Grain Conditioning Systems

Fans

Count On Chief’s 45-Plus Years of Experience

The Chief company offers customized grain aeration systems tailored to meet your precise requirements. Caldwell fans are meticulously engineered to deliver exceptional performance, dependable operation, and worldwide recognition for their superior quality. They prioritize safety, reliability, and aesthetic appeal, ensuring an all-around satisfying experience.

Call Poland Steel today for more information.

Caldwell Fans

With an impressive manufacturing history spanning over 45 years, Caldwell fans and heaters embody qualities of safety, reliability, and visual appeal. Their extensive experience guarantees optimal system performance, trustworthy service, and global recognition.

• Galvanized housings
• High-quality brand-name motors
• Come in 230-, 460-, or 575-volt 60 Hz, and 380 volt 50 hz applications
• PAMI tested
• Meet OHSA standards

Axial Fans

Axial fans from Caldwell range in diameter from 12" to 28".

• 3500 RPM @ 60 hz operation
• Single and three-phase TEAO motors with horsepower from 0.75 to 12.5
• Heavy gauge galvanized housing to last

Centrifugal Fans

For commercial or farm use, centrifugal fans operate quietly and can easily be upgraded with heaters.

• Air delivery at up to 24" Static Pressure for deep grain applications
• 1750 RPM/3500 RPM @ 60 hz and 1450 RPM/2900 RPM @ 50hz
• Wheels from 15" to 40" diameter
• 3 to 100 Horsepower
• Single and three-phase TEFC motors, PTO units available
• 230v models are pre-wired for heaters

In-Line Centrifugal Fans

Caldwell's in-line centrifugal fans are ideal for medium to high static pressures and can be easily modified with low-temperature heaters in the field.

• Heavy gauge galvanized housings from 14" to 28"
• Wheels from 10" to 20"
• 1 to 15 Horsepower
• Single and three-phase ODP motors

Heaters and Transitions

Heaters

Heaters from Caldwell are designed to work with axial, centrifugal, or in-line fans. There are upstream and downstream models of Caldwell heaters that run on natural gas, liquid propane, or vapor propane.

• Heavy gauge galvanized housings built to last
• High and low-temperature configurations
• Easy access service door and control box
• Nine models of electric humidity controllers

Transitions

Designed to reduce turbulence, the Caldwell transitions have galvanized housing.

• Offer maximum airflow
• Shipped fully assembled for faster installation
• Form a tight, dependable seal

Floors

Floors Caldwell Flush Floor Systems

Caldwell Flush Floor Systems are individually tailored for every unique use. Select from a range of options including a panel grate system, corrugated sheeting system, or Channellock plank system, all designed to suit your specific requirements. These systems come in various sizes, with widths up to 10', and feature perforations to allow unimpeded airflow.

Caldwell also offers custom designs to ensure optimal airflow. For heavier loads, panel grates with I-beam supports, featuring a perforated web, are available. These flush floor systems are manufactured with modular components, making installation a breeze.

Full Floor Systems

Caldwell Channellock floor systems are designed to preserve the optimal quality of your grain. All Channellock floor planks are constructed from galvanized steel and manufactured with meticulous precision to ensure a proper fit, structural integrity, and adequate airflow.

The floor systems offer two perforation sizes (0.094" or 0.050") to accommodate the specific drying and conditioning needs of your commodity. The 0.094" perforated floor planks are available in 16-, 18-, or 20-gauge material options, allowing Caldwell floors to handle grain depths of up to 110 ft.

To support the floors, you have the choice of airframe or Channellock supports, suitable for both 13" and 17" floor applications. Channellock supports are made of 16- or 18-gauge galvanized material, providing reliable reinforcement.

Perforated Flooring

The Best Drying System for a Stronger Floor

Chief holds the sole distribution rights for Perforated Flooring in all available sizes. When combined with Chief Bins and Caldwell Fans, this comprehensive system ensures swift installation and long-term preservation of your grain.

Perforation Sizes

In regions where canola or other small seed crops are included in the crop rotation, the 0.050" perforated flooring option is widely favored for flat bottom bins. This flooring type boasts an open area of 15.69% and is ideal for efficient aeration.

For the effective cooling and drying of corn, sunflowers, and other large seed crops, the 0.094" floor is the optimal selection. With an additional 16.75% open area, the 0.094" flooring facilitates the circulation of a substantial amount of hot air at an affordable cost.

Our floors feature shallower corrugations, which greatly simplify the process of cleaning out your bin. Unlike other floors with deeper corrugations that make bin sweeping more challenging, our design allows bin sweeps to thoroughly clean the floor. With other floors, grain tends to get trapped and pushed down, resulting in extended sweeping time. Our all-sizes flooring, on the other hand, ensures a quick and straightforward cleaning process.

Syntiro Support

The Syntiro support system represents the latest advancement in aeration floor support technology. Its rapid connections and extensive spans ensure a swift and effortless installation process. Engineered to optimize airflow efficiency, the Syntiro system requires only half the usual number of support rows.

Despite the reduced number of supports, the all-size floors supported by Syntiro can withstand significantly greater loads compared to similar support systems. Following installation, the flooring seamlessly rests on the support without the need for snapping, resulting in quicker installation times. The supports are 11 5/8" tall, providing ample space for auger tunnels.

One of Syntiro's noteworthy features is its locking mechanism, which enables swift connections and imparts strength and stability without any movement. When overlapping supports, our spring steel clips securely hold them together. The clip-on features jagged teeth that firmly grip the metal, ensuring a secure lock that prevents accidental detachment during installation.

Finish It Off

The ribbed flashing, available in a 20" size, is designed to accommodate smaller diameter bins with a splice and larger bins without a splice. The presence of perforated ribs ensures consistent airflow and provides extra strength when using a bin sweep.

The "T" track flashing serves as a connection between your all-size floor and any flat surface, such as auger clean-out tunnels and pits.

Grain Depth Capacity: 110 Ft (33.52 M)

Floor Perforation Sizes per Gauge:

• 20 Gauge
• 0.094" (0.24cm)​
• 0.050" (0.13cm)
• 18 Guage
• 0.094" (0.24cm)​
• 0.054" (0.14cm)
• 16 Gauge
• 0.094" (0.24cm)

Floor support options:

• Airframe design
• Channellock design
• 13" (33.02cm) floor depth​
• 17" (43.18cm) floor depth
• 16-gauge galvanized material
• 18-gauge galvanized material

Vents and Ducting

Industry's Most Complete Exhaust Line

All vents install easily and are designed to minimize build-up of ice and foreign material.

Vents

• Gooseneck bin vent: 2670 CFM (4536m3/h) hooded bin vent is 20% larger than standard hooded vents. Installations are quick and easy with pre-punched roof panels.
• Mushroom vent: 3750 CFM (6371m3/h) Caldwell mushroom bin vent is 42.8% larger than regular hooded vents. A rain and snow diverter offers optimum moisture control.
• Roof exhausters: 18" 4000 cfm (6796m3/h) and 24" 10650 cfm (18094m3/h) (458mm to 610mm) roof exhaust fans available.

Ducts

Caldwell offers a wide range of grain conditioning ducts for farm and commercial use, including custom designs. Caldwell provides layouts for aeration installations.

• Flush floor Y system
• Flush floor straight run
• Annular corrugated duct
• Spiral corrugated duct
• Smooth wall round perforated duct in Y system
• Smooth wall round perforated duct in a straight run