The Shaanxi Automobile 6×2 3-axle diesel chemical tanker truck is a professionally customized heavy-duty vehicle dedicated to the safe, efficient transportation of strong alkaline corrosive liquids—specifically Sodium Hydroxide (NaOH), Potassium Hydroxide (KOH), liquid caustic soda, and other industrial lye solutions. Engineered with Shaanxi Automobile’s proven heavy-duty chassis, a high-strength steel outer tank, and an integrated polyethylene (PE) anti-corrosion lining, this tanker balances structural durability, corrosion resistance, and operational flexibility. With a customizable tank capacity ranging from 13m³ to 20m³, it is tailored to meet the demands of chemical factories, environmental wastewater treatment plants, chemical industrial parks, and industrial raw material logistics, delivering reliable bulk alkaline liquid transport across urban, suburban, and industrial routes.
1. Core Product Overview & Positioning
This tanker is purpose-built to address the unique challenges of transporting strong alkaline liquids, where corrosion resistance, leak prevention, and structural stability are non-negotiable. Unlike general-purpose tankers, it undergoes specialized customization to ensure compatibility with NaOH and KOH—substances that can severely corrode standard steel tanks without proper protection. The 6×2 3-axle configuration (1 front steering axle + 1 middle auxiliary axle + 1 rear drive axle) strikes an optimal balance between load-bearing capacity, maneuverability, and fuel efficiency, making it ideal for both long-distance distribution and on-site delivery in confined industrial areas.
Key Core Parameters:
Drive Configuration: 6×2 (3 axles total: 1 front steering axle + 1 middle auxiliary axle + 1 rear drive axle)
Tank Capacity: 13m³ – 20m³ (customizable in 1m³ increments to match logistics needs)
Tank Structure: Carbon steel outer shell + integrated polyethylene (PE) anti-corrosion lining
Applicable Medium: Sodium Hydroxide (NaOH), Potassium Hydroxide (KOH), liquid caustic soda, and other non-oxidizing strong alkaline liquids
Gross Vehicle Weight: 25–31 tons (compliant with national and industrial dangerous goods transport regulations)
Power Source: Shaanxi Automobile dedicated diesel engine (Weichai/Shaanxi Automobile joint production)
2. Chassis & Power System: Reliable Foundation for Heavy-Duty Chemical Transport
The tanker is built on Shaanxi Automobile’s mature heavy-duty chassis—renowned in the commercial vehicle industry for its durability, load-bearing capacity, and adaptability to complex road conditions. Every component is optimized for the rigors of corrosive liquid transport, ensuring long-term reliability and minimal downtime.
2.1 Chassis Structure & Safety
The chassis adopts a reinforced ladder-type frame made of high-tensile carbon steel, with thickened longitudinal beams and dense cross-members to enhance structural rigidity and resistance to torsion and fatigue. This design effectively supports the weight of the full tank (13–20m³ of alkaline liquid) and withstands the vibration and impact of uneven roads, industrial sites, and long-haul travel.
Axle Configuration: The 6×2 layout features a 7-ton front steering axle (with reinforced steering components for precise control), a 7-ton middle auxiliary axle (with optional lift function to reduce tire wear when empty or partially loaded), and a 13-ton rear drive axle (Shaanxi Automobile heavy-duty axle with cast iron housing and high-strength differential). This configuration distributes the load evenly, improves traction on slippery or uneven surfaces, and enhances maneuverability—critical for navigating narrow industrial roads and chemical park entrances.
Suspension & Braking: Equipped with reinforced multi-leaf spring suspension with heavy-duty shock absorbers, the chassis minimizes vibration during transport, protecting the internal PE lining from cracking or peeling caused by prolonged bumping. The braking system adopts a dual-circuit air brake with ABS (Anti-Lock Braking System), exhaust auxiliary brake, and emergency brake, ensuring stable and reliable stopping power even under full load—fully compliant with national dangerous goods transport safety standards.
