4018-03-L
BullFrog Straddle Type Rerailer 90-142 lbs. Rail – Left
BullFrog straddle rerailers use armor-grade steel plate and broad tie-bearing surfaces to support rerailing of standard-size freight cars and locomotives.
A MAS brand
Rail yard equipment, ready for the job.
Chocks, derails, rerailers and rail skates for industrial sidings, maintenance tracks and loading operations. Find the model, confirm the fit and request a quote.
Manufacturer model numbersProduct selection helpMulti-item quotes
BUILT AROUND YOUR TRACKReal equipment. Clear specifications.Compare wheel chocks →
Find the equipment your yard needs
Browse manufacturer models by the job they do. Compare rail fit, operating limits and available configurations, then send one request for the equipment you need.
Railcar wheel chocks
Steel and urethane models for exposed or flush rail.
Railroad derails
Portable, hinged and sliding track protection.
Rerailers
Straddle, BullFrog, Burlington, McCarty and diamond.
Stops, skates & skids
Compare car stops, chocking skates and bumping posts.
Truck wheel chocks
Wheel blocks and handle options for loading docks.
Signs & accessories
Derail signs, locks, shims and replacement parts.
Equipment worth a closer look
Start with these Aldon models, then compare the full range for your track and operation.
4011-06
Double Railroad Wheel Chock with Flag (Exposed Rail)
Aldon’s double steel wheel chock for exposed rail uses a replaceable traction spur to grip the rail while securing a freight car…
4014-08-S
Portable Two-Way Locomotive Derail
A SaberTooth portable two-way derail for freight cars and four- or six-axle locomotives.
4016-10
S-61 Standard Duty Rail Skate (Exposed Rail)
A standard-duty flat-top rail skate for slowing one freight car at a time on level exposed track.
4011-01
Single Railroad Wheel Chock with Flag (Exposed Rail)
Aldon’s single steel wheel chock for exposed rail uses a replaceable traction spur to grip the rail while securing a freight car…
From model selection to a clear quote
Know the task. We will help with the equipment.
Choosing a chock, derail or rerailer starts with the actual track and rolling stock. Tell us what you are working with—even if you do not yet know the model number.