Aluminum Alloy Bulk Flour Tanker
The Aluminum Alloy Bulk Flour Tanker (food-grade dry bulk powder transport semi-trailer) is an ultra-lightweight, sanitary-engineered pneumatic discharge trailer designed specifically for the hygienic, zero-contamination road transport and automated unloading of edible food-grade powders, including wheat flour, starch, milk powder, sugar, food additives, and grain derivatives. Constructed entirely from high-strength, corrosion-resistant aluminum alloy (AL5083 / AL5454) with polished internal surfaces, it meets strict international food safety standards (FDA, EC 1935/2004, and HACCP). The lightweight aluminum structure reduces vehicle tare weight by up to 30–35% compared to carbon steel models, significantly increasing legal payload capacity and fuel economy. Equipped with a food-grade, non-toxic, odorless fluidization air slide system (or vibratory bottom cone aeration) powered by an oil-free screw air compressor (producing clean 10–12 $m^3/min$ air flow at 0.2 MPa), it ensures 100% moisture-free, oil-free pneumatic transfer into bakery silos and food processing plants with an ultra-low residual rate ($le 0.1%$). Paired with 3 high-capacity commercial axles, air ride suspension, and dual-line WABCO ABS/EBS pneumatic braking, it delivers superior highway handling, hygienic integrity, and operating efficiency. Fully certified under ISO9001, CCC, CE, DOT, and SGS standards.
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Product Details
Technical Specifications
Model NO. : Customized
Type : Semi-Trailer / Food-Grade Aluminum Alloy Dry Bulk Powder Tanker
Tank Volume / Capacity : 35 $m^3$ to 60 $m^3$ (Approx. 25T - 40T Food Powder Payload)
Working Air Pressure : 0.2 MPa (2 bar)
Test Pressure : 0.3 MPa (3 bar)
Discharge Speed : $\ge 1.2 - 1.5$ Tons / Minute
Residual Rate : $\le 0.1\%$ (Sanitary Near-Zero Holdback)
Vertical Discharge Height : $\ge 25 - 30$ Meters
Condition : New
Grade : Heavy Duty / Hygienic Food-Grade Transport Grade
Shape : V-Shape / W-Shape / Cylindrical Aluminum Tank Body
Origin : Shandong, China
Production Capacity : Customized
Certifications : Food-Grade (FDA / EC 1935/2004) / ISO9001 / CCC / CE / DOT / SGS
HS Code : 8716399000
Overall Dimensions : 11000-13000 x 2500 x 3800-3980 mm
Tank Body Material : High-Strength Marine-Grade Aluminum Alloy AL5083-H111 / AL5454 (5mm - 6mm Shell, 6mm Dished Heads)
Internal Surface Finish : Mirror-Polished / Electropolished Sanitary Surface ($\text{Ra} \le 0.4 \ \mu\text{m}$)
Fluidized Bed System : Food-Grade White Silicone / Non-Toxic Polyurethane Permeable Aeration Pads with Stainless Steel Grid
Air Compressor : Oil-Free Rotary Screw Air Compressor (10 - 12 $m^3/min$) with Air Cooler & Dehumidifier Filter
Auxiliary Power Unit (APU) : 4102 / 4105 Diesel Engine or Tractor PTO Connection
Kingpin : JOST 2-inch or 3.5-inch Heavy-Duty Bolted Aluminum/Steel Kingpin Assembly
Landing Gear : JOST / FUWA Heavy Two-Speed Manual Landing Gear (28T Capacity)
Wheel Base : 6500mm + 1310mm + 1310mm
Tread : 1820 mm / 2050 mm
Axle Number : 3 Axles
Axle Brand : BPW / FUWA / SAF-HOLLAND
Axle Capacity : 13T / 16T per axle
Tire Number : 12 / 6 (Super Single Options)
Tire Specification : 12R22.5 / 385/65R22.5 Tubeless Tires
Tire Brand : Michelin / Bridgestone / Continental / Triangle
Rim : 9.00-22.5 / 11.75-22.5 Polished Aluminum Alloy Disc Rims
Suspension : Heavy Duty Air Ride Suspension with Electronic Leveling Control
