Production Processes - Precision Engineered Components

LoneStar manufacture and supply a wide range of high quality precision engineered components to global OEMs and End Users across the Oil, Gas and Subsea industries.  

Located in Leeds, UK - LoneStar Leeds is the Group's manufacturing facility specialising in the bespoke manufacture of products including valve gates, stems, seats and actuator components.

Operated by a team of skilled, experienced engineers LoneStar Leeds employs the very latest manufacturing technology to provide the highest levels of quality, precision and efficiency.

CNC Milling

13 no CNC machining centres 2300mm x 800mm maximum capacity Components up to 1000kg Vertical, horizontal and twin pallet machines

CNC Turning

13 no CNC machining centres 2300mm x 800mm maximum capacity Components up to 1000kg Vertical, horizontal and twin pallet machines

Spark Wire Eroding

Complex, contoured shapes easily produced Allows machining of exotic materials such as super alloys, tungsten carbide, titanium etc Dimensional consistency throughout batches Elimination of heat distortion allowing hardened components to be machined

Surface Grinding

Surface grinding generates the super finish necessary prior to lapping or carbide coating Cylindrical grinding provides not only the required finish on components manufactured from most base metals but also on components before and after hard chrome plating Rotary grinding ensures highly efficient stock removal

Honing

A cost-effective precision honing service State of the art machine technology Faster production turnaround supplying components COMPLETE removal.

Lapping

Stock removal controlled to within a few microns Flatness to 1 light band Surface finishes, using either conventional abrasives or diamond super abrasives, to obtain leak-proof mating without gasketing