2.2 Diesel Power Train
The tanker is powered by a Shaanxi Automobile dedicated diesel engine (co-produced with Weichai), available in power ratings ranging from 240HP to 320HP. These engines are engineered for low-speed high torque, delivering strong climbing ability and stable power output under full load—ideal for long-distance continuous transport and steep industrial routes. Key features of the engine include:
Turbocharged intercooled design for improved fuel efficiency and power output.
High dust resistance (equipped with a heavy-duty air filter) to adapt to industrial and construction site environments.
Extended maintenance intervals (up to 20,000km) to reduce downtime and maintenance costs.
Compliance with Euro V/Euro VI (National VI) emission standards, ensuring legal operation in urban and industrial areas.
Transmission: Matched with an 8-speed or 10-speed heavy-duty manual transmission (Fast Gear series), featuring smooth shifting, durable gear sets, and a wide gear ratio range. This transmission is optimized for full-load starts, acceleration, and slope climbing, ensuring efficient power delivery in all operating conditions.
3. Tank Body Design: Steel Strength + PE Anti-Corrosion (Core for NaOH/KOH Transport)
The tank body is the most critical component of this tanker, as it directly contacts corrosive alkaline liquids. The steel-PE composite structure is specifically designed to address the corrosion risk of NaOH and KOH, ensuring long service life and zero liquid leakage.
3.1 Outer Steel Shell
The outer tank is constructed from thickened high-strength carbon steel plate (6–8mm thickness), formed by integral rolling and full penetration welding. The steel shell provides exceptional mechanical strength, impact resistance, and pressure resistance, protecting the internal PE lining from external damage—such as stone bumps, collisions, and extrusion during transport. The surface of the steel shell is treated with anti-corrosion painting (epoxy resin coating) to prevent rust and corrosion from the external environment (rain, dust, industrial fumes).
3.2 Internal Polyethylene (PE) Lining
The internal lining is made of high-quality polyethylene (PE) material, integrated into the steel tank with a thickness of 8–12mm (customizable according to the concentration of NaOH/KOH). PE is a chemically inert material that does not react with strong alkaline liquids, ensuring no dissolution, peeling, or contamination of the transported medium. Key advantages of the PE lining include:
Excellent corrosion resistance: Completely isolates NaOH/KOH from the steel tank, preventing corrosion and leakage.
Anti-permeation performance: No liquid seepage, ensuring the purity of the transported medium and avoiding environmental pollution.
Long service life: Resists wear and tear, with a service life of 5–8 years (2–3 times longer than unlined steel tanks).
Food-grade safety: Non-toxic, odorless, and meets industrial standards for liquid transport.
3.3 Structural & Safety Features
Internal Anti-Wave Baffles: Multiple sealed anti-wave partition baffles are installed inside the tank, reducing liquid sloshing during driving. This minimizes the offset of the vehicle’s center of gravity, avoiding rollover risks during sharp turns, emergency braking, and downhill driving—critical for the safe transport of heavy corrosive liquids.
Sealing System: All manholes, feeding ports, discharge outlets, and pipeline interfaces adopt alkali-resistant fluorine rubber sealing gaskets and anti-corrosion flanges. The fully sealed design ensures no leakage, no seepage, and no volatilization during loading, transportation, and unloading—preventing environmental pollution and safety hazards.
Liquid Conveying System: Equipped with a professional chemical anti-corrosion centrifugal pump (PTFE-lined), PE-lined pipelines, and alkaline-resistant valves. The system supports fast loading and unloading of NaOH/KOH lye, with a flow rate of up to 500L/min, ensuring efficient logistics operations. All components in the conveying system are resistant to strong alkali, avoiding corrosion and liquid contamination.
4. Capacity Customization & Application Adaptability
The tanker offers flexible tank capacity options (13m³, 15m³, 18m³, 20m³) to meet different logistics needs:
13m³ Version: Suitable for small-batch, frequent delivery (e.g., on-site refueling for wastewater treatment plants, small chemical workshops).
