Products Description
The 4t Crawler Spider Crane is designed to fill the gap between compact low-capacity cranes and larger heavy-duty models. With a dead weight of approximately 3 tons and a compact transport size of 3.5 m × 0.8 m × 1.85 m, it can move through 1-meter-wide aisles, standard freight elevators, and narrow building passages while still delivering a 4-ton lifting capacity. This makes it suitable for operations where access is limited but lifting demands remain substantial.
Equipped with a Changchai dual-power system (diesel and electric), the 4t Crawler Spider Crane adapts to a wide range of working environments. Diesel power supports outdoor construction and rugged site conditions, while electric mode allows low-noise, emission-controlled operation indoors, such as in hospitals, shopping malls, and factories. The crawler chassis ensures stable movement on uneven surfaces, supporting tasks including curtain wall installation, equipment relocation, and high-rise facade maintenance.
Technical parameters
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Specifications |
4T |
dead-weight(T) |
3T |
|
Maximum |
13m |
Standard |
Diesel engine and |
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Maximum ground lift |
15m |
Vehicle Size |
|
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Winch device |
Hook lifting speed |
0-8m/min(4 ropes) |
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Specification of steel wire rope |
φ8mm×45m |
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Telescopic device |
Boom form |
2.8m×7-section lifting arm(Support customization) |
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Boom length/time |
3.1m-15m/20sec(Support customization) |
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Luffing device |
Boom angle/time |
0-78°/13sec |
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gyroscope |
Rotation angle/speed |
0-360°(Continuous)/60sec |
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Outrigger |
Outrigger movement form |
Manual screw out+oil pressure |
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Maximum |
4230(length)X3830(rear)X4310(front) |
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running gear |
Walking mode |
Hydraulic motor drive,two speeds |
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Walking speed |
0-2.5km/h |
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Gradeability |
25°(36%) |
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Electrical Machinery |
voltage |
AC380V |
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engine |
Manufacturer |
Changchai(Support customization) |
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Type/displacement |
EV80/F195 |
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start mode |
Electric start |
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start performance |
-50℃-45℃ |
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Fuel/Volume |
Diesel oil/12L |
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Battery capacity |
12v 60AH |
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Fuel consumption |
274g/kW-h |
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Noise level |
Rated speed≤81.5dBA(1m) |
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operating system |
Operation type(boom/leg) |
Manual operation,manual walking |
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Operational Characteristics |
Manual operation(Optional remote control) |
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Track Size |
230(width)72(pitch)53(section) |
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Optional device |
Optional torque controller/remote control/hanging basket/Hydraulic flying arm |
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3.5meters length,0.8meters widt
Key Performance
1. Operating Radius and Lifting Height
The 4t Crawler Spider Crane provides a maximum operating radius of 13 m and a maximum ground lifting height of 15 m. This range allows a five-storey building facade to be covered from a single working position, reducing repeated machine relocation during curtain wall or photovoltaic panel installation and improving overall site efficiency.
2. Telescopic Boom Configuration
The crane is equipped with a 7-section telescopic boom, with each section measuring 2.8 m and a total extension length of up to 15 m. Full boom extension can be completed in approximately 20 seconds, shortening lifting preparation time compared with conventional 4-section boom designs. Boom length can also be customized to meet specific high-altitude lifting requirements.
3. Winch and Lifting Control
A four-rope winch system supports lifting speeds from 0 to 8 m/min, using a φ8 mm × 45 m steel wire rope. Variable-speed control allows smooth and stable lifting, particularly when handling fragile or high-value loads such as tempered glass panels and precision industrial equipment.
4. Continuous Slewing Capability
The crane features 360° continuous rotation, completing one full rotation in approximately 60 seconds. This enables full-area coverage without moving the crawler base, making it suitable for equipment positioning and installation work in confined factory workshops.
5. Boom Luffing Adjustment
The boom luffing angle can be adjusted from 0° to 78° within 13 seconds. Rapid and precise angle changes allow the crane to adapt to complex lifting conditions, including high-rise structural installation and equipment hoisting in restricted or underground spaces.
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