Product Description

Product Overview

We are a professional manufacturer of precision chemical etching metal shims using advanced photo-chemical etching / chemical milling technology. Our etched metal shims feature ultra-thin thickness, high precision, burr-free, stress-free, excellent flatness and stable performance. They are widely used for gap adjustment, precision positioning, sealing, spacing and assembly compensation in precision industries.

Key Features

· High precision tolerance: ±0.05mm

· Burr-free, no deformation, no stress

· Ultra-thin available: 0.01mm–2.0mm

· Custom shapes: holes, slots, steps, notches, complex profiles

· Materials: Stainless Steel 304/316, Brass, Copper, Aluminum, etc.

· RoHS / ISO9001 certified

· Low MOQ, fast sample & mass production

Typical Applications & Scenarios

1. Automotive Industry

· Engine valve shims, bearing adjustment shims

· Transmission shims, gearbox clearance shims

· Fuel injector shims, sensor shims

· Automotive electrical connector shims and sealing shims

2. Precision Machinery & Equipment

· Bearing preload shims, motor adjustment shims

· Mold spacing shims, fixture positioning shims

· Pump & compressor shims, mechanical assembly compensation shims

3. Electronics, Electrical & New Energy

· EMI/RFI shielding shims

· Battery connector shims, circuit board spacing shims

· Relay shims, micro-switch shims

· Semiconductor & optical device precision shims

4. Aerospace & Precision Instruments

· Aerospace structural adjustment shims

· Watch & instrument internal shims

· Optical lens positioning shims

· High-precision measuring equipment shims

5. Medical Devices & Home Appliances

· Medical equipment precision spacing shims

· Small appliance motor shims, sealing shims

· HVAC & compressor adjustment shims

6. Telecommunication & Automation

· 5G communication shims, connector shims

· Automation equipment positioning shims

· Spring shims and contact shims for relays

Why Choose Us

· Professional etching factory with 10+ years experience

· Custom design & drawing optimization support

· Stable quality & competitive factory price

· Fast delivery: samples 3–7 days, bulk 7–15 days

· Full inspection before shipment