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Our purpose-built CNC engineering workshop allows us to deliver precision CNC milling, turning and cylindrical grinding services, supporting everything from one-off bespoke components to small and larger production runs.
Boretech also continues to provide specialist motorcycle engineering services, including crankshaft regrinding, cylinder head reworking, rebores and cylinder re-sleeving. Combining modern CNC technology with decades of engineering experience, we ensure accuracy, reliability and exceptional quality across every project.
We offer a full reboring and cylinder resleeving service for motorcycles, cars and commercial engines. Using precision machining equipment, we restore worn or damaged cylinders to the correct tolerances, improving engine performance, reliability and longevity.
Cylinder head refacing is a precision machining process used to restore the flatness and surface finish of an engine’s cylinder head. Over time, heat and stress can cause the head to warp or develop imperfections, which may lead to poor sealing and engine performance issues.
Using specialist machining equipment, the cylinder head surface is carefully machined to remove minimal material and return it to the correct specification. This ensures a proper seal with the head gasket, helping to restore engine compression, reliability and efficiency.
Valve and valve seat refacing is a precision process used to restore the sealing surfaces between the engine valves and their seats. Over time, wear, carbon build-up and heat can cause these surfaces to deteriorate, leading to poor compression and reduced engine performance.
Using specialist equipment, both the valves and valve seats are carefully machined to restore the correct angles and ensure a precise seal. This improves combustion efficiency, engine reliability and overall performance.
Valve guide fitting is an important part of cylinder head reconditioning, ensuring that engine valves operate smoothly and remain correctly aligned within the cylinder head. Over time, valve guides can wear, leading to excessive valve movement, oil consumption and reduced engine performance.
During the process, worn valve guides are carefully removed and replaced with new guides that are precisely fitted and machined to the correct tolerances. This restores accurate valve alignment, improves sealing and helps ensure reliable engine operation.
We provide precision crankshaft regrinding services for motorcycle, car and commercial engines. Over time, crankshaft journals can become worn or damaged, affecting engine performance and reliability.
Using specialist grinding equipment, the crankshaft journals are carefully reground to restore the correct dimensions and surface finish. This process ensures proper bearing clearances, smooth engine operation and extended engine life.
We offer specialist motorcycle crankshaft rebuilding services to restore worn or damaged crank assemblies to full working condition. Over time, crankshafts can suffer from wear in the bearings, big ends and crank pins, which can affect engine performance and reliability.
During the rebuilding process, the crankshaft is fully dismantled, inspected and rebuilt using precision components where required. The assembly is then carefully aligned and trued to ensure correct tolerances and smooth engine operation.
CNC turning is used to manufacture cylindrical components by rotating the workpiece while precision cutting tools shape the material. This process is particularly suited to producing shafts, bushes, threaded components and other round parts with excellent accuracy and repeatability.
CNC milling is a precision machining process that uses computer-controlled cutting tools to remove material and produce complex shapes and components. It is ideal for manufacturing accurate parts with tight tolerances, from one-off prototypes to batch production runs, across a wide range of metals and engineering materials.
Cylindrical grinding is a finishing process used to achieve extremely precise diameters and high-quality surface finishes on round components. It is commonly used for shafts, spindles and other precision parts where tight tolerances and smooth finishes are essential.
Surface grinding is used to produce smooth, flat surfaces with high levels of accuracy. By using a rotating abrasive wheel, the process removes very small amounts of material to achieve precise dimensions and a fine surface finish, making it ideal for precision engineering components.
Plasma cutting is a fast and efficient method for cutting electrically conductive metals including steel, stainless steel and aluminium. Using a high-temperature plasma arc, the process quickly melts and removes material to produce accurate cuts and complex shapes. The result is a clean cut edge that typically requires only minimal finishing, making plasma cutting ideal for fabrication work, structural components and custom metal parts.
Vapour blasting, also known as wet blasting or aqua blasting, is a cleaning and surface finishing process that uses a mixture of water, fine abrasive media and compressed air. The slurry is propelled at the component to gently remove dirt, corrosion and old coatings while leaving a smooth, uniform surface finish.
This process is particularly popular for engine components, aluminium parts and motorcycle restorations, as it cleans effectively without aggressively removing material. Vapour blasting leaves a satin-like finish that enhances the appearance of components while helping to close the surface of the metal, reducing the likelihood of further contamination.