Custom K10 Micro Motor Development Case Study

Customer RFQ and Initial Sample Matching

The buyer was already purchasing similar motors and needed a cost-controlled alternative for their own product assembly. The first RFQ target was clear: match the required micromotor performance while keeping the cost competitive for larger-volume use.

We first provided a K10 motor reference and confirmed the approximate performance direction, including a 25,000 rpm reference. After the buyer requested a datasheet, we prepared specification information and tested multiple samples before couriering the first set.

Feedback After Sample Testing

After receiving and checking the first samples, the buyer reported practical issues: oil inside the motor and insufficient performance for their application. They also clarified a preferred resistance target and operating voltage.

• The existing samples contained oil, while the buyer’s current motors did not.
• The buyer requested a target around 10 Ω; the received samples were closer to 11–12 Ω.
• The application voltage was confirmed as 2.3 V.
• The motor had to fit the buyer’s existing product assembly and production process.

Based on this feedback, we treated the project as an engineering adjustment rather than a simple replacement order. The motor specification, lubrication condition and sample validation were reviewed again before the next sample stage.

Pin, Cable and Socket Variants

After the initial motor verification, the project expanded from the motor body itself to the way the motor would be connected inside the buyer’s product. The buyer requested different versions: motor with pin, motor with cable, cable with socket and matching connector sets.

This stage was important because the final problem was not only motor performance. The connector and socket fitting also had to match the buyer’s assembly method.

Dimensional Checks and Connector Improvement

During assembly testing, the buyer found socket and terminal fitting issues. The discussion moved into dimensional verification and supplier improvement. We checked the dimensional difference between the technical document and the actual sample, then prepared additional verification samples to help the buyer confirm the revised direction.

Batch Production and Repeat Orders

After sample rounds and production coordination, the project moved into batch orders. The communication included 1,000 pcs test order planning, 3,000 pcs shipment coordination, 10,000 pcs order discussion and later 20,000 pcs production planning.

For a custom component like this, production planning was as important as the unit price. Lead time, raw material preparation, split shipment, free replacement samples and customer production schedule all had to be managed together.

Later Custom Terminal Motor Direction

As the buyer’s production needs evolved, the project also moved toward a customized terminal motor version. The new direction involved a plastic socket, terminal adjustment, inward-bent motor pins and sample cost discussions before larger orders.

This is a typical B2B RFQ development path: the first purchase starts from a small component, but the real value comes from engineering response, sample iteration and stable production support.

What This Case Shows