ZOOMRY
Product Overview
ZOOMRY Crawler Truck Unloader is a quayside drive-over hopper system purpose-built for direct truck-to-vessel bulk material transfer at ports and terminals. Dump trucks reverse onto the ramp and discharge into the receiving hopper — feeding mobile ship loaders or telescopic stackers without intermediate stockpiling or wheel loader re-handling. The crawler undercarriage moves independently along the quayside, repositioning between vessel holds in minutes without towing equipment.
Compared to our tracked truck unloader for soft ground mining and our wheeled truck unloader for aggregate stockyards, this crawler model is optimized for port and terminal ship loading — handling 200–3,000 TPH with belt widths from 650 to 1,600 mm and 2 or 4 truck ramps. For barge-specific applications, see our truck unloader for barge and ship loading.
How Truck-to-Vessel Loading Works
A dump truck arrives at the quayside and reverses onto the crawler truck unloader ramp. Material tips directly into the receiving hopper — the optimized grid filters oversize while the impact bed absorbs discharge shock. The belt feeder meters material onto the inclined conveyor, which transfers it directly into a mobile ship loader for vessel loading. The entire process eliminates the traditional two-step workflow of truck → stockpile → loader → ship loader, cutting per-truck cycle time and reducing material degradation from multiple handling.
Crawler vs Tracked vs Wheeled: Which Truck Unloader for Your Port?
| Feature | Crawler Truck Unloader (This Model) | Tracked Truck Unloader | Wheeled Truck Unloader |
|---|---|---|---|
| Primary Application | Port quayside — truck-to-vessel | Soft ground mining — truck-to-stockpile | Firm ground quarry — truck-to-stockpile |
| Downstream Equipment | Mobile ship loader | Stacker, crusher, conveyor | Stacker, conveyor |
| Mobility | Self-propelled crawler — quayside | Self-propelled crawler — mining | Towable by site tractor |
| Best Ground | Quayside — paved or unpaved | Soft, muddy mining terrain | Firm, level quarry floors |
Technical Components
Crawler Undercarriage for Quayside Mobility
- Heavy-duty crawler frame with maximum discharge height up to 5.8 m
- Super heavy duty track shoes for soft quayside ground
- Air brakes, directional lights, and mudflaps (optional)
- Hydraulic jacks for stabilized operation during truck unloading
Low-Position Receiving Hopper
- Customized hopper width from 3.5 m to 5.7 m to match wheel loaders, excavators, or grab cranes
- 5.0–7.5 kW electric/hydraulic power pack
- Optimized grid for aggregates and minerals
Heavy-Duty Conveyor Frame
- Belt width from 800 mm to 1,600 mm × length from 8 m to 20 m
- Heavy-duty frame reinforced for dump truck impact
- Belt speed from 1–4 m/s with screw-type take-up
Conveyor Belt
- EP conveyor belt: EP100 (5+4+2), EP200 (6+4+3) — same as used on long distance belt conveyors
- Site vulcanized splice for longer lifespan
- Ground-accessible controls; radio control optional
- 380–460 V, 3 phase, 50/60 Hz — customizable to site conditions
Drive System
- 300–2,200 TPH with dual 11 kW electric head-end drive (1,800 RPM, TEFC 3/60/460)
- FLENDER / SEW gear reducers; backstops included
- Drive pulley – 20" (508 mm) ceramic lagged with Haerbin® bearings
Idlers and Options
- Long-life ZOOMRY Conveyor idlers with impact idlers in load area
- Optional: Belt Cleaner, discharge hood, wireless remote control, hydraulic lift cylinder, landing jack, on-board diesel GenSet
Crawler Truck Unloader — structural overview for port and terminal ship loading
What Materials Can a Crawler Truck Unloader Handle?
The crawler truck unloader works with a wide variety of bulk materials commonly shipped through ports — coal, grains, fertilizers, iron ore, copper concentrate, bauxite, aggregates, woodchips, wood pellets, sulphur, and cement clinker. It can also serve as a receiving point for barge unloading via grab cranes or loaders, feeding the same conveyor system for downstream ship loading.
Key Advantages of Crawler Truck Unloader for Port Operations
- Eliminates double handling at the quayside — trucks dump directly into the hopper feeding the ship loader, preventing material degradation and reducing fuel costs
- Crawler mobility without towing — moves independently along the dock to serve multiple berths or vessel holds
- Shortens truck cycle times — dump-and-go in under 3 minutes vs 8–10 minutes with loader re-handling to stockpile
- Reduces material degradation — single transfer from truck to vessel eliminates intermediate stockpile and loader passes
- Works with grab cranes and barge unloading — dual-purpose receiving hopper for both truck and barge discharge
Related Equipment
Receives material directly from crawler truck unloader for vessel loading at any berth.
Specialized for barge and inland waterway vessel loading with 5.8 m discharge height.
Temporary quayside stockpiling when direct vessel loading is not required.
Industry Solutions
Complete quayside solutions — crawler truck unloaders, mobile ship loaders, and link conveyors.
Crawler truck unloaders for raw sugar receiving at port terminals with dust-controlled discharge.
Request a Quote for Crawler Truck Unloader
Tell us your quayside layout, truck fleet size, and vessel types. Our engineers will design a crawler truck-to-vessel loading system for your port or terminal.
Get a Quote
