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Metal sheet grinding removes high spots and brings plate to flatness within 0.02 mm. Furthermore, it produces a controlled surface finish that milling alone cannot match. Consequently, mold makers, precision equipment builders, and electronics fabricators specify ground plate stock. Here is what grinding actually does, and who needs it.

What Grinding Fixes

Mill-rolled plate has:

• Slight waviness from rolling stresses.
• Surface scale and decarburization.
• ±0.1–0.2 mm thickness variation.

Grinding removes 0.1–0.3 mm per side. Consequently, the plate arrives flat, square, and within tight tolerance. Furthermore, the surface finish (Ra 0.4–1.6 μm) suits machining, polishing, or coating.

Industry 1: Mold and Die Shops

Mold bases need flat plates so cavities sit parallel. Consequently, mold makers order ground pre-harden plate. We supply H13 / SKD61 Mold Steel pre-machined and surface-ground to drawing tolerance. The mold maker finishes cavities directly, without milling a base.

Industry 2: Precision Equipment Builders

Machine tool beds, inspection tables, and fixture plates need flat reference surfaces. Consequently, these parts use ground steel plate. Furthermore, ground plate eliminates the need for hand scraping.

Industry 3: Electrical and Thermal Applications

Copper busbars and heat sinks need flat surfaces for thermal contact. Consequently, C11000 / T2 Copper Plate ships ground on both sides for high-pressure contact applications. Furthermore, ground copper removes oxide scale that would otherwise impede heat transfer.

Industry 4: Medical and Surgical

Surgical instrument and implant stock needs ultra-smooth, defect-free surfaces. Consequently, medical-grade stainless and titanium sheet receives centerless or surface grinding. Furthermore, the controlled surface finish supports electropolishing passivation.

What We Supply in Ground Condition

We can supply plate in ground or pre-machined condition:

• C11000 / T2 Copper Plate ground both sides for busbar and heat sink use.
• H13 / SKD61 Mold Steel pre-machined to mold shop drawings.
• D2 / SKD11 Mold Steel in pre-ground flat bar.

Specify Your Grinding Tolerance

A complete order reads: “C11000 copper plate, 10 mm × 500 × 1000 mm, ground both sides, flatness 0.05 mm, Ra 1.6 μm.” Leave out the tolerance and you receive mill finish.

Get Ground Plate Stock

Tell us your required flatness and surface finish. We will confirm grinding capability and quote.

• Email: vera.liang@ztwysteel.com
• Location: Xishan District, Wuxi, Jiangsu, China
• Services: surface grinding, pre-machining, cut-to-size
• Tolerance: flatness to 0.02 mm on request
• Documentation: MTC with chemistry, hardness, and dimensional report

We reply within one working day.