CNC Machined Adapter Plates
Adapter plates that marry two bolt patterns, with the off-centre and stepped versions if needed.
Adapters between two interfaces that were never designed to meet - motor to gearbox, flange to flange. Hole patterns are positioned from one datum so the offset is controlled.
How we make it: Precision CNC machining service →
2–4 weeks
1 piece
ISO 9001:2015
Technical Specifications
| Parameter | Value | Unit |
|---|---|---|
| Hole position | ±0.05 | mm |
| Face parallelism | 0.02 | mm |
| Pilot bore fit | H7 / h7 | - |
| Thickness range | 5–100 | mm |
| Max plate | 800 × 800 | mm |
| Faces machined | Both sides | standard |
Available Materials
Typical Applications
- Motor to reducer adapters
- Flange conversions
- Sensor interface plates
- Retrofit mounting
- Pump changeovers
Surface Finishes
- Machined faces
- Anodise
- Painted
- Zinc plating
- Black oxide
Industries Served
- Industrial Equipment
- Automation
- Energy & Oil & Gas
- Water Treatment
- Marine
What drives the price of this part
Derived from the callouts on this page. Where a driver is not on the drawing, it is not on this list.
- Tolerance
- Hole position at ±0.05 mm is the tightest callout this family carries. Tightening a callout is a process decision, not a machining decision: below the standard ±0.005 mm the work moves to grinding or jig boring, and the price moves with it.
- Part size
- Thickness range at 5–100 mm decides which machine the part lands on and how many setups it needs. Size is the driver buyers most often leave out of a first enquiry, and it is the one that changes the quote fastest.
- Material
- The first material listed, Aluminium 6082-T6, rates 9/10 on our machinability scale at 95 HB. On this shop's scale a harder alloy means slower passes and more tool changes, and that is cycle time the quote has to carry.
- Order size
- Minimum order is 1 piece, so on a first order setup and programming are spread over very few parts and they are most of the price. Repeat orders at the same quantity are cheaper without anything on the drawing changing.
See how cycle time is calculated in the machining time calculator and what else moves a price in the cost driver reference.
How these parts are inspected
Matched to the callouts above and the instruments actually on the floor.
- Coordinate measuring machine (Zeiss CONTURA G2, two machines, GR&R 8.4% on the critical feature)
- Dimensional report against the drawing, with a 100% check on critical features rather than a sample
- Certificate of conformance and the mill certificate with every shipment
- Bore gauges and an optical comparator for hole position and edge form
The full equipment list, with counts, is on the capability page; the inspection sequence is on quality and inspection.
Questions buyers ask
- How tight should an adapter pilot fit be?
- H7 on the bore, h7 on the spigot, for a hand press. Loose and the driven shaft runs off centre; tight enough to need forcing and you damage the fit taking it apart.