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  • Mz 1250a Arc Submerged Automatic Welding Machine - China

    price: contact company for price

    The MZ series new- generation Inverter submerged arc welding machine

    produced by our company adopts the advanced soft switching inverter

    based on the core fitting of imported IGBT and microcrystal magnetic

    cores with the 20KHZ inverter frequency. The product owns high load

    duty cycle with arc igniting current and current thrust control

    function. It owns the advantages of automatic compensation function for

    voltage fluctuation, stable arc, even weld crater and good weld

    formation. And on the other hand, it first applies the digital circuit

    control technique to control the current, voltage and speed with high

    speed and precision, which not only reduces the weight and volume much

    and improves the mobility but simplifies the operation of facility,

    getting good arc ignition and welding performance to improve the

    precision of welding.

    Due to adopting the digital circuit control, the pre- welding set value can be displayed by the number. The actual value is displayed during the welding, and the value is locked automatically after welding, which makes convenience for presetting and control of welding criterion.

    Its top inverting frequency of 20KHZ reduces the current fluctuation’s influence for arc much, which makes arcing and arc static current very low ( 20A) . The arc burns steadily and quietly with dense arc and small heat affected zone.

    Considering all aspects of factors’ influence for the welding machine in designing, the advanced design is adopted in some minutiae. The inner bare line adopts the insulating varnish with high insulating strength for protection and waterproof design is adopted in the design of the shell that can cope with rugged environment. In addition, fully considering the economy of welding machine use in the design, the power consumption efficiency of the MZ submerged arc welding machine reaches 90% , and the power factor reaches 0.89. Finally these serials advanced design passes the strictest test and reaches the following standard: CCC- meets the GB15579.1- 2004 standard; shell protection grade: IP21S, suitable for field use, insulation grade: F, waterproof and preventing foreign materials.

    Brief Introduction to Characteristics:

    ● The welding power adopts the IGBT soft- switching inversion technology, which ensures the high stability of the welding current when the network voltage fluctuates or the arc length changes. The arc has a strong ability in self- adjusting.

    ● It has the function of adjustment of the arc- starting current. It may adjust the arc- starting current according to the technical requirement for the welding, so the success rate of arc starting is greatly improved.

    ● It has the function of adjustment of the thrust current, which ensures the formation of weld, makes it convenient for the adjustment of the weld penetration. Thus the adaptability of the welding power to the welding technology is improved.

    ● Compatible with the manual arc- welding; so it may be used in carbon arc air gouging, manual arc welding etc.

    This series of welding machines have a wide range of adjustment to the current. The minimum current is less than or equal to 60 A;

    ● Light in weight, small in volume and easy to be removed.

    ● With high efficiency and high power factor, it is an energy- efficient equipment.


    MZ- 1250

    Power voltage/ frequency

    Three- phase 380V±10% / 50HZ

    Rated input capacity


    Rated input current


    Rated load continuous


    Current adjustment scope

    60- 1250A

    Output no- load voltage




    Power factor


    Diameter of welding wire

    3- 6mm

    Weight of welding machine ( kg)


    Overall dimension ( mm)


    Input voltage( V)

    Alternating current 110

    Rated input capacity( VA)


    Applied welding wire diameter( mm)

    2- 6

    Welding speed scope( cm/ min)

    10- 150

    Feeding speed scope( cm/ min)

    40- 200

    Arcing Mode

    Scratch, automatic

    Flux capacity of flux plate


    Welding wire capacity of welding wire plate( kg)

    Closed type 15, open type 25

    Horizontal move adjustment scope of center column( mm)


    Turning angle of beam upright column

    ≥ ±90°

    Retractable distance of beam( mm)


    Deflection angle scope of machine head


    Upwards angle scope of machine head

    Elevation and subsidence scope of current contact nozzle ( mm)


    Elevation and subsidence scope of center column( mm)


    Weight of tractor( kg)


    Company Contact:

    • Phone: 8615165162156

    • Address: No.182-41, Gongye North Rd, Lieheng, Jinan, Shando, Jinan, China

    • Email: Email

    Published date: December 24, 2014 -

    • Business Description: Founded in 2003, Jinan Huaao Welding Machine Co., Ltd is a hi tech

      enterprise specializing in producing high power inverter welding

      machine. The company employs 70 people, including 20 technical personnel

      with technical secondary school or junior college degree, has

      established sound design, development, production and marketing system,

      and formed solid strength. The company has established partnership with

      Shandong University Scientific Research Institute, and develops new

      products constantly through independent innovation and launches a number

      of new products every year. The company adopts modern enterprise

      management system, and has passed ISO9001: 2000 Quality Management

      System Certification, realizing whole process control from product

      development and production management, quality assurance, marketing to

      after sales service. The company was rated as Contract stressing & Promise

      keeping Enterprise by Jinan Municipal Peoples Government for two

      successive years. Its seven serial products were awarded "CCC"

      Certificate issued by China Quality Certification Center.

      All the companys products adopt soft switch and full bridge IGBT technology, and cover seven series including internationally advanced NBC series IGBT inverter carbon dioxide gas welding machine, ZX7 series IGBT inverter manual arc welding machine, LGK series IGBT inverter air plasma cutting machine, MZ series IGBT inverter automatically submerged arc welding machine, WS series IGBT inverter welding machine, WSM inverter DC welding machine, WSME AC DC pulse inverter welding machine seven series, In particular, WSM series and WSME series have realized digital and been put into production since 2006. In January 2008, the company successfully developed the ZX7 2000A inverter DC arc welding machine and LGK 250A inverter air plasma cutting machine, with technological innovation ranking the first in China. And, we also could produce the welding machine with input voltage DC 250V, DC 550V, AC 660V.

      In 2007, the Company developed a new generation of energy saving inverter welding machine, which is waterproof, anti mist, anti corrosion, and anti electronic jamming, to meet the requirements of poor working conditions of global shipbuilding industry. These products have significant effect in use and won high appraisal of customers.

      In 2010, Huaao welding make a further machine technology development. Basing on the market and customers request, Huaao welding redesign and assemble the machine connection to diesel generator for special power supply situation. No load voltage below 25V is designed on MMA machine for more safe working condition. New technology for cellulose electrode welding on Huaao MMA machine will be much better than other at whole market of Huaao.


      In todays global economic integration, Huaao Welding Machine Co., Ltd will continue to implement the quality principle of "to win by quality, to serve customers with faith, to satisfy customers with warmth," taking quality as enterprise s life, developing enterprise based on honesty and trustworthiness, and taking users needs as the goal. We are looking forward to cooperate with domestic and foreign merchants, to continuously expand the development space of products and the industry, and promote the development of welding technology of China!

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