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Automation Systems · HK-6 Series

Automatic Welding Carriage with Oscillator

High-precision motorized track seam welding tractors engineered for MIG, TIG, and SAW processes on tanks, pipes, pressure vessels, and structural steel.

0–1200

Travel Speed (mm/min)

0–30

Oscillation Width (mm)

30–50%

Productivity Gain

ISO 9001

Quality Certified

Motorized Seam Welding Automation

HK-6 Series Automatic Welding Carriage with Linear Weaving Oscillator

The HK-6 Series (HK-6A & HK-6W) is a heavy-duty, self-propelled motorized welding tractor designed to eliminate human error and uneven bead width in long-seam welding applications. Operating along a high-retention magnetic flexible track, it delivers constant travel speed and programmable side-to-side torch oscillation.

Engineered for global EPC contractors and heavy metal fabricators, this track welder optimizes deposit rates, ensures complete sidewall fusion, and drastically reduces rework across storage tanks, process piping, ship blocks, and pressure vessel shells.

Motorized constant-speed track drive (0–1200 mm/min)
Adjustable linear weaving oscillator (0–30 mm amplitude)
Permanent magnetic flexible track for flat & curved surfaces
3-Axis mechanical torch slider for millimeter torch placement
Compatible with standard MIG, TIG, and Submerged Arc (SAW) sources
ISO 9001:2015 certified Indian manufacturing & global support

APS HK-6 Series Automatic Welding Carriage operating on magnetic track

30-50%Lower operational cycle time

Technical Parameters

HK-6 Series Model Comparison & Specifications

Select the ideal track carriage configuration for your shop floor or site requirements. All models feature heavy-duty aluminum die-cast housings, step-less speed control, and multi-process interface adapters.

★ Multiprocess SAW / MIG / TIG

HK-6W Tractor

Heavy-Duty Automated Seam Welder

Designed for heavy plate joints, storage tank fabrication, and submerged arc integration where wider oscillation amplitude and higher traction force are required.

Drive MechanismSelf-Propelled Motorized Track Drive
Travel Speed Range0 – 1200 mm/min (Stepless Variable)
Oscillation TypeLinear Weaving Oscillation
Oscillation Width0 – 30 mm (Adjustable)
Oscillation Speed0 – 50 cycles/min
Dwell Time ControlIndependent Left & Right Pause (0–5s)
Track SystemPermanent Magnetic Flexible / Rigid Track
Power InputAC 220V / 50–60 Hz (110V optional)
Carriage WeightApprox. 10.5 kg

★ High-Speed MIG / TIG

HK-6A Tractor

Compact Precision Welding Carriage

Engineered for high-repeatability seam welding on sheet metal assemblies, structural steel beams, pipe spools, and medium-wall tank fabrications.

Drive MechanismDirect-Drive Motorized Track Unit
Travel Speed Range0 – 1000 mm/min (Digital Readout)
Oscillation TypeLinear Precision Weaving
Oscillation Width0 – 25 mm (Stepless Adjustment)
Speed ControllerSolid-State Pulse-Width Modulation (PWM)
Torch Holder Adjustment3-Axis Slider Mechanism (XYZ)
Mounting SystemHigh-Grip Magnetic Track Blocks
Power SupplyAC 220V / 50–60 Hz
Carriage WeightApprox. 8.2 kg

Engineering Excellence

Key Advantages of Automated Track Welding Carriages

Invest in track-guided welding automation to solve skilled welder shortages, reduce consumable waste, and ensure strict NDT radiographic compliance.

Precision Weaving Control

Adjustable width, speed, and dwell times guarantee complete sidewall penetration while preventing undercut and cold lap defects on thick joint prep.

Constant Speed Regulation

Electronic closed-loop motor drive ensures smooth travel speed independent of load variance, torch angle, or thermal expansion along long seams.

Magnetic Flexible Track

Heavy-duty magnetic track sections adhere tightly to flat plates, curved tank shells, or pipe ODs down to 750 mm diameter without slipping.

Universal Torch Interface

Adjustable torch clamps accommodate standard air-cooled and water-cooled MIG torches, TIG torches with filler wire guides, or heavy SAW heads.

Performance Benchmark

Automatic Welding Carriage vs. Manual Welding

Compare key operational metrics to evaluate your return on investment when transitioning from manual hand welding to track-guided automation.

