Munson Machinery Co.

SCC-15-B screen classifying cutter
The SCC-15-B screen classifying cutter reduces hard, soft, and fibrous materials into particles of controlled sizes at high rates and with minimal fines. The proprietary rotor, consisting of cutter heads attached to interconnected parallelograms (a helical array of staggered holders), continuously shears oversize materials against twin, stationary bed knives. The cutter tips, which are available in stainless steel, tool steel, and tungsten carbide, can be slid onto blade holders and secured with one retaining socket-head screw, which allows for rapid replacement. The SCC-15-B cutter has carbide-tipped cutter heads along its entire shaft, with no frontal gaps between the tips. As a result, material is cut into uniform pieces with minimum imperfections or fines, and little to no generation of heat. The cutter has a 15-in.-wide (381 mm) throat that accommodates up to 30 parallelograms with 60 cutter inserts. Bed screen perforations range from 1/32 in. to 1.5 in. (0.79–38 mm) in diameter and up to 3 in. (76 mm) square, allowing the reduction of materials into uniform particles as small as 20–30 mesh. Shaft rotation speed is infinitely variable between 30 and 3,600 rpm. The cutter system is suitable for food, chemical, mineral, and plastics products.

Model 24 RDS 24 rotary drum screen
The self-cleaning Model 24 RDS 24 rotary drum screen removes solid materials from waste streams at high rates. The rotating cylinder is constructed from wedgwire screen that is available in seven orifice sizes. Cylinder dimensions include either 24- or 36-in. dia., with lengths ranging from 24 to 120 in., giving operators the option for throughput capacities ranging from 200 to 4,650 gal/min. The effluent stream discharges from a head box, overflowing a dam and flowing onto the outside of the rotating cylinder, allowing water to pass through into the cylinder. A blade scrapes sludge and debris collected on the outside of the cylinder, while an internal spray line dislodges particles blinding the screen. This unit is suited for use in food, pulp-and-paper, rendering, sewage, palletizing, and other applications in which solids must be removed from slurries in high volumes.

Model 700-TH-5-SS inline rotary mixer
The Model 700-TH-5-SS inline rotary mixer gently blends batches as large as 5.0 ft3 (142 L) with complete uniformity down to the 1-ppm level in under 3 min, and it is efficient across its entire usable capacity range of 0.25–5.0 ft3 (7.1–142 L). (Its standard weight capacity is 500 lb (226 kg) per batch.) The mixer is capable of evacuating the batch and leaving no residuals, and it can be sanitized rapidly without tools. It features a stationary inlet and outlet for inline operation, and a rotating drum with proprietary mixing flights that tumble, turn and fold material gently. This process imparts minimal energy to the batch while rapidly achieving uniformity, regardless of disparities in bulk densities, particle sizes or flow characteristics of batch ingredients. Features include internal mixing flights spaced for easy access, all stainless contact surfaces, continuous polish welds of 0.5-in. (12-mm) dia., external removable seals, and a clean-in-place (CIP) nozzle. It is suitable for use in industrial applications involving contamination-sensitive materials and/or frequent product changeovers.

Self-Cleaning Rotary Drum Screen
This self-cleaning rotary drum screen separates solid debris from wastewater at high rates while using little energy. It contains a rotating cylinder constructed of wedge-wire screen with a stationary blade (called a doctor blade) on the outside of the cylinder and an internal spray line. Effluent from a head box overflows a dam and flows onto the outside of the rotating cylinder. This allows water to pass through the wedge wire into the cylinder, where the doctor blade scrapes sludge and debris collected on the outside of the cylinder and an internal spray line dislodges particles blinding the screen. The separator is suitable for use in sewage treatment, pulp-and-paper, pelletizing, and many other applications that require solids to be removed from high-volume slurries. Containing few moving parts and taking up little floor space, the separator also has low investment, operating and maintenance costs. Available models include 24-in.-dia. drums with lengths of 24, 36, 48, 50 and 72 in., and 36-in.-dia. drums with 96- and 120-in.-lengths. Capacities range from 200 to 1,000 gal/min.

MX-1-SSJ miniature rotary batch mixer
The MX-1-SSJ miniature rotary batch mixer achieves 100% batch uniformity in less than 3 min. The unit has Type 304 stainless steel contact surfaces, wide spacing of internal flights for easy access, continuous polished welds, and external moveable seals. Construction of exotic alloys as well as carbon steel, and configurations with clean-in-place (CIP) vessel-cleaning nozzles, are available. The mixer features an internal spray line for liquid additions, a discharge chute to direct the flow of exiting materials, and an insulated, jacketed mixing drum that can be piped to an oil, steam or chiller system. It can blend batches from 100% to 15% of its 1-ft3 capacity, and can distribute ingredients with 100% uniformity regardless of disparities in the bulk densities, particle sizes or flow characteristics of batch ingredients. Its mixing process moves material from the sides of the vessel and folds it back toward the horizontal axis, which effects both a diagonal and a vertical tumbling motion. Lifters continuously cut out portions of the material and fold them back into the main body of the batch, resulting in rapid particle distribution without degradation. This process causes most of the particles to contact the jacketed vessel’s heated or chilled walls, maximizing heat-transfer efficiency.

