The GO-A13-HA features a controllable speed of 100 to 1,400 RPM, and a no-torque reaction, self-regulating power output of 1,000 to 13,000 ft-lb. Will open any gate in < 8 seconds!

The WORKMASTER® GO-A13-HA is an air-powered Hopper Car Gate Opener on a wheeled-cart with pneumatic control of both its pivot wheels (to follow traveling gate or moving train), and height adjustment (to accommodate varied height capstans).

The GO-A13-HA Hopper Car Gate Opener is the wise choice for worksites which experience:

  • Railcars with gates that vary from easy-to-open to extremely-difficult found on cars not well maintained or regularly repaired;
  • Railcars with either fixed position or traveling gate mechanisms;
  • Rough or uneven trackside terrain making Opener maneuverability an issue;
  • Railcars with varied height capstan / gate mechanisms;
  • Railcars in long train units which require rapid opening / closing during continuous movement.
GO-A13-HA Hopper Car Gate Opener Features

Ergonomic Controls

Ergonomically positioned self-closing, speed control throttle; positive on/off pivot wheel switch; forward/reverse air motor lever arm; height adjustment lever controls easy to reach and operate.


Reduces maintenance while guaranteeing critical wear components receive regular lubrication in the correct amount.

Oil Caddy & Tool Storage Unit

Opener shipped with 1-Qt TOOL LUBE™ Air Motor Oil to make lubrication fast and easy. Tool Storage Container holds available drive extensions.

Dual Air Cylinders

Heavy-Duty, smooth-lift type to enable thousands of rapid, lever controlled, lift / lower height adjustment cycles with minimal maintenance.

Capstan Drive Fitting

Precision machined, 4140 tool steel, 1-piece construction with 1-1/2″ sq socket using pin & ring retainer opens hundreds of gates.

Air Powered Pivot Wheels

2-postition toggle switch allows oversized, flat-free, solid tires to pneumatically pivot 90° to follow capstan movement on traveling gates.

Opens Even the Most Jammed Gates

Self-regulating, no-torque-reaction output of 1,000 to 13,000 ft-lb to open even the most jammed gates in < 8 seconds.

Won't Rust or Corrode

Baked-on powder coat finish prevents rust and corrosion caused by weather and harsh conditions.

Air-Powered Driver Motor & Controls

Eliminates explosion, electrical shock, and hydraulic fluid leaks and burns. Also provides instant start/stop operation.

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    GO-A13-HA Hopper Car Gate Opener Specifications


    GO-A13-HA Height Adjustable Gate Opener with Pivot Wheels


    Pneumatic; Requires 148 CFM @ 85 PSI (Free); 114 CFM @ 85 PSI (Impacting)

    Working Torque

    1,000 to 13,000 ft-lbs; Recoilless, Self-Regulating at 1,400 RPM

    Wheel Assembly

    16″ Dia with 4.80 / 4.00 – 8″ Flat-Free, Solid Polyurethane Tires, Ribbed Tread

    Frame Dimensions

    40″ D X 42″ W X 44″ H

    Handle Width

    29″ W

    Height Adjustment

    Pneumatic Adjustment: 10″ to 24″

    Tool Container

    5″ L X 12″ W X 6″ D

    Lubricator Capacity

    16.0 oz; Adjustable Flow

    Inlet Coupling

    Universal Coupling (Chicago Type) with Safety Lock Pin

    Finish Coating

    Baked-On Powder Coat Finish


    • Drive Fitting with Pin & Ring Retainer
    • One (1) Qt TOOL LUBE™ Air Tool Oil
    • Operating Video
    • Operators Manual

    Gate Opener Weight

    361 lbs

    Shipping Weight

    520 lbs