•  

  • The ARCJET-99 ED model gun is operated with a 24V DC semi servo motor to ensure safe working.
  • Light weight therefore easy to hand operate.
  • The encoder feedback received from the semi servo motor displays precise wire feed speed.
• 

• Description	Value
  Weight	4.0 Kg.
  Size	L - 392mm, W - 88mm, H - 200mm
  Drive	DC Semi Servo

•  

  • New technology for power supply in combination with highly accurate wire feed and modified air cap geometry.
  • Allows controlled and uniform energy transfer onto the wire being sprayed.
  • Flexible energy transfer based on application.
  • Top tilt opening for easy access of control panel.
• 

• ARC Spray System	Model 96/200	Model 96/400	Model 96/600	Model 101/700
  Power Requirement	7Kw	15Kw	25Kw	30Kw
  Input Supply	415 V / 3 P / 50-60hz	415 V /3 P /50-60hz	415 V / 3 P / 50-60hz	415 V / 3 P / 50-60hz
  High Velocity Option installed	No	Yes	Yes	Yes
  Wire Size	1.6mm	1.6mm - 3.17mm	2mm - 3.17mm	2mm - 3.17mm

• This system is designed for onsite Zinc or Aluminium spray work, gun is light weight most suited for hand held.

  • System Comprises of :-
  • • Arcjet 101 gun. (Design patented)
    • Power source 700 amp with built in control panel [420/3P/50-60 Hz].
    • Wire drive unit with wire spool stand.
    • Wire drum dispenser [optional] – 02 nos.
  • Features :-
  • • Arcjet 101 is a light weight (1.30 kg) gun with no moving parts.
    • Ideally suited for manual operation.
    • Designed to spray wires of diameter 2.0, 2.3, 2.5 & 3.17mm
    • CE compliant.
• 

• MATERIAL	REFERENCE	WIRE DIAMETER	MAXIMUM THROUGHPUT kg/hr	MAXIMUM COVERAGE m2/kg/100 micron
  Zinc	MEC 540	2.0mm/2.3mm/2.5mm/3.17mm	72@700 amp	0.82
  Aluminium	MEC 699	2.0mm/2.3mm/2.5mm/3.17mm	20@700 amp	2.88
  Zn/Al – 85/15	MEC 545	2.0mm/2.3mm/2.5mm/3.17mm	62@700 amp	1.00
  Copper	MEC 599	2 mm	35@700 amp	0.91
  Nickel Aluminium	MEC 884/885	2 mm	38@700 amp	1.09
  Steels	MEC 710/720/730	2 mm	31@700 amp	1.02

• MF-4MB

   

  • The Plasma gun MF4 is a robust , well proven & universal gun to produce high quality plasma coatings upto 55Kw.

• 

• 9MBM

   

  • High powder capability - optimum performance at levels upto 88Kw.
  • High heat output capabilities - Plasma gas temperature upto 16000 Degree Centrigrade
  • High Plasma gas velocity - in access of 3050 m/s.
  • High particle velocity - upto 610 m/s.

• 

• MSG 100

   

  • A 80 kw Plasma Spray gun suitable for a wide range of thermal spray applicaitons.
  • High Spray rates.

• 

• MINI ID GUN

   

  • The Mini Plasma Spray Extension Gun is a versatile production gun designed for internal diameter coating applications.
  • The Mini Plasma Spray gun operates up to 15 kW power in the subsonic mode and is available in two spray angle hardware configrations: 45º and straight-head.
  • It can deposit coatings into diameters as small as 38mm (1.5 in.).

•  

• MASS FLOW "VIEW" AIR PLASMA SPRAY SYSTEM

  MPS-50M/100M Mass Flow “View” Air Plasma Spray System.
  STANDARD PACKAGE :

  • PSC-50/100M Control Planel.
  • JBM Water Jam Box.
  • Powder Feeder: Single PF-3350-A (Optionally Dual Powder Feeder is available).
  • Plasma Spray Gun - Select any as per MPS-50M or MPS-100M system.
  • PS-50 or PS-100 Plasma Power Source.
  • Multi-utility Cart.
  • Full set of input & output cables and hoses.
  • MPS Operator’s Safety Wears.
•  

• The Cold Spray process basically uses the energy stored in high pressure compressed gas to propel fine powder particles at very high velocities (500 - 1500 m/s). Compressed gas is fed via a heating unit to the gun where the gas exits through a specially designed nozzle (level type convergent-divergent nozzle mostly) at very high velocity. Compressed gas is also fed via a high pressure powder feeder to introduce powder material into the high velocity gas jet. The powder particles are accelerated and moderately heated to a certain velocity and temperature where on impact with a substrate they deform and bond to form a coating. As with the other processes a fine balance between particle size, density, temperature and velocity are important criteria to achieve the desired coating.

