Serial Production of Welded and Machined Steel Components for Machine Builders
Laser Cutting, Bending, Fixture Welding, Machining, Painting and Assembly: Hundreds of Identical Parts
We manufacture welded and machined steel components in series for machine builders and OEMs: the frames, brackets, arms, housings and carriers that go into their machines, made in hundreds of identical pieces. Each part goes through laser cutting, bending, machining of bars and rounds, fixture welding, finish machining, fitting of bronze bushings, painting and assembly, all by our own team.
The example on this page is a family of parts for automotive service machinery, including tyre changers. Each part weighs 70 to 200 kg and measures from about 500 × 500 mm up to 1400 × 600 mm, and we have produced them in hundreds. The same approach applies to any machine that needs a steady supply of heavy, accurate steel parts, from equipment for workshops and garages to industrial and handling machinery.
Series production is a different job from one-off fabrication. The first part must match the five-hundredth, hole positions must repeat exactly, and the parts must arrive on schedule, painted, assembled and packed ready for your assembly line. We use dedicated welding fixtures, a controlled process and one team for every step, so you work with one supplier and receive finished components, not a pile of parts to assemble yourself.
Serial Production of Machine Components: Technical Overview
Built to your drawing| Product | Welded and machined steel components for machine builders and OEMs: frames, brackets, arms, housings and carriers |
|---|---|
| Part size | From about 500 × 500 mm to 1400 × 600 mm. Other sizes on request. |
| Part weight | Typically 70 to 200 kg per part |
| Material | Structural steel, grade as specified on your drawing. Bar and round stock for turned parts. Bronze for bushings. |
| Process chain | |
| Welding | In dedicated welding fixtures, for identical geometry and repeatable hole positions from part to part |
| Machined features | |
| Bushings | Bronze bushings fitted into machined bores, supplied as part of the finished assembly |
| Surface finish | Cleaned and painted in the colour you specify. Primer-only or other coatings on request. |
| Inspection | Dimensional checks against the drawing, fixture-controlled welding, weld inspection. Dye penetrant testing on request. |
| Production | Serial production of hundreds of identical parts, in batches or on a call-off schedule |
| Packing | Wooden crates or pallets, packed for export, with painted surfaces protected |
| Industries | |
| Input data | 2D drawings and 3D CAD models (STEP) |
| What we need to quote | Drawings, quantity and call-off schedule, material, tolerances, paint specification, bushing requirements and delivery location |
Send us your drawings and quantities and we’ll come back with a quote.
Request a quoteSeries Production of Welded and Machined Steel Components
Machine builders who sell equipment in volume need steel parts that are identical from the first unit to the five-hundredth. Every frame, bracket, arm and housing has to fit the next assembly step without adjustment, arrive on schedule and arrive finished. At Nika Steelworks we manufacture welded and machined steel components in series: laser cut, bent, welded in dedicated fixtures, machined, fitted with bronze bushings, painted and assembled by one team. Our reference project is a family of parts for automotive service machinery, including tyre changers, weighing 70 to 200 kg each and made in the hundreds.
If you are looking for a contract manufacturer for machine components that can handle the whole chain from sheet and plate to a finished, painted and assembled part, this is the work we are organised around.
What Serial Production Means for Welded Parts
One-off fabrication and serial production need different thinking. In a one-off job, a skilled welder can adjust as he goes. In a series of hundreds, adjusting each part wastes time and creates differences between parts. Series production replaces that with a defined process: cut parts that fit together without trimming, welding fixtures that hold every part in the same position, set machining programs, a fixed paint specification and a fixed assembly routine. The result is parts that are interchangeable, so your assembly line does not have to treat any of them as special.
Our Process, Step by Step
- Drawing review and process planning. We review the drawing and tolerances, decide the process sequence and plan the welding fixtures before production starts.
- Laser cutting. Plates are cut by laser with holes, slots and tabs in exact positions, so parts fit together tightly and welding needs little correction.
- Bending. Cut parts are formed on the press brake (bending and rolling) to the angles and radii on the drawing.
- Machining of bars and rounds. Pins, shafts, spacers, hubs and similar parts are turned and milled from bar and round stock on our CNC machines.
- Fixture welding. Cut, bent and machined parts are placed in dedicated welding fixtures and welded to the drawing (welding and fabrication).
- Finish machining. Bores, bushing seats and mating faces that must be exact are machined after welding.
- Bronze bushing fitting. Bronze bushings are fitted into the machined bores.
- Painting. Parts are cleaned and painted in the colour you specify (sandblasting and paint).
