Aluminum Vacuum Chuck Fixture Plate O-Ring Sealing Grooves 5-Axis Machined 0.005mm

This vacuum chuck fixture plate is machined from 6061-T6 plate with a network of vacuum channels and continuous O-ring sealing grooves that divide the working face into independent holding zones. Each zone is sealed by its own groove and vented by its own vacuum port, so a small part can be held on one zone while the rest of the plate stays open. The plate is used for thin-wall and non-magnetic workpieces that cannot be clamped mechanically: optical housings, thin aluminium covers, PCB carriers, glass and ceramic parts and wafer-type substrates where clamping marks are not acceptable.

The critical dimension on this plate is not the outside shape but the flatness of the working face after the channels are cut, because the channels relieve internal stress in the plate and the face moves if the sequence is wrong.

Thin plates distort when material is removed from one face, so the channel grid is roughed on a stress-relieved blank, the plate is allowed to settle, and the final face pass is taken with light depth of cut on both sides. That is what keeps flatness at 0.005-0.01mm rather than drifting after the channels are cut.

Zone layout follows your part geometry, so the plate is designed around what you need to hold.

• Plate sizes from 150 x 150mm to 800 x 500mm, thickness 15-60mm.
• Zone count from 1 to 24, with zone shapes matched to your workpiece footprint, including ring zones for round parts.
• Channel and groove geometry per zone: continuous O-ring groove, double groove for high differential pressure, or porous insert pockets.
• Ports: side entry, bottom entry, or a manifold groove feeding several zones from one vacuum source.
• Interface features: machine table dowel pattern, T-slot alignment, lifting holes, robot handling features, barcode or laser marking.
• Materials: 6061-T6 for general use, 7075-T6 for higher stiffness, 5083 for corrosion resistance, 316L stainless for clean or wet processes.
• Finishes: clear or black anodizing with working face masked, hard anodizing for abrasive contact, PTFE coating on request.
• Prototype from 1 piece, with the same program and probing routine kept for repeat orders.

Send a workpiece sketch with the areas that must not be clamped, plus your vacuum source pressure, and our engineering team returns a zone layout proposal with holding force estimate and a quote, usually within one to two working days.

Dongguan Changxinda Precision Technology Co., Ltd has produced custom CNC parts since 2008 from Dongguan, Guangdong, China. The facility runs 4-axis and 5-axis machining centers, turn-mill combined lathes and CNC lathes with around 100 employees, including dedicated CAM programming and quality teams. More than 200 customers are served in medical equipment, robotics, automotive, aerospace, automation, laser, LED, lithium battery and precision testing instruments, and 50-60 percent of production is exported. The company is ISO 9001:2015 certified, with annual sales between USD 10 and 20 million and in-house inspection on CMM, granite surface plates and optical equipment. Fixture plates, vacuum chucks and multi-zone sealing plates are routine work, drawing on the same capability used for vacuum chamber and fluid handling components.

• Monthly capacity above 10,000 pieces across the fixture plate family, with reserved capacity for repeat programmes.
• Typical lead time: 3-7 days for prototypes, 7-14 days for 10-100 pieces, 14-30 days for mass production.
• Programs, probing routines, sealing test fixtures and the approved first article are archived against your part number, so repeat lots skip programming and leak-test setup.
• Flatness and zone leak test reports ship with every lot, keeping incoming inspection short.
• Rush service and scheduled release shipping available for projects with a fixed line-side date.
• Export packaging: face protected with film and foam, corner guards, desiccant, crate or pallet for LCL and FCL.

Thin-wall aluminium and stainless covers, optical and laser module housings, glass and ceramic substrates, PCB and FPC carriers, wafer-type fixtures, non-magnetic parts on 5-axis tables, inspection and CMM holding fixtures, and custom non-standard vacuum holding plates built to customer part geometry.