Applications for Catep Multispeed Transmissions, Z-Series Spiral-Bevel Gearboxes & Planetary Epicyclic Drives

Wire Stranding and Forming Machine:  Double Twist Strander

Photograph compliments of Nextrom

1. Tandem Multispeed Transmissions

The 54-speed gearbox controls the lay on this machine.  Lay is defined as the length of twisted wire over which one complete twist occurs, or:

Lay (in) = Wire Speed (in/min) / Rotation Speed (rpm)

The ratio between the wire linear speed and rotational speed is provided by the multispeed transmission.  Since the ratios in the transmission follow a geometric progression (i.e. ratio step), 54 proportional lays are provided.

2. Z-Series Spiral-Bevel Gearboxes

Three spiral-bevel gearboxes bring the mechanical transmission to the capstan, which pulls the wire, and the two roll-stands where the wire is formed.  The large range of standard ratios and hollow bore configurations of the Z-Series insure the correct speed at each station as well as simplified mounting configurations.

3. Planetary Epicyclic Drives

Two SA differentials are used to trim (i.e. provide small speed corrections) the speed of the roll stands, thereby compensating for length changes in the product as it is formed.  An additional benefit of this system is that the roll-stand load is shared between the auxiliary "trim" motors and the main drive motor.  This means that the size of the main drive motor and all of the mechanical components are minimized.

To insure proper selection, please consult the factory.  If you have any questions regarding the information provided here or require more information, please call us at (800) 713-6170 or e-mail us. Our Sales and Engineering departments are ready to help you with your specific power transmission needs.