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ELIMINATE CASTING REJECTS, DRASTICALLY REDUCE FINISHING TIME, IMPROVE QUALITY AND INCREASE YOUR PRODUCTION OUTPUT WITH THE PROVEN

INDUCTO-VAC® 4KW CASTING SYSTEM

Memco's Inducto-Vac 4kw

THE PERFORMANCE STANDARD
 
The Memco Inducto-Vac Casting System provides precision control of the investment casting process along with high production of perfect casting at a much lower initial cost and much lower operating expenses than any other induction casting machine.

Improve quality and eliminate rejects through precision control of temperature and many process variables.

Reduce finishing time because castings have better definition of contours and detail and better polishing properties than centrifugal castings.

Lower operating costs due to the inherent long life and high efficiency of the solid state heating unit, the very high thermal efficiency of new materials, and the longer life of the refractories.		 Increase production because casting is instantaneous - no waiting on a centrifuge, crucible is stationary, insulated and not cooled by spinning.  Less heating is required, melting is faster and less energy is used.

All these benefits and more are possible with the Memco Inducto-Vac because of the creative technology incorporated into this compact unit.

Induction casting equipment is an investment that will quickly pay for itself in improved, consistent quality and increased production.  If you have quality problems and are planning to increase production, investigate other equipment, then come to Memco.  We build quality and top performance into all our products and we like comparisons with our competitors.
 
Memco Genuine Crucible PERFECT CASTINGS

Ceramic Crucibles
Memco has used bottom pour ceramic crucibles in our machines for over 25 years.  The unique Memco ceramic crucible offers many advantages over common casting crucibles, all of which can help you make more profit.
 
  • Completely inert to prevent chemical interaction and contamination of the molten metal.
  • Durable ceramic crucibles have a much longer life than carbon crucibles because they do not oxidize, or crumble and fall into the flask.
  • Bottom pour arrangement helps insure that clean metal enters the flask.  Residue is floated away.
  • Bottom pour arrangement assures maximum operator safety in pouring molten metal due to the short distance from crucible to flask.
  • The precision pour hole design does not enlarge or change shape with age.  This feature carefully controls the pour rate to minimize turbulence and reduce defects in the casting.
  • Electrically transparent ceramic allows metal to be constantly stirred by induction currents.
 
FLEXIBLE FLASK OPTIONS
Memco 11 gauge Stainless Steel Flasks
  • No need to retool your shop and your casting process to accommodate this machine.
    Perforated Flask
  • Excellent form filling of even the most challenging designs is achieved in larger flasks without special techniques.
  • Our flask chamber accommodates most popular sizes of perforated flasks up to 5" Ø x 9" H.
  • The precision design of the flask chamber and gasket engineering provide superior sealing and vacuum.
    Standard Flask (non perforated)
  • The Electro-Vac can be fitted with optional flask adapters to enable you to use your current non perforated flasks.
    Ingots
  • Strip and wire ingots can also be easily poured using standard molds.
Accurate Metal Temperature

Accurate, reliable casting temperature is very important to the process.  Some alloys can tolerate only a few degrees error.  Memco uses an immersion thermocouple in the bottom of the valve rod to directly measure the temperature.  This bottom location gives accurate measurement regardless of the amount of metal.

Memco makes this pyrometer specifically for use in the Inducto-Vac.  Other casting machines use common commercial units not designed for induction fields which results in serious errors.

A horn alerts the operator to have the flask ready to receive metal as it approaches the pre-selected casting temperature.
 
Vacuum Casting

This is the ONLY way to provide a uniform force on all metal surfaces.  The vacuum eliminates all gases and insures proper filling of the flask.  Vacuum castings are free from voids, surface roughness and distortion common to the unidirectional force of a centrifuge.
 
Gas System

Automatic gas control system assures the melt is protected at all times.  Reducing gas will remove oxides from the molten metal as it is stirred by the low frequency currents.  Gas system is not pressurized thereby eliminating the gas tight melting chamber and attendent problems.

Heating Unit
A solid state generator provides excellent reliability and long life contrasted to the short lived, expensive vacuum tubes.  Indirect heating of the unique ceramic crucible/susceptor arrangement eliminates burning the metal.  The powerful, low frequency currents stir the metal to ensure a homogenous alloy and assist in removing oxides trapped in the metal. 		Inducto-Vac Thermocouple/Valve Rod Lifter Assembly
 
SUMMARY
This synergistic combination of features of the Inducto-Vac provides far better results than the individual features themselves.  Once you have perfect castings, you will find far less finishing is required.  This reduction in finishing results in more retention of fine detail, more metal weight and lower labor cost.  In addition, this system is smaller, faster and far safer than ordinary casting equipment.

SPECIFICATIONS
MEASUREMENTS
Table Top:  23" H x 34" W x 17½" D (58.5 cm H x 86 cm W x 44.5 cm D)
Floor:         50" H x 34" W x 17½" D (127 cm H x 86 cm W x 44.5 cm D)

NET WEIGHTS
Table Top:  181 lbs. (83 kgs.)
Floor:         250 lbs. (113 kgs.)

POWER OUTPUT
Operator variable 1 to 4 KW

POWER REQUIREMENTS
Domestic (USA):  120/240V, 23A, 60Hz, 1Ø
International:       230V, 23A, 50Hz, 1Ø
(Equiped with 5ft. power cord & plug NEMA 10-30P)

MAXIMUM CASTING TEMPERATURE
Medium Temperature - 1250º C
High Temperature - 1700º C

CRUCIBLE - (Long Life, Ceramic, Bottom Pour)
Volumetric Capacity - 13.2 cu in, 218 cc
Molten Fine Gold - 136 tr oz, 4.27 Kg, 2736 dwt
Molten Sterling Silver - 75 tr oz, 2.32 Kg, 1494 dwt
(Graphite crucibles also available for casting brass)

FLASKS
Perforated for use with adapter rings in vacuum chamber - Maximum Height is 9 in.
Adapters furnished for 3½", 4" & 5" diameters.

VACUUM PUMP
5 cfm, 29" Hg at sea level
(other specifications are available upon request)

PROTECTIVE GAS
Forming (Hydrogen/Nitrogen Mix)
Flowmeter:  0 - 20 cfh (0 - 10 lpm)

COOLING OPTIONS
Internal electric water valve for unattended cool down
Single Pass:  Requires 1 gpm @ 35 psi (4 lpm @ 2.5 bar) minimum
Recirculating:  Power outlet furnished on unit for automatic operation.
(External recirculating system available as an option).

TEMPERATURE CONTROL
Sensor:  Immersion Thermocouple
Accuracy:  3º C
Resolution:  1º C

WARRANTY
THREE YEARS on all machine parts
This warranty excludes refractory items.


NOTE: All options should be specified when ordering.