WHITE PAPER - Choosing the Correct Automatic Hopper Door Opener
AutoTrap™: The Compact, High-Performance Electric Hopper Opener
Upgrade your grain trailer with the AutoTrap electric hopper opener, engineered with the best of Shurco SMARTrailer™ technology. This compact, high-clearance system delivers premium performance at an affordable price, featuring SMARTwire™ patented connections and full compatibility with ShurLink App, ShurLink PRO™ and ShurLink EZR™ remotes for effortless wireless control.
Designed with a thru-bore motor, AutoTrap matches the torque and efficiency of our industry-leading ProTrap® system, but in a unit that’s nearly 40% lighter. The sleek, space-saving design simplifies installation and enhances clearance.
One-bolt manual conversion for added reliability
Protective polymer sleeve prevents corrosion between the drive shaft and motor
Universal crank shaft fit: Works with 1", 7/8", and 3/4" shafts
Control your electric hopper doors wirelessly using pre-programmed ShurLink App, PRO or EZR remotes, both equipped with SMART-touch technology for real-time precision. For backup, push-button controls at each opener are included.
The AutoTrap system is available in 1-hopper to 4-hopper configurations and can be integrated with 4500 Series HD electric tarps for full electric trailer automation. Preassembled for quicker installation, the AutoTrap is your go-to solution for modern grain hauling.
SMARTwire technology for simplified, secure connections
ShurLink PRO remote: 2-way communication with digital display
Easy installation with preassembled components
Rugged design built to handle harsh agricultural environments
Durable All-Metal Gear Motor
Engineered for strength and long-lasting performance in demanding conditions.
Integrated Rock Shield Protection
Built-in shield deflects debris and protects motor components from wear and damage.
Thru-Bore Motor Design
Compact and efficient layout allows for a streamlined installation and maintenance process.
Protective Polymer Motor Sleeve
Weather-resistant sleeve adds an extra layer of protection against moisture, dust, and debris.
Heavy-Duty Thru-Bore Manual Drive Shaft
Features a precision 3/4" hex milled end for reliable manual operation when needed.
Universal Mounting Bracket
Fits a wide range of trailer and truck configurations for maximum installation flexibility.
Crank Shaft Adapter Kit Included
Allows for seamless connection and manual operation as backup.
1-Bolt Manual Changeover System
Quick and simple transition from electric to manual operation in emergency situations.
Emergency Backup Crank
Ensure uninterrupted tarp control even during power loss or motor failure.
SMARTwire Sealed Wiring Harness (Patented)
No wire stripping or crimping needed. SMARTwire features molded rubber connectors, dual 6-gauge wires, automotive-grade silicone seals, and precision-machined brass pins and sockets for quick, secure installation.
ShurLink App, PRO and ShurLink EZ™ Remotes
ShurLink App Enables system setup, torque adjustments, and operational settings and customization from a mobile device, featuring the industry’s only system designed for future firmware updates
Control your Shurco electric tarp system with SMART-touch technology. ShurLink PRO offers intuitive, 2-way communication and a clear digital display for real-time feedback and control.
Follow the chart below to help in determining proper motor selection when selecting your electric hopper door openers. Both Shurco's AutoTrap and ProTrap motors are rated torque loads over 230 foot-pounds. The load on the hopper must NOT exceed the torque needed in manual operation.
| AutoTrap | ProTrap | |
| FARM TO MARKET USE | X | X |
| COMMERCIAL/CO-OP USE | Not Recommended | X |
| HAULING COMMODITY GRAIN | ||
| Corn, Wheat, Soybeans, Rice | X | X |
| HAULING HIGH-DENSITY MATERIALS | ||
| Smooth River Rock | Occasional Use | X |
| Fractured Rock | Not Recommended | X |
| Concrete Construction Waste | X | |
| Fly Ash (Compacted) | X | |
| Fertilizer | Occasional Use | X |
| HEAPED LOADS | ||
| Light to Moderate | X | X |
| Moderate to Heavy | Based on Material | X |
| HOPPER DOOR SIZE | ||
| Standard - Up to 1,200 Sq. In. | X | X |
| Oversized - Over 1,200 Sq. In. | Based on Material | X |
| HIGHER GROUND CLEARANCE | X | |
| COMPACT/LIGHTWEIGHT | X |
Smart Choice Series, Volume 1 | October 2025
Choosing the Correct Automatic Hopper Door Opener
