Bench Industries’ 72″ model is a proven air screen grain cleaner that has served the grain and seed cleaning industry for decades. Known for its reliability and versatility, this machine handles a wide variety of commodities with precision and consistency. Designed for operations that demand high-quality results, it remains a trusted solution for agricultural producers and seed processing facilities alike.
Available in both Stationary and Portable with many different options Highlighted at the bottom of the page.
Key Features of the Bench Industries Air Screen Machine (Model 354722A)
- Complete Seed Cleaning Unit: Designed to handle many aspects of seed cleaning in one compact system.
- Fast Setup: Easily and efficiently setup to clean at any bin site.
- High Capacity: Processes 300–500 bushels per hour on seed efficiently. Market/ Pre-cleaning capacity of 1000+ bushels per hour.
- Three Screening Decks: Includes scalp, grade, and sift decks for thorough cleaning.
- Clean Screens: Ball racks with high-density balls under each deck keep screens clean during operation.
- Dual Air System:
- Top Air: Suction before the product flows onto the first screen.
- Bottom Air: Suction after the product flows off the bottom screen.
- Versatile and Adaptable: Screens are easily interchangeable to accommodate different commodities.
- Smooth Operation: Equipped with a steel counterbalance that moves opposite to the shoe for stability and reduced vibration.


Flexible Configurations to Meet Your Needs
The 72″ Air Screen Grain Cleaner is available in both stationary and portable models, offering a variety of customization options. Enhance functionality within your seed processing facility with stands, catwalks, handrail, and stairs for easier access. Optimize grain processing with the debearder add-on or increase versatility with the intercropping bottom cross conveyor. It is a proven choice for farmers and facilities looking to trust their grain and seed cleaner.










Interested in Intercropping?
Our machines are designed to efficiently separate and clean intercropped commodities, helping you maximize the value of your harvest. Learn how Bench Industries’ solutions can support your intercropping operations.
See It In Use: Real-World Testimonial
Learn how on-site grain cleaning with a commercial grain cleaner can improve efficiency, protect product quality, and give producers more control over their harvest.
The 72″ Air Screen Machine has been a proven performer for decades. It’s the ideal grain and seed cleaner and is the balance of capacity, precision, and footprint, making it the go-to choice for farms, seed plants, and small processors across the country.
Whether you’re cleaning wheat, lentils, barley, oats, or grass seed, or any other commodity this machine delivers consistent separation using a combination of scalp, sift, and air lift.
Why the 72″ Still Leads the Field
This model is often preferred because it offers:
High throughput with a compact footprint
Three screen decks, allowing multiple separation points
Counterbalance, for smooth operation and increased rpm
Cleaner Balls, to help keep screens from plugging
Precision airflow adjustment for removing light material like chaff, weed seed, or fines
A solid steel frame and industrial-grade components for years of reliable use
Designed for Flexibility
This machine is ideal for:
Seed cleaning facilities needing fast, reliable throughput
Commercial grain operations focused on reducing dockage
Processors cleaning multiple crop varieties throughout the year
It also integrates easily with:
Portable or permanent setups, depending on your space and goals
Length Separators, like indents, or discs
Density Separators, like Gravity Tables
Color Sorters
Common Applications
The 72″ Air Screen is frequently used for:
Wheat, barley, oat, rye, and cereal grain operations across North America
Pulse crop facilities that need to handle volume without damaging delicate seed
- Grass Facilities for efficient and precise cleaning
Custom seed cleaning setups
Looking to Upgrade or Expand?
Bench Industries can help you integrate the 72″ Air Screen Grain Cleaner into an existing cleaning line or configure a full system from the ground up.
➡️ Contact us to get started.