W-Type Dry Bulk Powder Tank Semi-Trailer
The W-Type Dry Bulk Powder Tank Semi-Trailer is an advanced, high-capacity pneumatic discharge dry bulk transport trailer engineered specifically for the high-volume road haulage and automated fluidization discharge of high-density dry powder materials, such as Portland cement, fly ash, mineral powder, silica fume, and grain. Designed with a wide-body multi-hopper W-shaped tank configuration (featuring 2 to 4 independent internal conical hoppers), it maximizes volumetric capacity (ranging from 40 $m^3$ to 75 $m^3$) while maintaining an exceptionally low center of gravity (CG) for superior highway stability. Fabricated from high-tensile carbon steel (Q345B/Q355B) or lightweight aluminum alloy, each hopper features an independent vulcanized canvas or polyurethane fluidizing air bed connected to a high-volume diesel-driven or PTO-powered rotary screw air compressor (10–12 $m^3/min$ airflow at 0.2 MPa working pressure). This multi-hopper architecture delivers rapid discharge speeds ($ge 1.3 - 1.5$ tons/min) with an ultra-low residual rate ($le 0.15%$) and multi-product or batch-unloading versatility. Paired with 3 commercial heavy-duty axles, mechanical or air ride suspension, and dual-line WABCO ABS/EBS pneumatic braking, it provides outstanding hauling efficiency and operational safety. Fully certified under ISO9001, CCC, CE, DOT, and SGS standards.
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Product Details
Technical Specifications
Model NO. : Customized
Type : Semi-Trailer / W-Shape Multi-Hopper Dry Bulk Powder Tanker
Tank Volume / Capacity : 40 $m^3$ to 75 $m^3$ (Approx. 40T - 70T Dry Powder Payload)
Working Air Pressure : 0.2 MPa (2 bar)
Test Pressure : 0.3 MPa (3 bar)
Discharge Speed : $\ge 1.3 - 1.5$ Tons / Minute
Residual Rate : $\le 0.15\%$ (Near-Zero Material Holdback per Hopper)
Vertical Discharge Height : $\ge 25 - 30$ Meters
Condition : New
Grade : Heavy Duty / High-Capacity Pneumatic Dry Bulk Transport Grade
Shape : W-Shape Multi-Hopper Transverse Profile
Origin : Shandong, China
Production Capacity : Customized
Certifications : ISO9001 / CCC / CE / DOT / SGS
HS Code : 8716399000
Overall Dimensions : 11500-13800 x 2500 x 3800-3980 mm
Tank Body Material : High-Strength Carbon Steel Q345B / Q355B (4mm - 5mm Shell, 5mm - 6mm Dished Heads) or Aluminum Alloy
Fluidized Bed System : Multi-Section Vulcanized Permeable Canvas / Polyurethane Air Slides with Stainless Steel Support Grids
Air Compressor : 10 $m^3/min$ or 12 $m^3/min$ Twin-Cylinder Air Compressor / Screw Compressor
Auxiliary Power Unit (APU) : 4102 / 4105 Diesel Engine (e.g., Weichai / Huafeng) or Tractor PTO Connection
Hoppers / Compartments : 2 to 4 Independent Conical Hoppers with Separate Air Inlet Lines
Kingpin : JOST 2-inch or 3.5-inch Heavy-Duty Bolted/Welded Kingpin
Landing Gear : JOST / FUWA Two-Speed Manual Landing Gear (28T Capacity)
Wheel Base : 6800mm + 1310mm + 1310mm
Tread : 1820 mm / 2050 mm
Axle Number : 3 Axles
Axle Brand : FUWA / BPW / HuaJin Heavy Duty
Axle Capacity : 13T / 16T per axle
Tire Number : 12
Tire Specification : 12R22.5 / 385/65R22.5 Tubeless Heavy-Duty Tires
Tire Brand : Triangle / Double Coin / Michelin / Bridgestone
Rim : 9.00-22.5 / 11.75-22.5 Steel Disc Rims
Suspension : Heavy Duty Mechanical Multi-Leaf Spring / Air Ride Suspension
Leaf Spring : 10pcs / 12pcs Reinforced (90x16mm)
Brake System : Dual-Line Pneumatic Air Braking System with ABS / EBS
ABS/EBS Brand : WABCO / Haldex
Self-dumping : Not Self-dumping (Pneumatic Air Discharge)
