100 to 140 lb. capacity Ideal for mulling single bag facing sand or cold-set core sand Ideal for vocational or technical schools and smaller foundry applications   ML-125 Specifications: Nominal Capacity - 125 to 150 lbs. per batch (56.7-68.0 Kg.) (Capacity varies with type of sand being mulled.) Crib Diameter - 29 inches (.73 M) Overall Height - 47 inches (1.19 M) Crib Height - 44 inches (1.12 M) Base Height - 26 inches (.66 M) Chute Height - 21 inches (.53 M) Floor Space - 36 inches square (23 cm.) Muller Wheels - 14 in. diameter x 2 in. face (35.5 x 5.08 cm) Plows - Dual - abrasion resistant steel, hard faced. Drive - Gear reduction, oil-tight gear case, directly connected to NEMA "C" flange motor. Bearings - Sealed ball bearings throughout. Motor - 2 HP, single or poly phase, 60 hz, 1750 RPM ball bearing, totally enclosed, fan cooled, "C" flange motor with overload protection. Cover - Heavy spun steel with gasket seal plus lid interlock safety switch. HoodOPEN/PowerOFF Shipping Weight - Approx. 450 lbs. (204 Kg.)

MODEL ML-65

50 to 65 lb. capacity Sized right for laboratory use Ideal for industrial arts applications   ML-65 Specifications: Nominal Capacity - 55 to 75 lbs. per batch (24.9 - 34.0 Kg.) (Capacity varies with type of sand being mulled.) Crib Diameter - 24 inches (.61 M) Overall Height - 44 inches (1.12 M) Crib Height - 40 inches (1.02 M) Base Height - 25 inches (.63 M) Chute Height - 18 inches (.45 M) Floor Space - 30 inches square (19.2 cm) Muller Wheels - 12 in. diameter x 2 in. face (30.5 x 5.08 cm) Plows - Dual - abrasion resistant steel, hard faced. Drive - Gear reduction, oil-tight gear case, directly connected to NEMA "C" flange motor. Bearings - Sealed ball bearings throughout. Motor - 1 HP, single or poly phase, 60 hz, 1750 RPM ball bearing, totally enclosed, fan cooled, "C" flange motor with overload protection. Cover - Heavy spun steel with gasket seal plus lid interlock safety switch. Hood OPEN / Power OFF Shipping Weight - 250 lbs. (113.4 Kg.)

 

SWIF-MUL

ENGINEERED FOR TRUE MULLING ACTION
AND MINIMAL MAINTENANCE EXPENSE

Like other sand handling equipment, sand mulling machinery is usually considered self-destructive. Swif-Mul solves this maintenance problem while delivering completely mulled sand. Those muller components subject to excessive wear can be easily replaced during routine maintenance. Because of this innovative concept, downtime is reduced to a minimum, and high output is maintained for a greater return on the dollars invested. All of this is packaged in a muller that is simple in design, ruggedly built, economically priced, and that delivers high efficiency performance.

SWIF-MUL is Designed for More Efficient Mulling Action

Casting defects are generally caused by poor sand properties. These defects are greatly reduced when molding sands are mulled correctly. A true mulling action requires each grain of sand to be evenly coated with clay and binders.

Swif-Mul Mullers are engineered to supply the action and to supply it regularly. The Swif-Mul mulling action "squeezes" or "kneads" the mass of sand and clay between the mullers and the base. An adjustable spring keeps the correct amount of pressure on the mullers.

As the mullers revolve they cause a "smearing" action that rolls the grains of sand into the clay. To insure thorough mixing, sand plows aerate and continuously churn the entire batch, blending the oil or water uniformly throughout the sand. The result is a well-bonded "envelope" for each sand grain, and excellent adhesion between the coated grains.

SWIF-MUL Reduces Material Costs

Mulling ends the wasteful practice of discarding molding sands considered expendable or irreclaimable. With the addition of small amounts of new binders, catalyst, and oil to oil bonded sand, or the addition of small amounts of new binders and water to water bonded sand, a five or six minute re-mull cycle can renovate sand for further casting use.

In re-mulled sand, as in freshly mulled sand, the correct moisture content to prevent casting defects, and the correct oil content to minimize smoke and fume emissions can be achieved. These are moneysaving benefits - added to the impressive savings in materials which results from the simple practice of re-mulling molding sand.

