Gyratory Screens

Counterflow Screener

Unit Overview:

High efficiency and capacity in a small footprint. This screener gets the job done without taking up additional space. The CounterFlow Super Screen provides high efficiency and high capacity industrial screening in a compact footprint.

Product Features:

BM&M GYRATORY MOTION

The unique technology developed by BM&M creates an unbeatable combination of motion and speed that generates higher throughputs and greater efficiencies. There are 3 core elements that work together to deliver these results.

1. Centering the drive in the middle of the machine to generate the a gyratory motion over the entire screen surface.
2. The eccentric weight drive assembly is lubricated for life. The unique static shaft design provides torsional stiffness ensuring long trouble-free service reducing ongoing machine maintenance costs.
3. Increasing speed results in higher screening energy being applied to the material, eliminating blinding while also increasing throughput.

• Double the Volume in the Same Footprint of Other Traditional Machines — Tight plant configuration? BM&M has you covered with the Counterflow CS Screen design. Produce higher throughput than traditional designs with our multi-tiered design.
• Lubricated for Life Drive System — BM&M’s drive can operate maintenance-free for 100,000 hours of service. All machines also include a 3 year drive warranty.
• Eliminate Blinding — BM&M’s speed and stroke generate a higher G-Force resulting in a stronger horizontal acceleration that effectively eliminates blinding. Ball Decks are included as standard options with the Superscreen. The motion of the screen will propel the captive balls to strike the underside of the screen element and dislodge particles.
• Quick Element Changes — The screen tensioning system assists in quick element changes. End screen access has saved BM&M customers 50% on their screen change down time.
• Dynamic Adjustability to Meet Customer's Changing Needs — All BM&M machines can be easily modified at site for speed and stroke to meet customers’ changes in product specifications.
• Quality Built for a Long Life — Our machines are manufactured in-house. BM&M machines are still running from the 1980’s and this is a testament to our superior quality workmanship.

Multi-Deck Screener

Unit Overview:

Highest capacity. Perfect for grain and agriculture. This machine features BM&M's highest capacity while maintaining a compact footprint. The Multi-Deck Screen is a stacked confirguration screener that offers BM&M’s highest capacity screener in the most compact footprint possible and is ideal for agricultural applications.

Standard and High Capacity

Constructions

• Oil Resistant cleaning balls

• Dust Aspiration Ports

• High Temp Construction (180 - 250 °F)

• Hanger remote lubrication

• Drive Bearing temperature element

Product Features:

Deck Sizes: 56” x 86”

60” x 120”

• Number of Decks available - 1 through 3

• Up to 400 sq. ft. per deck

• Pre-screen and Distribution Box

• Ball-Deck cleaning - synthetic balls/hardwood frames

• Enclosed construction

• Quick Change screen access - hinged doors at both ends

• Replaceable pans

• 300 RPM standard operating speed at a 11/4” diameter stroke

• Motor - 1800 RPM

• Adjustable stroke counter weight assembly c/w maintenance

free bearing

• Construction - welded mild steel, fully stress-relieved

• Hollow structural steel support stand

• Custom Discharge Chutes designed for your application

Super Deck Screener

Highest capacity. This machine features BM&M's highest capacity for industrial applications while still maintaining a compact footprint. The Super-Deck Screen is a stacked configuration machine that offers BM&M’s highest capacity screener in the most compact footprint possible. The Super-Deck screen is BM&M's High Capacity, high-speed horizontal gyratory design. It Is dynamically balanced to allow greater rotational speeds and strokes than conventional sifters and screeners. The BM&M Super-Deck has the same patented BM&M aggressive screen action that enables all BM&M models to achieve high capacity and efficiency in many process industries. Models are available with 100 to 360 square feet of total screen area. The BM&M Super-Deck was designed to be flexible for all industries. The stroke and speed can be engineered for each application, and both variables can be easily changed in the field with no special parts.

Product Features:

• BM&M's drive uses a stationary shaft with a high speed rotating hub/counter-weight assembly to generate the eccentric motion.
• Maintenance costs are minimal as BM&M's drive assembly is lubricated for life.
• normally 1 0+ years.
• 3-year drive bearing warranty on all models.
• A spare drive belt is installed in every machine.

The Super-Deck's drive unit is at the center of the screen's mass by design to get the same pure circular screen motion, and the resulting efficiency, over the entire screen element surface.

• The screen can be tuned to operate at speeds from 180 R P M to 330 R P M versus conventional large screeners that simply cannot run faster than 180 RPM.

• The stroke can be adjusted from 5/8" to 1 ½ " as the application demands. Stroke changes i n the field ar.e a simple matter o f changing the number of weights on'.the bolted counter-weight'assembly.

• Stroke changes in the field are a simple matter of changing the number of weights on the bolted counter-weight assembly.

• The consistent motions across the entire element, combined with the Super-Deck's high speeds and adjustable stroke, allows the machine to be tuned for maximum efficiency.

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Chip Feeder

Unit Overview:

BM&M’s Rotary Star Feeder isa surge bin mounted device which evenly supplies chips toa chip screen. The Feeder is bolted to the bottom of a suitably sized surge bin by means of a flanged connection.A surge bin and feeder can reduce the size of your chipscreen by reducing the surge capacity requirements of the screen, and by increasing the chip screen’s efficiency through even distribution. Standard practice is to use a feeder that is 1 to 2 feet narrower than the chip screen.

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❖ Positive displacement 6-pocket rotor, evenly distributes load onto screen infeed chute.

❖ Two-row spherical bearings provide long trouble free life.

❖ Relief-gate controlled by adjustable pneumatic cylinders allows oversize chunks or debris to pass through.

❖ Standard drive components such as a shaft mount helical reducer,1800 RPM motor, v-belt drive and fully enclosed guard, make the feeder easy to service.

❖ Optional variable speed control gives infinite feed-rate control.

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Chip Classifier

Unit Overview:

BM&M’s Chip Classifier provides valuable quality and maintenance feed-back for any chip producer. The Classifier’s gyratory action is exactly like our full size Chip Screens. This allows you to use the Classifier to predict chip quality and thus avoid problems with your chip buyers. Additionally theClassifier can be used to optimize your chipper knife sharpening schedule and your screener hole sizes for minimum fibre loss. The BM&M Classifier is unaffordable, lightweight, and portable unit that comes complete with every-thing you need including the exact screen size, or thickness trays for your application.