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ROTTNE H21D is a strong and efficient harvester for final felling when only the best is an option.
+ Refined on close to 80 points since the first series+ Large power resources+ Extremely strong crane+ Fuel efficient+ 500+225-litre fuel tanks+ 4 different harvester heads+ Handles steep terrain+ Comfort Line
Rottne H21D proved that it belongs to the elite class in terms of reliability and low operating costs. No matter what the rpm range, the large cylinder volume of this powerful diesel engine always ensures high torque, which means it can operate at a relatively low engine speed.
Although the engine is powerful, it is still extremely fuel-efficient –customers state down to 0.35 liter/sub – meaning with 500 plus 225-liter fuel tanks, it can run far between refueling, requiring only 2–3 percent mixture of AdBlue.
The RK250 has a tilting crane base and a reach of 11 meters. It is located directly above the bogie to give the harvester optimum stability, which is necessary to enable the usage of Rottne EGS706 harvester head usage at full reach.
ROTTNE H21D has a powerful 6-cylinder Tier 4 eco-friendly engine of 227 kW (305 hp) that comfortably fulfills applicable emission requirements for current diesel engines.The POWER TECH PSS engine has modern 4-valve technology, a “common rail” injection system, two turbochargers in series, and high torque of 1351 Nm, which provides excellent responsiveness with rapid power output. Thus the harvester can be operated at a lower working engine speed, resulting in a lower noise level, fewer vibrations, and, most importantly, lower fuel consumption.
Rottne harvester cab features a modern design, where the operator sits in the center.+ Same cab for all harvesters+ Large windows provide excellent visibility+ Low noise level – quieter than in a new car+ Comfort Line+ Programmable buttons
The spacious and comfortable cab with large windows gives the operator an excellent view of the entire working area. The cab swivels +/ 90 degrees, level 15 degrees, and it automatically follows the crane from side to side, but can also be controlled manually with joysticks.
The unique Comfort Line cab suspension system reduces shock and impact, making driving on terrain significantly smoother. Initially, Comfort Line was introduced in 2007 – and is now a well-proven system. Since its introduction, Comfort Line had been developed with improved software, more robust design, and precision positioning.
Sound levels are low – in Rottne's cabs, it is quieter than in a new car. Rottne cabs easily satisfy the ergonomic guidelines that apply to forestry machines.
The interior of the cab, distribution box, computer equipment, and control functions are identical, which is a significant advantage for the operators that switch between different Rottne's machine models.
The entire rear section of the harvester, housing the engine and transmission, can be quickly opened for inspection and servicing. The hinged belly plates facilitate servicing work but also make the entire rear section very easy to keep clean.
The hydraulic system vacuum pump reduces oil spillage when replacing hoses. Electric pumps for diesel and hydraulic oil simplifies filling. The distribution box with fuses, relays, and computers is well-positioned for easy access and checking. Troubleshooting the electrical system can be performed via the machine control system’s operating screen.
EGS 706 is a robust harvester head designated to Rottne H21, with a cutting diameter of 75 cm and a 2-speed, hydraulic controlled, tree feeding (3,5 m/s or 5,2 m/sek). A stable harvester head with significant power resources is required when handling heavy final felling. The harvester head has five feed rollers, two in the supporting wheel arms and three in the frame.
Thus, giving the same advantages as in EGS 596, enabling it to run with lower knife pressure, which reduces friction and better utilization of the feeding force. The upper, lower limbing knives, and wheel arms, can be operated either jointly or individually. The diameter measurement is performed via sensors in upper knives and length measurement, by a separate free-running measuring wheel.
LOGMAX 6000B is a light-weight harvester head suitable for final felling. This harvester head combines low weight with high power, designed for large wheeled carriers. LOGMAX 6000B, built on well-proven hydraulics with a maximum hydraulic pressure of 260 bar (3,771 psi) and a max flow of 280 l/min (74 GPM).
The feed rollers always work perpendicular to the tree, thus minimizing friction losses and roller penetration. This geometry also ensures precise length and measuring for high-quality timber. Well placed guards and heavy-duty covers protect internal components and hoses from damage. High performance saw hydraulics provide full flow to the bottom saw for fast cutting. LOGMAX 6000B can be equipped with a Hultdins Supercut saw.
LOGMAX 7000C harvesting head is built on a stiff frame and combines high drive power and high speed. This head performs very well in heavy and branchy tree trunks. Variable displacement feed roller motors provide fast-speed in smaller woods, automatically providing more power in stiffer limbed trees.
Well placed guards and heavy-duty covers protect internal components and hoses from damage. High performance saw hydraulics provide full flow to the bottom saw for fast cutting in all timber sizes.