This 4 ton knuckle boom truck mounted crane (Model: SQZ84A.2) is a heavy-duty, high-efficiency folding boom lifting solution purpose-built for commercial lifting operations with rigorous performance demands. Delivering a maximum lifting moment of 8.4 t·m and a wide 400° slewing range, this industry-grade hydraulic knuckle boom crane balances exceptional lifting power with a compact installation footprint, making it a reliable asset for commercial project contractors, heavy logistics operators, and equipment rental service providers. Manufactured to strict quality standards, this 4 ton truck mounted crane delivers consistent performance in high-cycle, demanding work environments.
Boasting a 4000 kg maximum lifting weight, this folding boom truck crane handles heavy construction materials, steel structural components, and large industrial equipment with ease, outperforming compact models in heavy-load commercial applications.
The extended 400° slewing angle eliminates frequent vehicle repositioning, cutting down loading cycle times and boosting on-site productivity for time-sensitive commercial projects.
With a self-weight of just 1350 kg, this truck loader crane minimizes excess chassis load, preserving fuel efficiency and transport capacity without compromising lifting power.
Engineered with a 28 MPa rated hydraulic system, the crane delivers stable oil flow, smooth lifting motion, and precise control, even during continuous heavy-duty operation, reducing downtime for commercial operators.
Full customization options (color, control systems, auxiliary accessories) and global certification support are available to meet regional market requirements for commercial purchasers.
Core Parameter | Specification | Core Parameter | Specification |
Maximum Lifting Weight | 4000 kg | Rated Hydraulic Pressure | 28 MPa |
Maximum Lifting Moment | 8.4 t·m | Slewing Angle | 400° |
Crane Self Weight | 1350 kg | Installation Space | 850 mm |
Recommended Hydraulic Flow | 25 L/min | Oil Tank Capacity | 60 L |
Recommended Power | 15 KW |
This compact articulated boom crane is tailored for diverse commercial applications, including infrastructure and municipal engineering projects handling precast components, construction site material lifting for commercial building projects, heavy industrial equipment installation and relocation, high-volume industrial logistics operations, and commercial equipment rental fleets for short and long-term project use.
Prior to operation, park the vehicle on firm, level ground, fully extend and stabilize outriggers with support pads, and complete a full site inspection for overhead obstacles and hazards. Always follow the official load chart, never exceed rated capacity, and maintain a minimum 10-meter distance from high-voltage lines. Never operate multiple boom controls simultaneously, and never leave suspended loads unattended.
Perform daily pre-operation checks of hydraulic oil levels, hose integrity, and bolt tightness. Lubricate pivot points, boom slides, and cylinder pins on a scheduled basis, and replace worn components immediately. Only trained personnel should conduct hydraulic system maintenance to ensure compliance with safety standards.
Yes, this model is engineered with a reinforced structural frame and stable high-pressure hydraulic system, purpose-built for frequent, high-cycle heavy lifting in commercial work environments.
Yes, we provide full certification support tailored to the regulatory requirements of your destination market, ensuring compliance for international commercial purchasers.
Yes, we offer full customization for control systems, color schemes, auxiliary accessories, and performance configurations to meet the specific needs of your commercial operations.
