HOGI seam welder
HOGI Automatic Longitudinal seam welder Optional Laser Tig Mig MAG SAW
HOGI The Latest Technology Automatic Laser Longitudinal Seam Pipe/Cylinder Welding Machine is a specialized piece of equipment designed for high-precision, automated laser welding of longitudinal straight seams on metal sheet coils after they have been rolled into cylinders.
This equipment is widely used in the assembly-line production of cylindrical workpieces such as HVAC ducts, pressure vessel liners, metal piping, motor housings, and new energy battery casings.
I. Structural Composition and Core Operating Principles
The equipment typically follows the operational sequence of “workpiece positioning – Auto pneumatic clamping – mandrel pad protection – linear movement of the laser head”
HOGI Stainless steel TIG MIG Laser straight seam welding machine Linear TIG seam welding machine for tanks/pipes ducts
HOGI Main Applications and Technical Features of the Equipment
* Applicable Materials: Thin-gauge and medium-to-thick-gauge formed parts made of stainless steel, carbon steel, titanium alloys, aluminum alloys, and other materials.
* Applicable Workpieces: Pipes, ducts, storage tanks, pressure vessels, water tanks, cylinders, and box-type components.
* Core Process Advantages:
* Single-sided welding with double-sided forming: Combined with gas shielding on the reverse side and copper backing plates (typically equipped with a water-cooling system), the weld bead is flat and smooth, eliminating the need for subsequent grinding.
* Automatic clamping mechanism: Ensures uniform clamping along the entire length of the workpiece, effectively reducing thermal distortion during welding.
* High-precision travel and arc length control: A servo motor drives the welding torch at a constant speed; the system can be equipped with AVC (Automatic Arc Length Control) and a weld tracking system to ensure welding stability.
Main Machine Gallery
Details Gallery
HOGI Automatic Longitudinal Seam Welding Machine
Designed for welding the longitudinal seams of rolled steel cylinders; features a servo-driven welding torch and a workpiece clamping system to execute the seam weld.
• Suitable Workpieces: Stainless steel and carbon steel tanks, sealed containers, air duct cylinders, pressure vessel shell sections.
• Welding Processes: TIG (Argon Arc), MIG/MAG (Gas Shielded), and Laser welding; supports both autogenous and filler-wire welding.
• Core Components: Pneumatic clamping mechanism, water-cooled backing bar, servo travel system, PLC touchscreen, seam tracking, oscillator, automatic wire feeder.
• Advantages: Smooth weld bead formation, minimal deformation, high consistency; replaces manual longitudinal welding; capable of welding thin to medium-thick plates.
HOGI Automatic Circumferential Seam Welding Machine
Designed for welding circumferential seams where cylinder bodies meet end caps, shell sections join together, or flanges attach to pipes; the workpiece rotates while the welding torch remains stationary to complete a 360° circumferential weld.
• Suitable Applications: Tank end-cap circumferential seams, piping, pressure vessels, water heater inner tanks, various cylindrical components.
• Structural Configuration: Chuck-style positioner or turning roll stand (turning rolls used for large-diameter tanks).
• Core Components: High-precision rotation mechanism, positioner/turning roll stand, Arc Voltage Control (AVC), welding oscillator (OSC), PLC touch control system, wireless remote control, multi-layer/multi-pass welding program storage.
• Advantages: High rotational concentricity, continuous circumferential weld without interruptions; stores multiple welding programs; operable by general (non-specialized) workers.
HOGI Integrated Longitudinal & Circumferential Welding Machine (2-in-1)
A single machine capable of performing both longitudinal seam welding (for cylinder bodies) and circumferential seam welding (for end caps) simply by switching tooling; ideal for small-to-medium tank manufacturing plants, saving on equipment procurement costs and workshop floor space.
