Resistance Aluminum Water Cooled Multi Point Spot Welder Semi Automatic for Fuel Tank

Name: Resistance Aluminum Water Cooled Multi Point Spot Welder Semi Automatic for Fuel Tank
Brand: Chengdu Xinwei Welding Technology Co., Ltd.
Price: 35.00 USD
Availability: InStock

Quality Resistance Aluminum Water Cooled Multi Point Spot Welder Semi Automatic for Fuel Tank factory

Basic Properties

Place of Origin:Sichuan, China

Brand Name:Xinwei

Certification:CE, RoHS, ISO

Trading Properties

Minimum Order Quantity:1

Price:$35,000-36,000

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

Power (kw):	500 W	Primary Voltage:	220 V, 380 V, 440 V
Rated Capacity:	40w-200w	Phase:	Single Phase
Condition:	New	Dimensions:	200010002400mm
Rated Duty Cycle:	50%	Usage:	Fuel Tank Welding Machine
Warranty:	12 Months	Weight (kg):	600
Type:	Projection Welder, Pneumatic Spot Weld	Product Name:	Resistance Aluminum Water Cooled Multi Point Spot Welder Semi Automatic For Fuel Tank
Application:	Fuel Tank Welding Machine	Function:	Multi Point Spot Welding Machine
Welding Material:	Alloy Metal Aluminum Stainless Steel	Keyword:	Standing Spot Welding Machine
Feature:	Aluminum Fuel Tank Welding Machine	After Warranty Service:	Video Technical Support, Online Support And Spare Parts
After-sales Service Provided:	Free Spare Parts, Field Installation, Commissioning And Training	Rated Capacity:	40 KVA To 200 KVA
Power:	220V / 380V / 440V, Single Phase, 500W	Duty Cycle:	50%
Weight:	600 Kg	Dimensions:	200010002400 Mm
Highlight	aluminum water-cooled spot welder , industrial resistance projection welder , semi automatic fuel tank welder

Product Description

Resistance Aluminum Water Cooled Multi Point Spot Welder Semi Automatic for Fuel Tank

Video Demonstration

Product Overview

This semi-automatic resistance spot and projection welder is engineered for high-volume fuel tank production, delivering 7 simultaneous weld points in a single press cycle through a rigid annular electrode assembly. The machine integrates a low-impedance secondary circuit with generous transformer margins to minimize energy loss, while an internal forced water-cooling channel continuously removes heat from the electrode roots and contact surfaces to prevent annealing and surface oxidation.

Built on a high-stiffness frame that resists deformation under repeated synchronous pressurization, the equipment maintains long-term electrode alignment accuracy for consistent joint quality. Industrial-grade pneumatic components and multi-level electronic protections—covering overcurrent, overvoltage, and overheating—ensure dependable operation in continuous production environments, making it a practical choice for manufacturers of traditional and new-energy fuel tanks.

Key Technical Advantages

Integrated Multi-Point Electrode Design

The upper and lower annular electrodes each feature 7 fixed protrusions formed as a single-piece structure, eliminating the risk of loose or displaced electrode tips after wear. This design delivers 7 welds simultaneously with high structural rigidity and extended service life.

Low-Loss Power Delivery

A generously sized welding transformer with a soft copper strip secondary connection provides a low-impedance path to the electrode coils, reducing heat generation and electrical waste. This translates into lower operating costs and stable weld energy over long shifts.

Full-Ring Forced Water Cooling

Cooling channels run through the entire annular electrode ring, covering the weld point roots and contact surfaces. Continuous water flow removes accumulated heat, preventing electrode softening, oxidation, and material adhesion, which supports consistent weld quality.

Rigid Frame with High Stability

The machine body uses a high-rigidity structural design that withstands the large reaction forces generated during synchronous pressurization. Long-term use without frame deformation preserves the alignment accuracy of the upper and lower electrodes.

