When You Can't Buy the Part Anymore
Equipment rarely fails at a convenient time, and the part you need is often the one you can't get: the manufacturer discontinued it, the supplier went out of business, the OEM quotes a twelve-week lead time or a thousand-piece minimum, or the component was never sold separately at all. Meanwhile the machine sits idle and the cost climbs by the hour.
EKINSUN is built for that gap. We manufacture custom replacement parts to OEM specification or better, one piece at a time, from whatever you still have — the worn part, an old drawing, or just photos and measurements. No CAD file, no minimum batch, and a quote within 24 hours so you can plan the repair fast.
Send Us Whatever You Have
You do not need engineering data to start. Any one of these is enough for us to quote and reproduce the part:
A sample
The old part, even worn — we measure and restore it to original spec.
A broken part
In pieces is fine; we rebuild the geometry from the fragments.
A photo
Clear photos with one known dimension or a ruler in shot.
A hand sketch
A dimensioned sketch on paper — we turn it into a real part.
An obsolete part
Discontinued or unsupported — we reproduce it, or rebuild from the mating part.
Replacement Parts We Make
Start with the area that matches your problem — each routes to a focused page on how we reproduce those parts:
Machine & Equipment Parts
Shafts, bushings, gears, couplings, brackets, housings and drive parts for production machinery, conveyors and packaging lines.
Replacement machine parts →Obsolete & Discontinued Parts
The maker is gone or the part was retired. We reconstruct it — from the part, or from what it mates with when nothing survives.
Obsolete & discontinued parts →Parts From a Sample
Hand us the physical part and we copy it to form, fit and function — no drawing, no part number required.
Made from a sample →Pump, Industrial & Marine
Pump components, industrial equipment spares and corrosion-grade marine parts in 316 stainless, bronze and engineering plastics.
Describe your part →Common individual parts we reproduce — each has its own page with specs and how to order:
Shafts, Gears & Drive Parts
Bushings, Housings & Bodies
Don't see your part? We make far more than we can list — tell us what failed and we'll quote a replacement.
Repair It, Remake It, or Reverse Engineer It?
Not every failed part needs the same answer. Here is how we decide with you — and what each route is best for:
| Your situation | Best route | What we do |
|---|---|---|
| Part worn on one surface, still have it | Repair / re-machine | Sleeve or re-cut the worn feature where the part is otherwise sound — often the cheapest fix. |
| Cracked, badly worn or safety-critical | Remake new from the sample | Measure the original, rebuild CAD, machine a fresh part — often improved in material or geometry. |
| No original survives / discontinued | Reverse engineer | Reconstruct from the mating parts, an assembly, old drawings or photos. How it works → |
| Need it to outlast the original | Remake & upgrade | Tougher steel, hardened wear face, bronze instead of plastic, larger fillet where it cracked. |
No Drawing? We Reverse Engineer It
Most replacement jobs arrive without any documentation — all you have is the failed component, or not even that. That's our normal starting point.
Send the part or photos
Mail the worn or broken part, or send photos with a known dimension. We confirm what's usable first.
Measure & recover the original size
CMM and gauges capture the features; we restore worn dimensions to the original design intent, not the worn state. How reverse engineering works →
Confirm CAD, then manufacture
You approve the rebuilt drawing (free), then we machine, cast or mold and inspect. Order with no CAD file →
Made to OEM Spec — or Better
A replacement only helps if it drops straight in. We put the precision where the part needs it and inspect what we ship:
| Feature | How we hold it |
|---|---|
| Bearing journals, bores, mating faces | Tight, typically ±0.02–0.05 mm, to match the assembly |
| Threads & splines | Gauged to the matched standard (metric / UNC / UNF) |
| Gear tooth form | Reproduced to module/pitch and pressure angle of the original |
| General dimensions | ±0.05–0.1 mm, inspected against the model and your sample |
Materials
Metal
Steel, stainless (304/316), aluminium, brass, bronze, tool steel — turned and milled to tight tolerance, heat-treated where needed.
6061 →316 →Plastic
Delrin/POM, nylon, PTFE, PEEK — machined for one-offs, cast for small batches of wear parts and guides.
Vacuum casting →Wear parts
Bushings, bearings, rollers and guides in bronze or engineering plastic — often upgraded over the original for longer life.
Bushings →What to Send Us
- The worn or broken part, or photos from several angles (a ruler or caliper in shot helps)
- One known reference dimension — a diameter, a length, a bore or thread size
- What the part does and what it mates with (bearing size, shaft diameter, the housing it sits in)
- Any old drawing, manual page or OEM number — even a partial one
- Quantity — one to get running, or a few spares
- Delivery country (we ship worldwide)
No CAD, no problem. Rebuilding the drawing is our job — free, and confirmed with you before anything is cut. See how to order with no CAD file.
A note on branded parts. We make a compatible replacement to the original's form, fit and function from what you supply. We don't sell branded original products or imply affiliation with the original manufacturer.
Frequently Asked Questions
Yes — a main reason customers come to us. Send the worn or broken part, or photos with a few measurements, and we reproduce it to form, fit and function. If no original survives, we can often reconstruct it from the mating parts or assembly drawings. No part number or CAD file required.
No. A sample, a broken part, a hand sketch or clear photos with one known dimension are enough. We measure on a CMM, rebuild the CAD for free, confirm it with you, then manufacture.
Yes. No setup or tooling fee on machined parts, so a single replacement is welcome — often faster and cheaper than an OEM minimum order. We can also make a few spares from the same CAD.
Industrial machinery, pumps, conveyors and packaging equipment, automotive and motorcycle, marine, agricultural and legacy or obsolete equipment. If it can be turned, milled, cast or molded, we can usually reproduce it.
Often yes. When no original survives we reconstruct from the components it mates with, the cavity it fits, old manual pages, photos or drawings — common with obsolete parts where the supplier is gone.
We make a compatible replacement to the original's form, fit and function from the sample, drawing or photos you supply. We don't sell branded originals or imply affiliation with the original manufacturer.
A quote within 24 hours of us seeing the part or photos. After approval a single machined replacement is usually days, not weeks — far quicker than a back-ordered or discontinued OEM part. CAD reconstruction is free.
Get a Replacement Part Quoted
Worn part, drawing or photo — all accepted. Engineers reply in 24h.