High-Accuracy Finishing

Precision Surface Grinding Services

Precision surface grinding serves as the critical final phase in producing complex components that require superior geometric truth. When vertical and horizontal CNC cutting reaches its physical limits, our precision surface grinding in China delivers the high flatness, parallelism, and uniform thickness control required for demanding mating surfaces, hardened plates, and automation assemblies.

CNC machined parts grinding and surface finishing

Integrated Machining and Grinding Workflow

Managing split orders across separate milling suppliers and secondary grinding shops introduces communication friction, shipping delays, and divided accountability. PRECI5 operates as a consolidated manufacturing partner, unifying multi-axis cutting with precise surface finishing under one roof.

Process Continuity

Our production engineering unifies 5-axis, 4-axis, and turn-mill operations directly with final finishing. Grinding stock allowances are systematically reserved during primary CNC toolpath programming to avoid material deficiency or excessive wheel wear.

Reduced Lead Times

Eliminating off-site transportation between milling facilities and third-party grinding shops removes administrative overhead, prevents shipping transit damage, and shortens the overall production schedule.

Single-Source Accountability

Handling both CNC machined parts grinding and rough machining in-house places complete dimensional ownership on PRECI5. We take full responsibility for print compliance from initial stock setup to final CMM verification.

Our Grinding Equipment and Capacity

Our machine fleet is optimized for repeatable accuracy across low-to-medium batch runs and high-precision tooling plates. We deploy dedicated Japanese surface grinding equipment alongside specialized cylindrical and honing assets.

Capability Main Equipment Origin Quantity Travel or Capacity
Surface Grinding Okamoto Surface Grinder Japan 2 units 500 × 200 mm

Secondary Processing Spectrum: In addition to planar surface grinding, PRECI5 manages external and internal cylindrical grinding, honing, and extrusion honing to accommodate complex part features, shafts, and bore profiles.

When to Utilize Surface Grinding Services

While standard CNC milling delivers efficient material removal, specific mechanical requirements mandate abrasive finishing. Review the primary engineering conditions below where grinding is essential.

Ideal for baseplates, reference datums, and sliding guides where cutter deflection, residual stress relief, or fixture clamping forces during traditional milling compromise planar geometry.

Quality Control and Dimensional Verification

Precision grinding requires dedicated measurement systems to validate micrometer-level conformity. Our quality assurance protocol verifies geometric form, surface texture, and post-grinding integrity.

Surface Roughness Testers

Contact profilometers verify specified micro-inch finishes and Ra values across ground planes.

ZEISS CMM

Coordinate measuring machines confirm complex datums, parallelism limits, and positional true position.

Calibrated Micrometers

High-resolution digital micrometers and bench gauges provide multi-point thickness verification.

Coating Thickness Gauges

Ensures post-grinding surface treatments or plating layers remain within exact engineering limits.

Partner with PRECI5

PRECI5 delivers consistent, high-precision surface grinding services from our Shenzhen facility. Whether producing individual tooling prototypes or production runs requiring 5-axis machining combined with Okamoto grinding, our team delivers complete geometric compliance.

Drawing Requirements: Send Drawing with Flatness, Parallelism & Surface Finish Requirements for rapid engineering review.
Direct Inquiries: info@5-axiscncmachining.com
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Request a Precision Grinding Quote

Upload your CAD models and 2D engineering drawings with target tolerance specifications.