Hydraulic expansion chuck BT 30 - 18 - 90Application: For mounting straight shank tools acc. DIN 1835 form A+B+E and DIN 6535 form HA+HB+HE (larger than dia. 20 mm only with reduction sleeve). Note: l1 = max. clamping depth l2 = max. length adjustment range Delivery: With wrench All holders are made of forged steel Specific, low warpage hardened Surface hardened HRC 58~60 Hardening depth 0,8mm~0,9mm Taper angle tolerance < AT 3 according to DIN 2080 Surface roughness Ra < 0,4 m Tensile

Hardening depth 0

Effective from low to high coolant pressures

Improves chip evacuation and decreases the risk for chip jamming

5 with h4-tolerance and Ø 6 – Ø 32 with h6-tolerance5

- Stainless steel 1

clamping depth l2 = max

- Especially suitable fore wire EDM

contact- and hot air shrink units

For mounting straight-shank tools and inclined flat according to DIN 1835 form E (Whistle Notch)

For mounting tools with Morse taper shank and tang according to DIN 228-1 form B

Precision coolant supply: Improves chip evacuation and decreases the risk for chip jamming

20 mm only with reduction sleeve)