Buy the Most Efficient Jewelry Polishing Machine
CDOCAST jewelry polishing machines are designed for jewelry factories, goldsmith workshops and precious metal manufacturers that need stable batch polishing, smoother surface finishing and lower manual polishing time.

For fast surface improvement of rings, pendants and small castings.
Best for: strong polishing + batch output
For deburring and edge smoothing after casting, cutting or stamping.
Best for: small parts + fast finishing
For gentle and stable finishing of mixed jewelry components.
Best for: daily batches + gentle processCustomers can compare capacity, power, voltage, working volume, machine size and weight before sending an inquiry. This makes the purchasing decision faster and more accurate.
Recommended for gentle batch polishing and daily jewelry finishing work.
| Model | CDO-VPM40 | CDO-VPM60 | CDO-VPM80 |
|---|---|---|---|
| Voltage | 380V, 3 Phase, 50Hz | 380V, 3 Phase, 50Hz | 380V, 3 Phase, 50Hz |
| Power | 550W | 750W | 750W |
| Capacity | 40L | 60L | 80L |
| Rotation Rate | 1450R/Min | 1450R/Min | 1450R/Min |
| Size | φ50 x 62cm | φ64 x 62cm | φ80 x 75cm |
| Weight | 50kg | 85kg | 100kg |
Recommended for fast deburring and edge smoothing of smaller jewelry parts.
| Model | CDO-CPM30 | CDO-CPM40 | CDO-CPM50 |
|---|---|---|---|
| Voltage | 380V, 3 Phase, 50Hz | 380V, 3 Phase, 50Hz | 380V, 3 Phase, 50Hz |
| Motor Power | 2.2 KW | 2.2 KW | 3 KW |
| Total Capacity | 30L | 40L | 50L |
| Polishing Tank Capacity | 4 x 7.5L | 4 x 10L | 8 x 6.2L |
| Polishing Tank Size | φ175 x 275mm | φ175 x 355mm | φ175 x 235mm |
| Rotation Rate | 1800 rpm | 1800 rpm | 1800 rpm |
| Outer Dimensions | 1080 x 960 x 1400mm | 1180 x 960 x 1400mm | 1280 x 960 x 1400mm |
| Weight | 600kg | 650kg | 720kg |
Recommended for stronger polishing action and higher-efficiency batch finishing.
| Model | CDO-GPM18-1 | CDO-GPM18-2 | CDO-GPM18-3 | CDO-GPM36-1 | CDO-GPM36-2 | CDO-GPM36-3 |
|---|---|---|---|---|---|---|
| Voltage | 220V, 1 Phase, 50Hz | 220V, 1 Phase, 50Hz | 220V, 1 Phase, 50Hz | 380V, 3 Phase, 50Hz | 380V, 3 Phase, 50Hz | 380V, 3 Phase, 50Hz |
| Motor Power | 0.75 KW | 2 x 0.75 KW | 3 x 0.75 KW | 2.2 KW | 2 x 2.2 KW | 3 x 2.2 KW |
| Rated Volume | 18L | 2 x 18L | 3 x 18L | 36L | 2 x 36L | 3 x 36L |
| Working Volume | 14L | 2 x 14L | 3 x 14L | 28L | 2 x 28L | 3 x 28L |
| Outer Dimensions | 690 x 850 x 1440mm | 1170 x 850 x 1440mm | 1680 x 850 x 1440mm | 880 x 780 x 1440mm | 1480 x 780 x 1440mm | 2120 x 780 x 1440mm |
| Weight | 140kg | 235kg | 330kg | 220kg | 370kg | 530kg |
Different jewelry parts need different polishing action. The best machine depends on whether the product requires edge smoothing, fast deburring, mirror preparation or gentle finishing for detailed surfaces.

Recommended for high-efficiency polishing of rings, pendants, small metal parts and jewelry components that require fast surface improvement.

A practical option for workshops that need fast finishing for small jewelry pieces, findings, chains, beads and metal accessories.

Designed for stable and gentle polishing of larger batches where consistent surface finishing is more important than aggressive material removal.
CDOCAST jewelry polishing equipment can be used after casting, rolling, cutting, stamping or CNC processing. It helps jewelry manufacturers improve product surface quality before final hand polishing, plating or packaging.

This is the part customers care about most: which polishing machine should they buy for their production requirement?
| Customer Requirement | Recommended Machine | Best For | Purchase Note |
|---|---|---|---|
| Fast surface improvement for small jewelry parts | Wet Eddy Current Polishing Machine | Rings, pendants, small castings, metal accessories | Good choice when productivity and polishing strength are both important. |
| Deburring and edge smoothing after cutting or casting | Centrifugal Polishing Machine | Beads, findings, chains, stamped parts | Useful for compact workshops and small-to-medium batch production. |
| Gentle finishing for many pieces at one time | Vibratory Polishing Machine | Mixed jewelry parts and regular production batches | Stable process, easy operation and suitable for daily finishing work. |
| Mirror-like final jewelry finish | Machine polishing + final manual finishing | High-end gold and silver jewelry | The machine reduces preparation work; final mirror polish may still need skilled finishing. |
For jewelry polishing equipment, the machine itself is only one part. Media selection, process time and part protection also affect the final polishing result.
We help match the polishing machine with your jewelry type, material and desired surface finish.
CDOCAST supplies machinery for precious metal production, casting, forming and finishing workflows.
We can suggest polishing time, media direction and production layout for daily workshop use.
The polishing machine can be matched with casting machines, rolling mills, presses and other production equipment.
Send us your jewelry material, part size, production quantity and target finish. CDOCAST will help you choose between wet eddy current, centrifugal and vibratory polishing machines.