How Our Styli Are Made

These ABS resin pellets are the raw materials used to create the knob, an essential part of the stylus. The resin and colorant were carefully blended for 20 minutes using a mechanical mixer until precisely the specified color.

There are around 200 basic ABS resin color samples which are stored and cast into molds once an order is received.

One of our employees skillfully making the holder, the key piece that holds the oscillation system parts.

This injection molding machine is where the 200 degrees Celsius molten resin is injected into a metal mold.

There is a slight difference in the level of heat (170 to 230°C) required for the resin to flow, since the size of the metal mold depends on the shape of the knob. Also, different color resin melt at different degrees. Controlling not only temperature but pressure is also crucial.

Where up to 2000 types of molds used in injection molding machinery are regularly organized and maintained.

A knob that was precisely made to fit the holder.
If the knob and holder are not made according to set specifications, neither will attach onto the cartridge.

Molded knobs are sorted by mold number, and stored.
We assemble the oscillation system parts once we receive an order.

Here, our custom made jig is cutting a pipe that will become the cantilever.

Pressing the ends of the cantilever forms the base where the diamond tip is placed with a custom made jig. Placing the diamond tip is perhaps the most difficult segment of the production process.

The cantilever, with an attached diamond tip, is placed on a custom made holder to be manually inspected with an optical microscope for irregularities in the tip’s shape and placement.

Other parts that need to be attached to the stylus, such as a cleaning brush in front of the tip, are assembled.

A custom made jig assembles the integrated diamond tip and cantilever into the holder and knob.

The stylus then becomes magnetic via the magnetization machine.

After the stylus is magnetized, an inspection is enforced on all items before shipment to test if sound signals are faithfully reproduced. Inspection is done by ear and oscillograph.