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Gantry Multi-Head Welder for Galvanized Door Panel Production Line

China Gantry Multi-Head Welder for Galvanized Door Panel Production Line

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Gantry Multi-Head Welder for Galvanized Door Panel Production Line

MOQ： 1 set
Price： $15,000-25,000 / set
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Supply Ability	2 sets per month
power (kw)	1000W
rated duty cycle	50%
After Warranty Service	Video technical support, Online support and Spare parts
Function	Automatic Welding
warranty	1 Year
Delivery Time	25-45 working days
rated capacity	40/63/80/100/125/160/200KVA
voltage	220V/380V
Payment Terms	L/C,D/A,D/P,T/T,Western Union
After-sales Service Provided	Free spare parts, Field installation, commissioning and training
Packaging Details	wooden box
Product Name	Gantry Multi-Head Welder for Galvanized Door Panel Production Line
MOQ	1 Set
Place of Origin	Sichuan, China
Brand Name	Xinwei
Certification	ISO, CE, RoHS

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Product Details
Company Details

Product Specification


Supply Ability	2 sets per month	power (kw)	1000W
rated duty cycle	50%	After Warranty Service	Video technical support, Online support and Spare parts
Function	Automatic Welding	warranty	1 Year
Delivery Time	25-45 working days	rated capacity	40/63/80/100/125/160/200KVA
voltage	220V/380V	Payment Terms	L/C,D/A,D/P,T/T,Western Union
After-sales Service Provided	Free spare parts, Field installation, commissioning and training	Packaging Details	wooden box
Product Name	Gantry Multi-Head Welder for Galvanized Door Panel Production Line	MOQ	1 Set
Place of Origin	Sichuan, China	Brand Name	Xinwei
Certification	ISO, CE, RoHS
High Light	2mm sheet metal welder ，2mm sheet metal welding machine ，automatic sheet metal welder

Gantry Multi-Head Welder for Galvanized Door Panel Production Line

Automated Multi-Point Resistance Welding System for Metal Door Manufacturing — Gantry Frame, Synchronous Multi-Head, Galvanized Steel Capable

Frame

Heavy Gantry

Welding

Multi-Head Sync

Material

Galvanized Steel

Max Capacity

6+6mm

The Problem This Machine Solves for Door Manufacturers

Door panel production involves welding multiple reinforcement ribs or edge profiles onto a large galvanized steel sheet. On a standard single-gun spot welder, the operator must manually position the panel, weld one point, reposition, weld the next, and repeat — dozens of times per door. Each manual reposition introduces weld spacing inconsistency. Each single-point cycle adds seconds that multiply into minutes per door. At hundreds of doors per day, this bottleneck defines the production line's ceiling.

This Xinwei gantry multi-head resistance welding system is purpose-built to break that bottleneck. The gantry frame spans the entire door panel. Multiple welding heads, positioned according to the door's reinforcement layout, press and weld simultaneously in one cycle. The operator loads the panel, starts the cycle, and removes the finished door. Every reinforcement point is welded with identical parameters and spacing. The result is consistent structural integrity from the first door of the shift to the last, at a throughput that single-gun welding cannot match.

Which Door Types This System Welds

Door Type	Material	Welding Requirement
Security Door	Galvanized steel sheet	Multi-point reinforcement welding
Fire Door	Steel plate	Strong internal structure welding
Metal Entrance Door	Galvanized panel	High-speed production welding
Industrial Door	Steel frame	Continuous multi-point welding

Customer Production Example

Product	Galvanized steel security door
Material	Galvanized sheet metal (0.8-2.0mm)
Welding Requirement	Multiple reinforcement rib points per door panel
Solution	Custom-configured gantry multi-head resistance welding system
Result	All reinforcement points welded in one cycle; consistent spacing; significantly higher throughput than single-gun welding; uniform electrode pressure minimises panel deformation

Three Core Engineering Advantages

1. Heavy-Duty Gantry Structure: Span the Entire Door Panel

The gantry frame provides a large working area with stable electrode movement across the full door panel surface. Unlike C-frame welders that limit workpiece access, the gantry architecture positions welding heads anywhere along the door length and width. This ensures consistent welding position and electrode alignment for every reinforcement point, regardless of door panel dimensions.

