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HM2500/14000 14m CNC Automatic Light Pole Seam Closing Welding Machine Max 2500mm Diameter

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HM2500/14000 14m CNC Automatic Light Pole Seam Closing Welding Machine Max 2500mm Diameter
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Features
Specifications
Machine Application: Large Diameter Power & 5G Pole Longitudinal Seam Production
Processing Capacity: Super Large Pole Diameter 400–2500mm Range Coverage
Welding Length Spec: Ultra Long 14m Full Pole One-time Forming Welding
Plate Welding Range: Heavy Duty 5–20mm Thick Carbon Steel Plate Welding
Welding System Type: Dual Power DC+AC Three Wire Submerged Arc Welding System
Mechanical Feature: 2200mm Upgraded Hydraulic Pressing Stroke For Big Poles
Driving Method: Full Servo Synchronous Walking & Seam Tracking System
Compatible Workpiece: Tapered, Polygonal And Equal-diameter Steel Pole Types
Color: Customizable
Basic Infomation
Place of Origin: WUXI, CHINA
Brand Name: CMC
Model Number: HM2500
Payment & Shipping Terms
Delivery Time: 90days
Payment Terms: T/T,L/C
Supply Ability: According to requirements
Product Description
HM2500/14000 14m CNC Automatic Light Pole Seam Closing Welding Machine Max 2500mm Diameter
Product Overview

HM2500/14000 heavy-duty CNC pole shut welding machine is specially optimized for large-caliber thick-walled tapered steel poles. It realizes fully automatic longitudinal seam closing and submerged arc welding for 14m ultra-long light poles and communication poles.

This equipment supports 1-piece, 2-piece and 3-piece assembled pole structures, covering round tapered poles, octagonal poles and multi-sided polygonal poles. Adopting fixed gantry welding system plus servo synchronous moving V-shaped trolley, the machine completes hydraulic seam closing and continuous welding synchronously with high stability.

For double-seam poles, the system supports automatic lifting and pole rotation, realizing secondary seam welding without manual repositioning. It greatly improves continuous production efficiency for large-diameter pole manufacturing plants.

Technical Note: The hydraulic closing system provides enough clamping force for 25mm thick steel plates. For workpieces within 20~25mm thickness requiring high welding penetration, a secondary submerged arc cover welding is recommended to ensure full and smooth weld metal filling.
Equipment Specifications
Item Details
Equipment Type Full Automatic CNC Pole Longitudinal Seam Shut Welding Machine
Model HM2500/14000
Suitable Workpiece Large diameter power pole, 5G communication pole, high mast light pole, polygonal & conical tapered pole
Welding Process Dual-power double arc three-wire submerged arc welding (DC+AC composite welding)
Max Welding Length 14000mm full head-to-tail welding
Optional Functions Remote online diagnosis, industrial air-conditioned electric cabinet, complete spare parts set
Complete Technical Parameters
No. Parameter Item Technical Data
1 Applicable Pole Diameter Range 400mm ~ 2500mm (large diameter exclusive)
2 Max Effective Welding Length 14000mm
3 Applicable Plate Thickness & Material 5~20mm (max clamping capacity 25mm); Q235, Q355, Gr65 carbon steel
4 Clamping Roller Group 3 sets synchronous hydraulic pressing rollers
5 Hydraulic Pump Power 2.2KW+2.2KW+3KW
6 V-Trolley Servo Motor Power 7KW infinitely variable speed control
7 Vertical Pressing Stroke 2200mm (enhanced large-stroke design for big poles)
8 Working Ground Height 800mm
9 Welding Power System DC 250~1250A + AC 250~1250A dual-power three-wire submerged arc welding
10 Welding Wire Specification Single wire Φ4.0mm / Twin wire 2*Φ1.6mm
11 Welding Speed Range 0.3~1.5m/min stepless adjustable
12 Welding Direction Automatic welding from large end to small end of tapered pole
13 Welding Effect Standard Single-side welding double-side forming, stable penetration
14 Total Machine Weight 25 Ton
15 Overall Dimension 31000 * 7000 * 6500 mm
Machine Configuration Composition

The full set of large-diameter pole welding equipment consists of standardized heavy-duty modules, ensuring stability for long-term heavy load production:

  • High-precision servo driven V-type moving trolley and full-length guide rails
  • Heavy-duty integral gantry welding frame
  • Synchronous hydraulic clamping system with 3 groups of pressure rollers
  • Dual-power three-wire submerged arc welding system & automatic wire feeder
  • Automatic flux recovery and recycling device
  • Water-cooled copper back welding lining device for high penetration rate
  • 2 sets of automatic pole rotation roller brackets
  • Complete hydraulic station & CNC intelligent control system
  • Operation platform and electrical control cabinet
Core Product Advantages
Focus on large-diameter & heavy pole production advantages
  • Super large 2200mm pressing stroke -- specially upgraded for 2000-2500mm ultra-large diameter tapered poles, sufficient closing stroke without pole deformation
  • Intelligent dynamic seam adjustment -- CNC system automatically tracks pole taper change, dynamically adjusts clamping pressure and trolley speed to keep seam closed all the time
  • High synchronous hydraulic system -- left/right/upper three-way pressure rollers run synchronously, avoiding local extrusion marks on large pole surfaces
  • Zero-torsion welding forming -- optimized hydraulic balance structure, no seam torsion after welding, no manual correction required
  • Full head-to-tail welding effect -- servo closed-loop control ensures stable speed, greatly reduces the unwelded tail section of ultra-long 14m poles
  • Surface protection design -- three sets of pressure rollers disperse pressure effectively, protecting large pole surface from indentation and scratches
  • Visual welding monitoring -- head camera real-time seam imaging, easy observation and precise tracking
  • Water-cooled copper block welding structure -- greatly improves welding penetration for thick plates, stable weld molding
  • Automatic pole flipping welding -- intelligent lifting rotation device realizes two-seam automatic welding for octagonal poles
  • One-person intelligent operation -- highly automated process, low labor intensity and high production efficiency
Industry Application Scenarios

This heavy-duty large-diameter welding machine is mainly used for mass production of oversized pole products:

  • Ultra-large diameter 5G communication tapered monopole production
  • Heavy-duty power transmission steel pole manufacturing
  • Super high mast lighting pole & large polygonal lamp pole processing
  • Large-sized tapered tubular steel structure longitudinal seam welding
After-Sales & Service Guarantee
Service Item Service Content
Warranty 12-month full machine warranty, long-term warranty for core servo and welding system
Spare Parts Supply Long-term factory direct supply of wearing parts
Overseas Service Engineer overseas installation, commissioning and training available
Remote Support 24-hour remote fault diagnosis and parameter adjustment
Technical Documents Complete English operation manual & process guide
Frequently Asked Questions
Question Answer
What is the maximum diameter pole this heavy-duty welder can handle? HM2500 model supports large diameter from 400mm up to 2500mm, specially designed for super large tapered power poles and high mast poles.
What is the advantage of 2200mm super large pressing stroke? The upgraded long stroke ensures sufficient closing displacement for 2000-2500mm big poles, avoiding insufficient seam closing and welding defects during large-caliber pole production.
Can this machine weld thick plates over 20mm? The machine clamping force supports 25mm thickness. For high-standard penetration requirements above 20mm, secondary submerged arc surfacing welding is recommended to guarantee perfect weld quality.
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Get in touch with us
Contact Person : Mr. Wu
Tel : +86-13665117920
Fax : +86-510-68930088
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