DC power supply how to choose it?

To select it has three requirements:
1, DC power supply meet the specifications required by plating process, including dc power supply power, waveform index, adjustable current and voltage range, etc.;
2, DC power supply itself reliability power supply, which mainly refers to structure reasonable, security and line features, cooling methods;
3, DC power supply cost performance.

Determine what kind rectifier is suitable for you:

Determining plating type and and what kind of dc power supply the plating tanks shall use is the implementation and the first important work in electroplating production.

There are 2 methods to determine suitable dc power supply in the actual plating production:
One: according to plating liquid solution to determine volume current density;
Two: calculated according to the plating area to get plating current density per unit.

The so-called volume current density, it is based per liter of plating solution allowed to pass maximum current to adjust entire plating tank current intensity.

To determine the maximum power supply output and the conventional output.

Example for choosing:

Copper is generally 0.2 ~ 0.3A/L;
Nickel is 0.1 ~ 2.5A/L;
Bright nickel plating is 0.3 ~ 0.35A/L;
Acid zinc is A/L;
Alkaline zinc up to 1.2 A/L;
Chrome is A/L.
Bright nickel plating as case shows, 600L bath maximum process current up to 0.3A/L × 600L = 180A, so choose 200A is just fine.

If according to plating area volume also can calculate the max. current.

We take chrome plating as case: if it is 600L plating bath, at 60 ℃, maximum current density of 100A/dm2, the plating tank at full load setting as 10dm2.

Then the power required maximum output current of 100A/dm2 × 10dm2 = 1000A, that is, 1000A DC power supply, 18V rectifier power supply.

After determining power of DC power supply.

Also need consider plating technical treatment process requirements and plating site condition to select waveform, cooling method, volume size, and corrosion resistance, etc., including cost factors.

DC power supply

Specification and parameter:

DC power supply Input voltageSingle phase 220V AC, 3 phase 380V/415V/440V 50-60Hz
Output voltage6V/12V/15V/18V/24V/36V/48V optional or according to customers’ request
Output current0-300A (Random optional)
Voltage stability≤1%
Current stability≤1%
Ripple factor1%-2%
 Stabilization modeCurrent stabilization/Voltage stabilization (Switchable easily)
Adjustment rangeVoltage/Current from 0-100% continuously adjustable within rated range
Cooling systemAir cooling/Water cooling/Oil cooling
Control methodManual/PLC
Display contentsVoltage meter/Current meter/Working/Over temp/Error, etc..
Protection methodInput over voltage/Under voltage/Over current/Output short/Over heating self protection etc..
Operating temperature-20-50℃
Ambient temperature-30-65℃
Ambient humidity≤90%
Working loadingFull capacity operation, more than 1,000 meters above sea level, reduced load operation

5 replies
  1. Rodrigo Martinez Penunuri
    Rodrigo Martinez Penunuri says:


    I am Rodrigo Martinez from Hermosillo Sonora Mexico, I wonder if there is someone who can help me with a request for equipment for my Ph.D. work, we looking for equipment of 50 volts, 10 amperes, and switch to inverter polarities.

    I will be waiting for your answer.

    Best Regards

  2. Jakob
    Jakob says:

    Single channel output programmable DC power supply, provide high-power and stable DC supply. The auto-ranging feature enables a wide range of voltage and current combinations at full power.

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