Parts for SQS300-5T 12-Ton 5-Section Straight-Boom Crane

The SQS300-5T (12-ton, 5-section straight-boom) crane features a high-strength octagonal boom and a synchronized telescoping mechanism. It offers a maximum lifting capacity of 12 tons, a boom reach of 18.5 meters, and a lifting height of approximately 20.2 meters. It is ideally suited for lifting medium-to-heavy loads—such as engineering equipment, steel structures, construction materials, and heavy machinery—effectively addressing challenges where loads are heavy, lifting points are distant, and standard low-tonnage cranes lack sufficient capacity. Equipped with a dual-pump system and a flow-merging valve, the crane enhances hydraulic efficiency, making it well-suited for high-frequency, continuous lifting operations. A 360° full-rotation system combined with a planetary reduction gear mechanism ensures smooth rotation even under heavy loads. The two-stage outriggers extend up to 8.22 meters, providing a wide support base that enhances stability during heavy-load lifting. Features such as an upper-seat control configuration, integrated control panel, electronic throttle, remote engine start/stop, automatic hook stowage, and a cooling system streamline operations and improve comfort during prolonged use. Customers who already own a local heavy-duty truck chassis can purchase the crane unit separately for installation; this approach reduces costs associated with vehicle procurement, international shipping, and maintenance, making it an excellent choice for overseas clients who prioritize high lifting capacity, long-reach capabilities, operational efficiency, and a strong return on equipment investment.

Why Choose Us for Your Special Purpose Vehicle?
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.
Send us your required vehicle type, working conditions, loading capacity and destination country. We will provide a competitive quotation, a customized technical solution and factory inspection support for your project.