
Etching Machine · Powderless Etching Machine
Powderless Etching Machine BS Brand
BS powderless etching machine in ten bath sizes from 20 L to 200 L, for zinc, copper and magnesium plate.
Overview
What This Product Is
The BS powderless etching machine is the bath SGZ supplies alongside its plate and additive. Ten models cover bath capacities from 20 to 200 litres, and each one etches zinc, copper and magnesium plate with rotation, temperature and time set from the front panel.
Ten sizes
20, 40, 60, 80, 100, 120, 140, 160, 180 and 200 litre baths.
Full panel control
Rotation 0-450 r/min, temperature 15-30 degrees C, time 0-60 minutes.
Three metals on one machine
Zinc, copper and magnesium etching.
Standard power supply
220 V or 380 V, from 3.2 kW on the BS20 to 12.4 kW on the BS200.
Who it is for
Buyers Who Specify It
New etching houses
Buyers setting up a first line who want the plate, the additive and the machine to match.
Plate makers adding capacity
Shops adding a second or third bath as volume grows.
Trophy and medal manufacturers
In-house etching for award work.
Printing groups with in-house die shops
Companies that cut their own stamping and embossing dies.
Problems it solves
What Goes Wrong Without It
- Buying the plate from one supplier and the machine from another leaves nobody responsible for the etch result. SGZ supplies all three parts of the process.
- A bath sized wrong for your plate wastes additive on every cycle. Ten capacities from 20 to 200 litres let you match the bath to your plate size.
- Uncontrolled bath temperature changes the etch rate from batch to batch. Temperature is set on the panel between 15 and 30 degrees C.
- One machine per metal is expensive. The BS machine handles zinc, copper and magnesium.
Technical data
Specifications
Every figure below is taken from the SGZ specification for the Powderless Etching Machine BS Brand. Where SGZ does not publish a value, none is invented.
| Brand | BS (China) |
|---|---|
| Type | Powderless etching machine |
| Application | Zinc, copper and magnesium plate etching |
| Bath capacity | 20, 40, 60, 80, 100, 120, 140, 160, 180, 200 L |
| Plating size | 250 x 350 mm up to 900 x 1200 mm |
| Rotation | 0 - 450 r/min |
| Temperature control | 15 - 30 degrees C |
| Time control | 0 - 60 min |
| Power | 3.2 kW - 12.4 kW by model |
| Voltage | 220 V / 380 V |
Model Table
| Model | Plating size (mm) | Bath capacity (L) | Rotation (r/min) | Temperature (C) | Time (min) | Power (kW) | Voltage (V) | Machine size (mm) |
|---|---|---|---|---|---|---|---|---|
| BS20 | 250 x 350 | 20 | 0-450 | 15-30 | 0-60 | 3.2 | 220/380 | 920 x 600 x 1100 |
| BS40 | 360 x 500 | 40 | 0-450 | 15-30 | 0-60 | 4.0 | 220/380 | 1310 x 800 x 1100 |
| BS60 | 500 x 600 | 60 | 0-450 | 15-30 | 0-60 | 5.5 | 220/380 | 1500 x 1000 x 1100 |
| BS80 | 500 x 740 | 80 | 0-450 | 15-30 | 0-60 | 6.5 | 220/380 | 1650 x 1100 x 1100 |
| BS100 | 600 x 800 | 100 | 0-450 | 15-30 | 0-60 | 7.0 | 220/380 | 1800 x 1200 x 1200 |
| BS120 | 600 x 900 | 120 | 0-450 | 15-30 | 0-60 | 8.5 | 220/380 | 1900 x 1300 x 1200 |
| BS140 | 800 x 900 | 140 | 0-450 | 15-30 | 0-60 | 9.3 | 220/380 | 1900 x 1390 x 1200 |
| BS160 | 850 x 1000 | 160 | 0-450 | 15-30 | 0-60 | 9.5 | 220/380 | 1900 x 1490 x 1200 |
| BS180 | 850 x 1100 | 180 | 0-450 | 15-30 | 0-60 | 11.2 | 220/380 | 1950 x 1560 x 1200 |
| BS200 | 900 x 1200 | 200 | 0-450 | 15-30 | 0-60 | 12.4 | 220/380 | 1950 x 1650 x 1200 |
Technical Features
- Powderless etching, made in China under the BS brand
- Plating size from 250 x 350 mm on the BS20 to 900 x 1200 mm on the BS200
- Rotation speed 0-450 r/min on every model
- Temperature control 15-30 degrees C on every model
- Time control 0-60 minutes on every model
- Machine footprint from 920 x 600 x 1100 mm to 1950 x 1650 x 1200 mm
Materials
Steel cabinet with an acid-resistant etching chamber and a front control panel carrying rotation, temperature and time settings.
How it is made
Manufacturing Process
Specify the plate size
The plating size decides which model you need, from 250 x 350 mm to 900 x 1200 mm.
Match the bath capacity
Bath capacity runs from 20 to 200 litres across the ten models.
Check the supply
All models run on 220 V or 380 V, from 3.2 to 12.4 kW.
Match the additive
Zinc plate runs with Velv-Etch or SGZ zinc additive; magnesium runs with X-Flex or Rev-Flex.
Install and commission
Set rotation, temperature and time on the panel for the plate you are etching.
Quality Control
- Rotation, temperature and time controls tested before shipment
- Etching chamber checked for acid resistance
- Electrical supply configured to 220 V or 380 V as ordered
Customisation Options
- Ten bath sizes to choose from
- 220 V or 380 V supply
- Supplied together with matched SGZ plate and additive
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
Velv-Etch Zinc Etching Additive Oil
The machine is the bath; the additive is what does the etching. Both are needed, and SGZ supplies them together.
X-Flex Magnesium Etching Additive Oil
Use a magnesium grade additive in the same machine when you switch from zinc to magnesium plate.
Use Guide
- Pick the model from your largest plate size, not from your average plate size.
- Fill the bath with the additive matched to the metal you are etching.
- Set rotation, temperature and time on the front panel.
- Keep temperature inside the 15-30 degrees C band for a repeatable etch rate.
- Rinse plates immediately after the cycle ends.
Related Products