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 : Aluminum Alloy Integrated Structural Sub-Frame
Manhole Cover : Food-Grade Stainless Steel / Aluminum Pressure Manholes with Dust Seals & Safety Locks
Discharge Valves : Food-Grade Stainless Steel (316L/304) Butterfly Valves, Quick-Release Fittings & Air Dehumidifier
Safety Equipment : Tank Sanitary Safety Valve, Stainless Steel Pressure Gauges, Air Check Valves, Dust Collectors
Top Walkway : Aluminum Anti-Slip Grid Catwalk with Foldable Safety Handrails
Spare Tire Carrier : 1-2pcs (Aluminum Alloy)
Tool Box : 1pcs Heavy-Duty Lockable Aluminum Tool Box
Electric System : 24V, 7 Pin Socket, Full LED Marker & Tail Lights
Wiring Harness : Armored Weatherproof Lines
Painting / Finish : Natural Polished Aluminum Finish / Clear Anodized Protective Coating with Food Hazard Logos
Colour : Custom Aluminum Metallic / White Branding & Food Hygiene Markings
Warranty : Aluminum Tank Structure 3Y - 5Y / Axles, Compressor & Engine 1Y
Package : Nude Packing / Bulk Vessel / Ro-Ro
Delivery Time : 35-40 Working Days
Payment Terms : T/T, L/C
Key Structural & Performance Features
1. Ultra-Lightweight AL5083 Alloy & Food-Grade Hygiene
- Sanitary Marine-Grade Aluminum: Fabricated from high-strength AL5083/AL5454 aluminum alloy, eliminating rust and metal oxidation hazards while reducing trailer tare weight by up to 2 tons compared to steel alternatives.
- Polished Smooth Interior: The inner tank surface undergoes precision mechanical polishing and electropolishing ($\text{Ra} \le 0.4 \ \mu\text{m}$), preventing fine powder adhesion, bacterial growth, and moisture traps.
- Compliance with FDA & Food Safety Mandates: Designed in strict accordance with FDA and European food-contact material regulations, guaranteeing absolute purity during bulk flour and starch distribution.
2. Oil-Free, Moisture-Free Pneumatic Discharge System
- Oil-Free Air Compressor & Cooling Unit: Features a specialized oil-free rotary screw compressor paired with an air cooler and moisture filter, delivering dry, contaminant-free air into the tank to eliminate flour clumping or oil contamination.
- Non-Toxic Food-Grade Aeration Pads: Uses food-grade, white silicone/polyurethane air slides and stainless steel (304/316L) discharge manifolds to fluidize flour efficiently without leaving chemical residues.
- Near-Zero Residual Rate: Combined steep funnel geometries and smooth internal walls achieve a minimal residual rate ($\le 0.1\%$), enabling complete tank cleaning between batches.
3. Air Ride Stability & Premium Running Gear
- Adjustable Air Suspension: Outfitted with premium air ride suspension to cushion the lightweight aluminum structure from dynamic road impact, protecting structural welds and preventing fatigue cracks.
- WABCO EBS with Roll Stability: Dual-line pneumatic braking with WABCO ABS/EBS ensures maximum deceleration efficiency and anti-rollover protection under full payload conditions.
- Polished Aluminum Components: Fitted with polished aluminum rims, aluminum landing legs, and aluminum toolboxes for enhanced corrosion resistance and visual appeal.
Commercial & Logistics Terms
- Warranty Policy: 3 to 5-Year warranty for the aluminum tank shell structure; 1-Year warranty for axles, air compressor, diesel engine, and sanitary valves.
- Delivery Lead Time: 35 – 40 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).

