4 axles Low bed Semi Trailer is a common type of semi-trailer, belonging to the category of low bed trailers.
Structural characteristics
- Frame: Usually in a stepped shape, with longitudinal beams in an I-shaped cross-section, it has high stiffness and strength.
- Cargo platform: The main plane is low, which ensures smooth transportation and is conducive to carrying various types of construction machinery, large equipment, and steel.
- Suspension: Three axle balanced, double axle balanced or rigid suspension is commonly used, and mass balance blocks are installed between the front and rear steel plate springs to balance the force on the front and rear axles.
Load capacity
The more axles there are, the greater the load capacity. The load range of a 4-axle low flatbed semi-trailer is between 20-150 tons.
Applicable scenarios
4 axles Low bed Semi Trailer Mainly used for transporting heavy vehicles, rail vehicles, mining machinery, forestry machinery, engineering machinery, and other heavy-duty goods.
Common types
Including flat plate, concave beam, and tire exposed structures, the two-line four axle high and low height flat semi-trailer is a common vehicle model.

Parameter List
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HYDRAULIC DETACHING NECK LOWBED SEMI TRAILER |
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MODEL |
HT9300EXTL |
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DIMENSION(OPTIONAL) |
AXLE NO. |
RATED LOAD (T) |
TIRE NO. |
TIRE SIZE |
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DIMENSION MADE BY CUSTOMER MACHINE SIZE, STANDARD LENGTH IS 13500MM (CONTACT SUPPLIER FOR MORE) |
1 |
20 |
4 |
825R201000R20 1100R201200R20 12R22.5(OTHER SIZE/ SINGLE SUPER TIRE CONTACT WITH SUPPLIER) |
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2 |
40 |
8 |
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3 |
60 |
12 |
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4 |
80 |
16 |
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5 |
100 |
20 |
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WHEEL BASE (MM) |
1310 |
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AXLE |
13/16/20/25T |
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SUSPENSION |
HEAVY DUTY MECHANIC SUSPENSION WITH LEAF SPRINGS |
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MAIN BEAM MATERIAL |
Q345B MANGANESE PLATES,AUTOMATIC SUBMERGED ARC WELDED |
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BRAKE SYSTEM |
DUAL LINE BRAKING SYSTEM WITH AUTOMATIC BRAKING SYSTEM/CHAMBERS |
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KINGPIN |
2'OR 3.5'INTERCHANGEABLE |
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LANDING GEAR |
28T LOADING CAPACITY WITH 80T STATIC LIFTING CAPACITY. |
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PLATFORM |
4-6 MM DIAMOND STEEL PLATE |
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BRAKE SYSTEM |
DUAL LINES BRAKING SYSTEM WITH AUTOMATIC AIR CHAMBERS |
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ELECTRICAL SYSTEM |
24V,7CORE SOCKET,LIGHTS ACCORDING TO EUROPEAN STANDARDS. |
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MAINBEAM SIZE |
UPPER WING PLATE |
14MM |
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LOWER WING PLATE |
16MM |
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STANDING PLATE |
8 MM |
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HEIGHT |
500-520MM |
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PIN HEIGHT |
ACCORDING TO THE HEIGHT OF THE TRACTOR SADDLE. |
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