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Gantry Multi-Head Welder for Galvanized Door Panel Production Line

Gantry Multi-Head Welder for Galvanized Door Panel Production Line

Gantry Multi-Head Welder for Galvanized Door Panel Production Line
Gantry Multi-Head Welder for Galvanized Door Panel Production Line
Categories Sheet Metal Welding Machine
Place of Origin: Sichuan, China
Price: $15,000-25,000 / set
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
MOQ: 1 set
warranty: 1 Year
Delivery Time: 25-45 working days
rated capacity: 40/63/80/100/125/160/200KVA
voltage: 220V/380V
Brand Name: Xinwei
Certification: ISO, CE, RoHS
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
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Company Info.
Chengdu Xinwei Welding Technology Co., Ltd.
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Gantry Multi-Head Welder for Galvanized Door Panel Production Line

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 TypeMaterialWelding Requirement
Security DoorGalvanized steel sheetMulti-point reinforcement welding
Fire DoorSteel plateStrong internal structure welding
Metal Entrance DoorGalvanized panelHigh-speed production welding
Industrial DoorSteel frameContinuous multi-point welding

Customer Production Example

ProductGalvanized steel security door
MaterialGalvanized sheet metal (0.8-2.0mm)
Welding RequirementMultiple reinforcement rib points per door panel
SolutionCustom-configured gantry multi-head resistance welding system
ResultAll 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 LayoutCustomised to your door panel reinforcement pattern
Welding FixtureTailored to your door panel dimensions
Door Size AdaptationGantry span configured to your largest door model
Production Line IntegrationCompatible with upstream/downstream automation
Installation SupportOn-site commissioning and operator training included

Technical Specifications

ParameterSpecification
Rated Capacity40-200 KVA (model dependent)
Input Voltage220V / 380V
Duty Cycle50%
Max Welding CapacityUp to 6+6mm
Frame TypeHigh-rigidity gantry structure
Welding MethodMulti-head synchronous projection welding
Electrode ConfigurationCustomisable layout per door design
Weight1000 KG
Warranty1 Year
CertificationsISO, 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
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Product Tags:

2mm sheet metal welder

  

2mm sheet metal welding machine

  

automatic sheet metal welder

  
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Gantry Multi-Head Welder for Galvanized Door Panel Production Line

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