Capacitor Discharge Spot Welding Machine

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DN-1000 compact capacitor discharge spot welding machine for precision metal welding applications DN-1000
DR-2000J capacitor discharge spot welder for stable energy storage welding of metal components DR-2000J
DTR-3000J energy storage spot welding machine for low distortion precision metal joining DTR-3000J
DTR-5000J capacitor discharge spot welding equipment for stainless steel steel and hardware fabrication DTR-5000J
DTR-6000J capacitor discharge spot welding machine with control cabinet for automated industrial welding DTR-6000J
DTR-10000J high energy capacitor spot welding machine for strong welds and continuous production DTR-10000J
TR-20000J industrial capacitor discharge spot welder for automotive appliance and metal fabrication TR-20000J
TR-30000J heavy duty capacitor discharge spot welding machine for high strength metal welding TR-30000J

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Product Details:
Product Details:

1000J to 30000J Capacitor Discharge Spot Welding Machine

The 1000J to 30000J Capacitor Discharge Spot Welding Machine series covers precision spot and projection welding across a wide range of conductive metal components. Spanning multiple energy levels — from compact machines suited to fine precision work up to heavy-duty industrial units — the series gives manufacturers a flexible way to match equipment to workpiece size, material thickness, required weld strength, and production volume, rather than forcing every job onto a single fixed-energy machine.

At the core of each unit is high-efficiency capacitor energy storage: electrical energy builds up in the capacitor bank, then discharges instantly as a concentrated high-current pulse. Because the cycle is so brief, the resulting weld forms firm, clean, and uniform while heat input, surface discoloration, and part deformation all stay well contained. That combination is what makes the series a practical fit for applications where weld strength, visual finish, dimensional accuracy, and repeatable quality all carry weight in the final part.

Structurally, each machine pairs a rigid vertical frame with a precision welding head, a high-conductivity copper electrode system, and an advanced control unit. Stable pressure delivery and efficient current transmission together keep welding performance consistent through long, continuous production runs. On the control side, welding energy, discharge time, pressure, and other process parameters can all be tuned to match material type, part thickness, weld position, and target joint strength.

Model options across the series include DN-1000J, DR-2000J, DTR-3000J, DTR-5000J, DTR-6000J, DTR-10000J, TR-20000J, and TR-30000J. Lower-energy models are built for small and medium precision parts, while the higher-energy end of the range is designed for larger workpieces, thicker materials, and welds that need to carry more structural load. Having this many energy steps available makes it far easier to line up the welding process with the actual geometry and requirements of the product, instead of compromising on either end.

Materials compatible with the series span carbon steel, stainless steel, galvanized steel, iron, copper alloys, aluminum alloys, brass, plated metal sheets, stamped parts, and other formed metal components. In practice, that range shows up across automotive components, home appliance parts, electronic assemblies, electrical terminals, hardware fittings, metal brackets, busbar components, sheet metal structures, and precision metal processing more broadly.

Yongkang Jiaxiao Welding Automation Equipment Co., Ltd. brings 30 years of experience to the research, development, manufacturing, sales, and service of resistance welding machines, special welding machines, automatic welding machines, and automated stamping equipment. That work is backed by a dedicated technical team, ERP-managed production, certified quality control, and inspection carried out at every stage — supporting welding equipment built for copper, aluminum, iron, stainless steel, and a range of other metal materials.

Beyond the base machine, the series can be configured with dedicated welding fixtures, custom electrode tooling, automatic feeding systems, rotary positioning units, multi-station welding workstations, and fully integrated welding automation systems. Both machine structure and welding process configuration can be developed directly from a customer's product drawings, material properties, welding point layout, production rhythm, and process standards.

Fast discharge response, stable welding output, minimal heat influence, straightforward operation, and energy-efficient performance define the 1000J to 30000J Capacitor Discharge Spot Welding Machine series as a whole — giving manufacturers dependable welding results whether the job calls for delicate precision components or high-strength metal assemblies.

Machine Structure

Rigid Vertical Frame The vertical frame keeps both the welding head and the workpiece firmly supported while pressure is applied and current discharges. That stability is what keeps electrode alignment on point, cuts down on vibration, and makes weld quality hold steady cycle after cycle.
Capacitor Energy Storage System Built to deliver a high-current pulse in a very short window, the capacitor energy storage system is what drives strong weld formation without pulling continuous heavy load from the power supply. That short discharge time also keeps heat from spreading beyond the immediate welding area.
Precision Welding Head Before and during discharge, the welding head keeps pressure on the workpiece steady and controlled. Getting that pressure right is directly tied to weld strength, how well the nugget forms, and whether results stay repeatable from one part to the next.
Copper Electrode Structure Current transmission relies on high-conductivity copper electrodes, which keep energy loss to a minimum as current reaches the weld point. Because the electrode structure can be shaped around a product's specific geometry, welding position, and contact area, it adapts to the part rather than forcing the part to adapt to a fixed tooling design.
Advanced Control System Different materials and welding jobs call for different settings, and the control system is built to accommodate that. Operators can dial in welding energy, discharge time, and other process conditions directly, which is what keeps welding stable and production efficient across varying job requirements.

