Metal Melting Furnaces

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Saunders Foundry Supply has been a distributor of MIFCO Metal Melting Furnaces for more than 30 years. Contact Saunders today and we’ll help you select the metal melting furnace you need and get you the best price available!

B-Series Melters
MIFCO manufactures some of the most versatile Melting Furnaces available. The wide temperature range will allow the melting of most non-ferrous metals used in casting and some grey iron up to class 30 or 35. All of these units have a temperature range of 1200° to 2400° F and are designed to melt as rapidly as possible. In the school shop or industrial foundry, these units have an immediate and profitable application. They cover nearly the entire range of modern melting needs. The initial investment for this type of industrial equipment is nominal and the maintenance is held to an absolute minimum due to the rugged construction and high quality of the furnace lining.

B-Series General Specifications

FLEXIBILITY, VERSATILITY and ECONOMY:

MIFCO manufactures some of the most versatile melting furnaces available. The wide temperature range will allow the melting of most non-ferrous metals used in casting and some grey iron up to class 30 or 35. All of these units have a temperature range of 1200° to 2400° F and are designed to melt as rapidly as possible. In the school shop or industrial foundry, these units have an immediate and profitable application. They cover nearly the entire range of modern melting needs. The initial investment for this type of industrial equipment is nominal and the maintenance is held to an absolute minimum due to the rugged construction and high quality of the furnace lining.

RUGGED, WELDED STEEL CONSTRUCTION:

The outer shells of MIFCO furnaces are heavy gauge steel, reinforced where necessary, with rolled steel bars and welded throughout. The rugged construction conforms to the highest industrial standards. The lid support rings are also constructed of heavy gauge rolled steel bars. The furnace lids are recessed in sectional cast chrome-iron protection plates. The lid derrick is simple in design and sturdily constructed with a detachable handle to prevent overheating. Structural steel legs provide air circulation beneath the unit to prevent overheating of the foundry floor. The low operating height provides greater convenience for charging of the crucible. Each unit is provided with an overflow and drain hole in the base of the furnace.

SECTIONAL REFRACTORY LINING:

Super-duty, high alumina, hand-made, air rammed and pre-fired refractory shapes are used in the lining and dome shaped lids of all MIFCO High Speed Melters. The rapid melting schedules and capacity to melt grey iron make it mandatory that we use the best refractory material available to insure long life of the furnace lining. Super-duty high alumina can withstand the drastic temperature changes due to rapid heating and can operate at temperatures in excess of 3000° F without spalling or deterioration. Sectional linings facilitate movement during heating to prevent thermal cracking and deterioration of the lining and lid. Field replacement of the linings and lids is rapid and easy. Refractory relining kits are available for all MIFCO furnaces.

HIGH TEMPERATURE INSULATION:

High temperature castable insulation between the steel shell and the combustion chamber lining combine high strength and excellent insulating properties. This provides faster heating, lower heat loss and greater burner efficiency.

BURNER SYSTEM:

The MIFCO gas-air mixer will utilize any type of fuel gas - natural, bottled or tank. The venturi design of the aspirator mixer develops a slight suction against the main gas line, eliminating the need for check valves. The standard mixer system is a manual two-valve control which permits the operator to set any type of flame or atmospheric characteristics desired. Both the gas and air valves are conveniently located. The type of fuel gas can be changed as desired without having to change an orifice or jet on the mixer. Each furnace is shipped complete with a blower. It is only necessary to make gas and electrical connections and the furnace is ready to operate.

COMBUSTION SAFEGUARD SYSTEM:

Combustion safeguard systems are standard equipment on all MIFCO furnaces. The burner control is an industrial type, electronic unit activated by a flame sensor that detects the ultra-violet spectrum of the burner flame. Response to a flame failure of any kind is within 2 to 4 seconds and flame monitoring is continuous. The burner system is ignited by a timed electronic spark. In the event of a flame failure, reset of the burner control is manual.

DIMENSIONS AND SPECIFICATIONS OF SPEEDY MELT HIGH SPEED MELTERS

FURNACE MODEL

CRUCIBLE SIZE

CAPACITY PER MELT- BRASS/ ALUMINUM

COMBUSTION CHAMBER DIMENSIONS DIA DEEP

A

B

C

FLOOR SPACE D E

BLOWER AND MOTOR RATING

BTU GAS RATING

GAS LINE SIZE

GAS VALVE SIZE

APPROX. SHIPPING WEIGHT

B-160

No. 10 thru No. 16

48 lbs./ 16 lbs.

10" 12"

19-1/2"

30-1/2"

20"

22-1/2" 56"

90CFM 1/2 HP

425,000

1-1/4"

3/4"

550 lbs.

B-301

No. 20 thru No. 30

90 lbs./ 30 lbs.

13" 15-1/2"

21"

36"

23"

27-1/2" 76"

150CFM 1 HP

750,000

1-1/2"

1"

915 lbs.

