Timber trailers: Kronos 140 4WDM

Forest trailer with mechanical transmission

The KRONOS 140 4WDM forestry trailer has a sturdy set of bogey axles based entirely on mechanical transmission, with the power generated by the drive shaft being transmitted via a drive gear and a differential gear system to the bogie housings on both sides of the machine.
There is no elastic or disc clutch inside the bogey housing, the gears being in constant contact with each other. Road safety is guaranteed via multiple-disc brakes.

A standard fixture of the drive gear is its differential gear lock, which enables all four wheels to pull at the same speed. The trailer's set of drive shafts is provided with an overload clutch to deal with inadvertent overloading. The gear ratio between the tractor and the trailer has been adapted in the trailer's front-end gearbox, the gear ratio of the trailer being variable by changing a pair of gear wheels or the entire gearbox.

When the trailer is being pulled with the power transmission off, the set of drive shafts is disengaged, freeing the front-end gearbox from unnecessary rotation, and thus making the trailer easier to pull.

Product Video

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Additional Diagrams

Kronos 140 4WDM
Model140 4WDM
Weight, kg5400
Carrying capacity, kg12000
Total weight permitted on bogie with max speed 30 km/h, kg14000
Cross-section area of load platform, m²3,2
Overall length, mm6150
Length of the load area, mm4000
Bolsters: Fixed / Movable1/3
Load supports8
Bogie wheelbase, mm1300
Bogie movement range, degrees20
Push force of trailer, kN (kp) hydr.driven*185 bar75 (7500)*
Ground clearance, at bogie, mm~ 550
Ground clearance at rear of frame, mm~ 700
Tyres
400/60-15.5/14-
500/55-17/12 ELS-
550/45-22.5/12 ELS-
600/50-22.5/12 ELS L-1 TLs
600/50-22.5/16 ELS L-2 SF (with steel breaker)o
600/50-22.5/16 TRS 6-2 SF (with steel breaker)o
710/45x22.5 Nokian Forest King (with steel breaker)o
700/50-26.5/16 TRS SFS (with steel breaker)-
600/55-26.5/16 TRS L-2 SF (with steel breaker)-
Recommended craneKronos 5000 Series
Kronos 6020 Series
Kronos 8020 Series
Equipment
Front grills
Hydr. adjustable front grill and bolstero
Multiple disc brakess
Operating brake (hydr.drum brakes)-
Parking brakeo
Differential locking systems
Mechanical clutch and lock electric operated from the control units
Turning angle of the hydraulic drawbar, degrees±45
Y-drawbar with frame steeringo
Telescopic rear frame-extension with one bolstero

Equipment: S=Standard, O= optional

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