Factory Cooling Requirements: 10,000 m3/h 24 Inch Industrial Drum Fan

Space and Power Limits for Factory Cooling

The customer needed a reliable 24 inch industrial drum fan. They plan to cool workers on a large factory floor. The plant runs heavy gear. This creates hot spots that need fast cooling.

Plant managers set strict rules for new equipment. First, the 24 inch industrial drum must move a steady 10,000 m3/h of air. This high airflow pushes cool wind deep into the work zones. The electrical supply was standard.

We had to use the local 220-240V AC power grid. Furthermore, the frequency was fixed at 50/60 Hz. Next, floor space is very tight in this plant. Workers need clear aisles to move parts carts.

Instead of a large fixed unit, the fan must fit small gaps. The design limits were very strict. In short, maximum width is exactly 755 mm. Total height must stay under 800 mm.

By contrast, depth cannot exceed 260 mm. Finally, the 24 inch industrial drum had to meet these hard numbers to pass plant inspection. Furthermore, operators also needed to point the air safely. So, they asked for a full 360-degree pitch tilt.

A harsh factory floor breaks plastic parts fast. Therefore, metal construction was the only choice. We selected a full metal body and a thick steel bracket. Designers test fans like this to standard AMCA 210-16 methods. Electrical safety must also meet strict IEC/EN 60335 limits.

Engineering the 24 inch industrial drum fan

We had to design the 24 inch industrial drum fan with great care. The huge 10,000 m3/h air volume creates strong wind forces. We looked at different fan blade styles to find the best match. First, we ruled out cheap molded plastic blades.

Plastic cracks if dropped tools hit the guard mesh. Instead, we chose a three-piece aluminum fan blade set. Metal blades weigh much more than plastic. Consequently, the motor needs a stronger steel shaft to hold the heavy parts.

Next, we matched this setup with heavy bearings. The metal parts ensure years of safe running on the busy floor.

Motor Design and Power Draw

Next, we picked the drive motor to spin the blades. However, EC motors save power but cost much more upfront. The customer just wanted a simple and local unit. Instead, we chose a tough AC motor for the job.

Furthermore, we used 100 percent pure copper wire inside the motor. Copper handles heat much better than cheap aluminum wire. This motor runs perfectly on the raw 220-240V power grid. Next, we gave the motor three distinct speed settings.

High speed turns the blades at 1360 RPM. It uses 166 W of power. Meanwhile, medium speed spins the blades at 1280 RPM. It draws a lower 142 W.

Finally, low speed turns the system at 1160 RPM. It drops the power draw to just 126 W. The lower speeds cut down wind noise for close work. Therefore, workers can pick the exact right speed for their shift.

Chassis and Mounting Structure

Finally, we designed the heavy metal frame to hold everything. First, we picked a U-type base shape. It holds the fan low to the ground for balance. Next, we added strong pulley wheels to the base tube.

Consequently, workers can roll the heavy unit safely across rough floors. First, we built a 360-degree pitch bracket to aim the air. Furthermore, this bracket adds slightly to the total unit depth. It pushes the final depth out to exactly 260 mm.

However, it completely protects the inner fan from bad hits. In short, the strong bracket makes the fan perfectly safe. The extra weight is a clear trade-off we gladly made.

Technical Specifications

First, the table shows all measured testing limits. The three speeds give floor workers excellent daily control. Low speed cuts the input power down to just 126 W. Meanwhile, high speed hits the full 10,000 m3/h volume target. Therefore, the 755 mm width keeps the fan safely inside the aisle markings.

Reference: IEC 60529 covers the test method behind these figures.

Technical Documentation

Next, this catalog sheet lists the main build facts. Furthermore, buyers can read about the pure copper wire and metal bracket.

Engineering Drawing and Dimension Sheet
Next, the drawing shows the exact outer size limits. Consequently, plant engineers use this file to check safe aisle space.

Specifying Your Own Factory Unit

First, engineers planning a similar 24 inch industrial drum fan must measure carefully. Next, you should check a few main points before you buy.

• First, measure the narrowest path on your plant floor. The 755 mm overall width of this unit is a hard limit. Consequently, if your aisles are tighter, the unit will block fast carts.
• Second, ask the floor workers about local noise rules. A single-speed fan runs loud all day and bothers people. Instead, a multi-speed AC motor fixes this problem easily. Furthermore, it gives you lower noise without the high cost of an EC drive.
• Next, check what your factory floor is made of. Rough concrete floors will break cheap plastic wheels very fast. Therefore, always ask for a strong U-type base with tough pulley wheels.
• Finally, send your exact size limits to the builder early. Longwell makes impellers directly in our own metal factory. Consequently, we can change the blade shape fast during initial tests.

Related: Commercial Fans and Blowers.

Common Engineering Questions

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