Contact Us Today 519-698-2948
Quality Gravity Boxes Since 1989
Bruns gravity boxes are engineered for strength, reliability, and long-term durability. Built with solid welded seams and heavy-duty construction, each box is designed to handle demanding loads season after season. Every unit is shot-blasted for superior surface preparation, then finished with a premium powder-coated coating that resists rust, wear, and harsh field conditions.
Available on trusted Horst running gears, Bruns gravity boxes deliver smooth towing, dependable performance, and proven reliability in the field. The combination of rugged box construction and Horst Wagons ensures a package farmers can rely on during the busiest times of the year.
Supported by our established dealer network, customers benefit from local sales expertise, parts availability, and after-sales service. Many models are stocked and ready through participating dealers, minimizing downtime and keeping operations moving. Built in Canada, Bruns gravity boxes deliver solid construction and dependable support you can count on year after year.
400 Bushel
400 Bushel
400 Bushel
Slope: Back 27° - Ends 37°
Shell thickness: 12 Gauge (0.105")
Door opening size: W: 29" H:15"
Weight: 2500 lbs approx.
Outside dimensions: L 150" W. 94" H. 92"
Dimensions are without tarp, ladder & running gear installed
500 Bushel
400 Bushel
400 Bushel
Slope: Back 30° - Ends 30°
Shell thickness: 12 Gauge (0.105")
Door opening size: W: 43" H: 10"
weight: 3200 lbs. approx.
Outside dimensions: L 192" W. 103" H. 90"
Dimensions are without tarp, ladder & running gear installed
600 Bushel
600 Bushel
600 Bushel
Slope: Back 30° - Ends 30°
Shell thickness: 12 Gauge (0.105")
Door opening size: W: 43" H: 10"
weight: 4000 lbs. approx.
Outside dimensions: L 192" W. 103" H. 102"
Dimensions are without tarp, ladder & running gear installed
800 Bushel
600 Bushel
600 Bushel
Slope: Back 30° - Ends 30°
Shell thickness: 12 Gauge (0.105")
Door opening size: W: 48.75" H: 8.75"
weight: 5500 lbs. approx.
Outside dimensions: L 240" W. 105" H. 111"
Dimensions are without tarp, ladder & running gear installed
OPTIONAL ROAD LIGHTS
Turn heads and stay safe after dark with our sleek LED road lights—bright, efficient, and built to keep you visible long after the sun goes down.
POLY FENDERS
Give your gravity wagon the protection it deserves. Our high-quality poly fenders are lightweight, ultra-durable, and designed to deflect mud, rocks, and road grime like a pro. They won't rust and they add a clean, finished look that means business. Whether you're hauling through fields or down backroads, these fenders are a rugged, no-nonsense upgrade that keeps your wagon—and your investment—looking sharp.
SPRING TONGUE ASSIST
Add an optional spring-assisted tongue. This significantly reduces lifting effort, making hookup easier and safer. The lightweight feel helps prevent strain, offering added convenience and protecting the operator's back.
WINDOWS
Glass windows provide a simple way to check product levels inside the gravity box without climbing the ladder, making monitoring easier during use.
DOOR IN DOOR
Our gravity box door features a convenient two-stage design with a small sliding door that opens independently ahead of the main door—ideal for precise flow control and easy grain sampling without fully opening the main gate.
DOUBLE COMPARTMENT
Our double compartment gravity box is designed for versatility and efficiency—perfect for transporting two different products in a single load. Ideal for seed and fertilizer or multiple crop types, this dual-bin design maximizes productivity while maintaining the durability and reliability you expect.
ROLL TARP
Our tarp kit features a Shur-Lok® style roll tarp system designed for ease and efficiency—no more struggling with ratchet straps. The fixed-handle design allows for quick, secure operation every time. Built for durability, our system includes high-quality bungee cords backed by a 4-year warranty with hassle-free replacements.
INTERIOR LADDER
Includes a standard interior ladder for safe and convenient access when entry into the gravity box is necessary.
AUGER ADD-ON
Equip your gravity box with a hydraulic auger for efficient transfer of seed or fertilizer to your planter. Available in 12', 14', and 16' lengths with 6" or 8" diameter options. Choose from Lab or Market style augers, with construction options including steel, stainless steel, or plastic to suit your application.
EASY CLIMB LADDER
Best-in-class slanted ladder—designed for maximum safety and ease of use. Featuring aggressive grip steps and sleek, ergonomic handrails, this upgraded ladder offers superior traction and stability during entry and exit.
SCALE KIT
Enhance your gravity box with a user-friendly scale system for accurate load monitoring. Compatible with industry-leading Digi-Star and Scale-Tec scale kits, ensuring reliability, ease of use, and seamless integration.
BOLT-TOGETHER DOOR WHEEL
New bolt-together door wheel design allows for quick and easy sprocket replacement, minimizing downtime and maintenance effort. Now equipped with a 14-tooth sprocket to improve mechanical efficiency and provide smoother operation.
AUGER W/ POWER PACK
Standalone hydraulic power packs available to operate your auger without the need for a tractor—ideal for remote sites, increased flexibility, and simplified operation.
Optional Center Dump Chute
Built for fast, clean unloading at elevators or pits. Durable powder-coated steel construction for long-lasting performance
Repairs & Service You Can Rely On
Bruns Mfg offers professional repair and service work, both in-shop and on-site, to keep your equipment working when it matters most. From structural repairs and welding to component replacement and adjustments, our experienced team handles every repair with the same attention to detail as our new equipment.
Whether it’s routine wear or unexpected damage, we focus on durable repairs, quality workmanship, and quick turnaround to minimize downtime and get you back to work with confidence.