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Push your grain on a cushion of air!

PUSH-PAC conveyors are compact, self contained pressure-only pneumatic systems designed to convey grain to silos and bins. Versatile, powerful, and easy to install, PUSH-PACs efficiently and gently “push” grain 100′ to 250′ (30m to 75m) or more.

Push-Pacs are ideal for transferring grain to or from dryers, trucks, dump pits, hoppers, storage bins, silos, mixers, bunkers, railcars and feed bins.

PUSH-PACs are portable enough to service several grain transfer sites. Convenient fork lift base and lifting loops make moving the PUSH-PAC system a simple operation.

Choose from five basic PUSH-PAC models to meet your grain transfer needs:

Specifications Conveying Capabilities
Model 30 10 HP  1 or 3 Phase 3″ 300-500 Bu/Hr 8.0-13.6 mt/Hr
Model 40 15 HP 3 Phase 4″ 500-800 Bu/Hr 13.6-21.8 mt/Hr
Model 50 30 HP 3 Phase 5″ 900-1300 Bu/Hr 24.5-35.4 mt/Hr
Model 60 50 HP 3 Phase 6″ 1200-1900 Bu/Hr 32.7-51.7 mt/Hr


*Capacities shown using 100′ (30m) of piping – 70′ (21m) horizontal, 30′ (9m) vertical and two 90′ elbows – moving dry US #2 corn. Capacities will vary depending on distances, type and condition of grain, altitude, temperature, humidity and piping set-up. Long distance conveying at an incline should be avoided.

To minimize grain damage and pipe wear, use a surge bin or hopper to feed the PUSH-PAC when transferring grain from a dryer .

Remote Airlock Drive Option

This optional setup is available on all the PUSH-PAC models. The airlock unit is mounted on a separate frame with its own electric drive motor and reduction gearbox, enabling the air pump and main drive motor to be remotely located – convenient for restricted quarters or specialized applications

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Push Pac Model NumbersPush Pac SpecificationsPush Pac Bin Pipe Recommendations

Piping and Accessories


Adapters are required for coupling flexible rubber or flexible metal piping. An exclusive Seedcuff™ version for metal flex provides a smoother transition for gentler material handling.

  • Available with Male or Female Camlock Coupler.
  • Available as Stub or Seedcuff only without coupler.

Bin and Silo Piping

Plumb your bins and silos for fast and easy filling.

Couplers – Camlock

Camlock couplers connect in seconds without separate clamps or bolts. Proper pipe alignment and a good vacuum or pressure seal is assured.

When used with galvanized or stainless steel flex pipe, camlock couplers ensure the correct direction of bulk material flow, improving your vac’s performance and minimizing pipe wear.

Camlock couplers typically are reusable if your flex requires replacement. Reinstall the used camlock couplers on your new flex pipe and you’re set.

Camlock couplers can be used on all makes and models of pneumatic conveyors – just contact us to quote a retrofit!

Couplers – Compression

Use compression couplers to butt-connect straight pipe or stubs. They are commonly used for bin and silo plumbing installations and are available in virtually any diameter. Compression couplers feature a heavy rubber gasket, steel inner sleeve and bolted compression for solid connections

Couplers – Quick-Clamp

The quick clamp with J-hook quickly and securely connects 1″ or 1-1/4″ angle-flanged piping. Many older vacs use flanged steel pipes, especially in diameters of 8″ or greater.

Couplers – Quick-On

Quick-On couplers are very handy for pipe connections requiring frequent access or disconnection.

Featuring an integral hand tightening screw, quick-on couplers can be installed without tools. Each coupler comes standard with a gasket.

Piping – Aluminum – Straight

Use heavy-duty aluminum pipe that is lightweight yet strong and lasts. Available with camlock couplers for fast and easy pipe connection.

4″=.072″ Wall Thickness, 5″=.078″ Wall Thickness, 6″=.083″ Wall Thickness

Flex Pipe Guide

Tip!  Extend the life of
your flex – rotate 90° frequently.

