Parts for SQS100-4 4-Ton 4-Section Straight-Boom Crane

The SQS100-4—a 4-ton, 4-section straight-boom crane—features a lightweight, pentagonal boom design that balances structural strength with reduced deadweight, making it ideal for mounting on light-to-medium-duty trucks while minimizing the impact on chassis payload capacity. Compared to the 3-section version, this model offers a maximum extension of 10.2 meters and a lifting height of approximately 11.5 meters, effectively addressing challenges in scenarios such as construction sites, warehouses, and building material delivery where standard short-boom cranes cannot reach the load. With a full outrigger spread of approximately 4.3 meters, it provides a stable foundation for lifting operations; additionally, its 360-degree continuous rotation allows for flexible lifting from the sides and rear of the vehicle, reducing the need for constant repositioning. The dual-side ground controls and manual throttle offer a simple, straightforward design that facilitates ease of use and maintenance for overseas customers. Customers who already own a local truck chassis can purchase the crane separately for installation, thereby lowering costs associated with vehicle procurement, international shipping, and long-term maintenance—an ideal solution for those prioritizing a longer operating radius, flexible lifting capabilities, lightweight design, and a lower initial 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.