Etching Additive Oil
Velv-Etch Zinc Etching Additive Oil
Fuji Velv-Etch model E002 zinc etching additive, 20 kg per drum.
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Etching Additive Oil
X-Flex Magnesium Etching Additive Oil
Fuji Hunt X-Flex model E004 magnesium etching additive, 5 gal / 20 kg drum.
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Photoengraving Zinc Plate
Coated Zinc Plate for Engraving and Etching
Photoengraving zinc plate pre-coated with blue photoresist, 0.8-3.0 mm, with painted or filmed back.
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Photoengraving Magnesium Plate
Coated Magnesium Plate for Engraving and Etching
Blue hydro-coated photoengraving magnesium plate, 1.0-10 mm, green anti-acid back, faster etching than zinc.
View product →Answers
Powderless Etching Machine BS Brand Questions
What bath sizes are available?
Ten: 20, 40, 60, 80, 100, 120, 140, 160, 180 and 200 litres.
What is the largest plate the machine takes?
900 x 1200 mm on the BS200. The smallest model, the BS20, takes 250 x 350 mm.
Can it etch magnesium as well as zinc?
Yes. The machine is specified for zinc, copper and magnesium plate. Change the additive to suit the metal.
What power supply does it need?
220 V or 380 V. Power draw runs from 3.2 kW on the BS20 to 12.4 kW on the BS200.
What controls are on the machine?
Rotation from 0 to 450 r/min, temperature from 15 to 30 degrees C and time from 0 to 60 minutes.
Industry Applications

Industry
Commercial Printing and Publishing
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Industry
Awards Medals and Trophies
Award work is the part of the SGZ programme where the etched part itself is the product. Medals, championship belt plates and...
Read more →Guides to Read Next

Process Guide
Powderless Etching Explained
How a powderless etching machine works: bath capacity from 20 to 200 litres, rotation to 450 r/min, temperature 15-30 C, time to...
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Buying Guide
How to Choose an Etching Additive Oil
Four etching additive grades from SGZ: Velv-Etch E002 and the SGZ house oil for zinc, X-Flex E004 and Rev-Flex E003 for...
Read more →Request a Price on Powderless Etching Machine BS Brand
Give SGZ the size, thickness and quantity and you will get a direct factory quotation. Drawings for OEM etching can be emailed as an attachment.