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Railcar Chocks and Stops

A single gust of wind can be enough to set a 285,000-pound freight car in motion, making railcar wheel chocks a critical safety measure in any rail yard or repair facility. As an authorized Aldon distributor, we offer a full range of railcar wheel chocks designed for fast and secure blocking of all railcar types. Manufactured by Aldon, these chocks feature rail-biting steel spurs for maximum holding power and are available in styles for both exposed and flush rails.

Choose from cast steel railcar wheel chocks, rail-clamping wheel blocks, or the newly introduced urethane railcar wheel chocks—all designed to enhance worker safety and meet OSHA regulations 1910.110(15), 1910.11(13), and 1910.110(A)(5). These chocks effectively prevent unintended railcar movement during loading and unloading operations, ensuring a safer work environment.

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Railcar Chocks and Blocks

Single Railroad Wheel Chock

The Single Railroad Wheel Chock for flush mount or exposed rail is constructed from durable all-steel materials and features a replaceable rail-biting spur to securely hold freight cars and locomotives on exposed tracks. It is compatible with train rails ranging from 75 lbs./yd. to 141 lbs./yd. and supports wheel diameters between 28″ and 44″. The traction spur can be rotated to a new edge or replaced when dulled, extending the product’s lifespan for continued reliable performance.

Single Railroad Wheel Chock Attributes
  • Wheel diameters 28″ – 44″
  • Rails from 75 lbs./yd. to 141 lbs./yd.
  • Replaceable traction spurs
Single Check With Flag
  • Handle length: 28″
  • Options:
    • Exposed Rail (Pictured)
    • Flush Rail
Single Chock
  • Handle length: 12″
  • Options:
    • Exposed Rail
    • Flush Rail (Pictured)

Double Railroad Wheel-Chock flush mount with flag

Double Railroad Wheel Chock

The Double Railroad Wheel Chock for flush mount or exposed rail is constructed from durable all-steel materials and features a replaceable rail-biting spur to securely hold freight cars and locomotives on exposed tracks. It is compatible with train rails ranging from 75 lbs./yd. to 141 lbs./yd. and supports wheel diameters between 28″ and 44″. The traction spur can be rotated to a new edge or replaced when dulled, extending the product’s lifespan for continued reliable performance.

Double Railroad Wheel Chock Attributes
  • Wheel diameters 28″ – 44″
  • Rails from 75 lbs./yd. to 141 lbs./yd.
  • Replaceable traction spurs
Double Check With Flag
  • Handle length: 28″
  • Options:
    • Exposed Rail (Pictured)
    • Flush Rail
Double Chock
  • Handle length: 12″
  • Options:
    • Exposed Rail (Pictured)
    • Flush Rail

Heavy Duty Wheel Chocks

Built with the same proven design as the standard wheel chocks, Aldon’s “Whack ‘Em” heavy-duty Duty Wheel Chocks offer enhanced durability for the toughest railcar loading and unloading conditions.

In certain situations, such as when working with tank cars, wheel chocks with steel spurs may become lodged under the wheel. “Whack ’Em” Chocks are designed to handle this challenge. Featuring reinforced steel handles, these chocks can withstand hammer blows or forceful sideways pulls to free them quickly and efficiently, ensuring uninterrupted operations.

Whack ‘Em Single
Railroad Wheel Chock w/Flag
  • Handle length: 28″
  • Options:
    • Exposed Rail
    • Flush Rail
Whack ‘Em Double
Railroad Wheel Chock w/Flag
  • Handle length: 28″
  • Options:
    • Exposed Rail (Pictured)
    • Flush Rail
Whack ‘Em Double and Single Chock
  • Handle length: 12″
  • Options:
    • Exposed Rail (Pictured)
    • Flush Rail

Ergonomic Wheel Chocks

Built with the same proven design as the standard wheel chocks, but with a longer handle (46″) for easier and safer positioning. Worker can stay clear of railcar when installing or removing these wheel chocks.