- Assembly. Bushings, pins, fasteners and other fittings are assembled into the finished component.
- Inspection and packing. Parts are checked against the drawing, packed in crates or on pallets, and loaded for delivery.
Why Fixture Welding Matters
Welding heats steel and moves it. In a series, even small movement changes hole positions and angles from part to part, and the result is parts that do not fit your assembly. Dedicated welding fixtures solve this: they clamp every part in the same position, control the order of the welds, and hold the part until it cools. The fixture is designed for the part, so a bracket or frame comes out of it in the same shape every time. Making the fixture is an investment, but across hundreds of parts it pays back in less rework, less scrap and parts that fit the first time. It is the main reason a fabricated part can be held to repeatable tolerances in series.
Machined Parts and Bronze Bushings
Many machine components are more than welded steel. They carry pivots, shafts and sliding parts, which means they need precise bores, bearing seats and bronze bushings. We machine the bores after welding, so the geometry is not affected by weld distortion, and fit the bronze bushings into them. Bronze is a common choice for bushings in pivots and sliding joints because it wears well and runs smoothly against steel pins. Where your design calls for pins, shafts or spacers, we make them from bar and round stock and supply the whole set together, so the part leaves us ready to assemble.
Part Sizes, Weights and Materials
Our reference parts weigh 70 to 200 kg each and range from about 500 × 500 mm up to 1400 × 600 mm. They include welded frames, brackets, arms, housings, carriers and machined blocks. Parts of this size need proper handling and fixturing, and we are set up for it. We work in structural steel, in the grade your drawing specifies, with turned parts from bar and round stock and bronze for bushings. Other sizes and materials can be quoted on request.
Industries and Applications
The same process suits any manufacturer who needs repeat steel parts for machines:
- Automotive service equipment: tyre changers and other workshop and garage machinery.
- Machine building and OEMs: frames, bases, arms and housings for machines built in volume.
- Handling and lifting equipment: carriers, brackets and structural parts.
- Industrial and agricultural machinery: heavy welded components with machined fits.
If your parts are similar in size and complexity, send us the drawing. We also make larger one-off parts: see our precision machined steel fabrications.
Painting, Packing and Delivery
Parts are painted before assembly, so surfaces are protected and bushing bores and machined fits stay within tolerance. For shipping, we pack the parts in wooden crates or on pallets, protect the painted surfaces and load by forklift. We can deliver the whole order at once or on a call-off schedule that follows your production plan, and we pack for export shipments. For long outdoor life or harsh conditions, galvanizing and other protective coatings are available.
Quality in Repeat Production
Quality in series production comes from controlling the process, not just checking at the end. Dedicated fixtures keep the welded geometry the same, set machining programs keep bores and seats consistent, and we check dimensions against the drawing as parts are produced and before they are packed. Welds are inspected, and dye penetrant testing is available when your specification requires it. You can read more about how we work on our quality page. We treat customer drawings as confidential and are happy to sign a non-disclosure agreement.
What to Send for a Quote
- 2D drawings and 3D models (STEP), with tolerances
- Quantity and delivery schedule, or call-off plan
- Material and bushing specification
- Paint colour or coating
- Packing requirements and delivery location
More from Nika Steelworks
Learn more about Nika Steelworks, see the equipment on our machine park, or browse all our services and projects. Related work: custom steel containers, equipment enclosure containers and solar tracker steel components.
Frequently Asked Questions
Can you produce hundreds of identical welded parts?
Yes. We produce serial runs of welded and machined parts using dedicated welding fixtures, so every part comes out with the same geometry.
What size and weight of parts can you make?
Our reference parts weigh 70 to 200 kg and measure from about 500 × 500 mm to 1400 × 600 mm. Send us your dimensions and we will confirm what is possible.
Do you fit bronze bushings?
Yes. We machine the bores and fit bronze bushings as part of the finished assembly.
Do you also machine the bars and rounds?
Yes. Pins, shafts, spacers and hubs are turned and milled from bar and round stock on our CNC machines.
Can you deliver on a call-off schedule?
Yes. We can ship the whole order at once or in batches that follow your production plan.
Do you paint and assemble the parts?
Yes. Parts are painted in your colour and assembled with bushings, pins and fittings before they ship.
Are my drawings kept confidential?
Yes. We treat all drawings as confidential and can sign an NDA before you send them.
Request a Quote for Serial Production
Send us your drawings, quantities, material, paint specification and delivery location, and we will come back with a clear quote. Contact Nika Steelworks to get started.