Hydraulic expansion chuck SK 40 - 14 - 77Application: 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 Without 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 strength in

wrench and collets

Clamping positions: horizontal

Jaws with grip serrations und fine step for workpieces with max

Measuring contact points are designed to allow measurements near to the bottom of blind holes

All tool sizes can be combined

better chip evacuation

Clamping range 0

Non-rotating spindle

In NC machines (machines without automatic tool changers)

For tools with taper shanks DIN 69871 and JIS B 6339 (MAS-BT)

For mounting drill chucks

For mounting straight-shank tools with internal coolant