Brock Grain Systems News

Brock Adds 3500 Series Commercial Sweeps to Grain Handling Lineup

Brock’s 3500 Series Commercial Sweeps can withstand grain loads of nearly 2 million bushels (50,800 metric tons).
Brock’s 3500 Series Commercial Sweeps can withstand grain loads of nearly 2 million bushels (50,800 metric tons).
MILFORD, Indiana, U.S.A. — New Brock® 3500 Series Commercial Sweeps give commercial grain elevators and large farm operations another tool to remove grain from storage bins. These sweeps are built to withstand heavy loads of corn and other grains held in large bins up to 156 feet (47.5 m) in diameter.

3500 Series Sweeps are an all-electric option that doesn’t require hydraulics. They use an explosion-proof, heavy-duty motor with V-belt drive and electrical collector ring for cord-free operation.

True Zero Entry
Brock’s heavy-duty sweep sections eliminate the need for floor jacks, allowing for zero entry during bin unloading.

Bin Wall Cleaning
An aggressive rotating bin wall agitator breaks up hard-packed fines and soybean pods from the bin wall, while an adjustable back shield lets operators fine-tune the sweep length to a bin’s internal clearance requirements.

Positive Traction
A positive sprocket rail drive provides no-slip operation and more pushing torque. A standard auto drive feature manages grain avalanches and compacted grain without the need to reverse.

“Brock engineers designed our new 3500 Series Sweeps to withstand the massive grain pressures generated in our largest and tallest bins,” explained John Tuttle, Director of Sales for Brock Grain Systems. “They are strengthened to not need to reverse away from the pile, even during grain avalanches.”

Brock 3500 Series Sweeps are available in two auger sizes. The 12-inch (305-mm) sweep auger fits bins from 30 to 105 feet (9.1 to 32 m) in diameter and has an unload capacity of 4,000 or 6,000 bushels (102 or 152 metric tons) per hour. The 16-inch (406-mm) sweep auger fits bins from 60 to 156 feet (18.3 to 47.5 m) in diameter and has an unload capacity of 8,000 or 10,000 bushels (203 or 254 metric tons) per hour.

Part of the CTB, Inc. family of companies, Brock Grain Systems ( is a global provider of grain storage, handling, conditioning and structural systems. Brock has a long tradition of developing industry-leading, innovative products and a reputation for delivering BROCK SOLID® reliability and durability. Founded in 1957, Brock offers systems under the Brock® and LeMar® brands. The company operates facilities in Indiana, Iowa and Missouri and features an extensive independent dealer network.

CTB, Inc. ( is a leading global designer and maker of systems and solutions for storing, conveying and preserving grain; producing poultry, pigs and eggs; and processing poultry, fish, vegetables and other foods. The company also produces buildings, stables, software solutions for food processing and products for various other applications. CTB’s strategy for growth includes best cost manufacturing, a product-driven focus, expanded global physical presence, strategic acquisitions and enhanced financial strength. The Berkshire Hathaway-owned company serves its customers through a worldwide distribution network.