Q.What is the MAGIC-MT Series?

The MAGIC-MT Series is a magnetic tumbler that uses a powerful rotating magnetic field to rapidly move fine stainless steel polishing pins.

The pins polish, clean, and deburr jewelry and precision metal parts. They repeatedly contact external surfaces as well as grooves, gaps, chain links, and other complex areas that are difficult to reach by hand.

Q.What applications is it suitable for?

The MAGIC-MT Series can be used for:

• Enhancing the luster and finish of jewelry surfaces
• Removing fine burrs after casting or machining
• Refining rough surfaces and machining marks
• Polishing complex shapes such as chains, rings, and pendants
• Surface conditioning and a peening effect from repeated pin contact

Q.What types of workpieces can be polished?

Typical applications include:

• Rings and ring components
• Chains, necklaces, and bracelets
• Pendants and earrings
• Small precision metal parts
• Complex parts with grooves, gaps, and recessed areas

Before processing, check the material, surface condition, plating, and stone settings. We recommend testing a small quantity first.

Q.What materials can be processed?

The machine can be used for post-processing workpieces made of gold, silver, platinum, stainless steel, brass, and other metals.

Results may vary depending on the material and surface condition. Begin with a low speed and short operating time when testing a new workpiece.

Q.Can it polish the inside of rings and narrow gaps?

Yes. The fine polishing pins can move through narrow grooves, gaps, and chain links.

This makes the machine particularly effective for polishing the inside of rings and detailed areas that are difficult to finish by hand.

Q.What are the specifications of the supplied polishing pins?

The supplied polishing pins are Ø0.5 × 5mm, made in South Korea from STS303 stainless steel.

They are suitable for general jewelry applications such as rings, pendants, and chains.

Q.Can other polishing pin sizes be used?

The following pin sizes may be selected according to the shape of the workpiece and the required polishing intensity:

• Ø0.3 × 5mm: Fine chains, narrow gaps and grooves, and delicate jewelry
• Ø0.5 × 5mm: General jewelry such as rings, pendants, and chains
• Ø0.8 × 5mm: Relatively large or durable workpieces requiring stronger polishing action

Polishing performance may vary depending on the pin size, material, manufacturing accuracy, and surface condition. We therefore recommend using genuine MAGIC polishing pins.

If non-genuine polishing pins are used, compatibility with the machine and the resulting polishing quality cannot be guaranteed.

Q.What is required for magnetic tumble polishing?

Magnetic tumble polishing generally requires the following four items:

1. Workpieces
2. Polishing pins
3. Water
4. Dedicated polishing solution

Place the workpieces, polishing pins, water, and polishing solution together in the polishing barrel.

Q.What type of polishing solution should be used?

We recommend using a dedicated polishing solution for jewelry magnetic tumblers.

If a dedicated solution is unavailable, a small amount of mild dishwashing detergent may also be used. It helps remove contamination and allows the polishing pins and workpieces to move more smoothly inside the barrel.

Use only a small amount, as excessive detergent may produce too much foam or cause the liquid to overflow.

Do not use strong acids, strong alkalis, flammable solvents, or other liquids that may damage the barrel or machine.

Q. Is polishing solution included with the machine?

The polishing pins are included as a standard accessory, but polishing solution is not included.

A jewelry magnetic-tumbler polishing solution or mild dishwashing detergent should be prepared separately.

Q.How much water and polishing solution should be added?

Add water and polishing solution according to the recommended amount for each model. Do not exceed the permitted fill level of the barrel.

Begin with a small amount of polishing solution or mild detergent and confirm that the pins and workpieces circulate smoothly. Excessive liquid or detergent may cause foaming or overflow.

Q.Can multiple workpieces be polished at the same time?

Yes. Multiple small workpieces can be processed together within the capacity of each model.

However, pin movement and polishing results may vary depending on the size, shape, and quantity of the workpieces. Do not overload the barrel, and make sure that the pins and workpieces can move freely.

Chains and very thin parts may tangle or deform, so test a small quantity first.

Q.How long does a typical polishing cycle take?

Jewelry polishing can generally achieve satisfactory results in approximately 10 to 30 minutes.

The required time may vary depending on the material and surface condition of the workpiece, the size and quantity of the pins, the polishing solution, the speed, and the desired result. Begin with a short test cycle and extend the operating time as needed.

Q.How should the speed be set?

