Vacuum Fixtures & Chucks
Vacuum plates and chucks that hold thin or finished parts flat without clamping marks.
Vacuum workholding for thin plates and finished surfaces, where a mechanical clamp would distort the part or mark it. The sealing groove layout decides how well it holds.
How we make it: Custom CNC parts service →
4–6 weeks
1 piece
ISO 9001:2015
Technical Specifications
| Parameter | Value | Unit |
|---|---|---|
| Hold-down force | To 8 | kN/m² |
| Seal groove | Machined to suit | - |
| Face flatness | 0.02 | mm |
| Vacuum pump | Venturi or rotary | required |
| Porosity limit | Non-porous materials only | note |
| Max plate size | 1200 × 800 | mm |
Available Materials
- Aluminium 7075-T651
- Cast aluminium tooling plate
- Engineering plastics (seals)
- Steel S355
Typical Applications
- Thin plate machining
- Finished surface work
- Composite trimming
- Glass and ceramic
- Large panel drilling
Surface Finishes
- Anodised
- Machined grid and grooves
- Seals fitted
- Laser marked ID
Industries Served
- Aerospace
- Consumer Electronics
- Semiconductor
- Medical
- Automotive & EV
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
- Face flatness at 0.02 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.
- 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.
- Certification and paperwork
- ISO 9001:2015. On a certified family the inspection and documentation work is part of the price: first article inspection, material traceability and the dimensional report are produced per order, not per sample.
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
The full equipment list, with counts, is on the capability page; the inspection sequence is on quality and inspection.
Questions buyers ask
- Why does vacuum holding distort less than clamping?
- Because the force is spread across the whole face instead of concentrated at the clamps. On a thin plate, that difference is the flatness after machining.
Related part families
Workholding Fixtures
Machining fixtures that locate on the casting or forging datum, repeatable to 0.02 mm.
Tombstone Fixtures
Multi-sided tombstones that let one 5-axis setup machine several parts per cycle.
Inspection Fixtures & Gauges
CMM fixtures, check gauges and go/no-go tooling built from your CAD and certified dimensionally.