RSG Engineering is a well established production company devoted to the manufacture of a wide range of components on a ‘make-to-print’ basis. With particular experience in providing first-rate service to the railway industry, the company‘s experience spans over 45 years.
A policy of continual investment in machine tools and process controls places us in a position to accept today’s technological challenges of high quality coupled with good value. The stat-of the-art CNC machines include Nakamura twin-spindle lathes, Mori-Seiki lathes, and Bridgeport and Cincinnati machining centres, supported by a number of essential conventional machines.
While of note is our supply of locomotive parts, electrical machines, switch and control gear, other skills include the precision machining of a range of ferrous and non-ferrous metals as well as industrial plastics.
We actively develop our systems, facilities and skills to adapt to the needs of customers, a track record that can be measured in machine tool investments and recruitment of Apprentices.
Our specialist capabilities include:
  • Machining and CNC Milling
  • Assembly
  • Automation
  • Design and development
  • Rapid quotation turnaround
  • Express Delivery Service


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As an established company with many years' experience in fabrication and specialised laser cutting, we have developed and maintained an excellent working relationship with many repeat customers across the UK.

RSG have a fully equipped metal fabrication workshop with experienced and knowledgeable fabricators, motivated to design solutions to meet all our customers timescales. CNC punching and folding can be carried out using a wide variety of materials including Stainless steel, Aluminium, Mildsteel, Copper, Brass and 0.2mm Tin plated sheet steel.


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Our wide range of manufacturing services ensure  a reliable and competitive supply of quality sheet and machined parts and assemblies.
For over 35 years RSG has supplied customers from varied markets with a wide range of high quality milled and turned parts. Providing parts in any material you require including:
  • Mild steel
  • Stainless steel
  • Aluminium
  • Plastics
  • Alloys
  • Titanium
We have invested in the latest machine tool technology to provide the highest quality parts and assemblies. Using the latest CAD CAM software from Solidworks and Edgecam, we provide a thorough design to manufacture service.
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RSG produces sheet metal components and fabricated assemblies using a range of forming and welding techniques. Using profiles produced by the laser cutting division, materials include mild steel, stainless steel and aluminium.
With our comprehensive assembly facility we can provide mechanical, electromechanical and hydromechanical assemblies, providing access to high end technology and facilities, including dust-free clean rooms, temperature controlled calibration and state-of-the-art quality control facilities.
We assemble a wide variety of parts, from mechanical items such as metalwork, plastics and fasteners to electrical items including PSUs, fans, wiring looms and PCBs.
All of these services are undertaken at our purpose built engineering plant based in Leicester, England.  Our supply base is made up entirely of market leaders in their chosen fields of expertise.
Design & Development
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Design & Development
RSG can work closely with you at the design stage to achieve the best design for your desired outcome. Our experienced staff will advise on how best to achieve reduced manufacturing costs whilst maintaining the integrity of your design.
All aspects of manufacture are taken into account during this time, such things as material selection, manufacturing capabilities, dimensional tolerances, finishing and assembly.
Our design team specialise in opto-mechanical, mechanical and electro-mechanical design, styling and packaging. Our staff are highly experienced in all aspects of design for manufacture, utilising a range of manufacturing processes.
Developing the design through to prototyping stage, we can offer you the opportunity to carry out cost effective product evaluation prior to production.
Our 3D CAD and laser cutting technology provide highly accurate components with minimal tooling costs. Once the prototype has been approved, we will be able to ensure a smooth transition to small batch or large volume production.
Fully Machined Plastics
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Fully Machined Plastics
With over 35 years experience in machining plastics, primarily for the nation’s railways, RSG has a highly-developed cutting and shaping capability from sheet, rod or tube in a number of different materials. These include Tufnol, polyester, PVC, nylon, SRBP, SRBF, polycarbonate and Micronite.
The company is suitably equipped with the special skills and machinery demanded in the manufacture of a wide range of products including electrical and electronics mounting boards, heat sinks and insulation panels for high-voltage electrical equipment.
Featuring a dedicated plastics manufacturing machine shop, quite separate from the precision machining of a wide range of metal products, RSG provides ‘one-off’ prototypes and production batch quantities.
Plant List
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Plant List
CNC Turning (15 machines)
  • Mori Seiki CL-20.
  • Hwacheon CUTEX - 160MC with Hydrafeed Multifeed ML-1 (x2).
  • Takisawa TW-46.
  • Nakamura-Tome TW-10 with Hydrafeed Multifeed ML-1 (x3).
  • Mori Seiki SL-15 with Hydrafeed 3 metre Barfeeder.
  • Mori Seiki SL-25 with Hydrafeed Multifeed ML-1.
  • Mori Seiki SL-150MC.
  • Mori Seiki SL-200.
  • Mori Seiki SL-2500.
  • Doosan S-310N with Iemca Kid 70 Barfeeder.
  • Doosan S-280N with Iemca Kid 70 Barfeeder.
  • Nakamura-Tome TMC-18 with Hydrafeed Multifeed ML-1.
CNC Milling (16 machines)
  • Bridgeport VMC 500 with rotary head for 4th-axis machining.
  • Bridgeport VMC 1000X.
  • Bridgeport VMC 830 (x2).
  • Bridgeport VMC 1000XP2 (x3).
  • Yang MV-1200.
  • Hardinge XR-760 (x2).
  • Hardinge XR-1000.
  • Mori Seiki MV-40 with rotary head for 4th-axis machining.
  • Bridgeport VMC 800/30 (x2).
  • Cincinnati Arrow 1500 large VMC.
  • DMG VMC 103V.
Utilising both Fanuc and Heidenhain controls for greater flexibility.
Microloc magnetic and one touch workholding & tooling (x12)
Vacmagic vacuum table with additional subtables.
Supplementary Turning
  • Colchester Triumph 2000 Centre Lathe
  • Ward 3DS Capstan
  • Ward 2DS Capstan (x2)
Supplementary Milling
  • Bridgeport Series 1 2HP Turret Mills with Digital Read Out (x4).
  • Adcock & Shipley Universal Mill with DRO.
  • King Rich Vertical Turret Mill with DRO (x2).
  • Jones & Shipman 1076 Universal Grinder with Internal Attachment. 254 x 686 capacity (x2).
  • Cincinnati Milacron 2-0M Centreless Grinder (x2). Up to 6” capacity.
Supplementary Drilling
  • Pollard Spindle Drill 2, 3 & 4 spindles (x2)
  • For 2nd operation drilling, tapping, countersinking. All with power feeds
Quality & Inspection
  • Mitutoyo Euro M-544 CMM
  • Mitutoyo PJ-3005 Profile Projector
  • 20x magnification
  • Mitutoyo ATK F-1000 Hardness Tester
  • Mahr Digimar Height Gauge
Fully calibrated & ISO compliant manual inspection equipment comprising of gauges, micrometers, callipers, rules etc
Sawing & Miscellaneous
  • Kaltenbach Sabre NC-250 Auto Bandsaw. 254mm diameter capacity.
  • Everising Auto Bandsaw (x2). 300mm diameter capacity.
  • MEC Brown Circular Saw (x2)
  • Wadkin Panel Saw. For MDF, Tufnol & other industrial plastic sheets.
  • MIG & TIG Welding Soldering & Brazing.
  • Deburring: Grinding, smoothing, rumbling & linishing.
  • Propen P-3000 Engraving Machine.