Highly Polished Magnesium Plate for Engraving and Etching

Name: Highly Polished Magnesium Plate for Engraving and Etching
Brand: SGZ

Overview

What This Product Is

SGZ Highly Polished Magnesium Plate is the uncoated version of the SGZ photoengraving magnesium plate, with a smooth, shiny, highly polished face. It runs to 2000 mm long and 1500 mm wide from 0.5 mm thick, which makes it the plate to specify when the format is larger than a standard coated sheet.

Very large formats

Up to 2000 mm long and 1500 mm wide.

Thin stock available

From 0.5 mm minimum thickness.

Highly polished

A very smooth and shiny surface, straight off the polishing line.

Thickness deviation control

Thickness deviation is controlled across the sheet.

Who it is for

Buyers Who Specify It

CNC engraving shops

Magnesium engraves cleanly and is light enough to handle in large sheets.

Etching houses coating their own resist

Shops that want to control the resist and the exposure themselves.

Large-format plate makers

Work that will not fit a 610 x 914 mm sheet.

Tooling and fixture shops

Thin magnesium stock for light jigs and templates.

Problems it solves

What Goes Wrong Without It

Coated magnesium plate is limited to stock sheet sizes. This grade runs up to 2000 x 1500 mm.
Thickness that drifts across a large sheet spoils registration. SGZ controls thickness deviation on this plate.
Heavy plate is slow to load and unload. Magnesium is light and easy to carry.
Manganese content affects how cleanly the plate etches. Magnesium plate with low manganese content gives better etching results.

Technical data

Specifications

Every figure below is taken from the SGZ specification for the Highly Polished Magnesium Plate for Engraving and Etching. Where SGZ does not publish a value, none is invented.

Specifications for Highly Polished Magnesium Plate for Engraving and Etching
Product type	Uncoated highly polished magnesium plate
Maximum length	2000 mm
Maximum width	1500 mm
Minimum thickness	0.5 mm
Surface	Highly polished, smooth and shiny
Thickness deviation	Controlled across the sheet
Suitable for	CNC engraving, and etching after in-house resist coating
Packing	Inner carton with outer wood pallet or wood case

Technical Features

Uncoated and highly polished on the working face
Length up to 2000 mm, width up to 1500 mm
Minimum thickness 0.5 mm
Very high purity magnesium
Low manganese content option for better etching
Light enough to carry and mount by hand

Materials

High purity magnesium, polished on the working face. A low manganese grade is available where etching quality matters most.

How it is made

Manufacturing Process

Rolling
Magnesium is rolled down to the ordered thickness, from 0.5 mm.
Polishing
The working face is polished to a smooth, shiny finish.
Thickness control
Deviation is measured and controlled across the sheet.
Cutting
Plates are cut up to 2000 x 1500 mm.
Packing
Interleaved, cartoned and crated for export.

Quality Control

Surface inspected for polish quality
Thickness deviation measured across the sheet
Purity controlled
Manganese content controlled on the low-Mn grade

Customisation Options

Any size up to 2000 x 1500 mm
Thickness from 0.5 mm upward
Low manganese grade for etching work
Cut to a customer drawing

Certification

SGZ does not publish third-party certification for this item, so none is claimed here. Ask [email protected] if your market requires specific documentation.

Comparison

How It Compares With the Alternatives

Coated Magnesium Plate for Engraving and Etching

The coated grade arrives ready to expose but is limited to stock sheet sizes and 1.0-10 mm. This grade is bare metal, thinner at the low end and far larger at the top end.

Polished Zinc Plate for Engraving and Etching

Zinc is heavier and tops out at 7.0 mm and 1000 x 510 mm. Magnesium is lighter and runs to 2000 x 1500 mm.

Magnesium Tooling Plate

Tooling plate starts at 100 mm thick and is bought for stiffness and damping, not for printing.

Use Guide

For CNC engraving, clamp the plate flat and cut directly; magnesium cuts easily.
For etching, degrease the polished face and coat your own photoresist.
Ask for the low manganese grade if the job is fine-line etching.
Etch with X-Flex or Rev-Flex magnesium additive.
Store flat and dry; magnesium is soft and marks easily.