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Reverse engineering and replacement parts

Reverse Engineering for Replacement Parts

Send the old part or photos with measurements. We measure, model and make the replacement, and you keep the drawing for next time. Reply within 24 business hours.

Machined metal parts lying on engineering drawings, reverse engineering of replacement parts
Every feature measured, every dimension on a drawing you own.
You keep the drawing2D drawing and 3D model delivered with the part.
Sample or photosWe start from what you have.
Inspected before shippingMeasured against the new drawing.
Reply within 24 business hoursWith a quote, questions or a clear no.

Is reverse engineering the right route?

Buying from the OEM is easier when it works. Tick what applies to your part.

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Hands measuring a worn metal part with a digital caliper for reverse engineering

Parts we reverse engineer most

  • Gears and pinions
  • Bushings and sleeves
  • Shafts and spindles
  • Rollers and pulleys
  • Brackets and housings
  • Cams and levers
  • Couplings and flanges
  • Wear plates and guides

Worn parts are measured where they are not worn and checked against the mating parts. Where wear hides the original size, we tell you which values we chose and why.

Exact copy or improved replacement?

Both start with the same measurement. The difference is what you want from the new part.

Exact copy

Same geometry, same material and same treatment as the original, as far as it can be identified.

  • Drop-in fit, no change to the machine
  • Fastest route for urgent parts
  • Material identified by test when needed

Improved replacement

Same fit, but a better material, hardness or coating where the old part failed.

  • Longer life between replacements
  • Fixes the reason the part wore out
  • Needs your approval on the changes

How reverse engineering a part works

What we measure and how

Typical methods and what they achieve. These are typical values, not promises. The quote states the method for your part.

MethodUsed forTypical accuracy
Calipers and micrometersDiameters, lengths, simple features±0.01 mm
CMM measurementBores, positions, flatness on precise parts±0.005 mm
3D scanningFreeform shapes, castings, worn surfaces±0.03 to ±0.05 mm
Gear measurementModule, tooth count, pressure angle, helixPer gear class
Material analysisAlloy grade by spectrometer, hardness testGrade and HRC

Where replacement parts are needed

Old machines run for decades. The parts that wear out are the same in every plant.

Manufacturing plants

Spares for presses, packaging lines and machine tools.

Food and beverage

Stainless parts for fillers, conveyors and mixers.

Mining and aggregates

Wear parts, bushings and shafts for crushers and conveyors.

Pulp, paper and printing

Rollers, gears and shafts for older presses.

Agriculture

Gears and shafts for equipment no longer supported.

Marine and energy

Pump parts, couplings and valve components.

How it works

You send the problem. We take it from drawing to delivery and keep you informed at each step.

  1. Send your files

    The worn part, photos with key measurements or a broken sample. Tell us where it fits and what failed.

  2. We review and quote

    We confirm what can be measured, the material and the lead time, then quote the drawing and the part.

  3. We produce and inspect

    We draw it, you approve the drawing, then the part is made and measured against it.

  4. We deliver

    Part, inspection report and the drawing in PDF and STEP. Your original sample goes back to you.

What drives the price of a replacement part

Five things decide most quotes.

  • Measuring effortA simple shaft takes an hour. A worn gear or a freeform casting takes much longer.
  • MaterialAlloy steel, bronze or stainless cost more and some need heat treatment.
  • ToleranceBearing seats and gear teeth need precise work and inspection.
  • QuantityMeasuring and drawing is paid once. Spare batches bring the price per part down.
  • UrgencyA machine standing still justifies a rush order. Planned spares are cheaper.

Have a worn part on the bench?

Send photos and a short description now. We will ask for anything missing. Prefer to give full details up front? Use the full quote form.

Your files are seen only by our team and the partners working on your project. Ask for an NDA and we sign it first.

Photos, PDF, STEP or a zip. Can't upload from your phone? Email the files to after you send this form.
Reply within 24 business hours.

Measure, scan or machine replacement parts?

We work with production shops, component suppliers and engineers in this field. Register once and we send you project scopes that fit what you do. We handle the customer side.

Questions customers ask

Something else? Email .

Do I have to ship the original part?

For precise parts, yes, because measuring the real part is the only way to be sure. For simple parts, clear photos with a ruler and a few key measurements can be enough to quote and sometimes to make.

Do I get the drawing?

Yes. You receive the 2D drawing in PDF and the 3D model in STEP with the part. You can use them for future orders with anyone.

What if the part is badly worn?

We measure the unworn areas and the mating parts and use standard fits where wear hides the original size. We list those decisions on the drawing for your approval.

Is it legal to copy an OEM part?

Making replacement parts for your own equipment is common practice. Some parts are protected by patents or design rights, so you confirm that you have the right to order the part. If we see a reason to doubt it, we ask.

Do you make the parts yourselves?

Production runs at partner shops we have audited for this kind of work. We stay responsible for the order: we review the drawing, pick the shop, follow production, inspect before shipping and deliver to you. You deal with one contact and one purchase order.

Where is the work done?

Where it fits the job best. Urgent work can run close to you and larger batches where the price is better. We tell you the place of production with the quote, before you order.