Precision Manufacturing · Cobwill Engineering

Precision-Engineered
Mechanical Pins & Bushings

Manufactured to micron-level accuracy — engineered to minimize downtime, extend component life, and keep heavy machinery in service where it belongs: on site.

±5μm
Tolerances
24/7
Breakdown Response
15+
Years Experience
Precision-machined mechanical pins and bronze bushings
Case-hardened 4140 / 4340
IN STOCK

Trusted by industry leaders

Kelvin PowerA1 RiggingGeotekGothic ConstructionRedPath MiningCombined Private InvestigationBosun

Why Cobwill

Built to survive the job site.

Three commitments we apply to every component that leaves our shop floor.

Custom Tolerances

Bespoke pins and bushings machined to your exact drawing — down to ±5μm on critical diameters.

Hardened Elements

Case hardening, induction hardening and nitriding for extended service life under shock loads.

Material Versatility

4140, 4340, EN36, stainless, phosphor bronze, brass and self-lubricating alloys — one supplier.

Capabilities & Coverage

A full machine shop, dedicated to a single family of parts.

We don't dabble. Pins and bushings are what we do — and every piece of equipment on the shop floor is here for that reason.

Industries Served

Mining
Construction
Agriculture
  • 01ID / OD Cylindrical Grinding
  • 02CNC Turning & Milling
  • 03Case Hardening & Tempering
  • 04Keyway & Cross-Hole Machining
  • 05Surface Finishing to Ra 0.4
  • 06Reverse Engineering from Samples

Frequently Asked

Answers before you ask.

Talk to an Engineer

Send drawings.
Get a real quote back.

No sales funnels. Your enquiry lands in our workshop inbox and a machinist responds — usually within a few hours.

Breakdown Services Available 24/7
Phone
+27 (0)11 555 0142
Email
cobwillengineering@ymail.com
Workshop
18 Foundry Road, Wadeville, Germiston 1428

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