Plumbing Applications
Pipe Couplings
Multi-station rotary transfer reaming and tapping machine- Controlled by 8-axis PC-Based CNC system
Six station machine processes ½” though 2” couplings from tubing, including auto load with dual tubing feeder and cut-off saw; ream, face and chamfer; and tap.

Valves
Kaufman flexible CNC multi-station rotary transfer manufacturing system- Controlled by 27-axis ball screw CNC with B-axis pallets
Cast iron, brass and stainless steel butterfly valve bodies ranging from 2” to 6” diameter are machined on a six-station system. Bodies are precision drilled, tapped, seated, back chamfered, and finished bored using CNC U-axis controlled crossfeed head.
Pipe Fittings
- Multi-station rotary transfer drilling and tapping machine
- Controlled by CNC and enhanced diagnostic system
Union nuts, couplings and high-pressure welded fitting are machined in sizes ranging from 1/2”-14 NPT and 3-1/2” – 10 NPT at rates up to 1,350 parts per hour on the 1/2” fittings.

This Kaufman CNC Model KMC-1124 Reaming and Single Point Threading Machine includes eight two-jaw self-centering chuck assemblies positioned on four locations around the dial plate. Each of the three machining units featured dual heavy duty block type boring spindles mounted to independent rectangular hardened way-type slide assemblies and vertical columns. The machine processed a variety of cast Brass valve components in cycle times ranging from 12 to 14 seconds at two parts per cycle. The machine performed precision boring and single point threading operations utilizing CNC Drawbar actuated feed out heads. The machine featured Kaufman’s PC based CNC system controlling both Hydraulic Servo and ballscrew type units.