Ergonomic “A” Single Chock w/Flag
  • Handle length: 46″
  • Options:
    • Exposed Rail
    • Flush Rail
Ergonomic “C-1” Double Chock w/Flag – Flush Rail
  • Handle length: 46″
  • Options:
    • Exposed Rail (Pictured below)
    • Flush Rail

Spark-Proof Urethane Heavy-Duty Wheel Chock

Designed for one-direction chocking of tank cars and freight cars during the loading or unloading of hazardous materials, these urethane wheel chocks provide a safer alternative to steel chocks, eliminating the risk of sparks that could ignite dust or fumes.

Often called the “miracle material,” urethane offers exceptional load resistance while maintaining flexibility. It can compress to half its thickness under pressure and then spring back to its original shape, ensuring long-term durability. Unlike traditional materials, urethane resists corrosion, chemicals, and harsh environmental conditions, making it a reliable choice for demanding rail yard operations.

Features
  • Available in two versions: Exposed rail or flush rail.
  • Easy-grip design: Handles sit 1-1/2” above pavement when installed on flush rail.
  • Optimized height: Stands 4” above the rail, ideal for chocking locomotives.
  • Supports wheel diameters from 26″ – 44″
Urethane Heavy-Duty Double Wheel Chock
  • Options:
    • Exposed Rail (Pictured far left)
    • Flush Rail

Railcar Wheel Chocks Accessories

Railroad Chock Replacement Spurs

Replaceable Spurs give your chocks four times the life of any other chock.

Steel chocks from Aldon have featured replaceable spurs which bite into the rail to give the chocks extra holding power.. When the spur dulls from use, remove the spur and turn it to a new edge. Extend the life of your wheel chocks by turning the spurs three times … then order new spurs instead of new chocks!

Flashing Lights for Chocks

Barricade-style, 7 in. diameter shatterproof Lexan lens, uses two 6-volt batteries. Battery case bolts to light-bracket. On-off switch and photo-electric cell. Flashes 60 times/min. Weight 3 lbs.

Frequently Asked Questions

Why Use Railcar Chocks?

Railcar chocks are essential safety devices that prevent unintended movement during loading, unloading, and maintenance operations. They help protect workers by securing railcars in place, reducing the risk of accidents caused by unexpected movement, especially when brakes are released for servicing. OSHA regulations require their use in many rail yard and repair facility operations.

Why Use Urethane Wheel Chocks?

Urethane wheel chocks provide a spark-proof solution during the loading or unloading of hazardous materials, these urethane wheel chocks provide a safer alternative to steel chocks, eliminating the risk of sparks that could ignite dust or fumes.

Flush Mount Rail Tracks vs Exposed Rail Tracks

 Flush mount rails are level with the ground, while exposed rails are elevated above it, requiring different types of chocks for proper safety and stability.

Steel railcar chocks were successfully tested at the Association of American Railroad’s testing facility at Pueblo, Colorado, to withstand more than 25,000 lbs of drawbar pull. That’s roughly 32% of a typical SD-40 freight locomotive drawbar pull.

CAUTIONS

  1. For use on railroad car or locomotive wheels 28″-44″. Do not use on smaller or larger diameter or on other types of wheels.
  2. For rail sizes 75 to 141 lbs./yd.
  3. Set brake before installing chock. Chock alone may not hold car in place.
  4. Use 2 chocks per car being chocked.
  5. DO NOT install chocks while car is moving.
  6. Rail surface must be clean. Do not install this product on oily or greasy rail – product may slip.
  7. Spurs are important in holding chock to rail. Rotate spur when edge becomes dull. Replace spurs when necessary. Dull or missing spurs may cause chocks to slip.
  8. Do not use chocks on grades. If your track has a dip or a hollow, extra care must be taken to secure car.
  9. Chocks may not hold if rail car is lifted up at one end.
  10. Excessive vibration may cause a chock to slip.
  11. Keep fingers and hands away from car wheel. Watch your head!
  12. On double chocks, always use tarp strap (supplied with chocks) to draw chocks tight.