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Plasma Transferred Arc Welding (PTA) Machines

Arcraft is the name to turn for innovative technology. With Plasma Transferred Arc Welding we provide high productivity, high quality of powder deposits with minimum powder loss. Our advanced technology ensures significant lower cost for hardfacing , surfacing and cladding even in the most challenging area.

We are the manufacturer, supplier and exporter of Plasma Transferred Arc – PTA welding machine.


pta applications

In a competition with laser surfacing the PTA technology offers much more high productivity, comparable high quality of deposits and significantly lower costs. Typical application areas of the PTA technology are:

  • Extruding machine screws
  • Valves
  • Valve Seats of internal combustion engines (motorcar, marine, locomotive etc.)
  • Accessories for ships, petroleum and chemical industries and power generation
  • Cutting tools (milling cutters, broaches, knifes)
  • Equipment for mining, crushing, rolling, road building and tunneling
  • Process equipment in ceramics and cement production
  • Moulds and forging dies
  • Pulp and paper industry equipment
  • Agricultural equipment
  • Parts for nuclear plants
Why choose PTA Hardfacing? ( Plasma Transferred Arc ) Click to See Live Demo PTA
Download PDF PTA Presentation
PTA 75mmID torch Video PTA 50mm ID torch Video

plasma transfrerred arc welding system


  • Plasma Transferred Arc (PTA) System is a high energy, inert gas welding process.
  • Argon is basically used for arc plasma supply, powder transport and molten material shielding. It produces a very high quality deposit offering optimal protection with minimal dilution or deformation of the base material.
  • It is a process that deposits very precise coatings of perfectly controlled alloys on mechanical parts that are subject to intense wear; significantly extending their service life.
  • PTA technology is particularly effective in protection against corrosion, thermal shock and abrasion.
  • A wide range of overlay alloys is available for practically any part.
  • Some alloys are very hard; others are softer with hard abrasion-resistant particles dispersed in a matrix. Certain alloys are made to rebuild a part of required dimension while others are designed to be a final overlay that protects the work surface.

PTA Units

System consist of Power Source, Water Chiller, Powder Feeder, Oscillator, Welding Positioner, Controller, Column and Boom, Torch.

PTA Power Source Water Chiller / Recirculator Powder Feeder
Power Source
Water Chiller / Recirculator
Powder Feeder
pta torch weaver (Welding Oscillator) Column & Boom
PTA Torch Weaver (Welding Oscillator) Column & Boom
Process Control Panel Welding Positioner  
Process Control Panel Welding Positioner  

Check out our Manufactured PTA Machines benefits, applications, specifications and scope of supply


  • IGBT inverter based with analog/digital controls & integrated HF arcing system that tremendously increases its efficiency and switching characteristic
  • Low Power Consumption – Optimized design of ferrite core transformer ensures low power consumption at 100% duty cycle
  • Excellent Power Factor – Power factor correction capacitor ensures Power Factor of 0.95 ensuring lowest power consumption
  • Stepless Power Control – Power controlled in steps in high capacity machines for extended power saving
  • Easy Arc Striking – High open circuit voltage to accommodate easy arc striking
  • Safety against Voltage Fluctuation & Overload – Fully protected power source against voltage fluctuation & overload added with complete safety interlocking for torch protection against gas and water failure
  • Easy to Operate – Easy to operate and maintain torch head for operator's convenience
  • High deposition Capacity – Highly improved torch design offers higher deposition capacity at low power output.
  • Long Life of Consumables – Torch design guarantees long life of consumables.
  • Long Cable Length – Standard Torch cable length of 4 meters with option to extend up to 8 meters


