Parts for SQS157-4 6.3-Ton 4-Section Straight-Boom Crane

The SQS157-4 is a 6.3-ton, four-section straight-boom crane featuring a high-strength, octagonal boom structure. It offers a maximum lifting capacity of 6.3 tons, a boom extension of up to 12 meters, and a lifting height of approximately 13.8 meters. Compared to standard small-to-medium tonnage cranes, it provides a wider operating range, effectively addressing challenges such as heavy loads, long-distance lifting, and reach limitations often encountered in construction sites, equipment installation, and building material transport. The crane supports 360-degree continuous rotation, allowing for flexible operation from the sides or rear of the vehicle and minimizing the need for frequent repositioning. With a full outrigger spread of approximately 4.82 meters, it ensures a stable foundation for medium-tonnage lifting tasks. Dual-side ground controls paired with a manual throttle make operation simple and maintenance convenient. Features such as a winch/cycloidal motor, electric horn, work lights, and anti-snag cable brackets enhance practicality for operations in complex environments or at night. Customers who already own a local truck chassis can purchase the crane unit separately for installation, thereby reducing costs associated with purchasing a complete vehicle and international shipping; this option is particularly well-suited for overseas customers who prioritize superior lifting capacity, extended operating radius, equipment durability, and cost-efficiency.

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Choosing the right special purpose vehicle supplier is not only about finding a competitive price—it is about receiving a vehicle that truly matches your local regulations, operating conditions, payload requirements and business needs. As a professional manufacturer and exporter, we provide factory-direct pricing together with complete one-stop service, helping customers reduce purchasing risks, communication costs and delivery delays.
We can customize the chassis brand, engine power, emission standard, left-hand or right-hand drive, body dimensions, working system and optional equipment according to your application. Whether the vehicle will be used for construction, logistics, municipal services, mining, agriculture or emergency operations, our technical team will recommend a practical and cost-effective configuration rather than simply selling a standard model.
Every vehicle is produced under a controlled manufacturing process and undergoes inspection, functional testing and road testing before delivery. Customers can receive production updates, detailed photos, operation videos and final inspection records. Factory visits and independent third-party inspections are also welcome. Applicable certifications, export documentation, shipping arrangements and customs-related documents can be prepared according to the destination market and project requirements.
Our service continues after delivery. We provide operation guidance, technical support, spare-parts assistance and troubleshooting to help customers keep their vehicles working efficiently.
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