• Cold spraying Equipment used for application of various metal coatings based on aluminium, copper, zinc, nickel, lead, tin, Babbitt etc. This type of coating used for different purposes, such as:
• • Recovery of the shape and size of parts;
  • Creating electrical contact pads;
  • Elimination of moulding and mechanical defects;
  • The elimination of leaks of liquids and gases (sealing);
  • Corrosion protection;
  • Protection "setting" (EP coating);
  • Prevent sparking;
  • Recovery anti-friction coating of plain bearings;
  • Decoration.

• The main properties of the coatings

• • High adhesion (30-80 MPa);
  • High cohesion (30-80 MPa);
  • Homogeneity of the surface;
  • Low porosity (1-3%);
  • High electrical conductivity between the coating and the substrate;
  • Any coating thickness (20 microns to 10 cm);
  • Roughness of the surface coating is Rz = 20-40;
  • Processing coatings produced by conventional machining methods;
  • Coating may be applied to any metal, glass and ceramics.

  DYMET Cold Spray Equipment Model - 423 (Made in Russia)

   

  The DYMET model 423 is designed for the deposition of aluminium, zinc, copper, nickel, tin, lead metal coatings. It can be operated manually or installed in automated and robotic systems. It is also capable of sand-blasting surfaces.

  Specifications:-

  • Maximum compressed air input pressure 12 bar (170 psi)
  • Compressed air consumption 0.3-0.4 m3/min
  • Compressed air purity free of water and oil
  • Compressed air operating pressure (Inside Spraying Gun DM45) 5 – 8 bar (70-120 psi)
  • Compressed air operating temperature (In the input of the nozzle) 200 – 600 °C
  • Power supply:
    One-phase alternate current of 50±1 Hz and 220 V
  • Maximum power consumption - 3.3 kW
  • Noise level in operation without shielded box not exceed - 75 dB
  • Equipment is designed for use with powder materials manufactured by OCPS.
  • Powder consumption 0,1-0,8 g/sec

•   

  Laser cladding falls into the group of processes commonly known as hard-facing. The laser cladding process is a method of applying a fully dense, metallurgically bonded and virtually pure coating which can be used to increase the wear resistance, corrosion resistance or impact performance of metallic components. In some cases, all three of the properties can be improved. The process utilises a precisely focussed high power laser beam to create a weld pool into which a metallic powder is applied. The powder, which is carried by a stream of inert shielding gas, is blown coaxially through the laser beam. The highly accurate nature of the laser beam allows fully dense cladding with minimal dilution (<5%), yet with a perfect metallurgical bond. Numerous coatings can be applied, the composition of which can be designed to combat the failure mechanisms associated with each component.

   

• • Typical single layer thickness: 0.2 - 2.0mm (multiple layers possible)
  • Heat input to part: low to moderate
  • Dilution with substrate material: variable with parameters but can be <5% gives a very pure coating with the desired coating properties.
  • Adhesion: full metallurgical bond
  • Density: fully dense (<0.1% porosity)
  • Coating materials: WC/Ni alloys, Ni alloys, WC/Co alloys, Stellite 6, Inconel625, FeCrB,

• Benefits Of Laser Clad Coatings

• One of the major benefits associated with laser cladding is the ability to finely control the heat input to the substrate and the coating material. This allows the ability to deposit a two phase Metal Matrix Composite structure. In simple terms, the coating can have a softer, lower melting point material (the matrix) in which a harder wearing, higher melting point material (the hard phase) is suspended.
  The matrix material is typically a nickel based alloy. This matrix provides toughness, ductility, and impact resistance whilst being wear resistant at elevated temperatures.
  A reinforcing hard phase is typically a tungsten carbide but can also be titanium nitride / carbide, chromium carbide etc.
  The fine control of the heat input allows the matrix to be completely melted, alloyed and bonded to the substrate surface, whilst at the same time, the carbide particles remain un-melted and are distributed evenly throughout the matrix. This is demonstrated in the adjacent coating section. This results in an extremely wear and impact resistant coating.

