HF Welders & Annealing Equipment
Manufacturer and supplier of Induction Welders. Our product range includes vacuum tube welders and solid state induction welders. These welders are acclaimed for their technically sound design & durability. These are designed as per the current technological developments.
Solid State Contact/Induction Welders
We provide a wide array of solid-state contact welders that have been manufactured keeping the varied customer specifications in mind. They have easy installation and maintenance features and conform to international quality standards. Made with top-notch materials, they are highly cost-effective and display efficiency in the given operations. They are also quality tested at all parameters to ensure maximum satisfaction at the clients end.
- Solid State Singal Cabinet Welders 50 – 300KW
- Solid State Induction Welders 50-1200KW
- Solid State Dual/Contact Welders 200 – 1200KW
Contact Welders are a highly energy-saving option as compared to induction welders and are most suitable for welding of open hollow sections(HSS).
Solid State Singal Cabinet Welders 50 – 300KW
EEM-1 Solid State Induction Welders 50-1200KW
EEM-1 solid state H.F welder is specially designed for straight seam welding. It includes Inverter output unit,DC power unit,central control Unit,water-water(air-water)heat exchange unit,and rectifier isolation transformer.
Inverter Output Unit
The inverter part is made up by MOSFET single-phase invert unit in parallel type. Each pair of the unit has a 50KW ability. The pairs can be built up to reach from 50KW to 1200KW power rating. Each unit has the self-diagnostics ability. All the design is to ensure easy installation and maintenance. Automatic load matching system ensures the most efficiency and lowest mill cost. Furthermore, the welding transformer is not needed.
The protection circuits are specially designed. It can ensure the stability and safety of the welder, even in open and short circuit condition. Also, it can afford coils arcing to reduce mill stop.
DC Power Unit
DC Power unit includes rectify, flight wave, and control parts. 3-phase full-controllable thyristor rectifying bridge and flight wave reactor, flight capacitor and filter ensure stable DC output and ensure high-quality welding. The stable control system ensures the safety of the welder. Current meter, Voltage meter and control system are equipped in the DC Power Unit. With these, the welder is controllable even without a central control unit.
Central Control Unit
Water-Water Heat Exchange Unit
- Sealed circulation, outer water (normal) cools down the inner water (distilled water), no scaling.
- High efficiency of heat radiation, low cost, applicable to large power H.F equipment.
- Reservoir is used for outer water.
Rectifier Isolation Transformer
Two-dimension Adjustable Table
Key Features of Solid State H.F Welder
Simple circuit and flexible installation: Using series-parallel complex resonance circuit, the power only needs to connect main circuit cable between rectifier power supply and the transformer and inverter unit. The installation only needs 2-3 days under good support of the user.
Complete protection and easy maintenance: Equipment has perfect failure alarm and fault display system. Once there is a failure, the LCD can show the fault location clearly, so that maintenance personnel can quickly find out the cause of the failure and troubleshoot.
Small Harmonic Interference, no pollution to the power grid: With the transformer, RC and LC filter network, the harmonic of solid state H.F welder is small. When solid state H.F welder operates at full power, the power factor can reach 0.9 or more.
High efficiency, power saving and less cooling water: Compared with the vacuum tube welder, the solid state H.F can save 25%-30% power. It doesn’t’ need reservoir for out water, thus, the cooling water consumption reduces by 70%.
Good welding quality with less spatter: The power supply waveform of solid state H.F is stable, and the steel tube weld tends to be a straight line. The tests of drawing, flattening, flaring, water pressure and other performance are qualified.
Solid State Dual/Contact Welders 200 – 1200KW
Vacuum Tube Welders
Eddy Electro Mech has been the largest manufacturer of HF Induction Welders based on vacuum tube (Triode Valve) technology, for nearly two decades. These welders have remained highly popular with customers, making Eddy Electro Mech the largest selling and most trusted brand in India.Our clients can avail from us Vacuum Tube Welders that are manufactured with precision as per the Vacuum Tube (Triode Valve) technology. These are appreciated by all our clients for their high performance and durability. The various important features of our product are mentioned below:
The key features of Vacuum Tube Welders are as follows:
- Has accurate Weld Power Control
- Negligible Leaks
- Minimum Operating Cost
- Low Power Consumption
Advanced Features:
Alphanumeric display housed in remote control unit shows output power and fault messages PLC for welder operating sequence and fault diagnostics Speed /power control greatly reduces open seam tube through accurate weld power control on start-up and shut down
Thyristor (SCR) power control with low ripple LC filter for smooth minimum weld bead at all power level
Air cooled high voltage transformer eliminates leaks, toxics, inflammable or other problems associated with liquid cooled designs
Automatic load impedance matching system to achieve optimum matching condition at all loads-optimum efficiency with minimum operating cost
Seam/Bright Annealing Equipment
IGBT intermediate frequency power supply and silicon controlled medium frequency induction heating equipment are used for on-line annealing of steel pipe welds. Medium frequency power supply has high heating efficiency and excellent heat treatment effect. The PLC+HMI and high precision thermometer are used to realize the closed-loop temperature control of the weld seam, and the annealing temperature can be precisely controlled.
Technical features
- High heating efficiency of medium frequency power supply unit and good effect of seam heat treatment.
- IGBT or SCR medium frequency power supply unit with working frequency of 1~8kHz are optional. It has features of simple power supply structure, high safety and automatic load matching, which can be suitable for steel pipe seam annealing with different diameter and thickness.
- The positioning table can adjust the space between inductor and seam, and can lift the inductor rapidly to avoid the impact between inductor and steel pipe with high safety.