 

Compare These SWIF-MUL Features
with Other Mix Mullers

Reduced Weight Means Reduced Wear

In any machine, bearing wear and maintenance are directly related to the weight of its moving parts. Swif-Mul has engineered in durability by reducing weight. The light weight aluminum alloy cross head carriage assembly and the light weight muller wheels cause less strain and wear on bearings and gear train.

Adjustable Muller Pressure

The muller pressure can be changed by adjusting the flat tension spring to apply a precise amount of pressure for each specific mulling application. Clearance between the muller wheel and base plate can be adjusted to handle various grades of sand with utmost efficiency.

Protected Pivot and Bearings

The double ball bearings in each muller wheel are totally sheilded and permanently lubricated. Quadruple-lip grease and dirt seals protect both the axle shaft and the muller bearings to provide maximum bearing life. The pivot joints are enclosed by oil resistant, bellow-type dust covers, giving the wheel joints and moving parts complete protection from the abrasive action of the sand. Multiple-lip sand seals located inside the vertical drive shaft housing, prevent sand from entering the drive shaft and cross head castings.

Adjustable Sand Plows

Fully adjustable inner and outer sand plows are designed to give maximum mixing action. All plows are hard surfaced along the leading edge with a tungsten carbide layer applied by the oxy-acetylene process. Abrasion resistant steel plows are optional with the smaller models ML-65 and ML-125, but are standard equipment for model ML-250.

Removable Crib

Removing the crib provides access to working parts and makes it possible to give the muller the kind of total clean up that keeps its mulling efficiency high, and wear and tear at a minimum. The operation is as simple as removing four bolts, then lifting the crib from the base.

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Discharge Door Operates with One Hand

Opening the bottom discharge door is an easy one-hand operation. The plow action makes discharge automatic and makes the muller practically self-cleaning. Discharge requires about ten seconds. During the mulling cycle, an "O" ring seal prevents leakage, and a simple cam lock "locks" the door. The door is adjustable to compensate for normal wear.

 

SWIF-MUL

MODEL PM-250
Portable Muller

The Swif-Mul PM 250 moves the convenience of portability right into your foundry operation yet is able to deliver the same efficient, heavy-duty service you expect from a stationary muller.

Portability and profits can move hand-in-hand. Many companies have found that the increased convenience of wheeling the muller from job site to job site, has been the difference between profitable jobs and losers. And there can be more numbers in the profit column because the efficiency of a full-scale operation does not have to be sacrificed for portability - the PM 250 has a big 200-275 pound capacity.

lt also has heavy-duty engineering. This means performance you can count on and the increased efficiency and profits which go along with dependability.

The Swif-Mul PM 250 puts many fine features on wheels

• Sealed, anti-friction ball or roller bearings throughout.
• Abrasion resistant steel plows, faced at wear points with a smooth layer of tungsten carbide which is applied by oxyacetylene torch.
• Abrasion resistant, hardened steel crib and base liners for extra life. Eight gauge thickness is standard. Three-eighths inch plate is optional.
• Radius edge steel muller wheels are standard. Tungsten carbide faced mullers are optional.
• Oil level sight glass on speed reducer and centrally located alemite fittings for gear box, simplify lubrication and maintenance.
• Retractable handles for added maneuverability.
• Convenient chute height means convenient unloading wheelbarrow can be rolled directly underneath.
• Rolls to the job on 5.75 x 14 inch industrial type pneumatic tires.
• Shipped fully assembled and ready to go to work.

 

SWIF-MUL PORTO-UNIT

PM-125 Porto Unit

Wheel convenience right into your small foundry operation with the new Swif-Mul Porto-Unit. It is a heavyduty cart designed specifically to convert your ML 65 Swif-Mul or your ML-125 Swif-Mul into a portable muller. Conversion is a five minute job - remove eight bolts from the muller legs, exchange the legs for the Porto-Unit, and replace the bolts. Then you can wheel your muller to the job site. It's simpler than moving your job site to the muller.

It is constructed for durability with standard Schedule 40 black iron pipe. The Porto-Unit wheels for the ML-65 are fitted with eight inch, oil resistant rubber tires. The Porto-Unit wheels for the heavier ML-125 are fitted with ten inch, oil resistant rubber tires

OPTIONAL POWER CABLE FOR CONVERTED MULLERS

Twenty-five feet of three or four conductor 600 volt rubber covered cable, with two male plugs and a female receptacle mounted in the NEMA control enclosure is available as optional equipment.

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MODEL PM-125 with PORTO-UNIT
and Mul-Cycle Control Installed