Model Range

Model Range Welding Capacity Typical Use
DN-1000J Light-duty precision welding Small metal parts, electronic components, thin conductive sheets
DR-2000J Small to medium welding capacity Hardware parts, terminals, precision stamped components
DTR-3000J Medium energy output Appliance parts, brackets, metal fittings
DTR-5000J Medium-strength welding Stainless steel parts, galvanized sheets, formed metal parts
DTR-6000J Stronger welding capability Larger components, thicker metal pieces, structural fittings
DTR-10000J High-energy welding Heavy hardware parts, conductive components, industrial assemblies
TR-20000J Heavy-duty welding Larger workpieces, high-strength joints, projection welding parts
TR-30000J Extra high-energy welding Thick materials, large contact areas, demanding metal assemblies

Suitable Materials

  • Carbon steel
  • Stainless steel
  • Galvanized steel
  • Iron
  • Copper alloys
  • Aluminum alloys
  • Brass
  • Plated metal sheets
  • Conductive metal strips
  • Precision stamped parts
  • Formed metal components
  • Sheet metal structures

Applications

  • Automotive components
  • Home appliance parts
  • Electrical terminals
  • Electronic assemblies
  • Hardware fittings
  • Metal brackets
  • Sheet metal components
  • Busbar parts
  • Conductive connectors
  • Stainless steel products
  • Copper and aluminum components
  • Precision stamped parts
  • Projection welding parts
  • Metal processing components
  • Customized welding automation systems

Product Features

  • Energy range spans 1000J to 30000J, covering both precision and heavy-duty applications
  • Built on high-efficiency capacitor energy storage technology
  • Delivers a fast, high-current discharge pulse for each weld
  • Holds steady performance across both spot welding and projection welding
  • Keeps heat input low, which limits deformation on the workpiece
  • Produces a clean weld appearance backed by strong joint formation
  • Rigid machine structure holds up under long-term, continuous operation
  • Precision welding head keeps pressure control stable throughout the cycle
  • High-conductivity copper electrode system minimizes energy loss during discharge
  • Advanced control system allows parameters to be adjusted per job
  • Energy-saving design keeps impact on the power supply to a minimum
  • Straightforward to operate, with process setup that doesn't require extensive training
  • Works equally well on small precision parts and larger heavy-duty metal assemblies
  • Compatible with customized fixtures and integration into automated production lines

Custom Automation & Tooling

Jiaxiao provides customized welding equipment and automation systems according to workpiece structure, material thickness, welding point layout, production rhythm, and process requirements.

Available configurations include:

  • Dedicated welding fixtures
  • Custom copper electrodes
  • Special welding tooling
  • Automatic feeding systems
  • Rotary positioning devices
  • Multi-station welding workstations
  • PLC control systems
  • Touchscreen operation interfaces
  • Safety guarding systems
  • Integrated welding automation lines
Each system is developed to support stable welding quality, accurate positioning, efficient operation, and long service life in industrial production environments.
About Us
Yongkang Jiaxiao Welding Automation Equipment Co., Ltd.
Since its establishment 30 years ago, Yongkang Jiaxiao Welding Automation Equipment Co., Ltd. has specialized in the research, development, manufacturing, sales, and service of resistance welding machines, specialized welding machines, 1000J to 30000J Capacitor Discharge Spot Welding Machine , and automated stamping equipment for materials such as copper, aluminum, iron, and stainless steel. The Capacitor Discharge Spot Welding Machine factory boasts a dedicated R&D team led by experts and comprised of diverse engineers. Its products have passed both the Chinese 3C and European CE certifications, and the company holds dozens of national patents. The company is a leading domestic manufacturer of resistance and automatic welding machines.
Certificate Of Honour
  • Certificate for New Product Evaluation of Class I Energy Efficiency Resistance Spot (Projection) Welding Machine
  • Honorary Certificate of Innovative Small and Medium-sized Enterprise of Zhejiang Province
  • Honorary Certificate of Specialized, Sophisticated, Unique and New Small and Medium-sized Enterprise of Zhejiang Province
  • High-tech Enterprise
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