• MV900 60KVA Induction Heating System
MV900 60KVA Induction Heating System
  • ZK
  • SHENZHEN

The MV900 series is suitable for various high and low temperature heating applications,including preheating before welding,postheating after welding, and hot disassembly and assembly of rotors,such as heat treatment/postheating of circumferential welds,preheating of spade teeth,postheating of flange interfaces,preheating of anti-corrosion coatings for pipelines,preheating of coatings for main urban water supply pipelines,and flat blanket preheating for offshore platform shipbuilding.

Induction Heating System Introduction

The MV900 series fits all sorts of high/low-temperature heating needs: preheating work ahead of welding, post-weld heating processing, plus hot mounting and dismounting for rotors. In real production, it is widely used for circumferential weld heat treatment/postheating, spade tooth preheating, flange connection postheating, preheating before pipeline anti-corrosion coating, coating preheating of core urban water supply pipelines, and flat heating blanket preheating during offshore platform and ship manufacturing.

Induction heating

I. Basic Concept

Induction heating equipment relies on electromagnetic induction to deliver highly efficient heating:it converts electricity into heat to realize quick and precise thermal processing of metal workpieces.The device’s key parts are high-frequency AC power supply and induction coil,which have gained broad adoption in metal processing,mechanical assembly and relevant sectors.

II. Working Principle

  1. Power Conversion

  2. The unit shifts regular 50Hz industrial AC to high-frequency alternating current, which supplies the essential energy required for subsequent magnetic field creation.

  3. Magnetic Field Production

  4. High-frequency current travelling in the induction coil creates an alternating magnetic field whose magnitude varies rapidly alongside current frequency.

  5. Heating via Eddy Currents

  6. A conductive workpiece set close to the induction coil will have eddy currents induced internally by varying magnetic flux. Owing to the workpiece’s electrical resistance, these circulating currents release heat and quickly raise the part’s temperature.

III. Core Application Fields

  1. Metal Heat Treatment

  2. Adaptable to quenching, annealing, tempering treatments to upgrade metal hardness, toughness and overall mechanical characteristics.

  3. Welding Application

  4. Matches welding needs for copper, aluminum, silver and other metals; homogeneous heating of welding regions effectively upgrades welding outcomes.

  5. Forging Forming

  6. Realizes pinpoint heating for bar and sheet metal terminals and furnishes reliable heat supply during forging, bending processing.

  7. Pipeline & Thermal Mounting

  8. Covers industrial pipeline preheating, weld heat treatment, plus thermal assembly and disassembly for motor bearings and mechanical parts.

  9. IV.Product Features Introduction:

  • Industry-leading wide inductance design

  • This electromagnetic induction heating system features an extensively tunable inductance structure (2μH~600μH). Its inductance spectrum covers low values for accurate partial heating and high values for deep heating of large-size components to fit multiple industrial working environments. Thanks to adaptive resonant control, the system maintains optimal energy coupling performance when metal types or workpiece dimensions alter, substantially lifting compatibility and heating effectiveness.

  • Integrated isolation transformer

  • High-frequency eddy current losses are lowered and equipment efficiency raised via nanocrystalline magnetic core application. The isolation transformer curbs high-frequency inverter noise as well as grid electromagnetic interference, while galvanically isolating output and power grid for enhanced output safety.
  • Precise temperature control improves process quality.

    --Boasting high-accuracy temperature control within ±3℃,with the best precision reaching ±1℃,this equipment works reliably under tough operating environments for semiconductor production and precision metal heat treatment.

  • --Thanks to contact-free heating mode,oxidation and part deformation are prevented to keep material performance steady.

  • High stability and comprehensive fault mechanisms  Capable of 24-hour uninterrupted full-load running, the three-phase 400VAC model tolerates ±20% fluctuation of input mains voltage. Multiple safeguard circuits are integrated to guard against overvoltage, overcurrent, phase failure and excessive temperature.

  • Safe and reliable, industrial-grade protection design

  • Available in separate air-cooled and complete water-cooled structural options,the medium-frequency induction heating power supply features PCBs and matching components protected via three-layer conformal coating,adapting to complicated working conditions represented by offshore platforms.

  • Data storage

    The system instantly shows and archives heating temperature curves.Users can look up heating data on demand; once heating finishes, historical records are exportable to a USB drive.

  • Multi-segment process curve

    This system boasts abundant control modes, covering constant power regulation,power-time curve control,constant temperature running (the constant temperature module is an optional add-on) and temperature-time curve control. Different modes are selectable to match distinct production conditions and application requirements.

  • Remote control (customized module)

    This unit incorporates multiple communication interfaces including WiFi/5G wireless,RS485 and TCP/IP MODBUS, supporting remote supervision and control functions.

  • Diverse power control modes

  • Output power can be controlled via 0-10V,0-5V,4-20mA,and digital adjustment.