Comprehensive Electronic Protection

The controller includes overcurrent, overvoltage, and overheating protection functions that automatically cut off output under abnormal conditions, safeguarding the transformer and power devices. Durable pneumatic components further enhance long-term reliability.

Quick-Change Electrode System

The annular electrode assembly is designed for rapid overall replacement, allowing operators to switch between different fuel tank specifications with minimal downtime and maintain high production throughput.

Applications

Industry	Typical Workpiece	Welding Mode
Fuel Tank Manufacturing	Fuel tank shell with metal ring	Projection welding (7 points per cycle)
Automotive Components	Filling ports and mounting brackets	Multi-point spot welding
Alloy Metal Fabrication	Aluminum and stainless steel sheets	Resistance spot welding
New Energy Equipment	Battery housing and sealing rings	Annular projection welding

Working Principle

The operator places the fuel tank shell on the lower electrode platform and positions the metal ring against the upper annular electrode. Upon activation, the upper and lower ring electrodes press synchronously, applying force across all 7 fixed convex points at once. A high-current, low-voltage pulse passes through the workpieces at each contact point, generating resistive heat that fuses the metal ring to the tank shell. The internal water-cooling circuit simultaneously extracts heat from the electrode roots, while the controller manages weld current and timing to produce consistent, sealed joints suitable for subsequent assembly.

Technical Specifications

Parameter	Unit	DN-40	DN-63	D(T)N-80	D(T)N-100	D(T)N-125	D(T)N-160	D(T)N-200
Rated power at 50%	KVA	40	63	80	100	125	160	200
Rated primary voltage	V	380	380	380	380	380	380	380
Secondary voltage	V	5.2	6.7	7.9	8.3	8.6	9.1	10.6
Rated frequency	HZ	50/60	50/60	50/60	50/60	50/60	50/60	50/60
Max. short circuit current	KA	14	15	16	18	20	28	34
Max. weld power	KVA	62	86	170	280	300	330	410
Throat	MM	400	400	400	450	450	450	450
Max. force at electrodes	N	6000	6000	10000	10000	10000	12000	12000
Working stroke	MM	20	20	30	40	40	50	50
Cooling water consumption 2.5bar	L/min	6	6	8	8	8	10	10
Electrodes tip	MM	Φ13*45	Φ13*45	Φ16*45	Φ16*45	Φ16*45	Φ20*45	Φ20*45
Arms	MM	Φ50*150	Φ50*150	Φ80*220	Φ80*220	Φ80*220	Φ80*220	Φ80*220
Projection clamping plate	MM	125*125	125*125	200*200	200*200	200*200	200*200	200*200
Max. welding capacity A3 steel	MM	2.5+2.5	3+3	4+4	4.5+4.5	5+5	5+5	6+6

After-Sales and Support

Warranty — 12-month coverage on core components (excluding consumable parts)
Technical Support — Online video guidance, troubleshooting, and Q&A from our engineering team
Spare Parts & Response — Rapid supply of genuine spare parts with on-site assistance available when required
Usage Guide — Complete training videos, operation manuals, and instruction documents included
Installation & Training — Field installation, commissioning, and operator training provided upon request

Frequently Asked Questions

What materials can this welder handle?

The machine is suitable for welding alloy metals, aluminum, and stainless steel, making it versatile for fuel tank shells and metal ring assemblies.

How many weld points can be completed in one cycle?

The annular electrode assembly contains 7 fixed protrusions on each ring, allowing 7 weld points to be formed simultaneously in a single press cycle.

What cooling requirements does the equipment have?

Forced water cooling is integrated through the entire electrode ring. The recommended water consumption ranges from 6 to 10 L/min at 2.5 bar, depending on the model selected.

Can the electrode assembly be customized for different tank sizes?

Yes, the annular electrode is designed for quick-change replacement. Our factory can customize electrode configurations to match different fuel tank specifications and production requirements.

What after-sales support is provided?

We offer a 12-month warranty on core components, online video technical support, spare parts supply, and field installation with training. Our overseas technical teams are available in select regions.

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