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Electropolishers for gold and silver

Electropolishing gold and silver is an efficient and economical way to brighten jewellery, especially items with a complex geometry. This technique can be employed to brighten almost all silver and gold alloys (including centrifugal castings) with the exception of white gold/palladium.
Polishing cycles last between 5 – 30 seconds and even deeper and hidden surfaces can be successfully polished.
You will find details of the required polishing salts at pre-treatment under electroplating chemicals

 

Electropolisher PEG 40
This is a benchtop unit suitable for workshops. One item can be polished per cycle. The maximum surface of the workpiece should not exceed 10 – 15 cm².

 

Electrolytic stripping unit EP 200
With this standard industrial system, a total surface area of 80 cm² can be polished during each cycle. The various control options of the rectifier such as infinitely manual adjustment of voltage, timer and impulse controlled modes make the EP 200 quite flexible. Due to these features batch production as well as serial production can be executed.

A dry heating protection is installed to monitor the bath level. If the solution drops below a preset level, the heaters turn off automatically.

A heating and cooling system is integrated in the process tank holding the process temperature at the optimum level.

Electropolisher PEG 40

Technical specifications 8685 2 100
Housing Steel sheet with acid-resistant coating
Housing dimensions (length x width x height) 340 x 260 x 270 mm
Rectifier 25 V/40 A with regulator knob
Workpiece holder Tweezers or hook
Cathode rods and cathode metal sheets Stainless steel 150 x 50 x 0,8 mm
Heater Quartz rod, 180 W Temperature monitored by bimetallic needle-gauge thermometer
Tanks with lids Plastic
Number of tanks 2
Tank dimensions (length x width x height) 150 x 100 x 150 mm
Capacity per tank 1.5 litre
Nominal voltage 220 V / 50 Hz
Weight 16 kg


Accessories
Plastic tank 1.5 litres 8605 9 001
Plastic tank lid 8605 8 001
Quartz rod immersion heater 8607 0 020
Stainless steel holder for heater 8607 0 013
Bimetallic thermometer 8600 6 001
Stainless steel holder for thermometer 8600 6 005
Polishing tweezers 8615 2 001
Grip with platinum hook 8615 2 002


Electrolytic stripping unit EP 200

Technical specifications
8101 1 509
Dimensions (length x width x height) 950 x 800 x 680 mm
Rectifier 25 V/300 A with regulator switch pulse control and timer from 1 seconds - 300 hours
Function of tank I Electrolytic polishing
Tank material PPH
Tank dimensions (length x width x height) 360 x 280 x 230 mm, Capacity approx. 20 litres
Workpiece and cathode rods Copper, stainless steel
Automatic heating and cooling system 2 x 400 W quartz heaters,
thermostatic control
Dry heating protection Yes
Cooling Plastic pipes
Drainage Plastic pipe with hand valve
Function of tank II 2 static rinses and 1 flowing water rinse
Tank material PPH
Dimensions (length x width x height) 460 x 270 x 250 mm (3, each 270 x 150 x 250 mm)
Water inlet and outlet Flowing water rinse:
Water inlet and overflow standpipe
Static rinses:
Outlet with hand valve
Nominal voltage 400 V / 50 Hz
Output 7 kW / main switch
Weight approx. 85 kg
Connection for water inlet and outlet Ø ½’’/50 mm


Accessories
E-polishing jig with
4 double hooks in platinum
8606 2 009
E-polishing jig
with 8 double hooks
and 4 single hooks in platinum
8606 2 011
E-polishing jig
with 8 double hooks in platinum
8606 2 010
E-polishing jig for chains 8606 2 012