Page 219 - UNION

part. PRODUcTs INFORMATION part.
C C

chuck chuck

1. Apply Tools Basic plan of HydraUlic expansion cHUck
Endmill, Drill, Reamer,
High accuracy tools, etc. 10mm (max)
Screw to fix piston Hydraulic medium

2. high roundness within 3µm.
Fine roundness assures longer tool life.

Piston to compress
HyScrew to adjust tool length

3. Over limit bore size, various size of Advantages of hydraulic Expansion chuck Advantages of collet
collet can be applied.
- High T.I.R. accuracy and repeatability of ≤3µm guarantee - Collets can save costs by clamping with variety of shank
to have a precise interference between tool cutting edge diameter.
and workpeice, rendering less tool wear.
4. Easy to clamp and unclamp - Shanks with recesses may also be clamped by using a
with a T-wrench. - Balance (option) collet.
Good balance of Hydraulic Chuck enables fine working
under high speed and safety.

5. Good for high speed. - The advanced system of Hydraulic Chuck completely
Even under high speed, it works very fast prevents penetration of oil, grease, coolant or chips.
without vibration and makes sure of fine
- Excellent output is expected when clamping with straight
process and safety.
cylindrical shanks.

6. coolant System.
Coolant can be supplied to the center through
internal and external shank.
DIN69871 AD+B type.

4 union Materials cuttinG tools 5