CH Series Clutches

Type CH Clutches

Type CH clutches are designed specifically for heavy duty clutch and brake applications and can be air or hydraulically actuated.

The friction disc packs are suitable for either wet or dry operation. Actuation is accomplished through internal shaft and clutch passages. When used as a wet clutch, coolant oil may be applied as a splash or spray or forced through the friction disc pack from an internal shaft passage. The clutch hub is bored and keyseated for shaft mounting. Torque is transferred from the disc pack to a splined drive ring.

CH Series Main propulsion for high speed, medium and heavy duty gear drives

Typical Z-Drive equipped with Logan 1250

A cut away view of typical 5000 HP continental emsco

View of deepwater enterprise drilling rig, equipped with 3 logan ch clutches in its drawworks

CH clutch mounts between motor and winch

Logan CH series clutches intalled on a workboat mooring winch

hydraulic clutch / multiple disc hydraulic clutch / industrial hydraulic clutch / clutch for Azimuth thruster / clutch for ulstein aquamaster z-drive

Standard Specifications:

Type CH clutches are available in seven sizes with torque ratings from 49,000 lb-in (5532 Nm) to 1,280,000 lb-in (144,000 Nm).
Maximum allowable pressure is 200 psi (13,8 bar) for wet operation and 120 psi (8,3 bar) for dry operation.
Standard operating speeds are from 1 to 2200 RPM.
Stronger release springs are available for disengagement at higher speeds.

Modified Standards Available

Higher torque ranges, actuation pressures, and stronger release springs are available in our HPC series clutches to meet customer’s specific design requirements.

Advantages:

American Bureau of Shipping (ABS) Type Approval

Survey society approved for marine applications requiring independent survey. Other classification society certifications such as Lloyd’s and DNV are also available on a project basis.

Self Lubricating Seals

Long-wearing, self-lubricating seals minimize premature twisting failure and require no lubrication, which decreases maintenance costs and downtime. Temperature ranges for standard seals range from -65°F to +300°F (-54°C to +149°C).

Long Wearing Components:

The cylinder housing and all splined surfaces are specially treated to minimize wear and increase corrosion resistance.

Positive Mechanical Lock-Up “Come Home’’ Feature:

Provides positive engagement for emergency operation.

Smooth Engagement:

Sintered Bronze Friction Material, operating in oil, provides a low static-to-dynamic torque ratio for smooth, long-lasting, high-energy performance.

CH Series Products

CH Series Typical Applications

Ports worldwide are requiring Tugs and Escort Vessels to handle larger ships within smaller, less maneuverable areas. Logan CH Series clutches are ideal for stern drive tugs and work boats that require high torque transmission from a multiple disc wet or dry clutch - within a small envelope.

CH Series Description