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QTGW18-2.8 Automatic Gantry Submerged Arc Welding Machine for H-Beams
Arc Welding Machines

QTGW18-2.8 Automatic Gantry Submerged Arc Welding | 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
Gauge2,795 mm
ModelQTGW18-2.8
Rail length18 m, designed
Return speed4 m/min
Welding speed1,200-2,500 mm/min
Vertical stroke300 mm
CategoryArc Welding Machines
AvailabilityInquiry required
Source date2026-07-23

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 QTGW18-2.8 is a one-body, gate-style submerged arc welding machine for longitudinal seams on H-profile and related beam structures. Its double-torch arrangement is designed to weld two parallel seams in one pass.

The stated workpiece range includes conventional H-beams as well as irregular beams with section changes of up to 20 degrees. The machine uses PLC program-input technology and a profiling system for automatic seam tracking and adjustment.

Its controller can process two groups of data and coordinate both torches from seam starting points through end stops. A built-in self-examination function is described as displaying the location of a detected fault. Travel is The listed 18 m rail configuration provides a designed effective welding length of 15 m.

Supported workpiece dimensions include web plate widths from 200 to 600 mm, wing plate heights from 50 to 300 mm, and wing plate thicknesses from 14 to 25 mm. Left-right torch stroke is 700 mm and vertical stroke is 300 mm.

Listed welding speed is 1,200-2,500 mm/min, return speed is 4 m/min, and compatible welding-wire diameters are 2.5, 3, and 4 mm. The stated applications are flat-angle welding of carbon steel and low-alloy steel.

The machine is listed with water cooling, a 25 kg welding-wire capacity, and two 100 kg flux-reclaimer capacities. Standard electrical information is AC 380 V, 50 Hz;the broader listing also references 50/60 Hz, so the required site frequency should be confirmed before manufacture.

Procurement questions to confirm: Buyers should verify the final rail length, effective welding length, workpiece envelope, beam profile, plate thickness, welding process configuration, power supply, site frequency, and required duty cycle against their production drawings.

Also confirm which welding power sources, torches, controls, flux-recovery components, cables, installation materials, manuals, commissioning services, training, spare parts, and safety equipment are included.

Dimensions are described as configurable to the workpiece, so an approved layout and technical drawing should be obtained before production.

Confirm the final machine weight, cooling-water requirements, foundation and floor-loading needs, shipping configuration, installation responsibilities, acceptance-test procedure, and the exact scope of the stated one-year warranty.

QTGW18-2.8 | Applications and Buyer Notes

QTGW18-2.8 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 q

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.
Gauge
2,795 mmBased on visible page data; confirm exact value in the RFQ.
Model
QTGW18-2.8Based on visible page data; confirm exact value in the RFQ.
Rail length
18 m, designedBased on visible page data; confirm exact value in the RFQ.
Return speed
4 m/minBased on visible page data; confirm exact value in the RFQ.
Welding speed
1,200-2,500 mm/minBased on visible page data; confirm exact value in the RFQ.
Vertical stroke
300 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
Gauge2,795 mm
ModelQTGW18-2.8
Rail length18 m, designed
Return speed4 m/min
Welding speed1,200-2,500 mm/min
Vertical stroke300 mm
Web plate width200-600 mm
Welding processSubmerged arc welding
Left-right stroke700 mm
Wing plate height50-300 mm
Torch configurationDouble torch
Wing plate thickness14-25 mm
Machine configurationOne-body, gate-style gantry
Welding-wire capacity25 kg
Welding-wire diameter2.5, 3, or 4 mm
Effective welding width200-600 mm
Effective welding length15 m, designed

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