Features
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• Utilize the vacuum force to draw melt into the casting mold at the bottom to form a 6mm Dia. rod.- • Designed for melting samples < 10g iron-based alloy up to 3000 °C under tiny positive pressure
or low vacuum - • Water-cooled SS vacuum chamber, electrode, and copper crucible allows arc melting of multiple
samples without cross-contamination - • Powerful arc melting power supply enables reliable, stable arc ignition
- • Easy electrode tilting and height adjustment via a handwheel
- • A built-in mechanical manipulator for tilting and rotating samples without breaking the vacuum
- • A tinted observation window on the front for monitoring the melting process
    
Casting Module Chamber Door Front Window Flashlight Insert Manipulator
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Vacuum Suction Casting & Copper Crucible
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• Vacuum suction casting 6mm Dia. rod, 30g max. （ 3 - 8 mm casting mold is available upon
request ). Please see the picture 2 for 3 mm x 70 mm rod- • The sucking force is generated by evacuating the bottom cold copper casting mold. This results
in rapid solidification of the melt which is ideal for reducing the shrinkage cavity defects - • One solenoid valve is built-in for sucking operation
- • The water-cooled copper crucible has 7 cavities:
- • Central cavity (35mm dia. x 10mm depth) is for vacuum suction casting
- • The other six-round cavities (25 mm Dia. × 8 mm depth) are reserved for metal alloy pellet
preparation, max. 10g
- • Optional: You may modify crucible in 70 mm Dia. to melt and casting max.100 g ( Fe based
alloy)
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- pic 1 pic 2 pic 3
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Vacuum Pressure Gauge | |
Power Supply
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• Input voltage: 110 or 220 VAC selectable, single phase- • Input current: 34A max. (One 40A breaker is installed in the power supply. Recommended wall
breaker amp ≥ 40A) - • Output DC output: 15 V / 125 A at 35% duty cycle - 110 V input , 18 V / 185 A at 35% duty
cycle - 220 V input - • Minimum DC current output: 5 A
- • Pulse DC and AC output modes available
- • Foot pedal control of the output current
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Tungsten Electrode
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• 4 mm Dia. tungsten electrode with water cooling, Non-consumable tungsten arc stinger- • Easy electrode tilting and height adjustment (30 mm max) for multiple-cavity melting
- • Capable of melting samples < 10g up to 3000 °C, which can melt all types of metals
- • Pic.A is a 4.5 g tungsten melt drop
- • Pic.B is a 10 g tungsten melt drop
 A.4.5 g 
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Option at extra cost |
• If choose larger copper crucible with 55 Dia x 10D （mm) as the pic below (Pic.1-3),
with modified electrode tip， 300A power supply, the furnace can melt and cast 50 g SS304.
Please contact MTI to request a quote.- • The furnace can be used for sealing Ta or any alloy tube by optional rotation module as the
Pic below (Pic.4-7)
 Pic.1  Pic.2  Pic.3  Pic.4
 Pic.5  Pic.6  Gif.7
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Vacuum Chamber
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• Water-cooled vacuum chamber with dimensions of Φ 182 mm × 225 mm H- • A Φ120mm front door for easy sample loading and retrieving
- • A tinted observation window on the front for monitoring the melting process
- • A built-in mechanical manipulator for tilting and rotating samples without breaking the vacuum
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Vacuum Pump (Optional)
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• The vacuum level is dependent on the vacuum pump used:
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Water Chiller & Gas (Optional)
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• Water cooling is required (not included) for the chamber, copper mold, and electrode.
Please consider our KJ-5000 recirculating water chiller.
- • Water-tube for MTI Water Chiller is Size: 12mm O.D x 8mm I.D
- • High purity inert gas with at least 5N purity (>99.999%) is required (not included)
- • 5% Hydrogen + 95% Argon gas may be used to prevent oxidation during the melting process
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Furnace Dimensions
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• 540 mm W × 540 mm D × 920 mm H (exclude the power supply) - • Power supply dimension: 320 mm L x 185 mm W x 485 mm H
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Chamber Dimensions
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•  Φ182 mm × 225 mm
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| Net Weight | |
Shipping Weight & Dimensions |
• 500 lbs- • 48" x 40" x 52"
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| Compliance |
• CE certified- • NRTL or CSA certification is available at an extra fee. Please contact us for the quote.
    
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| Warranty | - • One-year limited warranty with lifetime support
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Operation Manual & Video |
 
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Related Article | |
Application & Warning Notes
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• High purity 》4N Ar gas is required for the smelting operation. - • A two-stage pressure regulator must be installed on the gas cylinder to limit the pressure to
below 3 psi for safe operation. Click here to learn the installation of a gas regulator (Pic.1) - • To avoid any damages to the mechanical pump or turbopump, please install an Inline Particle
Trap (maximum 1E-4 Torr vacuum with turbopump) on the pump inlet port (Pic. 2) - • Must Wear Welder Glass or Auto Welding Shade while observing the Arc while welding.
- • An example of the system setup with a turbopump can be on the left
- • The unit is designed for arc melting operation under tiny positive pressure or low vacuum
(0.01 – 0.11 MPa pressure, or positive 0.01 MPa to negative 0.09 MPa pressure).
Never operate the unit at high vacuum or high positive pressure! - • During melting operation, never allow the electrode to touch the material or the copper crucible!
Do not operate the mechanical manipulator during the melting process. - • Option: The user may use a quartz tube shielding to effectively reduce the splash and spilling
while arc melting. Please click pic 3 to watch the demo video.
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