Medium Frequency Resistance Spot Welding Machine 100KVA Copper Wire Welding

Name: Medium Frequency Resistance Spot Welding Machine 100KVA Copper Wire Welding
Brand: Chengdu Xinwei Welding Technology Co., Ltd.
Price: 19.00 USD
Availability: InStock

Quality Medium Frequency Resistance Spot Welding Machine 100KVA Copper Wire Welding factory

Basic Properties

Place of Origin:Sichuan, China

Brand Name:Xinwei

Certification:ISO, CE, RoHS

Trading Properties

Minimum Order Quantity:1 set

Price:$14,000-24,000 / set

Standard Packaging:wooden box

Delivery Time:25-35working days

Payment Terms:L/C,D/A,D/P,T/T

Supply Ability:5 sets/month

Specifications

Product Name:	Medium Frequency Resistance Spot Welding Machine 100KVA Copper Wire Welding	Rated Capacity:	100/160/200/250 KVA
Max Welding Thickness:	5.0+5.0 Mm (DN(B)-200 Model)	Duty Cycle:	50%
Power Supply:	3-Phase AC 380V (220V Available On Request)	Welding Material:	Copper Wire, Sheet, Pipe; Low-carbon Steel, Stainless Steel, Coated Steel
Machine Type:	Copper Spot Welding Machine	Function:	High-efficiency Resistance Spot And Projection Welding
Condition:	New	Warranty:	1 Year
Highlight	resistance projection spot welding machine , projection spot welding machine 100kva , industrial spot projection welding machine

Product Description

Medium Frequency Resistance Spot Welding Machine 100KVA Copper Wire Welding

Video Demonstration

Product Overview

This medium frequency resistance spot welding machine, rated at 100KVA, is a fixed spot and projection welding system engineered for high-efficiency copper wire welding. It integrates a rigid tree-style frame, linear guide upper electrode movement, and capacitive discharge technology to deliver precise, repeatable weld points with minimal deformation. Designed as a stationary unit where the workpiece moves, it is ideal for production lines requiring stable output and consistent weld quality.

Built for industrial environments, this spot welder handles low-carbon steel, stainless steel, coated steel, and non-ferrous metals including copper wire, sheet, and pipe. With a 50% duty cycle and fully water-cooled welding transformer, it supports continuous operation in demanding automotive, hardware, and household appliance manufacturing. The foot-switch control reduces operator fatigue while maintaining high production throughput.

Key Technical Advantages

High-Rigidity Frame for Consistent Weld Quality

The tree-style frame with multiple reinforcing ribs resists impact and minimizes deformation during welding, ensuring stable electrode alignment and accurate weld points even under continuous heavy-load operation. This translates to fewer defective welds and reduced rework costs.

Precision Linear Guide Electrode Movement

The upper electrode moves vertically on precision linear guides with high repeatability, delivering consistent weld positioning every cycle. This improves weld uniformity across production batches, lowering scrap rates and enhancing final product reliability.

Fast Capacitive Discharge for High Efficiency

Capacitive charge-discharge technology shortens welding time significantly, allowing faster cycle rates without compromising joint strength. Production output per shift increases, directly improving manufacturing profitability.

Adjustable Welding Pressure via Electrical Proportional Valve

An electrical proportional valve enables precise, real-time adjustment of welding pressure, accommodating different material thicknesses and joint configurations. Operators achieve optimal weld parameters faster, reducing setup time and material waste.

Integrated Safety and Fault Protection

Air pressure and water pressure switches with alarm functions prevent operation under insufficient cooling or air supply, protecting the equipment from damage. This reduces unplanned downtime and extends machine service life, lowering total ownership costs.

Energy-Saving Fully Water-Cooled Transformer

The main welding circuit uses a fully water-cooled resistance welding transformer and rectifier, providing strong output power while maintaining energy efficiency. Lower power consumption per weld reduces operational expenses, and the robust cooling design supports sustained high-duty-cycle production.

