The SQS100A-4 4 ton telescopic boom truck crane is a highly capable, space-saving hydraulic lifting solution tailored for commercial fleet operators and municipal project contractors. Engineered to deliver a maximum lifting capacity of 4000 kg and a rated lifting moment of 10 t·m, this hydraulic truck mounted crane achieves exceptional power-to-weight efficiency. The unit features a remarkably lightweight 1450 kg body that preserves the carrier vehicle's payload capacity, alongside an ultra-narrow 700 mm installation footprint. This compact geometry ensures broad compatibility with most medium-duty and light commercial trucks via standardized PTO interfaces. Manufactured under strict ISO quality management protocols and fully CE certified, the crane guarantees reliable, compliant performance across global jurisdictions. With full 360° slewing capability and responsive hydraulic controls, operators experience fluid, precise load handling whether navigating tight urban alleys or executing complex material transfers in remote field zones.
At the core of this 4 ton telescopic boom lorry crane lies a meticulously engineered hydraulic architecture operating at a 20 MPa rated pressure with a 32 L/min recommended flow and 16 kW matched power. We source critical components—including high-displacement hydraulic pumps, multi-way directional valves, and premium-sealed cylinders—from industry-leading supply chains to ensure absolute reliability during high-frequency, heavy-load operations. The innovative dual telescopic cylinder configuration physically separates the boom lifting and extension actions. This design eliminates jerky movements, providing operators with a smooth, tactile response at the control levers and preventing dangerous load sway. By minimizing fluid turbulence and energy loss, this system significantly extends the service life of internal seals and moving parts.
The boom structure utilizes a reinforced hexagonal-pentagonal cross-section, formed from high-yield-strength steel and joined through precision automated welding. Before leaving the factory, every unit undergoes rigorous validation, including a demanding 125% overload test, non-destructive testing (NDT) on all critical weld seams, and high-frequency fatigue life verification. This ensures the crane meets strict industrial durability standards. The physical construction features a heavy-duty pivot mechanism and industrial-grade corrosion-resistant surface treatments that withstand harsh weather and abrasive environments. Consequently, operators benefit from a rigid lifting platform that exhibits minimal deflection under heavy strain, drastically reducing the need for unplanned maintenance and keeping operational downtime to an absolute minimum.
Space efficiency defines the physical layout of this compact truck mounted telescopic crane. Requiring only a 700 mm installation gap behind the cab, it easily integrates with a vast array of mainstream light and medium commercial truck chassis. The installation process is streamlined through standardized Power Take-Off (PTO) interfaces and comprehensive technical modification support. Once deployed, the crane offers unrestricted 360° continuous slewing, allowing operators to maneuver loads effortlessly in severely restricted urban environments. To accommodate complex operational demands, the system supports extensive customization options. Fleet managers can equip the crane with wireless remote control systems for better vantage points, aerial work baskets for elevated tasks, auxiliary outriggers for enhanced stability on uneven terrain, and bespoke corporate color schemes to match existing fleet aesthetics.
Core Parameter | Specification | Core Parameter | Specification |
Maximum Lifting Capacity | 4000 kg | Rated Hydraulic Pressure | 20 MPa |
Maximum Lifting Moment | 10 t·m | Recommended Hydraulic Flow | 32 L/min |
Recommended Power | 16 kW | Total Crane Weight | 1450 kg |
Slewing Angle | 360° Full Rotation | Required Installation Space | 700 mm |
Oil Tank Capacity | 60 L | Boom Length Range | 3.6 m × 10.35 m |
This 4 ton hydraulic lifting crane serves as a critical asset across multiple demanding sectors, providing operators with the mechanical muscle needed to execute complex material handling tasks safely and efficiently:
Municipal & Urban Utility Works: Navigating narrow city streets requires precision and a minimal footprint. This crane excels in installing streetlights, setting up heavy traffic signal gantries, maintaining utility poles, and managing urban landscaping materials without blocking multiple traffic lanes.