Main Chassis / Frame : Integrated High-Strength Sub-Frame Welded Directly to W-Tank Structure
Manhole Cover : Top-Mounted Lightweight Cast Aluminum Pressure Manholes (2-4 Sets) with Quick-Lock Safety Hinges
Discharge Valves : 4-Inch Seamless Steel Discharge Manifold with Cast Steel Butterfly / Ball Valves & Quick Couplings
Safety Equipment : Tank Pressure Relief Valve (Safety Valve), Pressure Gauge, Air Check Valves, Non-Return Valves
Top Walkway : Anti-Slip Steel Mesh Catwalk with Foldable Safety Handrails
Spare Tire Carrier : 1-2pcs
Tool Box : 1pcs Heavy-Duty Lockable Steel Box
Electric System : 24V, 7 Pin Socket, LED Marker & Tail Lights
Wiring Harness : Armored Weatherproof Lines
Painting / Finish : Shot Blasting (Sa 2.5) + Epoxy Anti-Corrosion Primer + Polyurethane Topcoat
Colour : Custom RAL Code / Reflective Hazard Striping & Company Branding
Warranty : Tank Shell Structure 3Y / Axles, Compressor & Engine 1Y
Package : Nude Packing / Bulk Vessel / Ro-Ro
Delivery Time : 30-35 Working Days
Payment Terms : T/T, L/C
Key Structural & Performance Features
1. W-Shape Multi-Hopper Architecture & Maximum Volume
- High-Capacity Low-Profile Design: The transverse W-shaped profile spans multiple side-by-side conical hoppers, allowing a large volumetric capacity (up to 75 $m^3$) while keeping the overall vehicle height compliant and lowering the center of gravity.
- Optimized Weight Distribution: Multiple hoppers distribute the heavy powder payload evenly across the trailer chassis, preventing axle overloading and maximizing legal payload limits on highway networks.
- Precision Submerged-Arc Welding: Constructed using automated welding technology to guarantee absolute structural air-tightness and high fatigue resistance under constant pneumatic pressurization cycles.
2. Multi-Compartment Independent Fluidization & Control
- Modular Hopper Aeration: Each conical hopper features an independent aeration air slide and individual control valves, enabling operators to discharge compartments sequentially or mix different dry materials in a single trip.
- High-Efficiency Air Fluidization: Equipped with multi-layer vulcanized canvas fluidizing beds that thoroughly aerate the powder mass, turning dense materials into a flowing fluid for effortless vertical conveyance.
- Ultra-Low Material Residual: Steep hopper funnel angles combined with centralized blowing lines reduce residual powder holdback to less than $0.15\%$, avoiding cross-contamination between different batches.
3. Integrated Chassis & Heavy-Duty Braking Safety
- Robust Q345B Structural Sub-Frame: The W-tank shell is securely integrated into a high-tensile structural steel frame designed to absorb high torsional twisting and dynamic road loads during heavy-duty transit.
- WABCO ABS/EBS Pneumatic Braking: Dual-line braking system featuring WABCO ABS/EBS and emergency relay valves, ensuring synchronized, dependable stopping power under full maximum payload conditions.
- Overpressure Safety Protection: Fitted with calibrated pressure safety relief valves that automatically vent excess air if internal pressure exceeds 0.22 MPa, ensuring total operational safety at terminal unloading sites.
Commercial & Logistics Terms
- Warranty Policy: 3-Year warranty for the main tank shell and structural chassis frame; 1-Year warranty for axles, air compressor, diesel engine, and discharge valves.
- Delivery Lead Time: 30 – 35 working days upon order confirmation and technical drawing approval.
- Packaging & Shipping: Nude packing; shipped via Bulk Cargo vessel or Ro-Ro vessel.
- Payment Terms: T/T (Telegraphic Transfer), L/C (Letter of Credit).
