Parts for SQS125-4 5-Ton 4-Section Straight-Boom Crane

The SQS125-4 is a 5-ton, four-section straight-boom crane featuring a high-strength octagonal boom structure that balances load-bearing capacity with torsional rigidity. With a maximum lifting capacity of 5 tons, a boom extension of approximately 9.6 meters, and a lifting height of about 11.3 meters, it meets the loading and unloading needs for construction materials, equipment, machinery, and medium-sized cargo. It effectively addresses common operational challenges such as low manual handling efficiency, high costs associated with frequent external crane rentals, and the performance limitations of standard small-tonnage cranes. The crane utilizes a 360° full-rotation design, allowing for flexible operation from both sides and the rear of the vehicle, thereby minimizing the need for repeated vehicle repositioning; its outriggers extend to approximately 4.82 meters, providing superior operational stability. Dual-side ground controls paired with a manual throttle ensure intuitive operation and easy maintenance. Additional features—such as a winch/cycloidal motor, electric horn, work lights, and a cable-snag prevention bracket—further enhance utility for night operations, on-site signaling, and use in complex environments. Customers who already own a local truck chassis can purchase the crane unit separately for installation; compared to buying a complete truck-mounted crane, this approach reduces costs related to vehicle procurement, international shipping, and long-term maintenance, making it an ideal choice for clients prioritizing medium-tonnage lifting capabilities, operational flexibility, equipment durability, and a strong return on investment.

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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.
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.