Higher rework rate due to stop-start defects

Operational Factor	Manual Hand Welding	APS Automated HK-6 Carriage
Bead Uniformity & Appearance	Varies with welder skill and fatigue level	100% consistent width, height, and cosmetic ripple
Deposition & Travel Speed	Limited by manual dexterity (150–350 mm/min)	Continuous high speed up to 1200 mm/min
Sidewall Penetration	Inconsistent weave leading to potential undercut	Controlled linear oscillation for optimum penetration
Welder Fatigue & Exposure	High physical strain, heat, and fume exposure	Operator monitors remotely; minimal physical strain
NDT / X-Ray Defect Rates	Extremely low defect rate across long continuous seams
Filler Wire & Shielding Gas Use	Higher consumption due to overwelding	Optimized consumption with zero material waste
Overall Productivity Gain	Baseline Standard Output	30% to 50% Higher Daily Linear Meter Output

Manufacturer Credentials

Why Overseas Procurement Teams Partner with APS

Direct Factory Procurement

We design, assemble, and load-test every HK-6 carriage at our ISO 9001:2015 certified plant in Gujarat, India — offering true OEM cost advantages.

Export-Grade Reliability

Built with heavy-duty cast aluminum bodies, protected circuit boards, and industrial magnetic bases for harsh outdoor site conditions.

Multi-Process Systems

Seamlessly pair your HK-6 carriage with APS MIG, TIG, or Submerged Arc inverter power sources for single-vendor warranty assurance.

Global Support & Spares

Fast dispatch of replacement gears, track blocks, control boards, and torch holders to maintain project schedules worldwide.

Industry Proven

Target Heavy Fabrication Applications

Field-tested across critical industrial projects worldwide.

Storage Tank Fabrication

Longitudinal and girth seam welding on large storage tanks, LPG vessels, and water treatment tanks.

Process Piping & Pipelines

Continuous seam welding on large-diameter carbon steel, stainless steel, and alloy pipe spools.

Shipbuilding & Marine Blocks

High-speed fillet and butt welds on hull plating, deck structures, and stiffener beams.

Structural Steelwork

Heavy H-beam, box girder, and bridge structural welding with deep penetration requirements.

Pressure Vessels & Boilers

Thick-section longitudinal shell joints conforming to ASME boiler and pressure vessel codes.

Wind Tower Manufacturing

Automated multi-pass seam welding on cylindrical wind turbine tower sections.

ISO 9001:2015 Quality

Manufactured under strict ISO quality control workflows, complete with pre-dispatch load testing and inspection reporting.

100% In-House Assembly

From mechanical drive gears to solid-state control circuits, every subsystem is assembled and inspected at our Valsad plant.

Global Packaging

Export-ready reinforced sea-worthy wooden cases ensure standard zero-damage delivery to international destinations.

Technical Support

Frequently Asked Questions

What is an Automatic Welding Carriage with Oscillator?

An Automatic Welding Carriage with Oscillator is a motorized, track-mounted welding automation machine designed to propel a MIG, TIG, or SAW torch along a linear magnetic track. Its integrated weaving oscillator moves the torch side-to-side, providing uniform bead formation, controlled penetration, and repeatable weld quality across long seams.

How does an automated track welding tractor increase productivity?

By eliminating manual torch manipulation and operator fatigue, an automated welding carriage maintains continuous travel speeds of up to 1200 mm/min. Fabricators typically achieve a 30% to 50% output boost while reducing weld defect rates and consumable waste.

Which welding processes can be integrated with the HK-6 Series?

The HK-6 Series carriage is universally compatible with Gas Metal Arc Welding (GMAW / MIG / MAG), Gas Tungsten Arc Welding (GTAW / TIG), and Submerged Arc Welding (SAW - HK-6W model). It integrates directly with standard CV/CC industrial welding power sources.

Can the magnetic flexible track operate on curved vessels and pipes?

Yes. The permanent magnetic flexible track features high retention force switchable magnetic bases that conform securely to both flat steel plates and curved cylindrical workpieces such as storage tanks, boilers, and large-diameter process piping.

What are the core technical differences between HK-6A and HK-6W models?

The HK-6A model is optimized for MIG and TIG seam welding applications requiring travel speeds up to 1000 mm/min and oscillation widths up to 25 mm. The HK-6W heavy-duty model supports SAW, MIG, and TIG processes, offering travel speeds up to 1200 mm/min and oscillation widths up to 30 mm for heavy plate sections.

Are international site input voltage configurations available?

Yes. APS supplies carriages equipped with internal power control units operating on standard AC 220V (50/60 Hz) input, with step-down transformer accessories available for 110V or alternative international site power environments.

What warranty and after-sales support does APS offer for export orders?

APS provides a 12-month standard manufacturer warranty, comprehensive spare parts kits, online technical support, video operation documentation, and factory testing certificates under ISO 9001:2015 quality standards.

Upgrade Your Seam Welding Efficiency Today

Contact our engineering specialists for detailed technical drawings, custom track configurations, and international freight estimates.

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