UNDERCUTTING WITH EXCAVATORS AND BACKHOES
The DymaxRail Ballast Blaster undercutter attachment features advanced patented design and durability. A Ballast Blaster undercutter efficiently removes fouled ballast rock and mud by cutting and pulling the material out from beneath the railway tracks. This attachment adapts to railway excavators and backhoe loaders equipped with a tiltrotator coupler system.
BLASTER WEAR PLATES
Our patented Ballast Blaster Undercutter features bolt-on indexable wear plates with full carbide protection that surrounds all sides of the cutter bar and includes a 2 year warranty.
BI-DIRECTIONAL CUTTING
A DymaxRail Ballast Blaster cuts and removes ballast faster with its innovative chain design. The Dymax Carbide Tooth (DCT) features two-sided protection, allowing operators to cut in both directions.



For 8T Excavators and Backhoe Loaders
For 12-36T Excavators
Carbide replaceable wear plates and mechanical chain tensioner
Carbide wear plates and automatic chain tensioner
AUTOMATIC CHAIN TENSION
- For 13-36T models including 10, 12 and 15 foot cutter bar lengths.
- Provides shock absorbing performance to increase chain life and reduce chain breaks.
- Includes tensioner gauge for visual recognition of chain tension pressure.
DRIVE MOTOR PROTECTION
- Full shroud protection around drive sprocket.
- Reduces seal contamination by keeping unwanted debris out.
- AR400 wear plates provide additional wear protection.
SERVICE. SIMPLIFIED.
When it’s time to service, it’s quick and easy with the removable top adapter.
Does your machine have a pin grab coupler? Learn more about the DymaxRail Pin Grab Coupler Undercutter. →
BALLAST BLASTER UNDERCUTTER FOR TILTROTATOR COUPLER
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