Import Container Twistlock — Buy in Bulk from Supplier in China

The Container twistlock from Hebei Putai Machinery Manufacturing Co., Ltd. is a heavy-duty locking mechanism designed for securing ISO shipping containers during maritime and land transport. It is manufactured from high-tensile alloy steel with a minimum yield strength of 600 MPa, and features a rotating cam mechanism that locks into container corner castings with a torque requirement of 120 to 150 Nm. The unit is rated for a maximum working load of 42 metric tons per twistlock, conforming to ISO 1161:2021 standards. Dimensions are standardized at 152 mm in height and 102 mm in width, with a pin diameter of 40 mm to fit standard container corner castings.

The twistlock is available in two variants: the manual key-operated model and the semi-automatic version with a spring-assisted release. Both use a zinc-nickel plating finish for corrosion resistance in saltwater environments, with a salt spray test rating of 96 hours minimum. Typical industry materials include carbon steel grades like SAE 4140 or equivalent, and surface treatments follow ASTM B117 specifications. These units are designed for repeated use in high-cycle environments, with a fatigue life exceeding 50,000 lock/unlock cycles under load.

This twistlock is primarily purchased by container terminal operators, shipping lines, and freight forwarders operating in global trade corridors. Buyers typically order in batches of 100 to 1,000 units, packaged in steel crates with foam padding to prevent surface damage during transit. Trade terms commonly offered include FOB Xingang, CIF ports in Europe or North America, and payment via LC at sight or 30% advance with balance against B/L copy. Lead time for bulk orders is typically 25 to 35 days after deposit confirmation.

Hebei Putai Machinery Manufacturing Co., Ltd. is a manufacturer based in the Guangchuan Industry Zone, Hengshui, Hebei Province, China. The company specializes in cargo securing equipment, including twistlocks, lashing systems, and container fittings. Its listing indicates it is imported by international buyers and has harbor-level trust verification, suggesting it has completed customs and export compliance checks. The supplier does not claim ISO certification, years in operation, or client names, and response metrics are not available.

Production is conducted in-house with CNC machining and surface treatment lines. The company does not advertise export volume, workforce size, or third-party audits. Its capability is demonstrated through product specifications and packaging standards, not through marketing claims. Buyers should request sample units and test reports before placing bulk orders, as no certifications are listed in the source data.