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Large-Scale Spur Ring Gear Cutting

THE PROBLEM

A client operating in the energy sector required a highly specialised component for a winch manufacturing project: a large spur ring gear machined to exacting tolerances. The part in question — a 157-tooth, 14 module spur ring gear with an outer diameter of 2,226 mm — sits well outside the capability range of most standard machine shops.

At this scale, sourcing a competent supplier with the right equipment, the technical knowledge, and a competitive lead time becomes a significant procurement challenge. Most gear-cutting operations simply do not have the capacity to handle components exceeding two metres in diameter. The client needed a reliable partner who could produce this component to precision engineering standards, on schedule, and at a price that made commercial sense.

THE SOLUTION

Lamond & Murray DEXIS deployed their No. 27 Sunderland gear planer — one of the most capable machines in their fleet — to take on the gear cutting work. This specialist planer is specifically suited to large-format, high-module gear production, making it the ideal tool for the client’s requirement.

The team executed a full gear cut on the spur ring gear, machining all 157 teeth to the correct 14 module profile across the 2,226 mm outer diameter. This required meticulous setup, careful tooling selection, and the kind of precision process control that only comes from decades of experience in heavy-duty gear manufacturing.

The project was completed within a 12-week timeframe — a lead time the client found not only achievable but commercially attractive when compared to alternative suppliers.

THE RESULT

The completed spur ring gear was delivered to specification, meeting all dimensional and profile requirements for the client’s winch assembly. The project demonstrated Lamond & Murray DEXIS’s ability to handle complex, large-diameter gear cutting that competitors simply cannot accommodate.

The clearest measure of success? The client returned. Repeat orders for this part have followed, confirming not just that the component met quality expectations, but that the overall experience — from pricing and communication through to delivery — gave the client every reason to come back.

WHY LAMOND & MURRAY DEXIS

The client chose LAMOND AND MURRAY DEXIS for a straightforward combination of reasons that are often difficult to find in a single supplier, particularly for oversized, specialist components
Unique Large format capability – Ability to gear cut components exceeding 2 metres in diameter — a rare capability that sets Lamond & Murray DEXIS apart from the majority of the market.

Competitive Pricing – Pricing that made commercial sense for the project, offering genuine value without compromising on quality or precision.
Attractive Lead time – A 12-week turnaround that aligned with the client’s project schedule — reliable, realistic, and professionally managed from first enquiry to delivery.
Proven Track Record – The relationship didn’t end at first delivery. Repeat orders speak louder than any specification sheet — the client came back because the experience earned their confidence.

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