B-702

No. 40 thru No. 70

210 lbs./ 70 lbs.

17" 20"

23"

42"

30"

34" 80"

210CFM 2 HP

900,000

2"

1-1/4"

1,575 lbs.

B-1501

No. 80 thru No. 150

450 lbs./ 150 lbs.

21" 24"

35"

51"

38"

42" 83"

230CFM 2 HP

1,200,000

2"

1-1/4"

2,666 lbs.

B2001

No. 90 thru No. 225

675lbs 225lbs

23" 25"

36"

53"

63"

72" - 108"

230CFM 2 HP

1,200,000

2"

1-1/4"

3,000 lbs.

*Crucible size designates capacity of pounds of aluminum per melt.
Above furnaces are furnished with 110/220 volt, single phase or 220/440 volt, three phase

Flat Hearth Slot Forges
A modern designed forge, offered in 4 sizes to meet the requirements of the General Shop, Vocational and Agricultural School Shops or Blacksmith, Industrial, and Farm Maintenance Shops. The Flat Hearth Slot Forge is particularly adapted for tool dressing and sharpening, general forging, bending, and welding operations. Work is always visible to the operator, thus preventing burning and wasting of materials.

A modern designed forge, offered in 3 sizes to meet the requirements of the General Shop, Vocational and Agricultural School Shops, or, Blacksmith, Industrial, and Farm Maintenance Shops. The Flat Hearth Slot Forge is particularly adapted for tool dressing and sharpening, general forging, bending, and welding operations. Work is always visible to the operator, thus preventing burning and wasting of materials.

The forge is constructed of heavy gauge steel, structurally reinforced and electric welded. The reflector baffle is made of steel angle and bar to resist sagging and bending. The reflector elevating screw provides easy, positive adjustment. Like all Speedy Forge Furnaces, the complete firebox and hearth area is lined with High Alumina Fire Brick to give extra service life. High temperature castable insulation between the fire brick and the furnace shell provides faster heating, greater fuel efficiency, and simplifies the relining of the furnace. The reflector baffle lining is composed of standard 9 in. and 13 in. insulating fire bricks. An adjustable work support rack is also standard equipment.

The Gas/Air Mixer operates efficiently with either natural or propane fuel. The standard mixer is a two valve, manual control type which permits the operator to adjust the flame to any characteristics desired. Combustion Safeguard Systems with spark ignition and continual flame monitoring are standard equipment on all forging furnaces.

FLAT HEARTH SLOT FORGES SPECIFICATIONS
MODEL	FIREBOX OPENING	HEARTH SIZE Width X length	REFLECTOR BAFFLE Width X length	WORKING HEIGHT	FLOOR SPACE	BLOWER RATING	MOTOR RATING 110V	GAS INPUT BTU/HR	GAS SERVICE LINE	GAS CONNECT	APPROX. SHIPPING WEIGHT
F-512	5"X7"X13'	18"X22"	9"X22"	32"	28"X38"	60 CFM	1/2 HP 3450 RPM	200,000	1 1/4	3/4"	390 lbs
F-526	5"X7"X26"	18"X42"	9"X36"	32"	28"X50"	110 CFM	1/2 HP 3450 RPM	450,000	1 1/2	1"	850 lbs
F-826	8"X7"X26"	18"X42"	13"X36"	32"	28"X50"	110 CFM	1/2 HP 3450 RPM	450,000	1 1/2	1"	850 lbs
4 to 6 oz. gas pressure or 6" to 9" WC

Safety Tongs
Saunders Foundry also supplies MIFCO safety tongs, which are designed and manufactured according to the recommendations of the Crucible Manufacturers Association. Safety tongs available for crucible sizes ranging from #10 up to #1000.

Plain Crucible Tongs

With lifting eye bolt (40P and larger) and locking latch bar.
All tongs are sized to fit bilge crucibles.

All tongs are designed to allow room to set the crucible into the
furnace chamber and withdraw it for pouring.

Bent Handle Crucible Tongs

Bent Handle Crucible Tongs, Size 40 and larger, will have links and ring as well as bent handles for two man handling. Handle bent 90°, rings furnished to engage hoist. Eye bolts also furnished on Size 40 Bent Handle Tongs and Larger.

*Cannot use with a T-80 Furnace.
All tongs are designed to fit bilge crucibles.

Digital Hand Lance Pyrometer
Quality and reliability so evident in MIFCO products for over 50 years built into the MD-250 Digital Hand Lance Pyrometer. This pyrometer has a rugged solid state instrument with 3/8" high numbers mounted in a rugged, aluminum housing. The easily replaceable tip can be ordered or replaced with 12" or 15" thermocouples. The instrument also has open thermocouple indication to let you know if the thermocouple tip needs replacing. For consistent quality castings you should have a user friendly MD-250 Digital Pyrometer in your foundry.