Typical Application Industries
Pressure vessels, HVAC tanks, stainless steel storage tanks, water treatment tanks, construction machinery cylindrical parts, solar water heater inner tanks, drum manufacturing industry. Key Configuration Checklist (Essential for sales staff when assisting customers with model selection)
1. Maximum welding length (longitudinal seam)
2. Workpiece diameter range (min.–max.)
3. Plate thickness range (carbon steel/stainless steel)
4. Welding power source: TIG / MIG power rating
5. Requirements for seam tracking, torch oscillation, and water-cooled backing
6. Maximum workpiece weight (determines load capacity for positioner/turning rolls)
7. Voltage: 380V 50Hz (460V 60Hz for the US market; adapted to local voltage for Russia/Europe)
8. CE certification; complete set of English manuals, electrical schematics, and FAT (Factory Acceptance Test) report
Case Studies
Customer Testimonials
“Switching to HOGI’s longitudinal seam welder cut our cylinder rework almost to zero. The copper platen keeps the weld pool controlled, and the finish is consistent from the first piece to the last.” — Production Supervisor, Pressure Vessel Manufacturer
“We weld everything from thin galvanized duct to thicker carbon steel tanks on the same machine. The pneumatic torch adjustment makes changeover between jobs fast.” — Workshop Owner, Duct Fabrication
“Being able to store hundreds of welding programs means our operators don’t have to reprogram the machine every time we change tank diameter. It’s saved us real setup time.” — Plant Manager, Gas Tank Production
Frequently Asked Questions
What material thickness range can this machine weld?
Which welding sources are compatible?
How is welding position and torch travel controlled?
Can the machine run continuous or segmented welds?
How many welding programs can be stored?
What is the repeat positioning accuracy?
Why Choose HOGI for Longitudinal Seam Welding
HOGI Manufacturer specializes in customized automatic rolling equipment, intelligent welding equipment, and tailored processing production lines for the industrial fan, HVAC, and pipeline industries. Our product range spans angle steel flange automatic welders, CNC 4-roll rounding machines, longitudinal seam welders, automatic flanging machines, and complete rolling-to-welding production lines.
Every longitudinal seam welding machine is built around a rigid one-piece spindle assembly and PLC-controlled motion system, with Schneider relays and contactors for reliable low-voltage components. Our engineering team configures each machine’s welding source — TIG, MAG, or laser — to match the customer’s material and production requirements before shipment.
From stainless steel chimneys to galvanized ductwork and carbon steel gas tanks, HOGI’s longitudinal seam welding platform is built to deliver deformation-free, repeatable welds across a wide range of cylindrical and flat-panel fabrication needs.
Technical Support & Services
On-Site Installation
Professional installation and commissioning of your longitudinal seam welding machine, including welding source setup and torch calibration.
Operator Training
Training on torch positioning, program storage, and pneumatic control systems to get your team running production quickly.
Remote Support
Remote technical assistance for troubleshooting, program setup, and welding parameter optimization.
Spare Parts Supply
Genuine HOGI spare parts including torch components, copper platens, linear guides, and control modules.
Warranty Service
Standard warranty covering mechanical and electrical components, with specific support for TIG / MAG / laser source service needs.
Request a Quote
I. HOGI Automatic Longitudinal Seam Welding Machine
Automatic Longitudinal Seam Welding Machine
No. | Item | Specification
1 | Max. Welding Length | 1000mm (Customizable: 1500mm/2000mm/2500mm)
2 | Applicable Cylinder Diameter | Φ80mm–Φ2000mm (Customizable)
3 | Applicable Plate Thickness | 0.8mm–6.0mm (Stainless steel, carbon steel)
4 | Clamping Method | Fully automatic pneumatic clamping
5 | Welding Backing | Water-cooled pure copper backing; backside forming protection
6 | Travel Driving System | Servo motor precision drive
7 | Travel Speed | 0.2–6m/min (Steplessly adjustable)
8 | Welding Process | TIG (Argon arc welding) / MIG/MAG (Gas-shielded welding) / Laser welding
9 | Control System | PLC (Programmable Logic Controller) + Touch screen
10 | Standard Configuration | Pneumatic clamping mechanism, servo travel mechanism, water-cooled backing, automatic wire feeding system
11 | Optional Configuration | Welding oscillator, seam tracking system, backside shielding gas device
12 | Power Supply | 380V/50Hz (Customizable to 460V/60Hz for export)