Technical Specifications of PTA System

Model PTA 200 PTA 400
Input Supply 415VAC / 50-60Hz / 3 - Ø 415VAC / 50-60Hz / 3 - Ø
Max Installed Power (Hp) 11 24
Input kVA @ 60% Duty Cycle 9.7 19.4
Input kVA @ 100% Duty Cycle 7.5 14.9
Open Circuit Voltage OCV (VDC) 75 – 85 75 – 85
Current Range (A) 5 – 200 5 – 400
Current @ 60% Duty Cycle (A) 200 400
Current @ 100% Duty Cycle (A) 155 310
Pilot Arc Current (A) 10 – 25 10 – 25
Gas Parameter
Plasma Gas Flow (LPM) 0 – 5 0 – 5
Shielding Gas Flow (LPM) 0 – 10 0 – 10
Carrier Gas Flow (LPM) 0 – 15 0 – 15
Pilot Parameter
Pilot Arc Current 10 – 25 10 – 25
Up / Down Slope (sec) 1 – 10 1 – 10
Pre / Post Flow (sec) 1 – 10 1 – 10
Programmable Parameter Welding
Gas Pre Flow (sec) 0 – 99.9 0 – 99.9
Gas Post Flow (sec) 0 – 99.9 0 – 99.9
Current Up Slope (sec) 0 – 99.9 0 – 99.9
Current Up Slope (sec) 0 – 99.9 0 – 99.9
Base Current (A) 5 – 200 5 – 400
Degree of Rotation 0 – 360 0 – 360
Degree of Overlap 0 – 360 0 – 360
Boom Step Over 0 – 999 0 – 999
Number of Bands 0 – 999 0 – 999
Rotation Speed
Boom Travel Speed
Moving Base Optional Optional
Rotating Base Optional Optional
Oscillation Width (mm) 0 – 25 0 – 25
Oscillation Per Minute 0 – 80 0 – 80
Dwell Time Left (sec) 0 – 99.9 0 – 99.9
Dwell Time Right (sec) 0 – 99.9 0 – 99.9
Powder Feeder
Hopper Volume (cc) 700 700
Powder Feed Rate Auto w.r.t. current Auto w.r.t. current
Feeder On / Off Auto with Arc Auto with Arc
Feed Slope Down Auto w.r.t. current down slope Auto w.r.t. current down slope
Water Chiller
Flow Rate (LPM) 5 5
Outlet Temperature (Deg C) 10 – 30 10 – 30
Tank Capacity (Liters) 25 / 50 / 100 25 / 50 / 100
Cooling Capacity (Ton) 1 / 2 / 3 1 / 2 / 3
Current Capacity (A) 150 350
Duty Cycle (%) 100 100
Option ID / OD ID / OD
Number of Programs 999 999
Mother Board Intel Dual Core Intel Dual Core
Operating System Embedded Microsoft XP Embedded Microsoft XP
Flash Drive
PLC 32 I / O 32 I / O
Current Pre-Setting Facility Provided Provided
High Frequency Test Provided Provided
Water Failure Trip Provided Provided
Gas Failure Trip Provided Provided
Digital Ammeter & Voltmeter Provided Provided
OCV Test Provided Provided


P.T.A. Deposit shows the following characteristics:

  • Reduces Cost –Restoring a worn part to "as new" condition generally costs between 20-70% of a brand new replacement part
  • Prolongs Equipment Life – Service life increases of 3 to 10 times are common with properly overlaid parts
  • Reduces Downtime – Parts last longer and fewer shutdowns are required
  • Less Spare Parts Inventory – There is no need to keep numerous spare parts when worn parts can be rebuilt
  • An attractive bead with no signs of oxidation and with little or no ripple
  • Very low dilution
  • High, density, no porosity & no inclusions
  • Micro-photos or x-rays show the deposits to be of high density & metallurgically bonded to the Substrate
Scope of supply includes:
  • Inverter Power Source (Make: Lincoln Electric)
  • PTA OD Torch Head 350 Amp with 4 mtr Cable
  • Water Chiller cum Re-Circulator
  • Powder Feeder Positive Displacement
  • Digital Oscillator
  • Welding Positioner
  • Column & Boom
  • Controller for Hardfacing System
  • Consumables

Custom built computer controlled systems are available with touch screen facility with customized software as per the requirement of the jobs for Circular or Linear welds. Circular weld can have option of Banding with step over facility typically to overlay large surface area or groove in circular form Or Spiral without step over option for screw conveyors.Linear option can be provided with only Boom travel or combination of Boom and Moving base of column & boom to give zig-zag pattern to form square or rectangular shape of deposit over large surface areas.

Plasma Transferred Arc (PTA)
& Oxy- Acetylene Process
Plasma Transferred Arc (PTA) Plasma Transferred Arc (PTA) Welding



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Plasma Cutting Machines

For precision cutting of Stainless steel, Aluminium and all other Ferrous and Non-ferrous metals.
Stainless Steel cutting upto 150 mm thick plates.

PTA Hardfacing & Cladding

(PTA) for Hardfacing / Cladding / Reclamation & Protection of Mechanical parts.

Welding Automation

Increase Productivity and    Capacity
Repeatable high quality    welds
Enhance Quality
Custom made solutions

Plasma Welding

Less sensitivity to changes in  
 Arc length.

Micro Plasma Welding Machines

 Precision welding of     minature    
 Controlled Arc at low currents
 Automated welding at low
 With built-in Pilot arcing     system.

Micro TIG Welding Machines

 Precision welding of     minature parts
 Ideal for smaller repair or
    Assembly work.
 Built-in high frequency     ignition.

Welding Inverters

Light weight & compact : 80% less weight compared to conventional machines.

Arcraft Plasma Equipments (India) Pvt. Ltd. Manufacturers Suppliers and Exporter of
Plasma Welding, Plasma Transferred Arc Welding (PTA), Plasma Cutting Machine, Micro Plasma Welding Machine, Micro Tig Welding Machine, Hard Bander, welding inverter, welding automation, hard banding machine, welding positioners, welding Oscillator mumbai, india. manufacturers, suppliers and Exporter of AC Welding Machines, Mig welding Machines, Shape Cutting Machines, Special Purpose Machines for hardfacing and cladding. mumbai. india.

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