The hollow shaft concept

• Examples of
control systems

- DIGIVEX Drive
- DIGIVEX Motion
- Flying shears
- Rotary knives
- Palletising
- Control-command
systems
- Electronic cams

• Examples of motors

- Synchronous
electrospindles
- Ball screw
direct coupling
- HXA Servomotors
- Motor with
built-in gearbox
- Hallow-shaft
concept
- Servomotor kits

3D picture

Traversing ball screw, fluid flow…the hollow shaft concept

A ball screw which traverses the
motor ?
How can fluid flow through the motor be achieved ?

Developed for special applications where standard motors are unsuitable, the hollow shaft concept is well adapted to short motors.
This original mechanical creation is possible due to our total mastery of the design and manufacture and provides a concrete solution to the most varied problems. .

The CD-ROM Industry
The CD-ROM is coated while rotating.
The Parvex motor drives the CD-ROM.
The CD-ROM is held by vacuum, the flow of air coming through the hollow shaft of the motor.

Linear pump
In this case the piston shaft of the pump is constituted of a ball screw.
The Parvex motor is fixed on the body of the pump and drives the nut in rotation.
The linear displacement of the screw is thus responsible for the motion of the piston and therefore the pumping.