ZSU   [back]

Centerhole grinding machine
Workpiece weight up to 160 kg
Workpiece length up to 2500 mm
Centerholes 1 mm dia
up to 150 mm dia

The ZSU center hole grinder works
according to the method "Linear
grinding" and "plunge grinding".

Linear grinding
The workpiece is driven by tailstock
and is guided in a steady rest.
The grinding wheel grinds in linear
contact on the center hole. This method is used if the center has to be concentric to an outside diameter. The position of the center hole can be corrected in relation to the outside diameter. For example the workpiece is not straight.

Plunge grinding
Centerholes 1 mm dia up to 120 mm dia

The ZSU centre hole grinder works also according to the method "plunge grinding" and the workpiece is held by hand. This is quick and easy.

There are constant conditions with a
driven dressing wheel. In addition,
constant conditions for dressing exit
all the way down of the tip.
The grinding point dressed to true
geometric shape plunges into the
center hole and laps it round, coaxial
and with high surface quality while
in full contact.

Workingrange:
For workpieces, which must

1. not be concentric to the
   outside diametre.

2. not loose his position.

3. have a good roundness.

1. very small centers.

Accuracy:
Grinding accuracy as measured at the center hole is 1 µm and better.

Advantage:
Swivel of grinding head for ease of
unloading of heavy workpieces.
Tailstock travel course driven by motor.