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LMH4000 Gantry-Type Automatic Submerged Arc Welding Machine for H-Beam Production
Arc Welding Machines

LMH4000 Gantry-Type Automatic Submerged Arc Weldi | RFQ Sourcing Details

Arc Welding Machines · Quote on request

This is a product procurement detail page: check specs, images, category context and related sourcing paths before sending an RFQ.

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Product specs

CategoryArc Welding Machines
Unitset
ModelLMH / LMH4000
StyleVertical
CoolingAir c ing
StructureDouble cantilever with two welding heads
Web height200–1,500 mm
Track width4,000 mm
CategoryArc Welding Machines
AvailabilityInquiry required
Source date2026-07-21

Buyer's Digest

Use this page as a product-first sourcing checkpoint before sending an RFQ. Category: Arc Welding Machines. Confirm application fit, capacity, materials, destination, lead time and compliance requirements before comparing suppliers.

Original product description

The LMH4000 is a gantry-type automatic submerged arc welding machine designed for H-beam production. Its double-cantilever structure carries two welding heads, while bilateral electrical drive moves the gantry along a 4,000 mm track width.

The machine is listed with automatic seam tracking by mechanical adjustment, electric lifting-column adjustment, and variable-frequency stepless speed regulation. Published workpiece ranges are 200–800 mm flange width, 6–40 mm flange thickness, 200–1,500 mm web height, and 6–32 mm web thickness.

The detailed specification lists a welding speed of 250–2,500 mm/min and a return speed of 3,000 mm/min. Another part of the supplied information states a 0.1–1.2 m/min welding-speed range, so the applicable production range should be confirmed for the offered configuration before purchase.

The listed welding package includes two ZD-1250 submerged arc welding machines, two arc-guide devices with welding guns, two flux sets, two suction nozzles, and two 5 m flux suction tubes.

The configuration also identifies two 1.1 kW geared travel motors, two 750 W geared welding motors, seven cable-moving sleds, one control box, and two 100 kg flux barrels. Listed input power is 380 V, three-phase, 50 Hz.

The machine is described as air cooled, vertically styled, electrically driven, and equipped with submerged-flux recovery. The stated overall machine size is 2,150 × 4,450 × 3,600 mm. Two 18,000 mm track lengths are specified as customer-provided, making track scope and site preparation important procurement points.

The supplied information also lists customization as available, standard packing, a 20-day delivery period, model LMH, and CE and ISO certificates.

Before ordering, the buyer should confirm the final welding-speed range, exact welder model because another listing mentions MZ 1000/1250, electrical compatibility at the installation site, track supply and installation responsibilities, included flux-recovery components, commissioning scope, and the documents supporting the listed certificates.

Warranty, shipping method, acceptance testing, spare parts, consumables, operator training, and service support are not defined in the supplied facts and should be agreed in the purchase specification.

LMH4000 | Applications and Buyer Notes

LMH4000 is organized as a sourcing-ready Arc Welding Machines reference. The page combines visible product or company data with structured procurement cues so buyers can compare application fit, specifications, quantity, quality requirements and lead-time ques

Applications

  • Initial shortlist building for related product or supplier options.
  • Specification and application fit review before bulk purchasing.
  • Category, keyword and detail-page comparison before sending an RFQ.

Key specifications

Category
Arc Welding MachinesBased on visible page data; confirm exact value in the RFQ.
Unit
setBased on visible page data; confirm exact value in the RFQ.
Model
LMH / LMH4000Based on visible page data; confirm exact value in the RFQ.
Style
VerticalBased on visible page data; confirm exact value in the RFQ.
Cooling
Air c ingBased on visible page data; confirm exact value in the RFQ.
Structure
Double cantilever with two welding headsBased on visible page data; confirm exact value in the RFQ.
Web height
200–1,500 mmBased on visible page data; confirm exact value in the RFQ.
Track width
4,000 mmBased on visible page data; confirm exact value in the RFQ.

Buyer tips

  • State quantity range and split-delivery needs before price comparison.
  • Add certification, material or inspection standards when they affect acceptance.
  • For time-sensitive projects, include target arrival date and destination.
  • For special applications, describe operating condition, installation environment and duty cycle.

FAQ

What should buyers confirm first?

Confirm application, specification, quantity, destination and lead-time requirements before comparing offers.

Can buyers inquire when specs are incomplete?

Yes. Add model, material, size, use case and inspection needs in the RFQ to make replies comparable.

How should this listing be evaluated?

Check title, category, specifications and related keywords against the actual sourcing requirement.

Source mix: ugc

Key specifications

CategoryArc Welding Machines
Unitset
ModelLMH / LMH4000
StyleVertical
CoolingAir c ing
StructureDouble cantilever with two welding heads
Web height200–1,500 mm
Track width4,000 mm
Flange width200–800 mm
Machine typeGantry-type automatic submerged-arc welder
Return speed3,000 mm/min
Track length18,000 mm × 2;listed as customer-provided
Seam trackingAutomatic tracking by mechanical adjustment
Speed controlVariable-frequency stepless regulation
Web thickness6–32 mm
Flange thickness6–40 mm
Intended processH-beam production welding
Detailed listed welding speed250–2,500 mm/min

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