Resistance Welders

Resistance Welders - Metal Joining Solutions for Various Industries

Resistance welders are widely used in the manufacturing industry for joining metal sheets and components. With over 30 years of experience in resistance welding, Heron is committed to developing high-tech joining technologies, including medium voltage capacitor discharge welding and medium frequency DC resistance welders. Our products cover best-in-class resistance welders: spot welders, projection welders, AC welders, seam welders, and butt welders, all offered at competitive prices. Manufactured from standard modules, Heron’s resistance welders are assembled flexibly to meet diverse application needs.

Projection welding

Process flow

Projection welding is a form of resistance welding that utilizes projections to concentrate the current and welding force on a small area. This allows for more efficient welding with reduced energy consumption and enhanced weld strength. This welding process offers various competitive advantages as it guarantees high-quality outcomes at a cost-effective rate.

Applications

Projection welding is employed for the purpose of joining nuts and studs onto automotive assemblies made of various steels, including high-strength steels, hot stamping steels, and galvanized steels. Projection welding can also be used for water heaters in appliance manufacturing. This welding method is especially well-suited for mass production.

Benefits of projection welding

01

Enhanced production

Simultaneous completion of multiple welds boosts production output.

02

Prolonged lifespan

Projection welding requires less heat and pressure, resulting in a prolonged lifespan of electrodes.

03

Versatile application

Suitable for a wide range of parts and components due to its adjustable multiple parameters.

04

Simplified operation

The process is user-friendly and utilizes automated equipment with simple parameter settings.

05

Clean finish

By minimizing heated area, projection welding reduces surface imperfections and achieves a refined appearance.

Spot welding

Process flow

Spot welding is the most commonly employed form of resistance welding. This method involves passing an electrical current through electrodes attached to two separate metal surfaces pressed together. This process generates heat, which causes the pieces to melt and fuse together, resulting in the formation of spot welds at one or more specific locations. Consequently, this method necessitates a higher amount of current and pressure.

Applications

Spot welding is commonly employed to joining large components or thin sheet stamping parts.

Benefits of spot welding

01

Efficient and user-friendly

Spot welding provides more expedient and simpler operation process, as it does not require special skills and reduce training requirements.

02

Cost-effective

With no flux or filler material require, spot welding significantly lowers material costs for welding operations.

03

Safer working conditions

Spot welding operations do not use an open flame to create joints, which decreases the likelihood of burns or fires.

Seam welding

Process flow

Seam welding is a variant of spot welding, with the primary distinction being that the welding electrodes consist of motor-driven wheels instead of stationary rods. The disc-shaped electrode wheels generate heat, which in turn produces a continuous weld as the parts are fed between them, resulting in a rolling resistance weld or a non-hermetic seam weld.

Applications

Because of its capability to create gas or liquid-tight joins, this process is well suited for manufacturing items such as steel fuel tanks for vehicles, as well as tin cans, radiators and steel drums. Seam welding can also be found in various types of barrel and exhaust systems.

Benefits of seam welding

01

Eco-friendly

Clear welds with no gas formation or welding fume, resulting in clean and high-quality results.

02

Durability

No need to use filler materials to create the join, ensuring airtight and watertight seals for improved durability.

03

Automation

Seam welding can be fully automated, making it a highly repeatable process.

Butt welding

Process flow

Butt welding is one of the simplest and adaptable forms of weld joint designs. The type of joint is create by placing two metal pieces end-to-end and subsequently welding them together along the joint. It is crucial to note that in a butt joint, the surfaces of the parts being joined are on the same plane and weld metal remains within the planes of these surfaces. Consequently, the parts are nearly parallel and do not overlap, unlike lap joints.

Applications

This stainless steel spot welder can be used with a wide range of materials, including steels, stainless steel, aluminum alloys, nickel alloys, and titanium. Designed for precision and durability, the stainless steel spot welder delivers consistent, high-quality welds across diverse industrial applications.

Benefits of butt welding

01

Enhanced strength

Achieves high strength through complete fusion, ensuring durable and reliable joints.

02

Distortion control

Ensures minimal distortion during the welding process, maintaining the structural integrity of the parts.

03

Economical

Butt welding provides an economical welding method without compromising on quality, making it a cost-effective option for budget-conscious projects.

Products Category

Heron is the leading resistance welder manufacturer, offering capacitor discharge projection welders, MFDC spot welders, AC welders, and seam welders. With advanced welding technology, consistent performance, and in-house consumables (electrodes, controls, transformers), Heron provides an all-in-one welding solution with superior service.