Hammer Mill Model 141
The Hammer Mill Model 141 reduces friable and fibrous materials into uniform particle sizes ranging from 20 to 300 mesh. Centrifugal force causes pivoting hammers to stand at 90-deg to the rotating shaft, throwing material against breaker plate ridges in the feed section, and then against perforated bed screens through which sized material exits. The shaft, integral hammer discs, disc pins and hammers are driven by a 75-hp motor at 1,800–4,000 rev/min, achieving hammer tip speeds of 8,700–19,500 ft/min even under heavy loads, reducing a broad variety of solid material into particles at high rates. The mill can pulverize wood scraps, process grain, break-down impact resistant housings, destroy ammunition shells, pulverize newspaper, separate rubber from cord fiber, and reduce the size of a variety of other chemical, plastic, rubber and agricultural products. Particle size is determined by the size of the screen perforations. In addition to a lower 180-deg cylinder screen, the unit features an extra 90-deg screen located in the hinged section of top case, increasing screen area by 50% to a total of 270-deg, utilizing the entire area of the case.

Cylindrical Plow Blender
The Cylindrical Plow Blender is a cylindrical vessel with a horizontally oriented mixing shaft that rotates about four-times faster than ttrough-style blenders. This design fills the entire mixing vessel with fluidized material, maximizing transfer rates while minimizing impact and degradation. The unit can achieve 100% uniform blends in ratios to one part per thousand, blend significantly faster than conventional trough-style horizontal mixers, and handle a greater variety of materials, except for pastes. It is available as a jacketed unit for heating and cooling applications, and with high-speed intensifiers to increase product dispersion and shear; automated controls, stainless steel construction finished to sanitary standards; and spray nozzles to coat or agglomerate particles, often with less liquid than would be required with trough-style horizontal blenders.

Maxum 30
The Maxum 30 can shred 1,6000-lb blocks of abrasive materials, such as alumina oxide composites, asphalt and resins. Blocks as large as 2 ft by 2 ft by 6 ft can be reduced to particles within narrow size ranges determined by the diameter of bed-screen perforations, which can range from 1/32 in. to 1-1/2 in. Each of two rotors has a staggered array of specially treated solid carbide conical tips. Two 14-in-dia. counter-rotating shafts rotate at 25–35 rpm, producing up to 240 ft3/h of sized product.

Sanitary, Jacketed Rotary Batch Mixer
The model 700-TH-20-SSJ, sanitary, jacketed rotary batch mixer is designed with a stationary inlet and discharge, and a rotating drum with proprietary mixing flights that tumble, turn and fold material gently while achieving 100% uniformity in two to three minutes. Disparities in the bulk densities, particle sizes or flow characteristics of batch ingredients do not impair mixing, according to the company. The mixer can be piped to an in-plant chiller to prevent heat-sensitive bulk products from agglomerating, clumping, degrading, smearing and/or sticking to contact surfaces of mixing and packaging machinery or to the final consumer packaging. It can also be connected to an inplant steam, hot water or hot oil system to maintain elevated material temperatures during processing. Models range in capacity from 10 to 600 ft3 and are equally effective at blending batches ranging from 5% to 100% of rated capacity, obviating the need for multiple mixers in some cases.

Model SCC-30 Screen Classifying Cutter
The Model SCC-30 screen classifying cutter cuts hard, soft and fibrous materials into controlled particle sizes at high rates with minimal fines. It features a patented helical- rotor design with dozens of cutter blades attached to a helical array of staggered holders, called interconnected parallelograms, to continuously shear oversize materials against twin, stationary bed knives. Primarily employed for coarse grinding of materials into particles of uniform sizes ranging from granules down to 20–30 mesh, the cutter has a 30-in. (762 mm) throat width and can be fitted with 60 parallelograms with 120 cutter inserts. Bed screen perforations range from 1/32 to 1-1/2-in. dia. and up to 3-in. square, depending on material characteristics and desired particle size. The 11-in. shaft rotates at 30–3,600 rev/min producing up to 1,000 ft3 of sized product per hour, depending on the application. Munson Machinery Co.