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Compact Vacuum Arc Melting System with Large Cavity up to 200 g (Fe) - EQ-SP-MSM200
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EQ-SP-MSM200 is a compact vacuum arc melting furnace with single water-cooled copper crucibles to melt steel samples up to 200g. A built-in mechanical manipulator is included for tilting and rotating metal ingots for the re-melting process.
SPECIFICATIONS:
Features
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- Designed for melting single samples of 200g (iron-based alloy) up to 3500 °C under Ar gas.
- Water-cooled vacuum chamber, electrode, and copper hearth with one larger cavity ( round or rectangular ) and several small cavities.
- Powerful arc melting power supply (25KW) 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
 Chamber Door  Front Window  Flashlight Insert  Manipulator
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| Vacuum Pressure Gauge |
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| Power Supply |
- Input voltage: 208 - 240 VAC, Three-phase, 50/60Hz, 25KW ( 25KW transformer included )
- 380VAC, 3phase is available upon request.
- Input current: 70 A max.
- Output DC output: 34VDC, 600A Max.
- The pulse output function is included for easy arcing without touch sample
- 350A power supply with 220V, single-phase, and URTL certified is available upon request at the extra cost
 
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Tungsten Electrode
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- 6 mm Dia. tungsten electrode with water cooling
- Easy electrode tilting and height adjustment (30 mm max) for multiple-cavity melting
- Capable of melting samples < 200 g iron-based alloy in each cavity up to 3500 °C.
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Copper Crucible
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- Water-cooled copper crucible plate with one large capacity with several small cavities (Pic. 1). Please select cavity shape before ordering as follows:
- Round cavity: 70 mm diameter x 15 mm Depth
- Rectangular cavity: 200 mm L x 40mm W x 15 mm Depth
- Three 25mm dia. small cavities are for melting Ti to remove oxygen inside the chamber before processing, or small samples for < 20 g
- In order to melt the alloy uniformly, double side melting is required
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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 & Gas purification (Optional)
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- The vacuum level is dependent on the vacuum pump (not included, please order separately)
- 10^-3 torr via a mechanical/roughing pump. (Roughing Pumps) (Pic. 1)
- 10^-5 torr via a turbopump. (Pic. 2)
- You may use a recirculating gas purification system to keep gas purity inside the chamber < 1 ppm O2 and H2O without turbopump. ( Pic. 3)
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 Pic. 1  Pic. 2  Pic,3  Pic. 4
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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-5300 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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| Net Weight |
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Compliance
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- CE certified
- UL/CSA certification by NRTLs is available at an extra cost
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| Warranty |
- One-year limited warranty with lifetime support
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| Operation Manual & Video |
 200g sample video  small cavity melting video
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Application & Warning Notes
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- 5N purity Ar gas is required for arc melting. A gas purification module is recommended to ensure gas purity. (click Pic.1 to order)
- 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.2)
- 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. 3)
- 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.
 Pic.1  Pic.2  Pic.3
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