Confirm silver content and impurities before selecting the process route.
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CDOCAST supplies silver electrolysis machines and turnkey precious metal electrolytic refining equipment for laboratory, jewelry-factory and industrial refinery projects. Select the system by feed purity, daily throughput, electrolyte route, available utilities and required downstream casting process.
A silver electrolysis refining machine uses controlled direct current to dissolve prepared crude-silver anodes and deposit higher-purity silver at the cathode. Less-soluble precious-metal impurities collect in the anode residue for separate recovery, while soluble impurities remain under controlled electrolyte conditions.
The equipment is more than an electrolytic tank. A practical refinery project normally includes a DC rectifier, corrosion-resistant cells, cathode and anode assemblies, electrolyte circulation, temperature control, filtration, silver-crystal collection, washing, drying and final melting or casting equipment.
A stable 24-hour output requires correct anode preparation, electrical control, electrolyte circulation and downstream silver handling.
Confirm silver content and impurities before selecting the process route.
Cast or prepare the feed in the approved anode or basket format.
Regulate DC voltage, current, electrolyte temperature and circulation.
Separate crystal or powder, recover solution and wash correctly.
Dry the refined silver before melting into grain, bars or anodes.
Six purchasing options cover laboratory, workshop and industrial silver refinery projects. Confirm daily capacity as kg per 24 hours, not as tank volume.
A compact 220V single-phase system for laboratories, small precious-metal workshops, process trials and lower-volume silver purification.
A workshop-scale 220V option for jewelry factories and recyclers that require repeatable daily refining without installing a large industrial line.
A mid-capacity configuration between the 10 kg workshop unit and the CDO-SE50 industrial system. Tank quantity, rectifier, circulation, dimensions and utility demand are confirmed according to the customer’s assay and operating plan.
A three-phase industrial system for precious-metal refineries requiring higher current, larger cells and coordinated electrolyte circulation and recovery equipment.
A larger automated refinery layout for stable industrial feedstock, with 18 kW power, high-current electrolysis and space for circulation, collection and downstream handling.
A high-capacity three-phase project for bullion refineries, mining processors and centralized precious-metal recycling plants with planned material flow and environmental controls.
Verified from the supplied CDO-SE specification sheet. The 30 kg option is a project configuration and is therefore not assigned unconfirmed electrical or dimensional data.
| Specification | CDO-SE5 | CDO-SE10 | CDO-SE50 | CDO-SE100 | CDO-SE200 |
|---|---|---|---|---|---|
| Capacity | 5 kg/24h | 10 kg/24h | 50 kg/24h | 100 kg/24h | 200 kg/24h |
| Power | 300 W | 500 W | 12 kW | 18 kW | 24 kW |
| Electrolysis operating voltage | 1–3 V | 1–3 V | 1–12 V | 1–18 V | 1–18 V |
| Electrolysis current | 0–70 A | 0–100 A | 0–900 A | 0–1000 A | 0–1000 A |
| Input purity | >75% | ||||
| Target final purity | ≥99.99% | ||||
| Facility power supply | 220 V, single phase, 50/60 Hz | 220 V, single phase, 50/60 Hz | 380 V, 3 phase, 50/60 Hz | 380 V, 3 phase, 50/60 Hz | 380 V, 3 phase, 50/60 Hz |
| Dimensions (L × W × H) | 500 × 310 × 650 mm | 643 × 465 × 875 mm | 2100 × 1800 × 1600 mm | 4850 × 1350 × 1110 mm | 5800 × 1350 × 1100 mm |
| Machine weight | 30 kg | 75 kg | 336 kg | 700 kg | 800 kg |
Confirm what is included in the quotation instead of comparing only the electrolytic tank or rated daily capacity.
Corrosion-resistant tanks, anode positioning, cathode plates and conductive busbars sized for the selected system.
Regulated low-voltage, high-current power for stable electrolysis and operator monitoring.
Pumps, circulation tanks, piping, temperature management and filtration selected for the chemistry.
Crystal or powder collection, solid-liquid separation and controlled washing to recover entrained electrolyte.
