Value-added service
Assembly services for machined parts
We machine the parts, fit the hardware and put them together in our Aurora shop, so your assembly arrives ready to install.
- Family owned in Aurora since 1986
- Expedited service
- Parts
- Plastics and soft metals
- Hardware
- Standard, off the shelf
- Starts from
- Drawing or old unit
- Quantity
- Prototype to production
The hardware
What we fit
Hardware is standard and bought off the shelf. We source it with the job and fit it to your drawing.
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Screws, bolts, nuts and washers
The pieces fastened together into one unit, at the positions on your drawing.
Common on Bearing blocks Dividers
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Pins and retaining rings
Dowel pins locate one piece on another. Retaining rings hold parts on a shaft or in a bore.
Common on Actuator components Pistons
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O-rings
Fitted into their grooves, so the part goes straight into the valve, pump or cylinder.
Common on Plungers Spools PTFE valve seats
Mixed materials
Plastic and metal in one assembly
We machine aluminum, brass and bronze as well as plastics, so one assembly can combine them.
- Plastic wear faces on aluminum carriers
- Bronze or brass bushings pressed into plastic parts
- Machined metal parts assembled on their own
Why add assembly
Parts only, or assembled
| Parts only | Assembled by CDS | |
|---|---|---|
| Suppliers | Machined parts from one, hardware from another | One shop, one order |
| On arrival | Inserts, O-rings and fasteners still to fit | Ready to install |
| Fit | Fit checked when the pieces come together at your end | Every piece machined here to fit the others, to ±0.002"–±0.005" on critical dimensions, depending on the plastic |
Getting a quote
Start with what you have
Any one of these is enough to get a quote started.
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The assembly drawing
We machine every piece to it and put the assembly together.
Send a drawingUseful, if you have it
- Parts list or BOM
- Hardware callouts
- Quantity
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The old assembly
The whole unit or photos of it. We machine the worn pieces and refit new hardware.
Start from the old assemblyUseful, if you have it
- Photos of the assembly
- Which pieces are worn
- Quantity
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One part plus hardware
A single part with inserts, bushings or O-rings fitted before it ships.
Quote a part with hardwareUseful, if you have it
- The part drawing or sample
- The hardware to fit
- Quantity
Buyer questions
Assembly FAQs
Something else? Call (630) 904-2525.
Yes. Fitting threaded inserts, bushings or O-rings into a single part is part of the service, so it arrives ready to use.
Yes. We can build one assembly to check on your equipment, then the production run with the same parts and hardware.
Yes. Use the reorder form with your part number, and it comes back the same as the last order.
Custom machined parts
We machine almost any custom plastic part
Standard quote
Ready to quote your assembly?
A drawing or the old assembly is enough to start. Experienced help from your first quote to the finished part.