• The following table gives a broad comparison of coating processes. The data shown is based on typical applications and parameters. There can be exceptions to the below data, based on specific applications and parameters.

  	HVOF Thermal Spray	PTA	Laser Cladding
  Heat source	Flame (liquid or gas)	Electric arc	Laser beam
  Coating thickness (typical)	0.05 – 1mm	0.5 – 5mm	0.2 – 2mm
  Typical Deposition rates	≤ 5 kg/hr	≤ 10 kg/hour	≤ 5kg/hr
  Dilution	0	5-15%	≤ 5%
  Type of bonding	Mechanical	Metallurgical	Metallurgical
  Bond strength	≤ 80 MPa	≤ 800 MPa	≤ 800 MPa
  Heat input	Low – medium	High	Low - medium
  Porosity	≤ 1%	< 0.1%	< 0.1%
  Comparative capital cost	Medium	Low	High
  Comparative running cost	High	Medium - Low	Low

• Typical Applications (Coating Materials)

  • Down hole stabilisers (WC/Ni)
  • High temp process rolls, hardness & corrosion resistance, valve lips and seats (Cobalt 6)
  • Valve balls/seats, process rolls, waste incineration boiler parts, oil refinery process plant (NiCrMo)
  • Coal and ore crushing hammers / wear plates / sand valves (WC/Ni)
  • Valve balls/seats, process rolls, boiler components, waste incineration boiler parts, hydraulic rods, down hole stabilisers (FeCrB)

• Part No.	Description
  MET-CLAD HEAD	MET-CLAD laser cladding head

Technical Overview

• Powder feed through conical co-axial ports to maximise precision, quality and efficiency of cladding.
• Laser focus point by simple adjustment in the head.
• Laser / powder feed head easily interchanged.
• Water cooled parts to ensure longevity.
• Optional internal camera to view the weld/clad region during processing.

• MEC offers an environment friendly cabinet type abrasive blasting machine for generating anchor pattern on components that can be handled in a cabinet enclosure and operator maneuver the blasting nozzle from hand holes provided at the front of cabinet. To view the blasting operation, a vision window is provided at front side.

   

  3 variants are available in the cabinet type blasting machines, viz., Suction blasting, Pressure Blasting & Wet Blasting.

   

  Suction Blasting : Works on Injection Suction principle of blasting. Uses the venturi principle to draw abrasive from a non-pressurized hopper to the blast gun where it is combined with the compressed air stream and propelled against the work surface. Suction blast machines are most easily distinguished by having two hoses (one for air and one for abrasive) running to the blast gun.

   

  Pressure Blasting: Works on Direct Pressure principle of blasting. Uses a pressurized vessel or "blast pot" that holds the abrasive media. In a pressure blast machine the air pressure in the vessel and in the "pusher" line is the same. This means that there is no pressure differential between the blast pot and the blast line – this allows the abrasive media to meter into the air stream at the blast pot and then run the length of the blast hose out to the nozzle. Pressure abrasive blast equipment has a single hose running to the blast nozzle.

   

  Wet Blasting: Works on Injection Suction principle of blasting. Uses a slurry pump to draw the wet slurry of very fine abrasive and water to the blast gun where it is combined with the compressed air stream and propelled against the work surface.

• 
• 
• 

• 7-Axis Robotic Shot Peening Machine

  MEC 7-axis Robotic Shot peening machine is designed to peen bucket root & profile blade for steam turbine. To generate the controlled compressive stress to the surface and to enhance the surface properties, increase fatigue strength, enhance lubricity by creating small pores, increase life of components and prevent galling, ferreting, cracking & corrosion. Machine is suitable for peening job of maximum size upto 1500mm.

