602 companies / 2625 products


Door Demon Hopper Trailer Opener - HTO

  • The HTO is designed to prevent user injury and ergonomic issues while opening trailer hopper gates/traps
  • Speed and torque designed to open trailer hopper gates efficiently but with complete control
  • Lightweight and air powered with smooth continuous torque
  • Patent pending shaft, quick change sockets and manual locking mechanism


Hopper Trailer Opener Promotional Video

Our customers made it clear that they needed the flexibility of a handheld unit with enough torque to get the job done, but not too much to avoid damage to the hopper trailer gate components. Rotation speed was also a critical factor, as the user needed to open the gate in an efficient, yet controllable manner. Weight was crucial as the unit had to be light enough for the user to operate it all day long. The new Patent Pending Door Demon Hopper Trailer Opener (HTO) combines all of those requirements into a feature-rich, powered unit with a custom shaft and interchangeable sockets designed for the task at hand.



Arnold Co.

Arnold Co. manufactures a full line of rail car door openers for hopper gates, freight cars and plug door types.

Learn More

To request more information please fill out the form below. A Feed and Grain team member will help connect you with the right representative at Arnold Co..


Marketwatch: Jan, 25

US Corn Price Idx: ZCPAUS.CM

open: 5.9845
high: 6.0765
low: 5.9569
close: 6.0712

US Soybean Price Idx: ZSPAUS.CM

open: 13.5198
high: 13.623
low: 13.3854
close: 13.5849

US Hard Red Winter Wheat Price Idx: KEPAUS.CM

open: 7.7845
high: 7.9894
low: 7.7694
close: 7.9771

US Soft Red Winter Wheat Price Idx: ZWPAUS.CM

open: 7.4426
high: 7.6199
low: 7.4051
close: 7.6001