Our powerful, positive chain-drive belted floor ensures you won’t have slippage giving you a fast unload rate that is smooth and gentle. Our Prairie Slide HMW linings allow you to haul wet materials such as lime and manure that are known to stick to end-dump walls causing frequent rollover accidents.

Easily change between crops with no modifications. Switch from sugar beets to grains and back without touching a thing! Every Strong Box live-bottom semi-trailer and bulk bed have a small grains seal installed from the factory.

Standard Features:

• Obstruction-free interior with aerodynamic enclosed side walls
• 3/16″ Prairie Slide liner on slopes to reduce skinning and load sticking
• Small grains seal kit is standard on all trailers
• Double planetary gear box with positive drive system
• Minimal maintenance with only 3 bearings
  • No rollers or friction drive belts to maintain
• LED taillights and DOT-approved bumpers
• Hydraulically operated side door with safety latches
• In-cab operator console for both side and rear door operation

• Box lengths of 20′ up to 26′
• Side wall height options: 60″, 66″, 72”
  • 12” tip tops on 3 sides
• Volume: The 24’ bulk bed is our most common, but we also offer 20’ all the way up to 26’. Our box measures 100” wide giving you a large payload. We also offer 72:” side walls and 12” tip tops if you are looking for more. A 26’, with 72” can haul right around 550 bags of potatoes. With our positive drive system, you will not have to worry about belt slippage.
• Flap-Belt width options​
  • 30 and 50″​
• Smooth-Belt width options​
  • 30”
• Drive System: The chain in flap system has been around from the beginning proving its simplicity and durability, but a newer addition to our lineup is our positive drive, smooth belt. Both are offered in 30” wide making them ideal for sugar beets, potatoes and other vegetables. More recently we have added a 50” wide chain and flap offering in our bulk beds. This product has been a hit in customers hauling sugar beets, grains, lime ash, silage, litter and distiller’s grain.

• Shur-Co tarp systems
  • Manual or Automatic​
• Roll tarps: The Shur-Lok manual roll tarp system will protect whatever you are hauling. Its simple design uses tension to hold the tarp tight when its closed, so you do not have to rely on bungee straps. Opening and closing the tarp is as simple as a 30-second process. The 4500 automatic roll tarp with a Smart 3 remote control system is a must have. Whether you are preparing for the quick unexpected rain showers or trying to temperature control your crop, tarping your load is as easy as a push of the button.
• Professional finishing
  • Metallic, multi-color and decals
• Finishing and paint: If you have a color in mind, we can make it happen. Whether you are looking to match your fleet or simply stand out from the rest, our professional body shop finish will be sure to get the job done. We offer metallics, topcoats, and striping to fit your needs.
• DOT-approved bumpers

Our powerful, positive chain-drive belted floor ensures you will not have slippage giving you a fast unload rate that is smooth and gentle. Our Prairie Slide HMW linings allow you to haul wet materials such as lime and manure that are known to stick to end-dump walls causing frequent rollover accidents.

Easily change between crops with no modifications. Switch from sugar beets to grains and back without touching a thing! Every Strong Box live-bottom semi-trailer and bulk bed have a small grains seal installed from the factory.

Standard Features:

• Obstruction-free interior with aerodynamic enclosed side walls
• 3/16″ Prairie Slide liner on slopes to reduce skinning and load sticking
• Small grains seal kit is standard on all trailers
• Double planetary gear box with positive drive system
• Minimal maintenance with only 3 bearings
  • No rollers or friction drive belts to maintain
• LED taillights and DOT-approved bumpers
• In-cab operator console for door and belt operation

