Products

Fine Spot Welders

Fine spot welding (resistance welding) is a joining method using heat generated from resistance caused by placing electrodes in contact with workpieces to apply force and let current flow into workpieces. It is an eco-friendly joining method without using solder and is employed in a variety of industrial fields.

Precision welding is the specialty of AMADA MIYACHI's fine spot welders. AMADA MIYACHI's technologies are especially used for welding of sensors, ECUs, bus bars, batteries, and motors in a variety of industries such as home appliance, automobile, mobile telephone, and medical equipment industries.

AMADA MIYACHI has a lot of knowledge and experience in fine spot welding techniques and dominate the market in areas requiring fusing, seam welding, projection welding and reflow welding.

AMADA MIYACHI's extensive lineups including welding power supplies, transformers, weld heads, and electrodes enable you to find the ideal system for your applications.

We also offer equipment for the quality control of fine spot welding, as well as pulse heat controllers, which make plastic welding possible, and our own unique pulse TIG welders (for arc welding).

Additionally, we have developed automated or semi-automated process machines that incorporate fine spot welders in order to respond to an increasingly diverse range of customer needs.

Fine Spot Welding Power Supply

Transistor-controlled welding power supply

Transistor-controlled welding power supply

These units offer ultra-precise welding due to transistor control which enables reducing splash by fine-adjusting the weld current. Its fast current-control speed facilitates the welding of extra fine wire, such as that used as the filaments for electric bulbs. It is ideally suited to the welding of high resistance materials, such as molybdenum or tungsten.

DC Inverter-controlled welding power supply

DC Inverter-controlled welding power supply

These units supply continuous power efficiently, because, unlike an AC-type power supply, it does not have any current downtime. Consequently, it offers a short weld time with excellent thermal efficiency, resulting in few heat-affected areas, and low power consumption. As it can be used with small welding transformers, it is suitable for incorporation into automated machines.

AC Inverter-controlled welding power supply

AC Inverter-controlled welding power supply

These unit not only have inverter-type features of excellent thermal efficiency and stable weld quality, but also have a minimal Peltier effect (polar effect) due to the alternate current, enabling AC-current welding transformers to be used. It is ideally suited to fusing processes.

Capacitor welding power supply

Capacitor welding power supply

This unit is best suited for welding materials with high thermal conductivity such as aluminum and copper since it charges current in a capacitor and discharges at once to obtain a large amount of current. Stable welding can be achieved even if input power is low.

AC controlled welding power supply

AC controlled welding power supply

These unit are the most commonly used type of welding power supply. With a simple structure, it is easy to use, offers excellent durability, and is inexpensive. It is widely used for welding materials made of iron, a material that is relatively easy to weld.

Weld Head / Checker and Tester

Weld Head

Weld heads, which are installed in fine spot welders, hold electrodes and perform welding by applying force to workpieces. We provide servomotor, pneumatic, and foot-operated welding heads, as well as seam welding heads and various types of accessories.

Checker and Tester

Checker and Tester

Weld checkers are essential for maintaining a stable weld quality as they enable you to control the weld current, voltage, welding time, applied force, and displacement. We highly recommend our various types of weld checkers and testers.

Pulse TIG Welder

Pulse TIG welder

Pulse TIG welder

DC type pulse TIG welders are the perfect solution for arc welding of precision devices and minute parts due to that clean weld quality can be obtained without heat-affected area.

Pulsed Heat Controller

Pulsed Heat Controller

Pulse TIG welder

Pulsed heat controller controls pulsed current to obtain optimum heat for bonding multiple parts.Best suited for precision reflow soldering, ACF soldering and heat staking.