DH 28 - Hero Section
Advanced IGBT Technology

DH 28

IGBT Vertical Bar Welding & Arc Gouging System

Advanced IGBT vertical bar welding machine with 500A maximum output and 60% duty cycle. Features digital meter control, 100m extension wire support, arc gouging capability with 10mm carbon rods, and comprehensive protection for construction and steel structural projects.

500A
Maximum Output
28mm
Steel Bar Ø
100m
Extension Wire
Sibitweld Bar welding machines to weld 28mm steel vertically together

Bar welding Joints 

DH 28 Technical Specifications
DH 28 Technical Specifications
Parameter Unit Specification
Input Characteristics
Input Voltage V 380V AC ±10% 3-Phase
Input Capacity kVA 33.6
Output Characteristics
No-Load Output Voltage V 110
Maximum Output Current A 500
Performance Specifications
Duty Cycle % 60%
Core Technology
Inverter Technology - Advanced IGBT
Welding Capabilities
Steel Bar Diameter Range mm 8~28
Welding Process - Vertical Bar Welding
Arc Gouging Compatible mm YES (10mm carbon rods)
System Features
Digital Meter - YES (Precise current display)
Extension Wire Support m Up to 100
Required Clamp Size - SIZE 2 (for steel bars ≤28mm)
Recommended Flux - HJ431
Optional Cable mm² 5m 50mm² pure copper cable
Enclosure/Standards/Approvals
Protection Class IP IP23S
Insulation Class Grade H
Physical Specifications
Dimensions (L × W × H) mm 432 × 215 × 340
Net Weight kg 17.5
DH 28 Vertical Bar Welding Machine | Advanced IGBT Technology

Product Overview

ADVANCED IGBT TECHNOLOGY · VERTICAL BAR WELDING

Specially designed vertical bar welding machine featuring advanced IGBT inverter technology for industrial and heavy industrial use. Delivers reliable and durable performance with 500A maximum output current for welding steel bars 8-28mm in diameter, supports arc gouging with 10mm carbon rods, extension wire support up to 100 meters, digital meter for precise current control, and intelligent protection in a 17.5kg design for building constructions and steel structural projects.

Advanced IGBT: 500A for 28mm Steel Bar Welding

500A maximum output with advanced IGBT inverter technology—vertical bar welding for steel bars 8-28mm diameter, arc gouging with 10mm carbon rods, three-phase AC380V ±10% input, 33.6kVA input capacity, 60% duty cycle, digital meter for precise current display, extension wire support up to 100 meters, intelligent overload and overheat protection, SIZE 2 clamp compatibility, HJ431 flux recommendation, and optional 5m 50mm² pure copper cable in a 17.5kg professional configuration.

Target Applications

Vertical steel butt welding for 28mm steel bars, building constructions, steel structural projects, construction and structural engineering.

Core Technology

Advanced IGBT inverter technology, 500A maximum output, 60% duty cycle, digital meter for precise current control, extension wire support up to 100 meters.

Protection Systems

Intelligent overload and overheat protection mechanisms, IP23S rating, Grade H insulation for safety and longevity.

Key Features

Advanced IGBT technology for vertical bar welding

Advanced IGBT Technology

Incorporates advanced IGBT inverter devices for enhanced performance, reliability, and consistent arc quality in vertical bar welding.

High Output Current

Delivers 500A maximum output current for efficient welding of steel bars 8-28mm in diameter with professional-grade performance.

Vertical Bar Welding

Specially designed for welding two pieces of 28mm steel vertically together, ideal for building constructions and steel structural projects.

Arc Gouging Capability

Supports arc gouging with 10mm carbon rods, adding versatility and expanding functionality for various industrial applications.

Extended Welding Area

Supports extension wires up to 100 meters, significantly increasing the welding area and operational flexibility on large construction sites.

Digital Meter

Allows for accurate presetting and display of welding current for precise control and consistent welding quality.