• Lengths from 38′ up to 53′
• Side wall height options: 60″, 66″, 72”
  • 12” tip tops on three sides
• Volume: Whether you are looking for a 36’ trailer with high sides to get in and out of tight sugar beet fields, or in need of a 53’ quad axle to get your potatoes to the processing plant we have options that fit your needs. Our 12” tip tops can be added to any trailer allowing for more volume while keeping the load side a perfect height to avoid unwanted crop damage on delicate vegetables. Our tip tops are also engineered with a reverse endcap on the rear making a perfect combination for tarps that avoid unnecessary damage from harvester booms. Our “Full Opening Rear Combo Door” has a 16” offset hinge that will open the rear door up and over the tip tops by 4” keeping the crop off the rear door while unloading.
• Flap-Belt width options​
  • 30″, 36″ & 50″​
• Smooth-Belt width options​
  • 30″, 36″ & 50″​
• Drive System: The chain and flap system has been around from the beginning proving its simplicity and durability, but a newer addition to our lineup is our positive drive, smooth belt. We offer 30”, 36” and 50” widths. The 30” is most common with our potato customers giving you a gentle and controlled unloading speed. The 36” is a must have if you are doing both sugar beets and potatoes and will still unload lime and litter without bridging. The 50” option is most common with our sugar beet, silage and lime ash customers. This configuration gives you the fastest unload rates and most volume.
• Spring- or air-ride suspension, multiple axles configurations, duals or super singles​
• Running Gear: Choose between the comfort of air-ride or the simplicity of spring-ride suspension. Whether you are looking for a quad axle with lift options or a tandem axle with a fixed spring, we have a solution for you.
• Full opening hydraulic rear door
  • Automatic rear door linkage​
  • Turns belt on as door opens
• PTO wet kit systems
  • Electric over hydraulic drives
  • Gas over hydraulic drives

• Rear Gate: When you order the full-opening rear door you will have more options on the product you can haul. The hinge is offset 16” allowing the door to open up and over your pile avoiding damage to the rear door and your payload. If you have the 30” or 36”, belt you will have a combination gate with a bottom potato gate that can be used to unload vegetables gently and smoothly. If you have the 50” flap belt standard, the combination gate is a 22”x50” wide knife gate perfect for unloading grains. Either way, the combination gate features a fool-proof linkage that will turn you belt on as the door opens ensuring there is no damage to the rear by accidentally turning the belt on with the door closed. This also allows you to unload without needing to step foot out of the cab. You can always use the manual override if you wish to unload your product manually.
• Hydraulic systems: Our trailers can be powered by a PTO pump from your semi-tractor with as little as a 19 gallon per minute pump and 2800 psi. For those who want another solution, we do over multiple electric over hydraulic and gas over hydraulic power systems that can be outfitted onto any trailer.
• Shur-Co tarp systems
  • Manual or Automatic​
• Roll tarps: The Shur-Lok manual roll tarp system will protect whatever you are hauling. Its simple design uses tension to hold the tarp tight when it’s closed, so you do not have to rely on bungee straps. Opening and closing the tarp is as simple as a 30 second process. The 4500 automatic roll tarp with a Smart 3 remote control system is a must have. Whether you are preparing for the quick unexpected rain showers or trying to temperature control your crop, tarping your load is as easy as a push of the button.
• Professional finishing
  • Metallic, multi-color and decals
• Finishing and paint: If you have a color in mind, we can make it happen. Whether you are looking to match your fleet or simply stand out from the rest, our professional body shop finish will be sure to get the job done. We offer metallics, topcoats and striping to fit your needs.
• DOT-approved bumpers

This system is a cost-effective way to load first-cutting hay if the conditions are wet without rutting up a field. It is also great for farms who have a lot of sand and want to run semis but do not want to pull trucks or have the extra handling on their crops. 

Introducing our new product, the “Converter Dolly.” We have heard it called many names such as dolly, jo-dog, converter and jeep. Regardless, it allows you to hook a field tractor up to a semi trailer to load it in the field and return it to the headland without dragging semi’s through the mud or other unfavorable conditions. Help reduce compaction, ruts and headaches on your farm.

Standard Features:

• Articulating Bull Pull hitch
• Easily removable hitch
  • 5,000 lb trailer jack​
• 22,500 lb. Meritor idler axles
• Hutchinson spring suspension
• Overbuilt steel main frame
  • Powder coated finish
• Fenders with mud flaps​
• Holland 5th Wheel
• DOT and slow moving vehicle markings