SP-MSM207 is a compact vacuum arc melting furnace with a non-consumable tungsten electrode and water-cooled copper crucibles. A built-in mechanical manipulator is included for tilting and rotating metal ingots for the re-melting process. A vacuum casting faction fixture can be added as optional. It is an excellent tool for smelting metal alloys for phase diagram research.
Note: Upgrade Max current to 250A, since July 15, 2023
SPECIFICATIONS:
Features
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- Designed for melting samples < 10g iron-based alloy up to 3000 °C under tiny positive pressure or low vacuum
- A water-cooled 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 the melting process
Chamber Door Front Window Flashlight Insert Manipulator |
| Vacuum Pressure Gauge |
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Power Supply
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- 7000W (250A) arc melting power supply with ETL Listed
- 208-240VAC, 1 and 3 ph, 50/60Hz.
@240V 1 Ph: 32A (50A breaker) @240V 3 Ph: 16A (30A breaker)
- Output DC output duty cycle:
- Minimum DC current output: 10 A
- 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
- Easy electrode tilting and height adjustment (30 mm max) for multiple-cavity melting
- Capable of melting samples < 10 g iron-based alloy in each cavity up to 3000 °C.
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Copper Crucible
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- Water-cooled copper crucible plate with 7 cavities of 25 mm Dia. × 8 mm depth (2 ml) (Fig. 1)
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The customizable copper crucible is available upon request at extra cost (Pic 2 ).
- A larger arc melter, MSM200 is also available for Fe < 300 g
- A vacuum casting module, MSM208 is also available (Fig. 4).
 Fig1  Fig. 2
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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 wobble stick for sample flipping.
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Vacuum Pump (Optional)
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- 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.
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Water Chiller & Gas (Optional)
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- Water cooling is required (not included) for the copper hearth and electrodes.
Please consider our KJ-5000 recirculating water chiller.
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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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| Compliance |
- CE certified
- UL/CSA certification by NRTLs is available at an extra fee.
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| Related Article |
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Application & Warning Notes
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- 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 about the installation of a gas regulator (Pic.1)
- To avoid any damage 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 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 pressure!
- During the arc 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 quartz tube shielding to effectively reduce the splash and spilling while arc melting.
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Fig1 
Fig. 2
B.10 g 