•  

• SYSTEM FEATURES & BENEFITS

  Standard:

  • 6-axis fanuc robotic gun manipulation
  • Door mounted 3 turntables.
  • Turntable drive synchronized as 7th axis of robot.
  • 3 Jobs can be peened simultaneously
  • Very high production machine
  • Quick clamping/de-clamping pneumatic fixtures
  • Vibratory sieve classifier unit for size classification
  • Spiral type separator for shape classification.
  • Quick change & accurately positioned 4 peening nozzles
  • Colored touch screen HMI & Siemens PLC panel
  • Mechanical grit recovery system
  • Easy part fixture change over
  • Closed loop air pressure regulator
  • Shot flow control magna valve – 4 nos
  • Dual pressure chamber for continuous peening

   

  Optional:

  • Automatic shot peening media adder
  • Rotary lance drive
  • 2nd door with turntable as 8th axis.
  • Custom part holding fixtures

• CNC Ceramic Bead Peening Machine

  MEC 2-axis CNC ceramic peening machine is designed to peen simultaneously 3 – 5 bucket profile blade for gas turbine. To generate the controlled compressive stress to the surface and to enhance the surface properties, increase fatigue strength, enhance lubricity by creating small pores, increase life of components and prevent galling, ferreting, cracking & corrosion. machine is suitable for peening job of maximum size 1000mm [L] x 500mm [w].

•  

• SYSTEM FEATURES & BENEFITS

  Standard:

  • Large work envelope in cabinet
  • Programmable 2-axis servo controlled gun mover
  • Workcar mounted 5 turntables.
  • Workcar extended outside of cabinet for easy loading
  • Turntable speed variable as per peening intensity
  • 5 Jobs can be peened simultaneously
  • Very high production machine
  • Vibratory sieve classifier unit for size classification
  • Quick change & accurate positioned 15 suction blast guns
  • Independent control of blasting guns
  • Colored touch screen HMI & Siemens PLC panel
  • Pneumatic grit recovery system
  • Mechanical grit recovery system
  • Efficient reclaimer with screening
  • Easy part fixture change over
  • Closed loop air pressure regulator

   

  Optional:

  • Automatic shot peening media adder
  • 2nd boor with turntable as 8th axis.
  • Custom part holding fixtures
  • Spiral type shot separator for shape classification

• 8-Axis Robotic Shot Peening Machine

  MEC's 8-axis Robotic Shot/SCCW peening machine is designed to peen bucket root for gas turbine. To generate the controlled compressive stress to the surface and to enhance the surface properties, increase fatigue strength, enhance lubricity by creating small pores, increase life of components and prevent galling, ferreting, cracking & corrosion. Machine is suitable for peening job of maximum size 1000mm [L] & 500mm [W].

•  

• SYSTEM FEATURES & BENEFITS

  Standard:

  • 6-axis ABB robotic gun manipulation
  • Servo indexing table with 2 turntable positioning..
  • 2 Turntables synchronized as 7th& 8th axis of robot
  • One job peening inside the cabinet while other at loading
  • Large work envelope in cabinet
  • Very high production machine
  • Vibratory sieve classifier unit for size classification
  • Quick change & accurate positioned 2 peening nozzles
  • Independent control of blasting guns
  • Colored touch screen HMI & Siemens PLC panel
  • Pneumatic grit recovery system
  • Mechanical grit recovery system
  • Efficient reclaimer with screening
  • Easy part fixture change over
  • Closed loop air pressure regulator
  • Shot flow control magna valve – 4 nos
  • High volume pressure chamber for long duration peening

   

  Optional:

  • Automatic shot peening media adder
  • Rotary lance drive
  • Custom part holding fixtures
  • Spiral type shot separator for shape classification
  • Other media like, nickel granules, SCCW, etc can be used.

• Shot Peening Machine

  MEC automatic glass bead peening machine is designed to peen API threads of drilling components as per MIL-S-13165 standard. To provide two axes shot peening operation for the generation of controlled compressive stress and to improve the galling resistance of the internal & external threads roots on the pipes at both ends. Machine is suitable for peening job of maximum size 12 mtrs [L] &12" Dia.