Intelligent Protection

Equipped with overload and overheat protection mechanisms to ensure safety, longevity, and reliable operation during demanding use.

Three-Phase Power

AC380V ±10% three-phase input with 33.6kVA input capacity provides robust power for heavy industrial bar welding applications.

60% Duty Cycle

60% duty cycle ensures reliable continuous operation for demanding vertical bar welding and construction applications.

Portable Design

17.5kg net weight with compact 432×215×340mm dimensions provides portability for various construction sites and projects.

SIZE 2 Clamp Compatibility

Requires SIZE 2 clamp applicable to steel bars ≤28mm, ensuring secure and reliable clamping for vertical bar welding operations.

HJ431 Flux Recommendation

Recommended HJ431 steel bar welding flux ensures optimal welding quality and consistent results in vertical bar welding applications.

Optional Pure Copper Cable

Optional 5m 50mm² pure copper cable provides enhanced conductivity and performance for extended welding operations.

IP23S Protection

Environmental protection with Grade H insulation ensures durability in construction and heavy industrial environments.

Professional Bar Welding

Built to last and widely applied in building constructions and steel structural projects with reliable and durable performance.

Summary

The DH 28 is a specially designed vertical bar welding machine featuring advanced IGBT inverter technology for industrial and heavy industrial use. Delivers 500A maximum output current for efficient welding of steel bars 8-28mm in diameter with 60% duty cycle. Ideal for welding two pieces of 28mm steel vertically together in building constructions and steel structural projects. Advanced IGBT inverter technology provides enhanced performance, reliability, and consistent arc quality. Supports arc gouging with 10mm carbon rods for added versatility. Digital meter allows accurate presetting and display of welding current for precise control. Extended welding area capability with extension wire support up to 100 meters significantly increases operational flexibility on large construction sites. Three-phase AC380V ±10% input with 33.6kVA input capacity provides robust power. 110V no-load output voltage. Intelligent overload and overheat protection mechanisms ensure safety and longevity. Requires SIZE 2 clamp applicable to steel bars ≤28mm with HJ431 steel bar welding flux recommendation. Optional 5m 50mm² pure copper cable available for enhanced conductivity. 17.5kg net weight with compact 432×215×340mm dimensions provides portability. IP23S rating with Grade H insulation. Built to last and widely applied in vertical steel butt welding, construction and structural engineering, building constructions, and steel structural projects.

Advanced IGBT: 500A for 28mm Steel Bar Welding

Specially designed vertical bar welding machine with advanced IGBT inverter technology delivers 500A maximum output for steel bars 8-28mm diameter, arc gouging with 10mm carbon rods, extension wire support up to 100 meters, digital meter for precise control, intelligent protection, SIZE 2 clamp compatibility, and optional 5m 50mm² pure copper cable in a 17.5kg design for building constructions and steel structural projects.

Why Choose Sibit Welding Equipment?

Partner with Sibit for industry-leading welding equipment that delivers precision, reliability, and performance in every weld.

Core Advantages

Precision Engineering

Experience superior weld quality through meticulously engineered equipment designed to deliver consistent, accurate results in every application.

Advanced Technology

Boost productivity and efficiency with cutting-edge welding technology that streamlines operations and maximizes output.

Reliable Performance

Count on uninterrupted operation with robust equipment built for demanding industrial environments and continuous use.

Key Benefits

01

Comprehensive Range

Access a complete selection of equipment and accessories tailored to meet all your welding requirements and applications.

02

Expert Support

Benefit from dedicated technical assistance and professional service ensuring optimal performance and maximum uptime.

03

Proven Excellence

Trust in equipment backed by rigorous quality control and industry-leading standards for consistent results.

Partner with Sibit for Excellence

Discover industry-leading welding equipment that delivers precision, reliability, and performance in every weld. Our commitment to quality and innovation ensures your success.

Contact us today to learn more about our products and how they can transform your welding operations and drive business growth.

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