Hydraulic expansion chuck SK 50-20-82 DIN 69871 AD/B in wooden boxApplication: 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

For mounting straight-shank tools with lateral flat according to DIN 1835 form B (Weldon)

For sealing tools with internal cooling

For machines with rigid tapping

ADJRGA = Length adjustment range

Collets sealed with seal for IC

Only nominal size d can be clamped with sealing plug for internal cooling (applicable up to 21 bar) In order to achieve an optimum sealing the tool must be clamped on the complete length of the ground drill of the collet

For mounting tools with straight shanks

For mounting straight-shank tools in collet chucks DIN 6391

Application:

lockable in different positions

Coolant pressure up to max

which can cause high frictional forces on the thread flanks