Since 1844, Rotex Group has set the benchmark for high-performance industrial screening and separation. Their patented gyratory reciprocating motion technology and exclusive drive units achieve industry-leading G-loads that consistently outperform conventional vibrating screens — delivering precise particle separation, high throughput, and reliable long-term performance across the most demanding manufacturing environments worldwide.

Trotter Equipment has represented Rotex across Ohio, Indiana, Kentucky, and West Virginia for over 30 years. Our engineers combine Rotex’s world-class application engineering and laboratory testing capabilities with deep field experience across your industry — ensuring the right screener for every application, matched to your exact material, capacity, and sanitation requirements.

Rotex Equipment

The Rotex Group product line includes two families of equipment — Rotex branded screeners using patented gyratory reciprocating motion, and BM&M branded screeners using gyratory motion — covering the full range of industrial screening applications from high-capacity grain cleaning to precision sanitary separation.

Rotex® Brand Screeners

• Rotex® Industrial Screener — The machine that launched an industry. The original Rotex gyratory reciprocating screener delivers precise, rugged, and versatile dry particle separation across a wide range of materials and industries. Patented motion produces optimal G-loads for maximum screening efficiency with minimal degradation of fragile materials. Available in multiple deck configurations and construction materials including carbon steel, stainless steel, and sanitary finishes. The industry standard for chemicals, fertilizers, food ingredients, minerals, and plastics for over 180 years.
• Apex™ Screener — Maximum efficiency with minimal downtime. The Apex combines Rotex’s proven gyratory reciprocating motion with an innovative drive system that delivers superior screening performance at reduced maintenance intervals. Designed for high-throughput industrial applications where uptime is critical. Available in multiple sizes and deck configurations.
• Minerals Separator™ / MEGATEX XD™ — The highest capacities available in a single screening unit. Engineered specifically for the demands of minerals and mining applications including potash, salt, fertilizer, sand, and aggregate. Delivers exceptional throughput with precise cut points across multiple fractions simultaneously.
• Ultrex™ Sanitary Screener — Sanitary, ergonomic, and efficient — the ultimate package for food, dairy, and pharmaceutical screening. Designed to meet USDA, EHEDG, and FSMA sanitary standards. Tool-free disassembly for rapid cleaning and product changeovers. Eliminates contamination risks associated with conventional screener designs. Stainless steel construction throughout.
• RTX360 Vibratory Separator — High-performance round vibratory separator within a compact footprint. Ideal for liquid-solid separation, scalping, de-dusting, and classification of fine powders and slurries where a circular separator is preferred over a linear gyratory machine.
• MEGATEX™ Grain Cleaner — Engineered specifically for the grain industry. High-capacity grain cleaning and separation for wheat, corn, soybeans, canola, and other agricultural commodities. Removes fines, oversizes, and foreign material to improve grain quality and protect downstream processing equipment.
• Hi Cline™ — High-frequency screening designed specifically for fertilizer applications. Delivers precise separation of granular fertilizer products including urea, ammonium nitrate, potash, DAP, and blended fertilizers at high production rates.
• Plastic Pellet Screener™ — Speed, accuracy, and simplicity for plastic pellet quality control. Removes fines, streamers, angel hair, and oversized pellets from polymer production lines. Essential for maintaining pellet quality standards in polyethylene, polypropylene, PVC, and engineering resin production.
• Gradex® 2000 — Tighter control over particle quality metrics. Precision separation for applications requiring the most accurate and repeatable particle size cuts, including specialty chemicals, agricultural seeds, and premium industrial minerals.
• Direct Drive Feeder™ — Scalping and de-dusting in bulk. High-capacity vibratory feeder with integrated scalping screen for removing oversizes and fines ahead of primary processing equipment.

BM&M Brand Screeners

• Classic Screen / Chip Screen — High-capacity industrial gyratory screener proven for grain, rubber, wood chips, paper pulp, and a wide range of forest products and industrial bulk materials. The Classic Screen delivers consistent, reliable separation at high throughputs with a robust, low-maintenance design built for continuous duty.
• Super Screen — Greater screening speeds and larger strokes than conventional gyratory machines. The Super Screen delivers more separation capacity per unit of floor space, making it ideal for high-volume industrial and agricultural applications where throughput is the primary requirement.
• CounterFlow CS Model — More screening volume in a smaller footprint. The CounterFlow uses a unique counter-rotating motion to achieve high-efficiency separation in a compact design suited for facilities with limited floor space or headroom.
• CounterFlow Super Screen — High efficiency and high capacity in a small footprint. Combines the throughput of the Super Screen with the compact design of the CounterFlow for demanding applications where both capacity and space are critical.
• Multi-Deck Screen — Highest capacity for grain and agricultural applications while maintaining a compact footprint. Multiple screening decks in a single unit for simultaneous separation into multiple fractions.
• Super-Deck Screen — BM&M’s highest-capacity screener for demanding industrial applications. Designed for operations requiring maximum throughput while maintaining a manageable installation footprint.
• Chip Classifier — Critical quality control for chip producers. Analyzes and separates wood chips by both length and thickness simultaneously — the key quality metrics for pulp and paper production. Helps producers meet chip specifications and maximize pulp yield.
• Chip Feeder — Provides even and consistent feed rates with full-width distribution across the entire width of a downstream screen or chipper. Essential for optimizing the performance of chip screening and processing systems.

