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Desktop AC Precision Spot Welding Machine for Small Precision Components

Desktop structuredesign,space saving,lowcurrent,more precise control.
Product model: DN-25T
Rated capacity: 25kVA
Load duration rate: 20%
Electrode stroke: 50mm
Maximum short-circuit current: 15000A
Maximum applied pressure: 750N
 
PDKJ Desktop AC Precision Spot Welder is designed for precision welding of copper terminals, silver contacts, wire joints, coils, and small metal assemblies. Compact structure, stable current control, and high welding consistency.
Availability:
Quantity:

Product Overview

The Desktop AC Precision Spot Welding Machine is specially developed for high-precision welding of small metal components, thin sheet materials, and electronic conductive parts. Compared with conventional resistance welding equipment, this machine provides more stable current control, reduced welding deformation, and improved welding consistency for miniature workpieces.

Designed with a compact desktop structure, the machine is ideal for electronics manufacturing workshops, hardware processing factories, laboratory applications, and automated assembly lines where precision and repeatability are critical. It is widely used for welding copper terminals, nickel tabs, stainless steel brackets, relay contacts, silver contacts, micro hardware parts, and electrical connectors.


The optimized AC welding control system ensures stable heat output during welding while minimizing burn marks, excessive splash, and material deformation. The equipment is especially suitable for thin conductive materials that require high welding quality and excellent surface appearance.

Why Choose This Desktop AC Precision Spot Welder

Stable Welding Output for Precision Components

The machine adopts a precision microcomputer control system that accurately regulates welding current and welding time. Even when welding highly conductive materials such as copper or silver, the equipment maintains stable weld formation and consistent conductivity.

Easy Operation & Fast Parameter Adjustment

Operators can quickly adjust welding current, welding pressure, and welding time according to different materials and thicknesses, improving production flexibility and reducing setup time.

Low Welding Deformation

For thin sheet metal and miniature workpieces, overheating can easily cause deformation or surface discoloration. This desktop spot welder reduces thermal impact during welding, helping maintain product appearance and structural integrity.

Consistent Electrode Pressure

The direct-pressure mechanism improves welding stability by ensuring uniform electrode force during continuous production. This helps reduce false welding and unstable weld points.

Compact Desktop Design

The space-saving desktop structure is suitable for factories with limited workshop space and can be easily integrated into automated production lines or manual workstations.

Energy-Saving Cooling System

The integrated circulating water-cooling structure improves heat dissipation efficiency, extends electrode life, and supports stable long-term operation.

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Applicable Welding Materials

Material

Recommended Thickness

Welding Characteristics

Nickel Sheet

0.1–0.3mm

Stable weld nugget formation

Stainless Steel

0.2–1.0mm

Low deformation

Copper Terminals

0.3–1.2mm

Excellent conductivity

Silver Contacts

0.1–0.5mm

High precision welding

Aluminum Parts

0.2–1.0mm

Stable heat control

Thin Hardware Components

0.3–1.5mm

Smooth welding appearance

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Advantages of AC Precision Spot Welding

Compared with traditional welding methods, AC precision spot welding provides several advantages for small precision components:

· Lower equipment investment cost

· Stable welding performance for thin materials

· Suitable for continuous production

· Easy maintenance

· Reliable welding quality

· Strong adaptability for multiple metal materials

· Ideal for precision electronic components


For precision welding applications, stable current delivery and low circuit resistance are critical factors affecting weld quality. Industrial spot welding systems require high-current output and precise timing control to achieve consistent weld formation.

Technical Parameters

Parameter
Specification
Model
DN-25T
Rated Capacity
25KVA
Input Power
2 Phase 380V
Maximum Short-Circuit Current
15000A
Electrode Stroke
50mm
Maximum Pressure
750N
Cooling Water Flow
4L/min
Arm Extension Size
120mm × 115mm
Machine Structure
Desktop Type
Cooling Method
Water Cooling
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Why Choose PDKJ

PDKJ Welding Technology focuses on precision resistance welding and automated welding solutions for industrial manufacturing applications.

PDKJ provides:


· Customized welding solutions
· Free welding sample testing
· Professional technical support
· Equipment installation guidance
· Welding process optimization
· Automation integration support
· After-sales technical service

The company has extensive experience in spot welding, projection welding, seam welding, and automated welding systems for electronics, hardware, automotive, and new energy industries.

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Case Application 1

Customer Success Case

Industry:

Electronics Manufacturing


Workpiece:

Copper Terminals for Power Strips


Challenge:

Unstable weld quality and surface discoloration.


Solution:

PDKJ DN-25T Desktop AC Precision Spot Welding Machine.


Result:

Stable weld consistency, improved production efficiency and reduced rejection rate.

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FAQ

Can this machine weld copper terminals?

Yes. The machine is designed for high-conductivity materials such as copper terminals, copper connectors, and silver contacts. The precision current control system helps maintain stable weld quality.

Is this spot welder suitable for thin sheet metal?

What industries commonly use desktop precision spot welders?

Can the welding parameters be adjusted?

Does the machine support continuous production?

What materials can be welded?

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Related Products

The company possesses an experienced R&D team capable of designing and manufacturing a wide range of resistance welding machines tailored to customer requirements.

Get a Custom Welding Solution

If you need a precision welding solution for small metal components, electronic terminals, battery tabs, or thin sheet materials, PDKJ can provide customized welding equipment and process support based on your production requirements.

Contact the PDKJ technical team today for:
· Free Welding Sample Test
· Welding process evaluation
· Equipment selection recommendations
· Customized automation solutions
· Technical consultation

Mob:+86-136-3176-5713

E-mail:pdkj@gd-pw.com

Contact Us

About Our Company

Founded in 2006, PDKJ is a professional supplier of welding automation solutions. The company has passed the ISO9001 international quality management system certification, has more than 90 officially authorized and applied national patents, and a number of core technologies in the welding field fill the technical gap at home and abroad. It is a national high-tech enterprise.

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 Phone: +86-13631765713
 E-Mail:  pdkj@gd-pw.com
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