Three large industrial rope winches with thick ropes wound around them are mounted on the deck of a ship. The winches have gray bodies with red accents and are positioned near the ship’s railing.

Crane Winch Refurbishment

At Llewellin’s Gears, we specialise in the refurbishment and overhaul of crane winches, restoring them to peak operating condition. Whether it’s for overhead cranes, hoisting systems, or mobile cranes, we help extend equipment life, improve performance, and minimise costly downtime. We also work closely with Original Equipment Manufacturers (OEMs) to ensure repairs meet or exceed the original design intent.

A close-up of a red marine winch with black steel cable on a ship’s deck, with the blue ocean visible in the background.

Crane Winch Refurbishment Capabilities

We are proud to support and refurbish winches and gear-driven components for equipment from top global manufacturers.

Zollern (OEM Approved)
Bucyrus-Erie
Clarke Chapman
National Crane
Liebherr
Siebenhaar Antriebstechnik
Hamworthy
David Brown
Bosch Rexroth
O&K
Lohmann + Stolterfoht
Bonfigioli
Stiebel
Flender
Dana Brevini

Our expertise with these brands ensures that each refurbishment adheres to the original specifications or is upgraded for better performance and reliability.

Methods

Full Disassembly & Detailed Inspection.
Cleaning, Crack Detection & Wear Analysis.
Replacement or Repair of Worn Gears, Shafts & Drums.
Precision gear cutting or grinding where required.
Bearing & Seal Replacement.
Surface Treatment & Corrosion Protection.
Reassembly & Functional Testing.
Reverse Engineering Where Required.

Why Choose Llewellin’s Gears for Winch Refurbishment?

Over 40 Years of Precision Engineering Experience.
In-house Gear Manufacturing & Repair Capability.
Trusted Partner to Original Equipment Manufacturers (OEMs).
ISO 9001:2015 Certified Processes.
Fast Turnaround & Emergency Repair Options.
Obsolete Parts Reverse Engineered & Replaced.

A close-up view of a ship's anchor windlass system with two large chains and covered winches on the deck, with the ocean and part of the ship's structure visible in the background.

What is Crane Winch Refurbishment?

Crane winch refurbishment involves the disassembly, inspection, repair, and reassembly of mechanical and drive components. This process addresses wear, damage, or fatigue that builds up over years of operation. Our comprehensive service includes replacing or repairing gears, shafts, drums, brake systems and bearings—returning your winch to safe, reliable service.

Close-up of a metal winch with tightly wound steel cable on a spool, next to a large, rusted, toothed gear, with a blurred background of colorful, checkered patterns.

Quality Assurance

Each winch undergoes detailed dimensional inspection and functional verification as part of our ISO 9001:2015 certified quality system. We ensure critical tolerances, alignment, and load performance meet or exceed original design standards.

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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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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Turning & Milling

Our turning and milling capabilities allow us to produce high-precision components for UK clients positioned across a diverse range of sectors, including defence, aerospace and mining.

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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.