Rotex Screening Technology

What sets Rotex Group screeners apart from conventional vibrating equipment is the motion. Rotex’s patented gyratory reciprocating motion produces a near-horizontal, elliptical particle path across the screen surface — keeping material in contact with the screen longer and stratifying particles more effectively than circular or linear vibrating screens. Key technology advantages include:

• Patented gyratory reciprocating motion — Elliptical particle path maximizes screen contact time and stratification for sharper separation cuts and higher screen efficiency
• Industry-leading G-loads — Exclusive drive unit designs achieve optimal G-loads calibrated to your specific material for maximum throughput without blinding or pegging
• Automatic screen tensioning — Maintains consistent screen tension throughout operation to prevent blinding, extend screen life, and maintain separation accuracy
• Multiple motion types — Gyratory reciprocating (Rotex brand), gyratory (BM&M brand), and vibratory (RTX360) motions available to match any application
• Multi-deck configurations — Up to four simultaneous separation cuts in a single machine footprint
• Materials testing lab — Rotex Group laboratories worldwide provide free material screening tests to confirm equipment selection and screen sizing before purchase

Industries Served

Rotex Group screeners are trusted across a wide range of demanding manufacturing and processing environments:

• Agriculture & Grain — Wheat, corn, soybeans, canola, barley, oats, rice, seeds, grain cleaning and scalping
• Food & Beverage — Sugar, salt, flour, spices, coffee, tea, snack foods, confections, dried fruits and vegetables, dairy powders, food-grade bulk solids
• Pet Food — Kibble sizing, fines removal, foreign material separation, ingredient screening
• Fertilizer — Urea, ammonium nitrate, potash, DAP, MAP, blended NPK fertilizers, granular and prilled products
• Chemicals — Industrial chemicals, specialty chemicals, pigments, carbon black, resins, waxes, detergents
• Minerals & Mining — Potash, rock salt, sand, gravel, crushed stone, talc, silica, calcium carbonate, coal, ore, industrial minerals
• Plastics & Polymers — Plastic pellets, polymer powders, PVC, polyethylene, polypropylene, engineering resins, regrind, fines and angel hair removal
• Forest Products & Biomass — Wood chips, sawdust, bark, biomass fuel, pulp chips, paper fiber, chip classification for pulp mills
• Recycling — Post-consumer plastics, glass cullet, rubber crumb, electronic waste, compost, waste-to-energy feedstock
• Pharmaceutical & Nutraceuticals — Active pharmaceutical ingredients, excipients, vitamins, supplements, botanical extracts — sanitary construction available
• Biofuel — Corn ethanol, cellulosic feedstocks, wood pellets, biomass screening
• Nuts & Specialty Foods — Tree nuts, peanuts, dried fruits, snack ingredients, confection components

OEM Parts & Replacement Screens

Genuine Rotex Group OEM parts maintain efficient screener performance and minimize unscheduled downtime. Trotter Equipment can assist with parts identification and ordering for all Rotex and BM&M screener models.

• Screens — Highest quality replacement screens for all Rotex and BM&M screener styles and configurations. Fastest delivery times in the industry. Available in woven wire, polyurethane, rubber, and specialty media
• Consumables — Seals, sleeves, and mesh cleaning balls engineered to withstand harsh processing conditions
• Drive Heads — The heart of Rotex screeners. Industry’s most durable drive heads, built for trouble-free service. Drive head exchange program available with two-year warranty
• Fabricated Parts — Genuine Rotex top covers, bottom pans, box frames, and screen frames for exact fit and performance
• Precision Metal Parts — Crank pins, slide bearings, and all precision components required for proper screener operation
• Part Upgrades — Performance-enhancing upgrade kits designed to improve throughput, reduce maintenance, and extend screener service life

Services

• Engineering / Application Design
• Free Materials Testing at Rotex Group Laboratories
• Field Service & On-Site Technical Visits
• Operation & Maintenance Training
• Machine Startup Services
• Troubleshooting & Repairs

PARTS

• Spare Parts
• Sub-Assembly Replacements
• Replacement Screens — All Styles & Configurations
• Drive Heads & Drive Head Exchanges
• Consumables — Seals, Sleeves & Cleaning Balls
• Fabricated Parts & Precision Metal Parts
• Performance Upgrade Kits