Custom Thin Stainless Steel Shim Sheets for Industrial Assembly & Gap Adjustment

Product Overview

Metal shims are precision-engineered thin metal spacers used to fill small gaps or adjust alignment between parts. At Shenzhen Xinhaisen Technology, we produce high-accuracy etched metal shims for industries such as automotive, aerospace, medical devices, electronics, and mechanical assemblies. Our shims offer consistent thickness, burr-free edges, and tight tolerances for reliable performance.

Etching Process

We use photochemical etching (chemical milling) to manufacture metal shims:

• Material cleaning – Raw metal sheets are thoroughly cleaned.

• Lamination & exposure – Photoresist film is applied and exposed with precise shim patterns.

• Development – Unexposed areas are removed, revealing the metal.

• Etching – Chemical etchant dissolves exposed areas to create shims with high precision.

• Stripping – Remaining photoresist is stripped away.

• Inspection & packaging – 100% quality check before shipment.

This process produces burr-free, stress-free shims without heat or mechanical impact.

Product Features

• High precision – Tolerances down to ±0.01mm

• Ultra-thin capability – From 0.02mm to 1.5mm thick

• Fine detail – Minimum hole diameter 0.03mm, line width 0.015mm

• No burrs or edge deformation

• Consistent thickness across large or small batches

• Suitable for prototypes and mass production

Product Specifications

Applications

• Automotive – Gap adjustment, engine assemblies

• Aerospace – Precision alignment in critical components

• Medical devices – Spacers for surgical instruments

• Electronics – Shielding, contact shims

• Mechanical engineering – Bearing preload, tooling setup

• Optics – Fine positioning in optical mounts

Our Advantages

• High speed – Quick turnaround for urgent and large orders

• Wide material range – Various metals and alloys

• High accuracy – Advanced etching lines with strict QC

• Flexible volumes – Prototypes to mass production

• Experienced team – Specialized in precision etching since company founding

FAQ

• Q1: What thicknesses can you etch for metal shims?
  A: We etch from 0.02mm up to 1.5mm. Custom thicknesses are available upon request.
• Q2: Do your shims have sharp edges or burrs?
  A: No. Our chemical etching process produces burr-free, smooth edges without stress or deformation.
• Q3: Can you make custom shapes?
  A: Yes. We work from your CAD or drawing files to produce any custom shim shape.
• Q4: What is the typical lead time?
  A: Prototypes can be ready in a few days. Mass production timelines depend on quantity but are generally fast.
• Q5: Do you support small batch orders?
  A: Yes. We are flexible from small sample runs to very large volumes.

Welcome to contact us at any time!