Каталог оснастка Dormer Pramet 2016 - страница 264

OPERATING AND USER INSTRUCTIONS FOR HYDRAULIC EXPANSION CHUCKS

To ensure a flawless function of the hydraulic expansion chuck, please

observe the following instructions:

Usage of straight shank tools according to DIN 1835 and DIN 6535 form

(HA) and B (HB) up to Ø 20 mm shaft diameter with tolerance h , precision

6 ground Ra = 0.3. min

Shafts according to DIN 6535 form HE (Whistle Notch) can only be

clamped by using reduction sleeves. All hydraulic expansion chucks are

standard balanced to G 6.3 15,000 rev/min.

Clamping and unclamping the tool

1. Clean the holding fixture bore and the tool shaft of grease and dirt.

Insert tools up to the end stop. Observe the minimum clamping depth

and the length adjustment range.

2. Clamp the shaft by turning the clamping screw up to the end stop. The

tool is clamped. To avoid breaking the hydraulic sleeve, do not carry out

clamping action without a tool.

3. To unclamp the tool, turn the screw approx. 5 to 6 revs. counter clock-

wise and remove the tool.

Note: Never clamp without a clamped tool in place!

1 2

DIN 1835 A/DIN 6535 HA DIN 1835 B/DIN 6535 HB up to Ø 20 mm

Cleaning

Attention should be paid to the cleanliness of the holding fixture bore

and the tool shaft.

Temperature

Optimal temperature range between 10 – 50°. Do not use with tempera-

tures above 80°.

Storage

Store the hydraulic expansion chuck untensioned, cleaned and lightly oiled.

Clamping shafts

Clamp only tool shafts conforming to the requirements of DIN 1835

form A and form B (up to 20 mm).

Torque