Complete unit
A matched excavator upper structure, straddle undercarriage, platform, hydraulic and electrical routing, and working attachment are supplied and commissioned together.
Reach / push / load
20 t class high-clearance straddle excavator
Railway Wagon Unloading Gantry
A four-leg, twin-crawler straddle undercarriage raises a tracked excavator above an open railcar for direct transfer of coal, ore and other free-flowing bulk material into a haul truck.
Key range13–22 t tracked host excavators · Reference passage 4.2 m W × 4.2 m H
Working brief
Railcar to truck. Nothing in between.
The load-bearing gantry deck carries the excavator upper structure above the wagon and leaves a clear passage below. From one elevated working position, the operator can see into the car body, enter the bucket vertically and discharge directly into the waiting truck without first building a ground stockpile.
Typical applications
- Railcar unloading
- Coal and ore handling
- Direct wagon-to-truck transfer
Configuration inputs
- Required clear passage height and width
- Railcar profile, track centers and overhead clearances
- Track gauge, crawler route and available working envelope
- Host excavator make, model, operating weight and center of gravity
- Material, target cycle, truck position and working attachment
01Direct transfer
Unload the wagon and load the truck in one handling step.
02Elevated visibility
See the bucket, remaining material and truck bed from above.
03Mobile installation
Twin crawler assemblies move the machine along the train.
In operation
SEE THE SYSTEM IN MOTION.
Project footage shows the mobile straddle platform and direct unloading work from above the railcar.
Reference configuration
KEY DIMENSIONS AND BUILD BASIS.
- Clear passage
- 4.2 m wide × 4.2 m high (reference)
- Overall length
- 6.2 m (reference)
- Host excavator
- 13–22 t class, tracked
- Gantry structure
- Four-leg straddle frame
- Travel system
- Twin crawler assemblies
- Deck
- Load-bearing platform with walkway and handrails
- Attachment options
- Bucket, clamshell or custom front
- Material
- Coal, ore and other free-flowing bulk material
Supply options
COMPLETE UNIT, OR YOUR EXCAVATOR ON OUR UNDERCARRIAGE.
Retrofit undercarriage
A transition base, straddle undercarriage and interface package are engineered around the verified parameters of an excavator the buyer already operates.
All dimensions shown are reference values for enquiry-stage discussion. Final passage, length, gauge, weight, compatibility, performance and scope of supply are governed by the project technical agreement.
How does the railway wagon unloading gantry work?
A four-leg gantry raises the excavator upper structure above the open railcar while leaving a clear passage underneath. The bucket enters from above and transfers coal, ore or another suitable free-flowing material directly into a truck.
What excavator size can be used on the straddle undercarriage?
The published reference range is a 13–22 tonne tracked host excavator. Final matching requires the exact machine model, operating weight, center of gravity, slew interface, hydraulic data and the required working envelope.
Are the 4.2 metre passage dimensions fixed?
No. The 4.2 m clear width, 4.2 m clear height and 6.2 m overall length describe one reference configuration. Each gantry is dimensioned around the buyer’s railcars, track centers, overhead clearance and site layout.
Can PINSHENG convert an excavator the buyer already owns?
Yes, subject to engineering review. The retrofit option includes a transition base, straddle undercarriage and interface package after the host machine’s structure, weight, center of gravity, hydraulic system and controls have been verified.
How much can direct railcar-to-truck unloading improve output?
The brochure cites a target gain of 50 percent or better in combined loading efficiency for a project reference. Actual output depends on the material, travel and swing distances, truck availability, wagon geometry and operator experience, so it is not a guaranteed production rate.
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PLAN DIRECT RAILCAR-TO-TRUCK TRANSFER AT YOUR SITE.
Share the carrier, working material and jobsite requirements. We will review the machine match and required configuration before preparing a project quote.