Mills CNC has recently supplied RWG (Repair & Overhauls) Ltd with two new DN Solutions CNC machine tools: a Puma VTR 1216M vertical turning lathe and a Puma 3100Y multi-tasking turning centre. Both equipped with FANUC controls, the machines arrived at RWG’s machine shop in Aberdeen in March 2024 and July 2024. They are the first DN Solutions machines installed at the company.

RWG is an international, OEM-approved business that provides repair, maintenance and overhaul services for Siemens industrial aero-derivative gas generators and Rolls-Royce marine gas turbines. These services, which all take place at RWG’s facilities in Aberdeen, start with the stripping down of a customer’s gas turbine or generator for cleaning and inspection prior to component repair and reassembly.

As part of a machine shop upgrade programme, the company is currently replacing older manual machines with new CNC models.

The investment in a DN Solutions VTR 1216M, which has replaced an older large-capacity manual borer, was made to re-machine and repair a wide spectrum of large turbine and generator parts that include engine casings, stator and rotor vanes, housings, shafts, seals, valves, and actuators.

“Since installation, the machine has performed well and is hitting non-negotiable, tight tolerances on the performance-critical parts we repair,” reports Angus Donald, RWG’s production supervisor. “Such has been the support and service from Mills during and after the purchase process, that we decided to place an order with them for a new Puma 3100Y.”

The Puma 3100Y – with its 12-inch chuck, 130 mm Y axis and 5000 rpm driven tooling capabilities – was acquired by RWG as part of larger manufacturing repair project to machine a series of complex, high-precision parts in relatively small volumes for a specific engine’s combustion system.

More information www.millscnc.co.uk