Arnold Company: Logo Arnold Company
2955 Trico Drive
Trenton, Illinois 62293
(800) 245-7505 (USA only)
(618) 224-7505
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Home » Hopper Gate Openers » "Dragon Fly" - Beam Mounted Door Demon®
"Dragon Fly" - Beam Mounted Door Demon®
QUICK DESCRIPTION: The "Dragon Fly" is a pneumatically (air) powered traversing beam mounted unit that features a manually set height adjustment for varying capstan heights.

Approximate Lead Time: 2 - 3 weeks
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Dragon Fly - Air Beam Mounted Door Demon
Figure 1. "Dragon Fly" - Beam Mounted Door Demon®

Our “Dragon Fly” beam mounted pneumatic powered opener offers a permanent and powerful solution for opening your toughest hopper gates safely and productively. The unit mounts to a heavy duty “sled” which easily slides back and forth on a 6” beam (beam not included). The standard manual lift mechanism allows the user to choose from 9 different height positions and the shaft is telescoping with one universal joint. This combination provides maximum flexibility to meet almost any requirement.

The air motor operates best at 70 CFM @ 90 PSI using a ¾” line. The air motor drives a gear box providing heavy duty continuous torque to the power shaft which turns the railcar capstan. The unit is equipped with an airline filtration and lubrication system and also comes with an extension shaft and drive bit. The standard shaft length is 26” long, but custom shaft lengths are available upon request.

Key Safety Features
When Safety Matters...Choose a Door Demon Safe, Single-person Operation
Helps Prevent Employee Injuries
Powder-coated "Safety Yellow" for Increased Visibility
Removes Workers from Under Railcars During Unit Operation
Drive Controls Return to Neutral/Stop Upon Release
Stable Platform Allows for Predictable Performance
 Click HERE to compare the safety features of all of our units.
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Arnold Company • 2955 Trico Drive • Trenton, Illinois 62293 • (800) 245-7505 • (618) 224-7505 •
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