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SQ4S
SKPL-LIFT
The boom is made of high-strength structural steel, ensuring rigidity while improving bending resistance. This allows for a more balanced distribution of lifting moments, resulting in higher effective lifting capacity and smoother telescopic movements under the same tonnage. It enhances continuous operation efficiency, making it ideal for scenarios requiring stability and precise work rhythm.
With a clear structure, minimal maintenance points, and responsive hydraulic system, this crane is suitable for installation on small- to medium-sized commercial truck chassis. It is widely used in construction material handling, equipment transport, municipal projects, and logistics operations, offering an optimal balance of performance, economy, and reliability.
Product Advantage
Energy Efficiency: The straight boom design reduces the number of hydraulic cylinders and circuits, lowering hydraulic oil consumption under the same workload, which effectively reduces fuel costs and system heat generation.
Higher Lifting Efficiency: With a shorter power transmission path and direct boom force, lifting and telescoping actions are faster and more stable within the rated load range, shortening the cycle time for each lift.
Strong Structural Rigidity and Stability: The boom is made of high-strength structural steel, offering better bending and torsion resistance than multi-jointed booms. It remains stable when handling heavy loads, enhancing operational safety.
High Reliability and Low Failure Rate: The simple structure with fewer moving parts makes the hydraulic system easier to control, suitable for long-term, high-frequency use, and reduces unplanned downtime.
Low Maintenance and Operating Costs: Maintenance points are concentrated with ample access space, making routine servicing easy,
Technical Parameters

Technical Parameter | |
Installation space | 750 mm |
Model name | SQ4SB3 |
Max.Lifting Capacity | 4000 Kg |
Max.Lifting Moment | 8.4 Ton.m |
Hydraulic System Pressure | 20 Mpa |
Hydraulic System Flow | 26 L /min |
Slewing Angle | 360°FR |
Reconmmend Power | 16 Kw |
Oil Tank Capacity | 60 L |
Crane Self Weight | 1300 Kg |
Application Scenarios of SKPL-LIFT 4 Ton Telescopic Boom Truck Mounted Crane
Construction and Municipal Works
Suitable for lifting building materials, precast components, pipes, and small steel structures. The straight telescopic boom provides stable operation on roads, construction sites, or municipal projects, ideal for frequent lifting and precise positioning.
Industrial Equipment and Factory Handling
Can be used for in-factory equipment installation, unit replacement, and material transfer. The straight boom ensures smooth telescoping, allowing efficient lifting in factory aisles or fixed workstations.
Logistics and Project Transportation
Widely used in logistics parks and transport vehicles for fast loading and unloading. Efficient telescoping and direct lifting reduce waiting time and improve turnover efficiency.
Agriculture and Infrastructure Projects
Suitable for handling agricultural machinery, installing irrigation facilities, and rural infrastructure projects, providing flexible and reliable operation on unpaved surfaces or open areas.
FAQ
Are you a factory or a trading company?
We are an integrated factory and trading company, providing long-term technical and after-sales support. SKPL-LIFT offers one-stop procurement and technical solutions to ensure smooth operation of your work and business. You are welcome to visit our factory.
I’m not sure which truck-mounted crane I need
Typically, truck-mounted cranes come in two styles: foldable boom and straight boom. Foldable booms are ideal for tight spaces or flexible lifting tasks, such as using attachments, while straight booms excel at long-reach heavy lifting. You can share your detailed requirements, and we will help you choose the most suitable option.
What is your delivery time?
Usually, delivery is within 30 working days after receiving the deposit. For standard products, we have stock and can deliver within 15 working days. Customized products may require more time, depending on your order specifications.
How long do you provide after-sales support?
We provide lifelong online technical support, a 1-year product warranty, and optional paid extended warranty.
How many years has your factory been in this industry?
We have 18 years of experience in design, manufacturing, and domestic and international trade, exporting products to over 100 countries and regions, consistently earning high praise from our customers.