Liquefied Petroleum Gas (LPG) logistics demands the highest tier of pressure vessel engineering. ZW Group’s LPG semi-trailers are designed as high-pressure safety systems, ensuring the secure transport of propane and butane across long distances and varying environmental conditions.



ZW Group is an ISO-certified leader in pressure vessel manufacturing. We specialize in high-capacity gas transport solutions for the global energy sector, prioritizing explosion-proof engineering, precision automated welding, and comprehensive safety monitoring systems. With mature export capabilities and professional after-sales support, ZW Group supplies reliable pressurized gas tank trailers to gas distributors and energy operators worldwide.
This LPG tanker is fabricated from pressure vessel-grade Q345R steel and engineered with a 12mm shell thickness to balance weight and mechanical strength. The cylindrical vessel is produced using automatic submerged arc welding followed by stress-relieving heat treatment (annealing) to stabilize the weld seams and reduce residual stresses. The tri-axle layout yields an effective volumetric capacity range of 54–60 cubic meters (typical 56,000 liters), enabling high payload efficiency with a design pressure rated at 1.77 MPa for pressurized LPG operations.

The 3 Axle 56m³ LPG Transport Tanker Trailer is engineered for bulk LPG distribution across highways and regional routes. Typical applications include long-distance propane and butane delivery to gas stations, industrial users, energy depots, and municipal distribution networks. Its high-capacity, pressurized design also suits operators who require fewer trips and lower per-ton transport costs.
By combining a thin-but-strong 12mm shell with Q345R steel and tri-axle payload optimization, this tanker delivers superior payload-per-trip performance and reduced operating cost per ton. The use of automated welding and post-weld annealing extends service life by minimizing residual stresses and lowering the risk of fatigue. Integrated safety systems reduce incident exposure, which can lower insurance and operational downtime for fleet operators.
Every unit is subject to rigorous quality control: metallurgical inspection of Q345R material, 100% X-ray of weld seams, hydraulic pressure testing to 2.1 MPa, and air-tightness checks prior to shipment. ZW Group supplies technical training for operators and maintains an international spare-parts network to support REGO relief valves and other critical components, ensuring uptime for high-pressure LPG operations.
ZW Group’s LPG trailers are produced in controlled facilities using robotic and automatic submerged arc welding processes, strict NDT regimes, and proven pressure-vessel metallurgy. Our engineering emphasis on safety — including REGO relief systems, emergency pneumatic shut-offs, and static grounding — makes our trailers a sound choice for hazardous-material transport in demanding commercial operations.

Manufacturing follows ISO pressure-vessel protocols with anti-corrosion surface treatments and secure packing. Finished units are routed through professional RORO or containerized shipment channels, depending on buyer requirements, with documentation and testing certificates provided for customs and regulatory compliance.

For pricing and customization options for this 3 axle 56m3 LPG tanker trailer, please use the "Contact Us" or "WhatsApp" button on the page to request the latest quote. Contact us directly via WhatsApp for a high-pressure LPG transport solution.
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FAQ
Yes, we provide a wide range of LPG transport solutions from 40m³ to 60m³ depending on your local axle load regulations.
We perform 100% X-ray weld inspection and ultrasonic flaw detection on every unit to guarantee structural integrity.
Each trailer is fitted with Rochester magnetic level gauges, high-precision pressure gauges, and dual safety relief valves.
Our tanks are engineered for high-pressure loads, typically ranging from 1.61 MPa to 1.77 MPa.
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