2. Multi-Head Synchronous Welding: All Points in One Cycle

Multiple independently controlled welding heads are positioned according to the door's reinforcement layout. In one press cycle, all heads engage simultaneously, completing every weld point on the panel at once. This eliminates per-point repositioning time and ensures uniform weld distribution. The electrode layout can be configured to match specific door designs — a critical capability given that door panel reinforcement patterns vary by model and manufacturer.

3. Optimised for Galvanized Steel: Controlled Heat, Minimal Coating Damage

Galvanized door panels present a specific welding challenge: the zinc coating must survive the welding process to maintain corrosion resistance. The multi-head synchronous approach distributes heat input evenly across the panel rather than concentrating it at sequential single points. Combined with adjustable electrode pressure and stable current control, this minimises zinc burn-off and reduces post-weld panel deformation — a key quality concern for door manufacturers whose finished products are visually inspected by end customers.

Welding Quality Verification

Every Xinwei gantry system undergoes pre-delivery testing with actual door panel samples. We verify:

Weld nugget consistency across all electrode positions on the panel
Panel flatness before and after welding to confirm minimal thermal deformation
Pull-out strength testing on welded reinforcement points
Galvanized coating integrity at and around weld zones

Customised Door Welding Solution

This is not a standard-configuration machine. Xinwei engineers work with your door panel design to configure:

Electrode Layout	Customised to your door panel reinforcement pattern
Welding Fixture	Tailored to your door panel dimensions
Door Size Adaptation	Gantry span configured to your largest door model
Production Line Integration	Compatible with upstream/downstream automation
Installation Support	On-site commissioning and operator training included

Technical Specifications

Parameter	Specification
Rated Capacity	40-200 KVA (model dependent)
Input Voltage	220V / 380V
Duty Cycle	50%
Max Welding Capacity	Up to 6+6mm
Frame Type	High-rigidity gantry structure
Welding Method	Multi-head synchronous projection welding
Electrode Configuration	Customisable layout per door design
Weight	1000 KG
Warranty	1 Year
Certifications	ISO, CE, RoHS

Frequently Asked Questions

Q: What types of doors can this machine weld?

A: It is designed for galvanized steel security doors, fire-rated doors, metal entrance doors, and industrial door panels requiring multi-point reinforcement welding.

Q: How many welding points can be completed at one time?

A: The number of simultaneous weld points depends on the configured welding head quantity, which is customised to your door panel reinforcement layout. All configured heads weld in one synchronised press cycle.

Q: Can the welding head layout be customised for different door models?

A: Yes. The electrode layout, fixture design, and gantry span are configured to your specific door panel dimensions and reinforcement pattern during the engineering phase.

Q: Will galvanized sheet deform or lose coating after welding?

A: The system controls deformation through three mechanisms: adjustable electrode pressure prevents over-compression, multi-point synchronous welding distributes heat evenly across the panel rather than concentrating it, and stable current control minimises zinc coating burn-off at the weld zone.

Q: Can this machine be integrated into an existing door production line?

A: Yes. The system supports upstream and downstream automation integration. Xinwei provides on-site commissioning and can coordinate with your line automation provider.

Send Your Door Panel Drawing — Get a Customised Welding Solution

Our engineers will design the electrode layout, configure the gantry span, and provide a production efficiency evaluation based on your door specifications. Includes free welding sample test with your door panel material.

info@xwweld.com | +86-13378111895

Company Details

Bronze Gleitlager

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from Quality China Factory

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Business Type:

Manufacturer 
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Year Established:

2003 
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Total Annual:

$35000000-$50000000
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Employee Number:

70~95 
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Ecer Certification：

Verified Supplier 

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