Applications

Industry	Typical Workpiece	Welding Mode
Automotive Manufacturing	Nuts, studs, brackets, sheet metal panels	Projection welding, spot welding
Electrical & Copper Wire Industry	Copper wire, copper lugs, busbars, cable joints	Spot welding, butt welding
Hardware & Fastener Production	Bolts, nuts, washers, rivets	Projection welding
Household Appliance Manufacturing	Sheet metal enclosures, brackets, heating elements	Spot welding, projection welding
General Fabrication	Low-carbon steel sheets, stainless steel parts, pipes	Spot welding

Working Principle

The machine operates by clamping the workpiece between two copper electrodes, where a high electrical current is passed through the contact point to generate localized resistance heating. The medium frequency inverter converts input power to a controlled DC welding current, enabling precise heat management and shorter weld times compared to conventional AC machines. The upper electrode descends via an auxiliary cylinder in linear guides, applying consistent pressure through an electrical proportional valve. The heated material fuses under pressure, forming a solid nugget. The secondary circuit uses a fully water-cooled transformer and rectifier to maintain high output and thermal stability. A foot switch triggers the cycle, allowing hands-free operation and rapid production cycling.

Technical Specifications

Parameter	Unit	DN(B)-100	DN(B)-160	DN(B)-200	DN(B)-250
Rated Power at 50%	KVA	40	63	80	100
Rated Primary Power	V	3φAC 380V	3φAC 380V	3φAC 380V	3φAC 380V
Max. Short Circuit Current	KA	30	35	45	45
Duty Cycle	%	50	50	50	50
Max. Force	N	6000	6000	10000	15000
Electrode Length	mm	450	450	450	500
Working Stroke	mm	80	80	80	80
Cooling Consumption	L/min	20	20	20	20
Max. Welding Capacity	mm	3.0+3.0	4.0+4.0	5.0+5.0	6.0+6.0
Weight	kg	500	—	—	—

After-Sales and Support

Warranty — 1-year warranty covering manufacturing defects and workmanship, ensuring peace of mind for your initial investment.
Field Installation and Commissioning — Experienced technician available for on-site setup, calibration, and operator training to maximize uptime from day one.
Free Spare Parts — Provision of essential spare parts with the machine to minimize downtime during routine maintenance.
After-Warranty Service — Remote video technical support and online assistance, plus access to genuine spare parts for long-term reliability.
Overseas Technical Team — Dedicated service teams in Southeast Asia and South America offer on-site maintenance; contact us to check availability in your country.

Frequently Asked Questions

What materials can this spot welding machine weld?

It is designed for low-carbon steel, stainless steel, coated steel, and non-ferrous metals including copper wire, sheet, and pipe. It also supports plate-to-plate welding, projection nuts, and bolt welding.

What is the maximum welding thickness for this machine?

The maximum welding capacity is 5.0+5.0 mm for the DN(B)-200 model. For lighter production needs, the DN(B)-100 handles 3.0+3.0 mm, and DN(B)-250 supports up to 6.0+6.0 mm, allowing flexibility across workpiece sizes.

What power supply is required for operation?

The machine operates on 3-phase AC 380V power input, with 220V available for certain configurations. Please confirm your local supply voltage when ordering to ensure correct setup.

Can the welding pressure be adjusted for different tasks?

Yes, an electrical proportional valve enables precise adjustment of welding pressure, accommodating various material types and thicknesses. This allows operators to optimize weld quality for each application.

What after-sales support and spare parts are available?

We offer 1-year warranty, field installation, commissioning, and training, plus video technical support and online assistance. Free essential spare parts are included, and our overseas teams in Southeast Asia and South America provide on-site service.

Request Your Welding Solution

Send us your workpiece drawings and production requirements. Our engineering team will evaluate your application, configure the optimal solution, and provide a detailed proposal with electrode design and automation integration options.

Send Drawing | Request Welding Test | Get Custom Solution