C.S. Simmons Engineering
Cs Simmons Engineering Ltd, Mill Road, Radstock, BA3 5TX
About
C.S. Simmons Engineering Limited, a family-run UK contract manufacturer established in 1976 and based in Radstock, Somerset, specialises in precision CNC machining of bespoke, high-quality components, capable of handling large parts up to 3 metres and 1.2 cubic metres in volume, from single prototypes to 100-off batches. Their extensive capabilities include complex 5-axis CNC machining, reverse engineering, casting machining, and tooling development, with expertise in high-performance superalloys like Inconel, Hastelloy, and Monel, alongside traditional metals and castings, and they offer ASTM International compliant welding. Serving demanding sectors such as Oil & Gas, Rail, Defence, Renewable Energy, and Chemical Testing, the BS EN ISO 9001:2015 certified company prides itself on fast turnaround times and competitive quotes, supported by recent investments in advanced machinery and sophisticated inspection equipment.
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C.S. Simmons Engineering Limited is a well-established, family-run UK contract manufacturer based in Radstock, Somerset, with nearly 50 years of experience since its founding in 1976. They specialise in the precision CNC machining of bespoke, high-quality components, capable of handling large parts up to 3 metres in length and 1.2 cubic metres in volume, with batch sizes ranging from single prototypes to 100 off.
Their extensive capabilities include complex 5-axis CNC machining, reverse engineering, casting machining, and tooling development, such as custom jigs and fixtures. C.S. Simmons Engineering excels in working with high-performance superalloys like Inconel, Hastelloy, and Monel, alongside traditional metals and castings. They serve demanding sectors including Oil & Gas, Rail, Defence, Renewable Energy, and Chemical Testing, and offer welding services compliant with ASTM International Standards.
The company is BS EN ISO 9001:2015 certified, ensuring robust quality management and full traceability, including 3.1b Certification for Hastelloy components. They pride themselves on fast turnaround times, competitive quotes, and high capacity, supported by recent investments in advanced CNC machinery and sophisticated inspection equipment like a Zenith Too 1000 CNC CMM.
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CNC capability6
- Sub-process
- Milling, Turning
- Specialist categories
- Large-envelope
- Named machine brands
- DMG Mori
- Tier-one builder presence
- Yes
- Tolerance (typical)
- ±0.005 mm
- MOQ (minimum batch)
- 1
Materials & sectors2
- Materials
- Superalloys
- Industries served
- Defence, Oil & gas, Rail, Energy
Certifications & approvals1
- ISO 9001
- Held
Quality & traceability1
- CofC offered
- Yes
Welding & fabrication1
- Welding materials
- Nickel alloy
Services & production1
- DFM support
- Yes
29 of 41 facets not yet verified — show which
CNC capability: CAM software · Aerospace-grade CAM · CAD software · In-house design · Tolerance (tight) · Micro-machining · Lead time (weeks)
Certifications & approvals: ISO 14001 · AS9100 · ISO 13485 · IATF 16949 · NADCAP · Primes supplied · ITAR registered
Welding & fabrication: Welding automation · Coded welding (any) · Fabrication offered · Fabrication sub-categories · EN 1090 EXC level
Quality & traceability: NDT methods · Part marking · Process traceability · Cleanroom assembly · 3D scanning · Industrial CT · In-house toolroom · FAIR capability (AS9102)
Services & production: In-house finishing · Repeat orders (Kanban / VMI)