Close-up of a metalworking lathe cutting tool shaping a shiny, cylindrical metal piece with grooves. The tool is in contact with the metal, creating precise, smooth surfaces.

Turning & Milling

At Llewellin’s Gears we offer high precision turning and milling services tailored for demanding industries and complex part geometries. Whether you’re producing prototypes or small to medium runs, our experienced machinists deliver accuracy, repeatability, and quality you can rely on.

We provide precision manual and CNC turning for a wide range of components, from gear blanks, shafts and bushings to custom cylindrical components.

A metal lathe cutting tool shapes a shiny cylindrical metal workpiece, producing spiraled metal shavings during the machining process.

Turning & Milling Capabilities

External & Internal Turning
Facing & Boring
Thread Cutting (Metric, UNC, Custom)
Grooving & Undercutting

Materials

Carbon & Alloy Steels.
Stainless Steel (304, 316, etc.)
Aluminium & Brass.
Plastics (Delrin, Nylon, PTFE)
Titanium & Specialty Alloys

Methods

Our milling services are ideal for flat and angular surfaces. Skilled technicians ensure every part meets dimensional and surface finish requirements.

Slotting, Pocketing & Profiling.
Drilling & Tapping.
Surface & Contour Milling.
Hole Patterns & Custom Features.

A CNC milling machine is cutting a detailed metal mold, with coolant hoses and metal shavings visible around the work area in an industrial setting.

Benefits

High precision and repeatability across complex geometries
Capability to produce both simple and intricate cylindrical and prismatic parts
Efficient material removal for faster lead times and reduced machining costs
Versatility in handling a wide range of metals, alloys, and engineering plastics
Enhanced surface finishes to meet tight tolerance and aesthetic requirements

A close-up view of stacked shiny metal rings or cylindrical components with smooth, reflective surfaces, likely used in industrial or mechanical applications.

Quality Assurance

All parts undergo thorough inspection using precision gauges and documented processes. Our operations follow a strict ISO 9001:2015-compliant quality management system to ensure consistent results every time.

Other Capabilities

Broaching

Llewellin’s Machine Company Ltd excels in broaching, a precise machining process used to cut complex profiles, keyways and splines in gears and components. Our state-of-the-art horizontal and vertical broaching machines adhere to ISO 9001 standards, ensuring tight tolerances and exceptional finish quality.

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Gear Cutting

Established in 1883, Llewellin’s has been at the forefront of Britain’s gear manufacturing industry for over a century.

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Gear Grinding

Llewellin’s specialises in precision gear grinding, a vital process in the manufacture and finishing of gears for optimal performance.

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Gearbox Refurbishment

At Llewellin’s, we pride ourselves on being a leader in the design, manufacture, and refurbishment of precision gears, gearboxes, and transmission systems.

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Grinding

Llewellin’s Machine Company Ltd offers advanced grinding capabilities using state-of-the-art equipment and techniques. Our precision engineers guarantee all work adheres to stringent industry standards such as ISO 9001 and AS9100, delivering exceptional accuracy and surface finishes for diverse applications. Encompassing surface grinding, cylindrical grinding and centreless grinding, said capabilities are carefully optimised to achieve micron-level tolerances (±0.001 mm) and impeccable finishes. We also offer gear grinding, which you can learn about on its own dedicated page.

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Crane Winch Refurbishment

At Llewellin’s, we combine over a century of expertise in the design, manufacture, and maintenance of offshore winches and gearboxes.

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Reverse Engineering

Llewellin’s reverse engineering capability empowers clients to replicate and enhance legacy components, particularly when original designs or tooling are unavailable. Using advanced metrology equipment, including coordinate measuring machines (CMMs) compliant with ISO 10360-2 standards, we create precise 3D models of existing components.

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Slotting

Llewellin’s slotting capabilities enable precision machining for internal keyways, grooves and slots in gears, pulleys and other critical components. Using high-precision vertical slotting machines, we meet tight tolerances in compliance with BS ISO 286 standards.

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Spline Cutting

Llewellin’s are proud to have become recognised as leaders in precision spline cutting and gear manufacturing since first forming back in 1883.

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Tooth Rounding

Llewellin’s tooth rounding capabilities ensure gears meet stringent performance and durability standards, the kinds required in industries such as aerospace, rail and renewable energy.

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Wire Erosion

Llewellin’s Machine Company Ltd is highly proficient in the science of wire erosion, a capability offering unparalleled precision in machining intricate geometries and fine tolerances.

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A vintage yellow and black open-top car with tufted black leather seats, brass headlamps, and large spoked wheels, displayed indoors among other classic vehicles.

Provide a first class service from a long standing professional company run by experienced and proper people. Many thanks for the parts remade for my vintage Peugeot Bebe.