Features  | - 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 |
Vacuum Chamber
 | - 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
- Material: Made of SS304 Steel
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| Vacuum Suction Casting & Copper Crucible | - Vacuum suction casting 6mm Dia. rod, 30g max. （3 - 8 mm casting mold is available upon request). Please see 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:
- The central cavity (50mm dia. x 10mm depth) is for vacuum suction casting
- The other six-round cavities (20 mm Dia. × 8 mm depth) are reserved for metal alloy pellet preparation, max. 10g
- Note: The Copper Mold has been upgraded to the above dimensions since 08/2021 (pic.1 & 2).
- Optional: You may modify crucible in 70 mm Dia. to melt and casting max.100 g ( Fe based alloy)
 pic.1  pic.2  pic 3 |
| Vacuum Pressure Gauge | |
| Vacuum Pump (Optional) | - The vacuum level is dependent on the vacuum pump used:
- 10^-3 torr via a mechanical/roughing pump. (Roughing Pumps)
- 10^-5 torr via a turbopump.
- Using a gas purification system ca keep oxygen < 1 ppm, which is equal to 10-6 torr vacuum
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Power Supply
 | - 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  | - 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  |
| Option at extra cost | - If you choose a larger copper crucible with 55 Dia x 10D （mm) as the pic below (Pic.1-3), with a 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 Pic.7 |
Water Chiller & Gas (Optional)
 | - 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 | - 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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| Net Weight | |
| Shipping Weight & Dimensions | |
| 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 Video | 
 
Older Version New Version |
| Related Article | |
| Application & Warning Notes | - High purity 》5N 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.
- The unit is designed for arc melting operation under positive 0.01 MPa to negative 0.09 MPa pressure). Never operate the unit at a 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.
 1  2  3
- Note: Since July 20, 2020 , cavity size is changed into 20 mm dia, and casting mold is changed to place from top
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A.4.5 g 