V.MV900 Specifications and Parameters

S/NModelParametersInductance rangeDimensionWeight



1



MV900-4T0020AA

Power;20KVA

Input voltage:3-phase 380V±15%)

Frequency range:3-30K

MaxInput Current:35A



3-150UH


         W:303MM

H:437MM

          D:500MM



26.5KG



2



MV900-4T0040AA

Power:40KVA

Input voltage:3-Phase380V(±15%)

Frequency:3-30K

Max.Input Current:68A



5-200UH


         W:375MM

H:624MM

          D:570MM



49.5KG



3



MV900-4T0060AA

Power:60KVA

Input voltage:3-Phase380V(±15%)

Frequency:3-30K

Max.Input Current:100A



5-260UH


         W:554MM

H:969MM

          D:810MM



155KG



4



MV900-4T0080AA

Power:80KVA

Input voltage:3-Phase380V(±15%)

Frequency:3-30K

Max.Input Current:135A



5-260UH


         W:554MM

H:969MM

          D:810MM



160KG



5



MV900-4T0120AA

Power:120KVA

Input voltage:3-Phase380V(±15%)

Frequency:3-30K

Max.Input Current:200A



5-350UH


        W:654MM

H:1040MM

         D:910MM



232KG



6



MV900-4T0160AA

Power:160KVA

Input voltage:3-Phase380V(±15%)

Frequency:3-15K

Max.Input Current:270A



10-400UH


        W:804MM

H:1250MM

         D:1165MM



300KG



7



MV900-4T0200AA

Power:200KVA

Input voltage:3-Phase380V(±15%)

Frequency:3-15K

Max.Input Current:340A



10-400UH


        W:804MM

        H:1250MM

        D:1165MM



320KG


MV900 Series Specifications

ModelPower capacity (kVA)Maximum input current (A)
Three-phase power supply: 350…480V, 50/60Hz
20kw2032
25kw2541
40kw4066
60kw6098
80kw80132
100kw100164
120kw120198
160kw160264
200kw
200396
250kw250413
300kw300495
350kw350578
400kw
400660
450kw450743
500kw500825

Product wiring diagram(External wiring diagram)

Metal heating

Internal control board wiring diagram

Three phase 380V

Installation Environment:

1) Ambient Temperature: Ambient temperature has a significant impact on the lifespan of the variable frequency induction heating power supply. The operating temperature must not exceed the allowable range (-10℃~45℃).

2) Place in a location free from vibration.

3) Avoid installation in direct sunlight, damp areas, or areas with water droplets.

4) Avoid installation in locations with corrosive, flammable, or explosive gases in the air.

MV900 model applications:

A、Circumferential Weld Heat Treatment‌ Control /PWHT for Girth Welds

Induction heatingMetal heating

1.The C-shaped induction coil fixture is mounted on an electrically powered cart,enabling vertical lifting and horizontal extension of the inductor via cart movement control.

2.The inductor shall incorporate an arc-adjustment mechanism to accommodate workpieces of varying diameters during heating.

B、Bucket Tooth Preheating

Three phase 380V

1.Custom medium-frequency power supply (2–25 kHz)‌: Adaptable to tooth profiles ranging from small gear teeth to mega-sized mining teeth.

2.Modular coil configurations‌: Rapid-change design enabling conformation to complex shovel tooth geometries.  

3.Intelligent temperature control system‌: Infrared pyrometry + closed-loop PLC control ensuring process reproducibility (±10℃ deviation). 

C、‌Rotor Thermal Removal & Installation

Induction heatingMetal heating

1.Flexible heating cable design‌:Conformable to complex structures (e.g.rotor shafts,stator bores) with 360° wraparound capability.

2.‌Fixed-coil configuration‌:Reusable for repeatable builds with >92% thermal efficiency.

3.‌Rapid uniform heating‌:Cuts disassembly/installation time by 3X+ (benchmark:40min → 12min @ Ø500mm journal).

4.‌Localized heating‌:Selective targeting of mating surfaces (bearing journals,core seats) preventing bulk thermal distortion (ΔT<30℃ gradient).

D、Flexible Heating Blanket

Three phase 380VInduction heating

1.‌Flexible contouring capability‌:Heating blankets conform tightly to pipes,curved surfaces,and contoured geometries (e.g.wind turbine blades,ship welding grooves) ‌— inaccessible to rigid coils.

2.‌Custom-engineered sizing‌:Supports non-standard designs with coverage ‌from 200cm² to 50m²‌ 

3.Magnetic/Vectran® strap securing‌: Enables 80% faster wrap completion ‌vs manual coil winding‌.

E.‌Pipeline Preheating for Anti-Corrosion Coating‌

Metal heatingThree phase 380V

1.‌Deployable heating blanket solution‌:Conforms tightly to pipelines,curved surfaces,and contoured geometries. Universal pipe compatibility

2.‌Clamshell heater alternative‌:‌Pre-engineered sizing‌ for fixed pipe diameters,‌Minimizes setup time by 75% vs custom wrapping

F、‌Precision Wrapping Preheating for Flanged Joints & T Fittings

Induction heatingMetal heating

1.Conformal Wrap Heating Technology:chieves full geometric conformance on pipelines & curved surfaces,complex geometries (wind turbine blades,fossil-fuel boiler pressure parts,ship welding grooves,extruded tees)

2.Custom Cable Configuration:Heating cable lengths:10m to 60m (customizable in 5m increments)

MV900 Product accessories:

A.Output Extension Cable‌(Customizable Length per Project Requirements):

Three phase 380VInduction heating

B.Thermocouple Assembly:

Metal heatingThree phase 380V

C、‌Induction Coil Assembly(Customizable Length per Application Requirements):

Induction heatingMetal heatingThree phase 380V

D、Blanket type Flexible Induction Coil:

Induction heatingMetal heating

E、‌Clamshell Fixture Induction Coil :

Three phase 380VInduction heatingMetal heating

MV900 System Application Cases Connection Diagram

A.Clamshell Fixture Induction Heating Application Diagram

Three phase 380V

B.C-Frame Fixture Induction Heating Application Diagram

Induction heating

C.Helical Air-Cooled Induction Cable Heating Application Diagram

Metal heating

D.Blanket-Type Air-Cooled Induction Heating Application Diagram

Three phase 380V


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