smooth Engagement: Logan’s proprietary friction material operates in oil, providing a low static-to-dynamic torque ratio. This results in smooth engagement and high-energy performance, even in demanding applications.
Typical Applications of Logan Type CH Clutches
Logan Type CH clutches are built to handle a variety of applications, including:
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Marine Propulsion (Gearboxes and Azimuth Thrusters): These clutches are widely used in tug and workboat gearboxes, where high torque transmission in a compact design is crucial. For Azimuth Thrusters or Z-Drives, the Type CH clutch offers smooth, reliable engagement between the drive system and the propeller, handling high torque loads in limited space.
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Draw Works on Marine Oil Drilling Platforms: In deepwater drilling, Logan CH clutches are essential for controlling the hoisting and lowering of the drill string. The clutches’ high torque capacity and compact design make them perfect for the tight spaces on offshore drilling rigs.
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Mining Equipment: Logan CH clutches are well-suited for overland mining conveyors and mine hoisting equipment, providing dependable performance under heavy-duty conditions.
Explore Logan Type CH Clutches for Your Application
For immediate assistance or to dive deeper into how Logan Type CH clutches can benefit your application, feel free to talk to our sales team. Our team is ready to help you find the best solution for your heavy-duty clutch and brake needs.
