Manufacturing Flow

We are not only developing and designing motors, but also manufacture coils, spindles, and other motor-related parts in-house.

Here, we will explain the flow of our motor manufacturing.

1. Coil fabrication

Our company has been doing everything by hand since its establishment. This allows us to manufacture motors with desired specifications from small lots.

Only a few companies in the world have their manual lines for coil manufacturing.

Coil manufacturing process

① Coil winding

② Coil iron core production

③ Installation of coil iron core slot

④ Varnish impregnation

⑤ Installation of lead wire

2. Parts processing

Spindle motors are required to operate at a higher speed with the times. To improve the speed, in addition to the rotating parts such as spindles and bearings, it has become necessary to improve the precision of auxiliary parts such as frames and housings. Currently, we are manufacturing a vertical machining center with a special jig for frame processing.

We are also equipped with a multi-tasking machine which can process in five sides, enabling high-precision, small-lot complex shape processing.

3. Spindle

The motor shaft is called the “shaft” or “spindle”, which is the most important part for rotating at high speed and high precision.

A rotor is built in the shaft, and it rotates by the rotating magnetic field generated by the stator. The higher the speed, the greater the imbalance of the rotating body and the vibration. Our specialized balancing machine removes this imbalance as much as possible.

4. Assembly

Most of the spindle motor is assembled manually. Workers, who are familiar with the structure of the bearings, will carefully assemble each one.

Even with the machine advances, this is not the case. It can be said that long-term technology is the most needed process.

5. Inspection

All products are inspected before shipping.

For inspection items, in addition to mechanical inspection, we also perform electrical tests.

For products that require high accuracy, we inspect it by a three-dimensional coordinate measuring machine.