CLAAS is a leading supplier of rotary swathers. The revamped portfolio features four newly updated four-rotor swathers. Resigned from the ground up, the models offer numerous innovative features and unique functions to make life easier for users and guarantee premium forage quality combined with high work rates.
Overview of the new LINER four-rotor swathers from CLAAS
LINER | Working width | Rotor diameter | Tine arms per rotor |
LINER 4900 BUSINESS | 10.10 - 15.00 m | 3800 mm | 14 |
LINER 4800 BUSINESS | 9.30 - 13.60 m | 3500 mm | 12 |
LINER 4800 TREND | 9.30 - 13.60 m | 3500 mm | 12 |
LINER 4700 TREND | 9.30 - 12.70 m | 3300 mm | 12 |
Sturdy main frames, internally routed lines and patented telescopic arms
The backbone of the new LINER models is the innovative main frame made from high-strength steel with a geometry resembling that of a telescopic crane. The enormous cross-section combined with the trapezoid profile absorbs forces evenly to guarantee exceptional stability, as proven by extensive endurance tests performed on the test rig and in the field. The control block, electronics module and hydraulic valves are located on the inside of the chassis, where they are well protected.
Unlike the predecessor models, the telescopic arms extend and retract by mean of a three-stage patented system comprising of a C profile and slide rails, enabling very rapid adjustment of the working width. In the BUSINESS models the arms can be retracted individually and in the TREND models in pairs. All models provide generous ground clearance and a large clearance height thanks to the top/raised linkage.
Working widths can be adjusted by 3.40 to 4.90 m depending on the model, with working widths across the entire series ranging from 9.30 to 15 m. Swath widths can be adjusted from 1.30 – 2.20 m (LINER 4700), 1.40 – 2.40 m (LINER 4800) and 1.40 – 2.50 m (LINER 4900). In the BUSINESS models the swath width can be hydraulically adjusted by ISOBUS operation and several swath widths can be stored in the terminal for optimum convenience. In the TREND models, the swath width can be adjusted in transport position without tools using a spring-loaded lever and hole matrix.
All four rotors are driven mechanically and thus efficiently and directly by PTO. This increases the raking force by up to 50 percent compared with hydraulic drives. All rotors are fitted with individual friction clutches to protect against overload – they respond more smoothly than cam clutches and allow work to continue non-stop even during load peaks. The shaft speed in the two Y-gearboxes on the main frame has been reduced from 540 to 350 rpm to protect the drivetrain. The freewheel of the drive shaft is positioned directly inside the Y-gearbox, enabling the rotors to rotate freely in transport position.