News and Updates ...
October 2025
Site development making good progress
New extension steelwork in place
New Extension Construction progress
Components being tested for flaws with dye penetrant
New extension steelwork in place
New road, new roof !! The development work continues at Copeland and Craddock this week.
We are coming ever closer to newly refurbished equipment being installed to further widen our service offering.
We will be talking to new and existing customers in the coming weeks regarding larger diameter peeling, CNC lathe turning of shorter bars and something quite new to Copeland and Craddock - dye penetrant testing!
Dye penetrant testing (DPI) on a carbon steel bar involves applying a colored or fluorescent dye to the surface, which seeps into surface-breaking defects through capillary action. After cleaning off the excess dye, a developer is applied. The developer draws the penetrant out of the flaws, making them visible as colored lines or spots against the white developer background.
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September 2025
CNC Centreless Grinding
CNC Centreless Grinding in operation today
We can grind from 8mm to 60mm in H8 tolerance.
Get in touch for any enquiries 01260 279641
Centreless grinding is a precision machining process used to remove material from the outside diameter of cylindrical workpieces without using centers to hold the part. Instead, the workpiece is supported by a workrest blade and rotated between a grinding wheel and a regulating wheel. CNC (Computer Numerical Control) adds automation, precision, and programmability to the process.
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June 2025
Another busy day ...
Plenty of activity on site at Copeland & Craddock today Including;
1) Peeling large diameter 718.
2) Peeling 13 metre lengths.
3) Cutting large diameter Titanium and 1m lengths of peeled carbon steel
All this while installing our newly refurbished Reeler, the second such machine we have on site now, giving plenty of straightening capacity up to 80mm.
Bar peeling is a precision machining process used to remove the outer surface of hot-rolled or forged round bars, improving dimensional accuracy, surface finish, and straightness. The bar is rotated and advanced through a set of cutting tools arranged around its circumference, which peel away the outer layer in a continuous operation. CNC (Computer Numerical Control) provides consistent cutting depth, feed rate, and speed, ensuring precise tolerances and repeatable surface quality.
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January 2025
New additions ...
Lathe Turning at Copeland & Craddock
Lathe Turning at Copeland & Craddock
Lathe Turning at Copeland & Craddock
Lathe Turning at Copeland & Craddock
We have a few additions to our bar processing offering !!
We now offer lathe turning up to 400mm, our current maximum diameter for peeling is 210mm so this adds some useful additional capacity while we wait for our 250mm peeler to be refurbished.
We also offer grinding - we have two new machines in place ready to offer small diameter grinding up to 2" with higher diameter capacity to come in the future.
Lathe turning is a machining process where a cutting tool removes material from a rotating workpiece to produce precise cylindrical components. It’s ideal for achieving tight tolerances, smooth finishes, and consistent diameters on bars, shafts, and other round parts.
Turning, Peeling, Grinding ... what's the difference?
Turning shapes the material, peeling cleans and sizes it efficiently, and grinding perfects the finish and precision.
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