Maximum operator comfort
‘Silent Space ‘– The name says it all
A generous and quiet space – that’s the new KRONE cab which caters for all operator needs during those long working days. Mounted on hydro bearings, this cab offers a maximum of operator comfort and an optimum work environment no matter how harsh the conditions. Designed to ergonomic standards, the interior of this cab offers plenty of space and has a standard passenger seat, climate control and an electric cool box. Logically arranged control panels provide full overview and control of all machine functions.
Safe and convenient
The engine
The EasyCut cutterbar
The innovative KRONE BiG M 420 driveline allows operators to achieve work rates of more than 15 hectares per hour. After all, short and direct drivelines offer the best efficiency.
The conditioners
Merges 9.7 metres (31'10") into one swath
Model | BiG M 420 CV | BiG M 420 CRi | BiG M 420 CM* |
Engine type | MAN D 2066 LE 121 | ||
No. of cylinders | 6 | 6 | 6 |
Displacement | 10.5 | 10.5 | 10.5 |
Max. output to ECE R120 at 1,800 rpm kW/hp |
311/423 |
311/423 |
311/423 |
Max. output to ECE R24 at 1,800 rpm kW/hp |
300/408 |
300/408 |
300/408 |
Rated speed rpm | 1,800 | 1,800 | 1,800 |
Fuel tank capacity liter | 700 | 700 | 700 |
Ground drive | |||
Model | Infinitely variable hydrostatic drive with wheel motors | ||
Work rate up to km/hr | 20 (12 mph) | 20 (12 mph) | 20 (12 mph) |
Transport speed up to km/hr | 40 (25 mph) | 40 (25 mph) | 40 (25 mph) |
4WD | standard | standard | standard |
Axle separation | standard | standard | standard |
Axles | |||
Steering angle Degrees | 53 | 53 | 53 |
Rear axle steering | Yes | Yes | Yes |
Steered front axle | Yes | Yes | Yes |
Mowers | |||
No. of mowers / toppers | 3 | 3 | 3 |
Work width mm | 9,720 (31'11") | 9,000 (29'6") | 9,000 (29'6") |
Conditioner speed rpm | 700/1.000 | 760 | 2.100 |
Conditioner model | V-type steel tines | rubber or steel roller | Flail topper |
No. of discs | 4/side mower 5 front mower |
5 / mower | – |
No. of top hats | 4/side mower 2 front mower |
2 / mower | – |
Blade attachment | Quick-change blades | Quick-change blades | – |
Cab | |||
Air seat | standard | standard | standard |
Passenger seat | standard | standard | standard |
Climatronic with cool box | standard | standard | standard |
BoIn-cab information system | standard | standard | standard |
Overall dimensions | |||
Transport width mm | 3,000 (9'10") | 3,000 (9'10") | 3,000 (9'10") |
Transport length mm | 8,180 (26'10") | 8,180 (26'10") | 8,180 (26'10") |
Transport height mm | 4,000 (13'2") | 4,000 (13'2") | 4,000 (13'2") |
Weight depending on specification Approx. kg/lbs | 14,500 / 31,966.7 | 14,500 / 31,966.7 | 14,500 / 31,966.7 |
Weight distribution front/rear axle Approx. % | 60/40 | 60/40 | 60/40 |
Tire size | |||
Front: Michelin MEGAXBIB 750/65 R26 | standard | standard | standard |
Rear: Michelin MEGAXBIB 580/70 R26 | standard | standard | standard |
Front: Michelin CARGOXBIB 750/60 R30.5 | option | option | option |
Rear: Michelin CARGOXBIB 600/60 R30.5 | option | option | option |