15–18m³ Version: The most popular configuration, balancing delivery efficiency and maneuverability—ideal for medium-distance distribution between chemical plants and industrial parks.
20m³ Version: Designed for large-batch bulk transport (e.g., long-distance delivery from refineries to chemical factories).
Regulatory Compliance: The tanker has complete certification documents, including dangerous chemical transport filing, tank pressure resistance test report, PE lining material certification, and hazardous substance warning markings (corrosive liquid signs, reflective strips, danger lights). It fully complies with national and international dangerous goods transport regulations, ensuring legal operation on all roads and access to chemical industrial parks.
5. Cab Design: Comfort & Safety for Long Shifts
The cab is designed with driver comfort and safety in mind, suitable for long-distance cross-city transport and daily industrial logistics:
Safety Structure: High-strength crash-proof cab with rollover protection, reducing injury risk in accidental collisions.
Comfort Features: Optional high-roof sleeper cab (2–3 seater) with air conditioning, heating, ergonomic air-suspension driver seat (with lumbar support), and noise insulation. These features reduce driver fatigue during long shifts.
Operational Convenience: Centralized control panel for liquid loading/unloading, with clear markings and easy-to-operate buttons. The cab is equipped with a large instrument cluster, multi-function steering wheel, and ample storage space for tools, documents, and personal items.
Visibility: Panoramic windshield, wide-angle side mirrors, and optional blind-spot monitoring to eliminate visual dead zones, ensuring safe maneuvering in narrow industrial areas.
6. Core Competitive Advantages
Professional Anti-Corrosion Design: Steel outer shell + PE inner lining combines structural strength and corrosion resistance, perfectly adapting to NaOH/KOH transport—no leakage, no contamination, long service life.
Flexible Capacity & Maneuverability: 13–20m³ customizable capacity + 6×2 3-axle layout, suitable for both large-batch long-distance transport and small-batch on-site delivery.
Reliable Shaanxi Automobile Chassis: Mature heavy-duty chassis with strong load-bearing capacity, stable performance, and low maintenance costs—proven in harsh industrial environments.
Full Safety Configuration: Dual-circuit air brake + ABS + emergency brake + anti-static system, fully compliant with dangerous goods transport standards, ensuring safe operation.
Cost-Effective Operation: Fuel-efficient diesel engine, extended maintenance intervals, and durable PE lining reduce long-term operating costs for fleets.
Comprehensive After-Sales Support: Shaanxi Automobile’s global service network provides on-site maintenance, fast parts delivery, and technical support—minimizing downtime for industrial fleets.
7. Main Application Scenarios
Bulk delivery of NaOH/KOH and liquid caustic soda for chemical factories and refineries.
On-site supply of alkaline liquids for environmental wastewater treatment plants (pH adjustment, sewage treatment).
Raw material distribution in chemical industrial parks, supporting metallurgy, textile, and energy enterprises.
Long-distance cross-city transport of strong alkaline liquids between industrial regions.
Fixed-point logistics support for industrial enterprises with long-term demand for NaOH/KOH.
Final Summary
The Shaanxi Automobile 6×2 3-axle chemical tanker truck is a dedicated, high-reliability solution for strong alkaline liquid transport. By integrating Shaanxi Automobile’s proven heavy-duty diesel chassis, a high-strength steel tank, and a professional PE anti-corrosion lining, it effectively solves the core challenges of NaOH/KOH transport—corrosion, leakage, and safety. With flexible capacity options, full regulatory compliance, and humanized design, it is the preferred choice for chemical fleets, industrial enterprises, and logistics companies that require safe, efficient, and durable alkaline liquid transport. Whether for small-batch on-site delivery or large-batch long-distance distribution, this tanker delivers consistent performance, peace of mind, and long-term value.
