Sany Hook-Auxiliary

The Sany Hook-Auxiliary is a secondary lifting hook attachment that integrates seamlessly with the main hoist system of Sany truck cranes. Unlike the primary hook, which is typically used for direct vertical lifts, the auxiliary hook is positioned to offer additional lifting points, enabling offset loads, tandem lifting, or quick‑change rigging configurations. Its design incorporates a high‑capacity roller bearing that ensures free rotation under load, reducing torsional stress on the wire rope and extending the service life of the entire hoisting mechanism.

This auxiliary hook assembly is built around a forged steel hook body that undergoes heat treatment to achieve optimal hardness and toughness. The hook shank is threaded to accept a heavy‑duty nut and lock washer, ensuring a secure connection to the cradle and counterweight system. The inclusion of a precision‑machined pin and roller bearing allows the hook to pivot smoothly, accommodating angular misalignments during lifting operations without compromising load stability.

The Sany Hook-Auxiliary is particularly valuable in applications where space constraints or load geometry require offset lifting. For example, when handling long pipes, steel beams, or precast concrete elements, the auxiliary hook can be used in conjunction with the main hook to distribute the load evenly and prevent tilting. This capability enhances safety and reduces the risk of load slippage, making the auxiliary hook a preferred choice for complex hoisting tasks on construction and infrastructure projects.

Every Sany Hook-Auxiliary is rigorously tested for proof load and dynamic performance, ensuring compliance with international lifting standards such as ASME B30.10 and EN 13155. The assembly is supplied with a certificate of conformance and traceability markings, giving crane operators and site supervisors full confidence in its load‑bearing capacity. With its robust construction and thoughtful engineering, this auxiliary hook is a testament to Sany’s dedication to safety and operational excellence.

The Sany Hook-Auxiliary is manufactured from premium alloy steel that is forged, heat‑treated, and surface‑hardened to deliver exceptional tensile strength and impact resistance. Each hook is individually tested to withstand a proof load of at least 125% of its rated capacity, ensuring a generous safety margin. The roller bearing is made from hardened chrome steel with a precision‑ground raceway, reducing friction and enabling smooth rotation even under heavy loads.

Our Sany Hook-Auxiliary is sourced directly from Sany’s certified supply chain, guaranteeing authentic, OEM‑grade components. We perform 100% dimensional inspections and material verification on every batch, ensuring that each part matches the exact specifications of your original crane system. This commitment to quality eliminates compatibility issues and reduces installation headaches, allowing your maintenance team to focus on productivity rather than troubleshooting.

The Sany Hook-Auxiliary is designed for quick and straightforward installation. The modular subassembly – consisting of the hook, cradle, bearing, pin, and counterweight – comes pre‑assembled with the correct torque specifications for all nuts and bolts. This reduces assembly time and minimizes the risk of incorrect installation. Furthermore, the counterweight is calibrated to balance the hook’s rotational inertia, providing a smooth and controlled feel during load engagement and release.

By choosing our Sany Hook-Auxiliary, you benefit from competitive pricing, rapid global shipping, and responsive after‑sales support. Our technical team is available to assist with load capacity calculations, rigging configuration advice, and parts compatibility verification. We stand behind every product with a comprehensive warranty and a commitment to customer satisfaction. With our reliable supply and expert guidance, you can keep your Sany crane operating at peak performance, job after job.

Regular visual inspection of the Sany Hook-Auxiliary is essential for safe crane operation. Inspect the hook body for cracks, bending, or wear on the latch and tip. Check the roller bearing for smooth rotation and any signs of pitting or corrosion. Examine the pin, nut, and bolt connections for tightness and any deformation. Any component showing signs of damage or excessive wear must be replaced immediately with genuine Sany parts to maintain structural integrity.

Lubrication is critical for the bearing and pivot points of the Sany Hook-Auxiliary. Use a high‑quality lithium‑based grease and apply it to the bearing races and pin surfaces at recommended intervals (typically every 100 operating hours or as specified in the crane manual). Over‑lubrication should be avoided, as excess grease can attract dust and grit, accelerating wear. Always wipe off old grease and contaminants before reapplying fresh lubricant.

Periodic load testing is recommended to verify the hook’s continuing capability. This should be performed by certified personnel using calibrated test equipment, applying a test load equal to the rated capacity. During the test, observe the hook for any permanent deformation, cracking, or abnormal noise from the bearing. Record the test results in the crane’s maintenance log. If any anomaly is detected, the hook assembly must be taken out of service and thoroughly inspected or replaced.

Maintain a detailed service record for each Sany Hook-Auxiliary, including installation date, inspection findings, lubrication dates, load test reports, and any replacement parts used. This documentation is invaluable for trend analysis, warranty claims, and regulatory compliance. By adhering to a disciplined maintenance schedule, you can extend the service life of the auxiliary hook and ensure the safety of your lifting operations, protecting both personnel and equipment.