DymaxRail’s Side Dump Rail Cart transports and dumps ballast or rip rap to either side of the track. Available in 8×24 and 8×40 configurations with removable side dump tubs and integrated stabilizers for safe dumping. Bolted connections allow quick removal, converting the cart for machinery and supply transport in minutes.
Key Features
- DymaxRail High Performance Machinery Cart: Available in 8×24 (25T) or 8×40 (40T) capacities featuring advanced stabilization, machinery loading ramps and side dump attachment to maximize your operational capabilities.
- Advanced Railgear: DymaxRail high performance railgear with specialized bogie design for smooth curve navigation on 8×40 models.
- Air Brake Systems: Designed for seamless integration with hi-rail trucks and railcar movers.
- Side Dump Attachments:
- 8×24 – Select (1) 16 to 21 foot side dump box
- 8×40 – Select (1) 21 foot or (2) 16 foot side dump boxes for max capacity.
- Hydraulic Power Unit: High performance power unit with variable pump for reduced dumping cycle time. Operate ramps, side dump attachment and stabilizers.

Hydraulic power unit
Removable side dump attachment
Stabilizers
Ramps
SIDE DUMP RAIL CART 8X24 – 25 TON

Electrical control panel
Hydraulic power unit
4 hydraulic stabilizers with bolt-on derail bars
Apitong wood deck
1 or 2 removable side dump boxes
Rear bogie with oscillation joint
SIDE DUMP RAIL CART 8X40 – 35 TON
Specifications
SIDE DUMP CART MODELS
| Group Number: Model Description Weight |
| 8451D1: DX-RC-MACSD-8ftx24ft-DMX-25TC
Side Dump Machinery Cart TRANSPORT SIZE: Width: 8 feet 4 inches / Length: 24 feet STANDARD FEATURES: Track Gauge: Standard 1435mm / 56.50 inches • 8 feet wide x 24 feet long • 25 ton uniform load rating • Two axle design; 16” Dymax Rail wheels • Non insulated railgear design • Heavy duty frame low profile • (4x) D rings tie down locations on each side • Air brakes with gladhand connections • Towing hitch on each end • Lift rings • (1x) 8 foot towbar with chain hook location • Rail sweeps • Solar powered directional lighting package with travel alarm and LED spot lamps • Gas power unit with variable speed pump • Standard machinery loading ramps • Steel deck plate • Hydraulic platform stabilizers with bolt-on derail guide • (1x) Side Dump Tub appx 21ft x 13.20 yd³ capacity – dual direction dump capable. Max Load Rating (US Tons): 25 Deck Height Off Rail (inches): 22.50 Weight (lbs): 16,500 with side dump installed |
| 7633D2: DX-RC-MACSD-8ft6x43-DMX-35TC
Side Dump Machinery Cart (Single Tub Mount) TRANSPORT SIZE: Width: 8 feet 6 inches / Length: 25 feet STANDARD FEATURES: Track Gauge: Standard 1435mm / 56.50 inches • 8 feet wide x 40 feet long; overall length 43 feet with power unit installed • 35 ton uniform load rating • DymaxRail rear navigation bogie with replaceable wheels + single axle • Non insulated railgear design • Heavy duty frame low profile • (8x) D rings tie down locations on each side • Air brakes with gladhand connections • Train air systems with railcar hitch and coupling (mechanical latch) • Towing hitch on each end • Lift rings • (1x) 8ft towbar with chain hook location • Rail sweeps • Solar powered directional lighting package with travel alarm and LED spot lamps • Gas power unit with variable speed pump for attachment applications • Control kit • Standard machinery loading ramps • Apitong Hardwood Decking • Hydraulic platform stabilizers with bolt-on derail guide. Max Load Rating (US Tons): 35 Deck Height Off Rail (inches): 23.35 Weight (lbs): 26,500 with side dump installed |
| 8452D1: DX-RC-MACSD-8ft6x43-DMX-35TC
Side Dump Machinery Cart (Twin Tub Mount) TRANSPORT SIZE: Width: 8 feet 6 inches / Length: 25 feet STANDARD FEATURES – SAME BASE TRAILER AS ABOVE (7633D2) – INCLUDES (2) 16FT SIDE DUMP ATTACHMENTS INSTALLED. Max Load Rating (US Tons): 35 Deck Height Off Rail (inches): 23.35 Weight (lbs): 32,000 with 2 side dumps installed |
Design and specifications are subject to change without notice.
All carts listed feature non-insulated railgear and are suited for standard gauge track 56.50 inches (1435mm). Custom solutions are available for narrow and wide track gauges. Contact DymaxRail Sales 1-800-530-5407 for special applications and options.