13 | Machine Weight | Approx. 1800kg
II. HOGI Automatic Circumferential Seam Welding Machine (Positioner Type – Small/Medium Cylinders)
Automatic Circumferential Girth Welding Machine (Positioner Type)
No. | Item | Specification
1 | Max. Load Capacity | 500kg (Optional: 200kg/1000kg)
2 | Workpiece Diameter | Φ50mm–Φ1200mm
3 | Max. Workpiece Length | 1500mm
4 | Applicable Thickness | 1.0mm–8.0mm 5 Rotation Drive: Servo-driven for precision rotation and stable, constant speed
6 Rotation Speed: 0.1–2 r/min (steplessly adjustable)
7 Clamping Structure: 3-jaw self-centering chuck
8 Torch Adjustment Structure: Precision cross-slide unit
9 Control System: PLC with touch screen; storage for multiple welding programs
10 Standard Configuration: Positioner main unit, cross-slide unit, electrical control system, speed control system
11 Optional Configuration: AVC (Arc Voltage Control), welding oscillator, wireless remote control
12 Power Supply: 380V/50Hz (export voltage customizable)
13 Machine Weight: Approx. 1400 kg
III. HOGI Automatic Circumferential Welding Machine (Roller Bed Type – Large Tanks/Pressure Vessels)
Automatic Circumferential Welding Machine (Roller Bed Type)
No. Item | Standard Specification
1 Load Capacity: 5T (3T/10T/20T options available)
2 Applicable Diameter: Φ300mm–Φ3500mm
3 Max Cylinder Length: 6000mm
4 Applicable Thickness: 2.0mm–20.0mm
5 Roller Material: High-strength, wear-resistant polyurethane rollers
6 Speed Control: Stepless variable frequency speed control
7 Rotation Speed: 0.05–1.5 r/min
8 Operating System: Cross-slide welding torch manipulator
9 Control System: Intelligent PLC control system
10 Standard Configuration: Drive roller bed, idler roller bed, electrical speed control system
11 Optional Configuration: Anti-drift device, AVC (Arc Voltage Control), welding oscillation system
12 Power Supply: 380V/50Hz (export voltage customizable)
13 Machine Weight: Approx. 3,200 kg
IV. General Technical Specifications
1. Machine specifications support non-standard customization; equipment can be tailored to specific customer requirements regarding workpiece dimensions, thickness, and processing needs.
2. The main unit does not include the welding power source (TIG and gas-shielded welding machines must be selected and purchased separately).
3. For export equipment, the following are available: CE certification, EAC documentation, an English-language operation manual, electrical schematics, and the factory FAT (Factory Acceptance Test) report.
4. The equipment is suitable for welding common metal tanks made of carbon steel, stainless steel, alloy steel, etc., and is widely used in the production of HVAC ducts, pressure vessels, water treatment storage tanks, and industrial cylindrical components.
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HOGI Longitudinal Seam Welding Machine in Action
Live Demonstration Highlights
Watch the HOGI horizontal lifting straight‑seam longitudinal welding machine in operation. This video demonstrates automatic butt welding of cylinders, flat plates and one‑end‑open square boxes with wall thickness from 0.6 mm to 4 mm, using TIG/optional MAG or laser sources and pneumatic assist for fast, repeatable seams.
- Multi‑Source Welding: See the system working with TIG welding (standard Panasonic YC‑400TX) and options for MAG or laser heads, suitable for carbon steel, galvanized sheet and stainless steel.
- Pneumatic Assist & Fast Setup: The video shows pneumatic lifting of the welding gun and inverted head, combined with electric truss lift and fine adjustment, reducing manual handling and setup time for different diameters.
- Stable Torch Travel: Watch the torch moving along the longitudinal seam guided by TBI linear guides and ball screws, with single‑axis PLC control storing multiple programs for repeatable weld parameters.
- Versatile Applications: The demonstration includes air/gas tanks, stainless chimneys, HVAC ducts and fan components, highlighting clean seams, minimal deformation and consistent weld appearance.
Optimized for Cylindrical and Box‑Shaped Fabrication
As shown in the video, this longitudinal seam welding machine is designed for cylindrical and box‑shaped parts in HVAC, industrial fan, environmental protection and pipeline industries. The electric height adjustment and pneumatic torch control reduce operator effort and setup time, while programmable storage enables quick switching between different diameters and lengths. This makes the system especially suitable for manufacturers handling a wide mix of part sizes and order volumes, helping you achieve stable seam quality and shorter delivery cycles without complex programming.