Drying equipment and a correctly sized metal melting furnace prepare refined silver for grain, anodes or bars.
Acid-mist extraction, solution recovery and compliant wastewater treatment must match the local installation requirements.
These project inputs help determine whether a 5, 10, 30, 50, 100 or 200 kg/24h silver electrolysis machine is appropriate.
For complex or lower-grade feedstock, compare the aqua regia refining equipment route before selecting electrolysis. The gold and silver refining equipment selection guide explains the practical differences. For general technical background on silver electrorefining, see this U.S. Geological Survey silver report.
Review the refining route, equipment structure and project information before requesting a final configuration.
Use these supporting guides to evaluate process route, feedstock requirements, metal recovery and downstream production.
Clear answers about capacity, purity, 30 kg configuration, feedstock and complete refinery-line planning.
Yes. CDOCAST can configure a 30 kg/24h project between the standard CDO-SE10 and CDO-SE50 systems. Because the supplied standard parameter sheet does not list a separate CDO-SE30 column, its rectifier, current, tank quantity, dimensions and utilities must be confirmed in the technical proposal rather than copied from another model.
Standard verified CDO-SE capacities are 5, 10, 50, 100 and 200 kg per 24 hours. A 30 kg/24h project configuration is also available. Select capacity by actual feed assay, daily throughput, operating hours and downstream silver handling.
The supplied specification lists a target final purity of at least 99.99% from feed above 75%. This is a process target, not an unconditional guarantee: assay, impurity profile, anode quality, electrolyte chemistry, current density, temperature, contamination control and operating discipline all affect the result.
Not always. Complex or low-grade material may require melting, sampling and chemical pretreatment before electrolysis. CDOCAST should review an assay report before recommending electrolytic refining or an aqua regia pretreatment route.
A practical line may require a DC rectifier, circulation and filtration, cooling or temperature control, cathode collection, washing, drying, melting, casting, acid-mist extraction and wastewater treatment. Confirm the exact scope in the quotation.
Provide the raw material, assay, impurity profile, required kg per 24 hours, target purity, product form, voltage, workshop dimensions, ventilation and wastewater conditions, and whether you need electrolysis equipment only or a turnkey refinery line.
Send your assay, daily capacity, required final product, voltage and workshop plan. CDOCAST will match the electrolytic cells, rectifier, circulation, filtration and downstream equipment.
| Model | CDO-SE5 | CDO-SE10 | CDO-SE50 | CDO-SE100 |
| Capacity | 5kg/24h | 10kg/24h | 50kg/24h | 100kg/24h |
| Voltage | 220V,Single Phase, 50/60Hz | 220V,Single Phase, 50/60Hz | 380V,3-phase,50/60Hz | 380V,3-phase,50/60Hz |
| Input Current | 2A | 3A | 22A | 32A |
| Electrolysis Voltage | 1~3V | 1~3V | 1~12V | 1~18V |
| Electrolysis Current | 0~70A | 0~100A | 0~900A | 0~1000A |
| Input Purity | ＞75% | ＞75% | ＞75% | ＞75% |
| Final Purity | ≥99.99% | ≥99.99% | ≥99.99% | ≥99.99% |
| Dimension(mm) | 500*310*650 | 643*465*875 | 2100*1800*1600 | 4850*1350*1110 |
| Weight（KG） | 30 | 75 | 336 | 700 |
1.High Purity – Produces metals up to 99.99% purity (e.g., silver and gold electrolysis).
2.Scalability – Ideal for large-scale operations (e.g., industrial gold/silver refining).
3.Less Chemical Waste – Reduces reliance on acids like aqua regia, minimizing environmental impact.
4.Automation-Friendly – Continuous processing with minimal manual intervention.
1.High Purity – Produces metals up to 99.99% purity (e.g., silver and gold electrolysis).
2.Scalability – Ideal for large-scale operations (e.g., industrial gold/silver refining).
3.Less Chemical Waste – Reduces reliance on acids like aqua regia, minimizing environmental impact.
4.Automation-Friendly – Continuous processing with minimal manual intervention.