Narrower Columns At Top
Narrower width grain colums used at the top of the dryer increase airflow on the wettest grain, starting the drying process sooner

self cleaning floor

Self Cleaning Plenum Floor

Brock's unique self-cleaning plenum floor design allows fines, dirt and bees'wings to recycle back into the grain safely while also reducing routine cleaning maintenance.


Commercial Burner
A high-capacity, low-emission Maxon® burner is standard on BROCK® Commercial Tower Dryers. The commercial-grade burner features a cast aluminum manifold to help reduce orifice corrosion and maintenance. Brock’s unique application of centrifugal fans allows a square burner to be mounted in the square duct and provides uniform airflow across the complete burner surface for efficient combustion and even heat mixing. The generous length of duct above the burner further enhances the temperature balance from the top to the bottom of the heat plenum.
commercial burner


DWDI Centrifugal Fans

Double-wide/double-inlet (DWDI) centrifugal fans were the first choice for the BROCK® Commercial Tower Dryers because they deliver more air while using less horsepower.

Easy Access & Service

Ample clearance under the dryer offers easy walk-through access and generous space for auxiliary equipment. Fan and motor design provides for easy access and serviceability.

Stainless Steel Screens

Stainless steel perforated screens are used in two standard sizes (.078 and .062 inches) to help confine particulates for cleaner dryer operation.

grain columns

Unobstructed Grain Columns

Fresh air along with electrical conduits and gas piping enter at the bottom of the dryer and not through the grain columns. This promotes even grain flow and efficient drying. Air inlet louvers are adjustable to control the volume of cool air entering the dryer.


Gentle Unloading System
Brock’s innovative and gentle Circular Drag Unloading System (patented) evenly meters and delivers the grain to a discharge point at the perimeter of the dryer.
unloading systems
commercial plumbing Commerical Plumbing
Commercial block and bleed gas train is standard with high & low gas safety pressure switches.


Quantum Controller
Brock’s advanced QUANTUM® Dryer Controller comes standard and automatically regulates the drying process.





Who We Are:

John Ernewein Limited is locally owned and operated, serving Southwestern Ontario with over 50 years of industry experience. One of the largest independently owned Agricultural & Commercial Contractors and Grain Handling & Storage dealers in Ontario.

From initial design to project completion, our General Contracting staff work directly with our customers to ensure their satisfaction. On site, our experienced construction supervision ensure that your individual specifications and needs are being met.

Quality grain handling & storage products and services are the foundations of our grain bin business. We are committed to supplying you, our valued customer with proven and tested solutions, through our experienced sales and service staff.

Let us show you how 50 years of experience can work for you!