Import American Type Trailer Parts Outboard Drum Axle — Buy in wholesale FOB from Supplier in China

The American Type Outboard Drum Axle from Shijiazhuang Aotong Machinery Manufacturing Co., Ltd. is a heavy-duty trailer axle designed for 13,000 kg to 16,000 kg capacity applications. The AT13TW1-00 model features a total length of 2,198 mm, track of 1,840 mm, and brake drum distance of 1,280 mm, with HM518445/10 bearings and 10-M22x1.5 ISO wheel fixing. The axle beam measures 150 mm diameter with 419 mm brake size and a 1.625-37 spline, built to North American trailer specifications for demanding freight and haulage operations.

Construction centres on low-alloy machined spindles joined by friction welding with overall heat treatment, a process that yields uniform grain structure through the critical stress zones. The axle stubs and brake hubs employ mould forging rather than casting, which refines grain flow and improves fatigue resistance under cyclic loading. A clone-shape shoulder design reduces stress concentration at the transition between beam and spindle, extending service life in high-mileage fleet use. Standard material is low-alloy steel with typical yield strength of 355 MPa for this axle class, though buyers should confirm the exact grade with the supplier.

These axles serve semi-trailers, flatbeds, tankers and container chassis in markets requiring SAE J687 or comparable compatibility. The outboard drum configuration places brake assemblies outside the wheel hubs, simplifying maintenance access and reducing heat transfer to bearings. Buyers typically specify P.C.D., track and brake chamber centre distance to match existing suspension geometry. Payment terms of L/C, D/P, T/T and Western Union are stated, with ISO 9001:2015 and ISO/TS 16949 certifications held. Lead times and exact MOQ are not specified and must be confirmed directly with Shijiazhuang Aotong.

Shijiazhuang Aotong Machinery Manufacturing Co., Ltd. operates from the industrial area of Tongye Town, Luquan District, Shijiazhuang, Hebei Province, with postal code 050221. The company holds ISO 9001:2015 and ISO/TS 16949 quality system certifications for automotive component manufacturing. Its trust tier is classified as harbor, with a response rate of 0.00 percent and average response hours at zero, indicating no recent buyer engagement data is available through the platform. The supplier maintains an in-house R&D engineering department and expresses willingness to develop market-specific axle and suspension designs for volume opportunities.

The listing presents the AOTONG brand as its product line, with model numbers spanning AT13TW1-00 through AT16TWB1-00 and regional variants including JIS and BSF stud patterns. No information is provided about year of establishment, production floor area, annual output, headcount, export markets served, or named clients. Buyers should verify factory audit status, production capacity, and whether the ISO/TS 16949 certificate remains current before placing orders. The supplier offers warranty terms of one year for axle beams and six months or 80,000 km for components under correct use.