Fixed center multiple spindle heads can be used for drilling, tapping, and many other holemaking requirements.
The high speed head shown is used where high speeds and accuracy are required. (3000 to 8000 rpm)
High speeds create a major heat source where the seals contact the spindles. This heat source can be eliminated by the use of a stand pipe and slinger to keep the oil in the head.
A cartridge style gear pump is used to pump the oil because of its small size and ease of changeover.
The lead screw tap head shown allows for long service, accuracy and ease of changeover with design.
The design of the lead screw and nut allow for the entire spindle assembly to be removed and replaced for easy changeover.
Placement of the seal in the assembly keeps contaminants out, protecting the lead screw and preventing down time and replacement.
The spindle design also prevents jamming in either the full forward or full reverse positions.
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