Use the following settings as general starting points:

• Thin and lightweight parts: Start at a low speed and check for deformation, tangling, or excessive impact.
• General jewelry: Start at a medium speed and check the pin flow and surface finish.
• Complex grooves and gaps: Use a medium speed and confirm sufficient circulation and pin access.
• Parts requiring heavy deburring: Increase the speed gradually and check for over-polishing or edge damage.

Before increasing the speed, check the load, pin flow, water level, and condition of the pins.

Q.Can the speed and operating time be adjusted?

Yes. The speed can be adjusted according to the size, shape, and material of the workpiece.

The timer can be set from 0 to 60 minutes, and continuous operation is also available. During extended continuous operation, periodically check the condition and temperature of the machine and polishing barrel.

Q.What is the Stop & Go function?

The Stop & Go function temporarily stops and restarts the machine to redistribute the polishing pins and workpieces.

It helps prevent chains and complex parts from clustering in one area or remaining in a fixed flow pattern, supporting more even polishing results.

The Stop & Go interval can be adjusted from 20 to 50 seconds using the control knob.

Q.Can stone-set jewelry be processed?

Before polishing, make sure that all stones and prongs are securely fixed. Loose stones or settings may become detached or damaged during operation.

The MAGIC-MT Series is not recommended for pearls or other organic gemstones with delicate surfaces, as repeated contact with the polishing pins may scratch or damage them.

For other stone-set jewelry, test one item first using a low speed and short operating time.

Q.Can stone-set jewelry be processed?

Before polishing, make sure that the stones and prongs are securely fixed.

Loose stones or settings may become detached or damaged during operation. We recommend testing a small quantity first.

Q.Can the polishing process be monitored during operation?

Yes. The transparent polishing barrel allows users to observe the movement of the pins and workpieces and check the amount of material inside.

At the beginning of operation, confirm that the pins and workpieces circulate smoothly and that there is no abnormal noise, vibration, or leakage.

Q.Can the magnetic tumbler provide the final finish?

The MAGIC-MT Series can remove fine burrs and machining marks while improving the luster and overall finish of jewelry surfaces.

Depending on the material, initial surface condition, and desired finish, an additional buff-polishing process may still be required.

Q.What should I do if the polishing result is uneven?

Check the operating conditions in the following order:

1. Total amount of workpieces and pins
2. Amount of water and polishing solution
3. Cleanliness and condition of the pins
4. Operating speed
5. Operating time

If the result is uneven, check the load and pin flow before simply increasing the speed.

Q.What should I do if chains become tangled?

Reduce the number of chains processed in one batch and test again at a lower speed.

Using the Stop & Go function can also help redistribute the pins and chains and reduce clustering.

Q.What should I check if the pins do not move smoothly?

Check the following:

• Whether too many workpieces or pins have been loaded
• Whether the amount of water is appropriate
• Whether the pins are contaminated with debris or metal dust
• Whether the pins and workpieces have clustered in one area

Adjust the load and water level as needed, and clean the pins thoroughly.

Q.How should the polishing pins be maintained?

After use, rinse the pins and polishing barrel with clean water as necessary to remove polishing residue and contamination.

Contaminated pins may reduce polishing performance or leave stains on workpieces. For long-term storage, clean and dry the pins thoroughly and protect them from foreign matter.

Replace the pins if their size or shape becomes excessively deformed or if contamination cannot be removed.

Q.When should the polishing solution be replaced?

Replace the polishing solution when it becomes contaminated with metal dust or polishing residue.

When replacing the solution, rinse the polishing barrel and pins with clean water as necessary.

Q.What is the difference between the MT-110, MT-135, and MT-180?

The three models differ in polishing barrel size, machine dimensions, weight, and power consumption.

All models support speed control, a 0–60-minute timer with continuous operation, the Stop & Go function, and a barrel with a pin-dispersion structure.

Q.Which model should I choose?

Select a model based on the size and quantity of the workpieces, the required batch capacity, and the operating environment.

• MT-110: Suitable for retail stores, small workloads, and locations with limited installation space
• MT-135: Suitable for general jewelry workshops and regular production
• MT-180: Suitable for larger workloads and production environments

For specific applications, we recommend consulting an authorized MAGIC distributor before selecting a model.

Q. How many rings can be engraved in a single session? Is there a weight (kg) limit?

The processing capacity varies depending on the size, weight, and shape of the items.
Therefore, we provide general guidelines based on the number of standard rings that can be engraved per session.

Model Recommended Capacity per Session

MT110 : Up to 8 rings
MT130 : Up to 15 rings
MT180 : Up to 30 rings

For larger or heavier rings, please reduce the number of rings processed per session.