Precision Ground Plates

Precision ground plates serve as dimensionally stable foundations, fixture bases, and structural components for high-precision machinery, jigs, and tooling systems. They are engineered for demanding applications including CNC fixture sub-plates, mold bases, progressive die sets, and automated assembly frames.

To prevent post-machining distortion-the most common failure mode in custom plates-our manufacturing sequence integrates thermal stress-relieving, balanced stock removal, and high-precision double-disk grinding. Production capabilities cover multi-axis CNC milling, surface grinding, and rigorous CMM verification, ensuring geometric stability and tight tolerances under heavy industrial loads.

Dimensional Accuracy: Ground to strict thickness, width, and length tolerances to eliminate secondary fitting operations on the assembly line.

Geometric Stability: Manufactured using stress-relieved stock materials and balanced machining sequences to prevent warping or distortion during subsequent use.

Surface Quality: Uniform surface finish achieved via precision grinding, providing clean reference planes for alignment and mounting.

Repeatability: Consistent batch-to-batch production parameters ensure interchangeability across modular fixture builds.

Complex Feature Integration: Capability to add threaded holes, dowel pin holes, counterbores, and slots alongside ground reference faces in a single setup.

Automation: Robotic end-effector bases, linear guide mounting plates, and transfer station sub-assemblies.

Aerospace: Jig and fixture plates for assembly verification and lightweight structural test rigs.

Automotive: Stamping die components, welding fixture bases, and automated inspection gauges.

Medical Device: Surgical fixture bases, cleanroom equipment frames, and precision instrument chassis.

Industrial Equipment: CNC machine beds, optical bench plates, and heavy-duty transmission housing brackets.

Material Options
Aluminum Alloys: 6061-T6, 7075-T6, 5083 (stable, lightweight, suitable for automation fixtures).

Tool Steels: A2, D2, O1, P20 (high wear resistance, hardened and tempered for tooling applications).

Stainless Steels: 304, 316L, 17-4PH (corrosion-resistant, suitable for medical and food-grade machinery).

Cast Iron: FC250, FCD500 (excellent vibration dampening for heavy-duty machine bases).

Surface Finishes
As-Ground: Standard precision ground finish (Ra 0.8 um).

Anodizing: Clear or hard coat anodizing (MIL-A-8625) for aluminum plates to increase wear and corrosion resistance.

Electroless Nickel Plating (ENP): Applied to steel components for uniform corrosion protection.

Black Oxide: Chemical conversion coating for steel tooling plates.

CAD / Drawing Review: Engineering team evaluates STEP, IGES, SolidWorks, and PDF drawings for manufacturability, tolerance stack-up, and material selection prior to production.

Custom Dimensions: Plates cut, milled, and ground to exact customer layout requirements, avoiding standard catalog size limitations.

Tolerance Customization: Specialized grinding processes available for ultra-flat requirements (< 0.005 mm).

Prototyping & Production: Flexible scheduling supporting single-piece custom prototyping through to medium-volume production runs.

CMM Verification: Inspection of complex hole patterns, datums, and geometric tolerances using coordinate measuring machines.

Flatness & Parallelism Testing: Measured on dedicated granite surface plates using dial test indicators and optical flats to verify deviations per 300 mm.

Surface Roughness Profiling: Contact-type profilometers used to confirm strict adherence to specified Ra finish thresholds.

Dimensional 100% Check: Calibrated micrometers, depth gauges, and height masters used for critical thickness, length, and width verification.

Material Traceability: Mill Test Certificates (MTC) supplied with every batch to verify chemical composition, heat lot numbers, and mechanical properties.

Protective Packaging: Anti-corrosion VCI film wrapping combined with edge protectors to prevent transit damage.

Batch Identification: Individual plates labeled with part numbers, material grades, and heat lot numbers for traceability.

Export Packaging: ISPM 15-compliant wooden crates or reinforced corrugated cartons for safe international freight.

Lead Time: Prototypes delivered in 7 to 12 business days; production batches scheduled per specific project requirements.

Submit your project requirements to receive a technical and commercial evaluation within 24 hours. Please include:

• Part Drawing / 3D CAD File (STEP / PDF)
• Material Specification
• Required Quantity (Prototypes or Production Batches)
• Tolerance and Surface Finish Requirements

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