Jewelry Micromotor

1. Jewelry Micromotor Models and Applications

2. Technical Specifications

Handpiece Details

• AT-CM-045 N III: SH37L1 45K, SH37LN 45K, and 102L 35K handpiece options. Maximum torque: 3.5 N·cm / OEM. Maximum speed options: 35,000 / 45,000 RPM / OEM.
• AT-CM-033: AT-A2 brushless handpiece with a 102 single-position bearing structure. Maximum torque options: 3.5 / 7–8 / 10 / 12 N·cm. Maximum speed options: 35,000 / 50,000 / 60,000 / 90,000 RPM.
• AT-CM-044 A4: Brushless motor, 12 N·cm maximum torque, 50,000 / 60,000 RPM options, and 2.35 / 3 / 3.175 / 4 / 6 mm chuck options.
• AT-CM-044 A3/A7: Brushless motor, 10 N·cm maximum torque, 90,000 / 60,000 RPM options, and a 103 double-position bearing structure.

The AT-CM-045 N III and AT-CM-033 offer 2.35 mm, 3.0 mm, and 3.175 mm chuck options. The AT-CM-044 A4 additionally offers 4 mm and 6 mm options.

3. Handpiece and Foot-Control Options

Handpiece and foot-control configurations give customers different ways to match the machine to their jewelry processing tools and working methods.

We offer three foot-control arrangements across the product range:

• ON/OFF foot pedal: For starting and stopping the machine.
• Variable-speed foot pedal: For foot-operated speed adjustment.
• Knee-controlled variable-speed pedal: An optional upgrade for the AT-CM-033 and AT-CM-044, replacing the standard small ON/OFF pedal.

The AT-CM-045 N III also lists ON/OFF and variable-speed foot-control configurations. Its foot pedal specifications include AC 125V 15A / DC 14V 15A.

4. OEM Customization and Packaging

We offer specific OEM/ODM options for our jewelry micromotor products.

Branding and Appearance

• Logo customization
• Product color customization
• OEM-branded packaging

Electrical Configuration

• Input voltage customization
• Plug-type selection
• EU, USA, and CN plug options for the AT-CM-045 N III
• Other plug types through OEM arrangements or a suitable adapter
• OEM output-voltage options on the AT-CM-033 and AT-CM-044

Product Configuration

• Handpiece selection
• Chuck-size selection
• Foot-pedal upgrades on applicable models

Our standard packaging consists of an English-language, unbranded inner box and an outer carton. OEM-branded packaging is also available.

5. Manufacturing and Product Supply

Yongkang Zorin Industry Technology Co., Ltd. was established in 2014 in Yongkang, Zhejiang, China. We manufacture electric micromotors and related equipment.

Our manufacturing and product development experience includes high-speed electric grinding tools, core component development, machining and assembly processes, micromotor control, and handpiece structures.

In addition to jewelry polishing micromotors, our product range includes nail drill machines, dental laboratory micromotors, handpieces, and related accessories. We supply complete machines, handpieces, and replacement accessories for our product range.

Before shipment, we carry out basic checks covering product function, appearance, and performance.

Our customer support includes product consultation, model selection, sample and bulk-order support, handpiece and drill-bit replacement parts, and basic technical guidance.

Sample and Production Time

Our listed product pages indicate:

• Sample time: 3–15 days.
• Production time: 3–15 days for listed products.
• OEM production: Approximately 10–30 days, depending on the design.