Muller Main Body
All internal machine components are constructed of #304 (EN 1.4301) stainless steel. The interior surfaces of the mixing pan will be machined smooth to close tolerances. All nuts, bolts, and grease fittings on the interior of the mixer are held in place by wire-locking.
Intensive mixing is accomplished by a mixing tool set, rotating counter clock-wise, consisting of two (2x) cast stainless steel mulling wheels vertically mounted 180 degrees apart on suspension rocker arms and two (2x) mixing plows mounted on a crosshead. Crosshead consists of a one-piece, streamlined crosshead casting to prevent material build-up. The inside and outside plow straps are of one piece construction with vertical and horizontal adjustment at the top of the crosshead. Any cast steel surfaces are blasted or machined to give a smooth surface and promote ease of cleaning.
The muller caps are flush with the side face of the mullers and are equipped with a plugged lubrication port to provide for lubrication (for the Mix-Muller®). The Mix-Muller® is fitted with a standard grease nipple must be inserted in place of the plug to again lubricate the muller wheel bearings. The mullers are equipped with oil impregnated bronze bushings.
Two (2x) plows provide blending and movement of the material into the muller wheel path. Complete coverage of the mixing pan assures no dead spots in the mixing operation.
Discharge of composition is accomplished by remote operation of an automatic, pneumatically operated bottom discharging single door.
Muller Power System
The muller crosshead is driven through a keyed connection to a vertical drive shaft. The drive shaft is supported in the muller by a completely sealed crosshead support turret constructed as part of the muller crib. The bottom of the drive shaft fits into the gear reducer. The gear reducer consists of steel helical gearing with anti-friction bearings totally enclosed in a cast iron housing and provided with splash type lubrication.
Drive consists of a motor mounted on the machine base and coupled to the reducer by a manually adjustable mechanical variable speed drive arrangement to allow vertical shaft speeds. The drive motor is an explosion-proof motor manufactured to meet Class 1 and 2, Groups D, E, F, and G for hazardous duty applications.
For the Mix Muller®: The starter shall be NEMA size one (1), type 7 & 9 with a circuit breaker type disconnect and equipped with start/stop pushbuttons. The starter is manufactured to meet Class 1 Groups C and D, and Class 2 groups E, F, and G for hazardous duty applications.
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