Technical Information

Technical Information
Technical Information
7/24 ISO Taper Spindle Connection
Steep Taper V-Flange
Taper Size
Taper size should be chosen with realistic considerations. When selecting cutting
parameters, keep in mind that a machine with a 30 taper spindle will not achieve
the same heavy cuts or use cutters as large those on a 50 taper machine.
Pull-Back System
When troubleshooting a problem, assume that the toolholder is at fault is not
the correct course of action. The spring pack, drawbar, gripper, and retention
knob are major components for the successful operation of a machine tool
because wear or breakage of these parts is a major concern.
• Spring pack — Can become weak or out of adjustment. This can cause
chatter during a milling operation, which causes damage to the adapter taper,
spindle taper, cutter, or workpiece.
• Gripper fingers — If worn, they may not grip the retention knob correctly,
enabling the adapter to move, resulting in chatter and damage to the adapter.
• Retention knob — A worn or incorrect retention knob will not enable proper
gripping for pull back on the taper. This is a very serious safety hazard due to
the movement of the adapter. Using an improper knob may result in a lack of
any detectable gripping force.
Steep taper Form B coolant
Form B Coolant
Spindles are now running at higher rates — quickly burning seals, making it
difficult to seal coolant as it passes through the drawbar. One option is to direct
the coolant around the spindle bearings and enter through the spindle face
and toolholder flange.
M18 www.kennametal.com