logo

Building Oil Shear Clutches & Brakes
since 1969
Call Today 800-829-3244

Force Control Industries, Inc.
3660 Dixie Highway
Fairfield, Ohio 45014 USA
Phone 513-868-0900 | Fax 513-868-2105

eCatalog/eManuals Industry Solutions Cost Comparison

Posidyne Clutch Brakes Utilize Several Actuation Logics Designed For Specific Applications

Posidyne-ActuationPosidyne Clutch Brake Logic is the Interaction of Clutch and/or Brake Actuation Pressure and Spring Pressure.

Posidyne clutch brakes are designed with a clutch and brake stack on either side of a centrally located piston. The clutch connects to the input to drive the output shaft, the brake connects to the housing to enable stopping the output shaft. To operate the clutch brake the piston is moved to the clutch side or brake side putting pressure on the corresponding friction stack causing acceleration or deceleration.

Because not all applications are the same there are 7 logic types to choose from. Some provide spring set braking for safety on vertical loads, some are for the most precise control, and some allow a neutral position enabling the drive to be rotated freely. This combination of pressure set and spring set is called logic type and is identified as S, SA, B, C, SCP, and P.

Each is the best choice for particular types of applications. The following attempts to help identify the right logic for your application.

 

P-Logic

Air set clutch / Air set brake / No springs

Clutch – The clutch is actuated with air or hydraulic pressure. The torque is related to the pressure applied.

Brake – The brake is actuated with air or hydraulic pressure. The torque is related to the pressure applied.

Note:  Both the clutch and brake are only engaged when pressure is applied.

Caution: The drive could start up with some clutch torque depending the position of the piston when shut down.

Example: Horizontal indexing belt conveyor and other applications where the torque control range is critical and/or very high cycle rates are required.

P-Logic 

S-Logic

Pressure set clutch / Light spring set brake with pressure assist

Clutch – The clutch is actuated with air or hydraulic pressure. The torque is related to the pressure applied.

Brake – Light springs will engage the brake when clutch pressure is released to avoid clutch engagement when starting the drive. Additional air or hydraulic pressure can be applied to increase the brake torque to the desired torque.

Example: Horizontal conveyors or applications where maximum control of clutch and brake torque is required.

S-Logic 

SA-Logic

(Change to D) Logic - Air set clutch / Medium spring set brake with air assist

Clutch – The clutch is actuated with air or hydraulic pressure. The torque is related to the pressure applied.

Brake – Medium springs will engage the brake when clutch pressure is released. This spring applied brake can be used to restrict vertical loads. Additional air or hydraulic pressure can be applied to increase the brake torque to the desired operating torque.

Example: Vertical conveyors or applications where brake torque is required with loss of power while still maintaining control for normal operation.

SA-Logic 

A-Logic

Air set clutch / Medium spring set brake

Clutch – The clutch is actuated with air or hydraulic pressure. The torque is related to the pressure applied.

Brake – Medium spring set brake will engage when clutch pressure is released. This spring applied brake can be used to restrict vertical loads or as a holding brake.

Example: Used on application that require a spring set brake and do not want the ability of the operator to increase the brake torque excessively.

A-Logic 

B-Logic

Pressure set clutch / Heavy spring set brake

Clutch – The clutch is actuated with air or hydraulic pressure. The torque is related to the pressure applied.

Brake – Heavy springs will engage the brake when clutch pressure is released. There is no additional air or hydraulic pressure.

Note: For lifting or vertical applications where spring set safety is desired and adjustable brake torque is not required. Often used where just a holding brake is required.

Caution: The heavy spring set brake must be sized carefully as no adjustment is available. Notice also the heavy spring reduces the torque available to the clutch.

Example: Indexing cam operated dial table. The cam profile will stop the dial table. The Posidyne Brake only stops the drive train. A or B -Logic (Medium/Heavy spring set only brake) will not allow operator to increase brake torque beyond a safe level, which could damage the cam and cam followers.

B-Logic 

C-Logic

Pressure set clutch / No brake

Clutch – The clutch is actuated with air or hydraulic pressure. The torque is related to the pressure applied.

Brake – There is no brake.

Example: Pump drive where no brake is required.

C-Logic 

SCP-Logic

Spring centered piston / Air set clutch / Air set brake

Clutch – The clutch is actuated with air or hydraulic pressure. The torque is related to the pressure applied.

Brake – The brake is actuated with air or hydraulic pressure. The torque is related to the pressure applied.

Note: Springs are located on both sides of the piston to dis-engage both the clutch and brake when neither is actuated. This allows the output shaft to be rotated manually or through another drive.

Example: Applications include a lathe, where the chuck must be manually rotated to insert or remove the part. Also a secondary drive that is connected but needs to operate independently.

SCP-Logic 

True Cost to Own Comparison Calculator

Download the
True Cost to Own Comparison Calculator
Posidyne Oil Shear Clutch Brakes last so much longer than the popular dry friction inexpensive clutch brakes it is sometimes hard to determine how much savings can be realized.

Search Site

Oil Shear Technology
Is The Difference!

oilsheartechnology

Learn More

ccs

FCII-Customer

creative suite 6 education license where can i buy autocad lt 2017 mac os