•  

• SYSTEM FEATURES & BENEFITS

  Standard:

  • Pneumatic operated front door for easy loading
  • Motorized roller arrangement for job rotating
  • 2 Controlled speed gun manipulation for OD & ID peening
  • Quick change OD & ID peening pressure nozzles
  • Large work envelope in cabinet
  • High production machine
  • Offline vibratory sieve classifier unit for size classification
  • Offline spiral type separator for shape classification
  • Gravity feed grit recovery system
  • Easy part pixture change over
  • Work car movement for extended length of job
  • High volume pressure chamber for long duration peening

   

  Optional:

  • Automatic shot peening media adder
  • Rotary lance drive.
  • Shot flow control magna valve
  • Custom part holding fixtures

• Glass Bead Peening Machine

  MEC automatic glass bead peening machine is designed to peen API threads of drilling components as per MIL-S-13165 standard. To provide manual shot peening operation for the generation of controlled compressive stress and to improve the galling resistance of the internal & external threads roots on the pipes at both ends

•  

• SYSTEM FEATURES & BENEFITS

  Standard:

  • Workcar & manual turntable for job loading
  • Quick change OD & ID peening pressure nozzles
  • Gravity feed grit recovery system
  • Easy part fixture change over
  • High volume pressure chamber for long duration peening
  • Shot flow control magna valve

   

  Optional:

  • Automatic shot peening media adder
  • Rotary lance drive
  • Custom part holding fixtures

• MEC Acoustic Chamber

  Thermal spraying process inherently generates noise level above threshold limits; some processes produce following noise levels

  • Arc
    116 dB
    Plasma
    134 dB
    HVOF
    140 dB
    Wire Combustion
    125 dB
    Powder Combustion
    111 dB

   

  Therefore, it is necessary to bring down noise level to permissible limit, apart from collecting over sprayed dust & fumes acoustic cells are designed for both purposes: for reducing noise level as well as to arrest extra sprayed dust & fumes so as to keep clean condition of operation.

   

  MEC has designed modular series of Acoustic chambers with several options.
•  
  Download Catalogue

• MEC Spray Booth

  To carry out thermal spray process on small components for batch or mass level of coating, MEC has a wide variety of spray booths designed to meet customer's requirement. These booths can be opened from front or closed as per job coating operation and process design. Ergonomically designed front portion is very effective for operator to perform coating operation and for suction of over sprayed material & fumes.
• 

• MEC Dust Collector

  During coating operation, fumes & dust generates, which has to be removed immediately and to be collected. MEC provides a solution for effective suction & collection of fumes & dust generated in the vicinity of coating zone. Due to negative pressure generated in the dust collector, the suspended particles & fumes sucked from spray booth/acoustic chamber/room get collected in the dust collector and clean air is discharged into the atmosphere thus maintaining clean & healthy atmosphere. MEC design and manufacture following types of dust collection system
• 

Dry Filter Cartridge

Wet Scrubber

Pleated Bag

Fabric Bag

Cyclone

• MEC Linear Track as 7th Axis for Robot

  To coat on long jobs mounted on a lathe, robot needs to move for accessibility throughout the whole length. MEC provides a linear track on which one 6-axis robot can be mounted on a motorized trolley which can be moved along the length as per the requirement of job length. The robot gives the command to the 7th axis to move according to the pre-programmed menu.
• 

• MEC Horizontal Job Rotator

  To provide rigid and accurate horizontal job rotation arrangement for precise job rotational motion and to get the uniform coating thickness on the entire surface of job, MEC provides a solution for rotational motion. It has one fixed head stock and one tail stock trolley which can be moved along the length as per the requirement of job length. The complete structure is mounted on level adjusting bots and the support brackets can be anchored with floor. The system has special feature of wide range of RPM selection.
• 

• MEC X/XY/XYZ/XYZR Gun Manipulator

  To provide a controlled linear gun traverse unit for the horizontal or vertical or lateral or any combination of movement for spray gun, MEC designs vide variety of gun manipulators for consistent and precise thermal spray coating . The X/X-Y/X-Y-Z/X-Y-Z-R gun traverse provides accurate and repeatable gun motions (To & Fro) via a Rack & Pinion or Ball screw arrangement. Each axis can be programmed for efficient controlled and repeated motion to the gun. The manipulators can be designed in AC variable drives or with servo controlled drives as per job coating requirement to Improve coating quality, to Retain coating uniformity, to Increases productivity, to Better utilization of material, to have Less rejection in coating (Due to even spray) and to Reduce operator's involvement.

   

  The hoses have proper fittings at both sides to connect the control panel & gun distinctly. Initially hoses will be connected to control console and the hoses blown out at low pressure before the gun is connected.