Skip to main content

Rail yard safety equipment | Bulk quotes | Product selection help | A MAS brand

A MAS brand
4011-44

Manufacturer photos. Review the selected model and configuration when requesting a quote.

Aldon equipment

Spark-Proof Urethane Double Wheel Chock for 12″-24″ Wheels-Flush Rail

Model / part 4011-45

A compact, non-sparking urethane double chock for powered railcar movers with flanged steel wheels from 12 to 24 inches in diameter.

Get the right equipment for your application.

Add this item to your list or send us a question. Include the quantity and rail details you have available.

Review your quote list →

Product details

A compact, non-sparking urethane double chock for powered railcar movers with flanged steel wheels from 12 to 24 inches in diameter. Fiberglass handles provide a light handling point; exposed-rail and flush-rail versions are available.

Features and application limits

  • Handle length: 10.75 in.; product weight: 3 lb.
  • For rail sizes 90–141 lb/yd.
  • Place against the flanged steel wheel, not a rubber tire.
  • Use only on level, clean rail with the vehicle brake set. Do not use on grades or oily/greasy rail.
  • The supplied rubber cord is required for correct tension; replace it if missing. Keep hands and fingers clear of wheels and allow head clearance.

Use the current manufacturer instructions and your facility’s procedures for installation, inspection and operation. Ask us to confirm the selected model against your application.

Continue comparing

Related equipment

One coordinated industrial network

Operated and supported by Modular Access Systems LLC.

Canonical product and procurement source for broad rail-yard safety equipment.

About the Modular Access Systems network

Product selection & quotes

Tell us what your yard needs.

Send a model number, an equipment list or a short description of the job. We will help you work through the options.

  • Chocks, derails, skates and rerailers
  • Replacement parts and accessories
  • Single-location and multi-site requests

We use your details to respond to your request. Privacy policy

Explore the MAS brands

Specialist products. One Modular Access Systems family.