Multi Head Projection Spot Welder 8 Welds per Clamp for Galvanized Steel

Name: Multi Head Projection Spot Welder 8 Welds per Clamp for Galvanized Steel
Brand: Chengdu Xinwei Welding Technology Co., Ltd.
Price: 5.00 USD
Availability: InStock

Quality Multi Head Projection Spot Welder 8 Welds per Clamp for Galvanized Steel factory

Basic Properties

Place of Origin:Sichuan, China

Brand Name:XinWei

Certification:ISO,CE

Trading Properties

Minimum Order Quantity:1 set

Price:$4,500-6,000 / 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:	Multi Head Projection Spot Welder 8 Welds Per Clamp For Galvanized Steel	Max Welding Thickness:	6+6mm (A3 Steel)
Rated Capacity:	40-200 KVA	Power Supply:	380V Three-Phase, 50/60Hz
Duty Cycle:	50%	Condition:	New
Dimensions:	120cm×90cm×200cm (47.24in×35.43in×78.74in)	Usage:	Welding Sheet Metal (galvanized Steel, A3 Steel)
Warranty:	1 Year (core Components)
Highlight	resistance stationary spot welder , ac spot resistance welder , ac stationary spot welder

Product Description

Multi-Station Projection Spot Welder 8 Welds per Clamp for Galvanized Steel

Video Demonstration

Multi Head Projection Spot Welder 8 Welds per Clamp for Galvanized Steel

Product Overview

Boost your sheet metal fabrication throughput with our Multi-Station Projection Spot Welder, engineered to deliver 8 completed projection welds in a single clamping motion. This machine is purpose-built for galvanized steel parts requiring repeatable, high-strength joints across automotive, appliance, and enclosure manufacturing lines. With independent pressure and current regulation per weld head, you gain precise control over each weld point without slowing down your cycle time.

As a manufacturer with a 20,000 m² facility and an in-house R&D team of over 20 engineers, we focus on building production-oriented welding equipment that minimizes operator intervention and maximizes consistency. Every unit is backed by overseas technical service teams in Southeast Asia and South America, ensuring on-site installation support and rapid response when you need it most.

Key Technical Advantages

8 Welds per Single Clamp Cycle

Four welding heads, each completing 4 projection welds, deliver a total of 8 weld points per clamp. The automatic sequential firing—left to right—eliminates manual repositioning, reducing operator fatigue and boosting output per shift.

Independent Control per Weld Head

Welding pressure and current are independently adjustable for every head, allowing you to fine-tune each weld zone according to material thickness and coating conditions. Stroke adjustment minimizes idle travel, cutting cycle time and preventing interference between workpiece features.

Rigid Frame for Consistent Weld Quality

The frame is shock-resistant, seismic-resistant, and internally reinforced with multiple ribs to minimize deformation during welding. This structural rigidity ensures stable electrode alignment weld after weld, while protecting the operator during prolonged production runs.

Gas-Liquid Cylinder with Fast Response

The upper electrode uses a gas-liquid pressure cylinder combined with an aluminum alloy barrel and low-damping seal ring. A pilot large-flow solenoid valve delivers extremely fast tapping speed and precise pressure follow-up, improving weld consistency on coated steel.

Separate Welding and Workpiece Stroke

The upper electrode moves horizontally with independent welding stroke and workpiece operation stroke, while the lower electrode remains fixed. This simplifies operation, reduces pressure impact on parts, and lowers noise during the descent and ascent phases.

Applications

Industry	Typical Workpiece	Welding Mode
Automotive Parts	Bracket assemblies, mounting plates	Multi-point projection welding
Home Appliances	Washer drums, oven panels	8 welds per clamp sequence
Sheet Metal Fabrication	Galvanized steel enclosures, frames	Simultaneous multi-head welding
Electrical Cabinets	Mounting rails, hinge reinforcements	Sequential automatic firing
Furniture Manufacturing	Metal shelving, support brackets	Projection spot welding

Working Principle

When the operator presses the start button, the welding controller automatically fires each head in sequence from left to right—no manual intervention required until all weld points are complete. Each head performs projection welding of 4 points, achieving 8 protrusions in one clamping process. Since every head has independent pressure and current adjustment, and the auxiliary cylinder position is tuned via the adjusting nut, you can reduce idle stroke and prevent interference between the workpiece and the electrodes for each unique part geometry.

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 power	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 (2.5 bar)	L/min	6	6	8	8	8	10	10
Electrode 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

Field Installation & Commissioning — Our technicians provide on-site installation, commissioning, and operator training to get your line running quickly and safely.
Free Spare Parts — Essential consumables and wear parts are included with the machine to support your initial production period without extra cost.
Machinery Test Report — Each unit is shipped with a full test report verifying electrical, pneumatic, and weld quality parameters before delivery.
1-Year Warranty — Core components are covered for 12 months, giving you peace of mind on your investment.
Overseas Technical Teams — Dedicated service teams in Southeast Asia and South America provide on-site maintenance and rapid remote support; contact us to check availability in your country.

Frequently Asked Questions

How do I set up the welding sequence for different part geometries?

The welding controller automatically fires each head from left to right once the start button is pressed. Each head's auxiliary position is adjusted using the adjusting nut on the auxiliary cylinder, and the stroke is set to minimize idle travel. This lets you adapt the sequence to different part shapes without additional programming.

Can this machine weld galvanized steel without damaging the coating?

Yes. The independent pressure and current regulation per head, combined with the fast-response gas-liquid cylinder, helps control heat input precisely. We recommend running a sample test with your specific material and coating thickness; our engineers can help you determine optimal parameters before full production.

What is the maximum combined welding thickness?

For A3 steel, the capacity ranges from 2.5+2.5 mm on the DN-40 model up to 6+6 mm on the DN-200 model. For galvanized steel, the actual range depends on coating weight and part rigidity; share your drawing and we will confirm suitability.

How long is the warranty and what does it cover?

The machine comes with a 1-year warranty covering core components. Free spare parts are provided as part of the package, and our overseas technical teams in Southeast Asia and South America are available for on-site installation, maintenance, and training.

What utilities are required to operate this machine?

The machine requires a 380V three-phase power supply (50/60 Hz), filtered compressed air, and cooling water at 2.5 bar. The integrated air storage tank helps stabilize welding pressure, while the cooling water system keeps temperature consistent during continuous operation.

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