Flex Only

+ Carbon Steel Ends

+ Carbon Steel Ends
+ Swivel

+ Carbon Steel Ends
+ Camlock Couplers
+ Carbon Steel Ends
+ Reducer
+ Camlock Couplers
+ Carbon Steel Ends
+ Swivel
+ Camlock Couplers

+ Carbon Steel Ends
+ Swivel
+ Reducer
+ Camlock Couplers


Piping – Flex – Galvanized Steel

Constructed of hot dipped galvanized carbon steel strip for greater protection from weathering, this .019″ thick galvanized flex pipe stands up in tough conveying environments. Its high-temperature packing virtually eliminates air leaks and provides the high capacities.

Piping – Flex – Galvanized Steel with Stainless Steel Liner

Constructed of hot dipped galvanized carbon steel strip and lined with 302 stainless steel, this flex measures .038″ thick. It is designed to withstand the most grueling applications. It features high-temperature packing and an Easyflo™ smooth bore to minimize grain damage and reduce conveying friction. Also yields higher capacities, greater pipe strength and a longer service life.Piping – Flex – Stainless Steel

Tackle your toughest applications with the most flexible and easy to handle metal flex. Constructed entirely of 302 stainless steel, this flex is contamination and corrosion resistant. More durable than galvanized flex pipe, its high-temperature packing virtually eliminates air leaks and provides optimum performance.

Piping – Flex – Rubber – Standard

A compound rubber flex formulated to dissipate static electricity and constructed with a rigid PVC helix. The standard rubber flex is lighter and more flexible, making it best suited for clean-up applications. When durability and service life is of primary concern, the heavy-duty rubber flex is recommended.

Piping – Flex – Rubber – Heavy Duty

Use heavy duty rubber flex when you need flexibility but require longer service life. Formulated to dissipate static electricity and constructed with a rigid PVC helix.

Piping – Elbows

Use with compression couplers to butt-connect to straight pipe, another elbow or stubs. Also available with camlock couplers attached.

Elbows are commonly used for bin and silo plumbing installations. All elbows are steel grit blasted, primed, and painted.

Available in 15, 30, 45 ,60 and 90 degree bends.

Piping Packages

Contact us about recommended piping packages for your application. Our experienced staff will guide you through a piping selection process that best fits your needs.


Carbon steel reducers provide a smooth transition between two different pipe diameters. Available in numerous configurations with or without camlock couplers attached.

Specifications, drawings, photographs, and design are for illustrative purposes only and are subject to change without notice. Also refer to the Legal section of this web site for more information.

Parts, Services and Support

PUSH-PACS are serviced through our distribution network or directly from the factory.

Call us today for:

  • Airlock tip adjustment
  • Airlock rebuilding and exchange
  • Air pump rebuilding and exchange
  • Seasonal inspection and tune-up
  • Grain vac rebuilding


Safety Notice – Important – Read This!

Entering a bin, silo, tank or other type of storage structure is hazardousWorking in and around bins, silos, and tanks
Entering a bin, silo, tank or other type of storage structure is hazardous. You can suffocate and die from the materials stored inside these structures. There also may be explosive, harmful or poisonous gas or dust in the air. A vac operator and all other personnel assisting should strictly adhere to the procedures outlined in “Bin, Silo, and Tank Entry Procedures” before entering a storage structure. For additional details regarding these procedures, reference OSHA Standards.

When entering grain tanks, bins, and silos, also follow these tips – “Bin Entry Do’s and Don’ts” from the Kansas Grain and Feed Association’s Safety, Health and Environment Committee.


it is your responsibility to read, understand and follow all of the safety instructions in your operator’s manual
Working with and around your vac
Before using your vac, it is your responsibility to read, understand and follow all of the safety instructions in your operator’s manual. Also make sure that EVERYONE operating or near your vac understands and follows all of the safety instructions in the manual.

Remember, a safety-minded, informed operator is the most important safety aspect of your vac. Accidents can be avoided. Do not risk injury or death — be certain that every operator of your vac is well acquainted with all the safety recommendations and operating instructions in the manual. Read “Vac Safety Guidelines”

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