Construction & Infrastructure Projects: Contractors rely on the 10 t·m lifting moment to hoist structural steel beams, concrete prefabricated panels, and heavy roofing materials. It accelerates residential builds and rural infrastructure upgrades by delivering materials directly to elevated work zones.
Logistics & Warehouse Handling: In busy freight yards and distribution centers, the crane streamlines the loading and unloading of medium-to-heavy cargo. By mechanizing these transfers, facilities significantly boost turnaround times while mitigating the physical risks associated with manual labor.
Agricultural & Field Maintenance: Remote farming operations utilize the crane's dependable lifting capabilities for positioning heavy irrigation equipment, handling bulk agricultural supplies, and performing on-site repairs of massive field machinery where traditional lifting infrastructure is absent.
Before initiating any lifting sequence, operators must park the carrier truck on firm, level ground and engage the parking brake. Fully extend the outriggers, utilizing heavy-duty support pads if operating on soft or uneven terrain to ensure a rigid lifting base. Visually inspect all hydraulic hoses, boom sections, and control levers for signs of wear. This crane is equipped with a comprehensive safety protection system, including an overload protection device, height limiters, two-way hydraulic locks, and anti-decoupling hooks. Always verify that the intended load falls within the rated capacity for the current boom radius and strictly maintain a minimum clearance of 10 meters from overhead high-voltage power lines.
To maintain absolute control and prevent hydraulic shock, operate only one control handle at a time; never attempt to actuate multiple boom functions simultaneously unless utilizing advanced proportional controls. Lift all loads with a slow, deliberate motion to prevent sudden swaying or dynamic overloading. The tactile feedback from the multi-way valves allows operators to feel the load's engagement. Never leave a suspended load unattended under any circumstances. Crucially, operators must avoid extending the working radius while rotating a heavily loaded boom, as this shifts the center of gravity outward and significantly increases the risk of tipping the vehicle.
Consistent preventative maintenance is vital for preserving the crane's operational integrity and extending its lifespan. After each intensive work cycle, thoroughly lubricate all pivot points, boom sliding surfaces, and hydraulic cylinder pins to prevent metal-on-metal friction. Operators should check the 60 L hydraulic oil tank levels daily, listening for any unusual cavitation sounds from the pump. Conduct a comprehensive monthly inspection focusing on hose abrasion, loose mounting bolts, and potential structural fatigue. To ensure compliance and safety, only certified technicians should perform invasive maintenance on the core hydraulic system or load-bearing components.
The crane unit weighs exactly 1450 kg. This exceptionally lightweight profile is achieved through the use of high-yield-strength steel, striking an optimal balance between rugged structural integrity and minimal chassis burden. By keeping the crane's weight low, fleet operators can easily install it on most medium-duty and light commercial trucks while preserving the maximum possible legal payload capacity for transporting actual cargo.
Yes, it is specifically engineered for spatial efficiency. The crane requires an ultra-compact installation footprint of just 700 mm behind the truck cab. Combined with its ability to execute a full 360° continuous rotation, operators can easily position the truck in narrow alleyways, single-lane streets, and restricted municipal job sites. This flexibility makes it an indispensable tool for urban utility maintenance and localized construction tasks.
Absolutely. The equipment is purpose-built for continuous, high-frequency lifting operations. It features a heavy-duty hexagonal-pentagonal boom structure and a premium hydraulic system equipped with high-displacement pumps and durable seals. Having passed rigorous 125% overload and high-frequency fatigue tests, the crane maintains stable, fade-free performance during long shifts, making it perfect for demanding daily logistics and repetitive material handling tasks.
We deliver comprehensive global support designed to minimize your total cost of ownership. This includes rapid dispatch of original OEM spare parts, detailed installation guidance, and professional operator training. Furthermore, we offer extensive customization options to suit specific operational needs, such as wireless remote controls, aerial work baskets, auxiliary outriggers, and custom corporate paint schemes, ensuring the crane perfectly aligns with your exact fleet requirements.
