Hydraulic expansion chuck SK 50 - 18 - 110

Hydraulic expansion chuck SK 50 - 18 - 110Application: 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 and inclined flat according to DIN 1835 form E (Whistle Notch)

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

Effective from low to high coolant pressures

In NC machines (machines without automatic tool changers)

which can cause high frictional forces on the thread flanks

For sealing tools with internal cooling in collet chucks

Collets sealed for high pressure cooling 120 bar

Application:

All functional surfaces fine machined

Sealing capacity up to 80 bar

All holders are made of forged steel

For internal machining with boring bars