Front mower GMD 15030

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Overview
The GMD 15030 combines exceptional performance and compactness during transport. It is a 14.50 metres working-width mounted triple-disc mower designed for farms and contractors seeking very high work output. Equipped with KUHN technologies, it delivers high mowing quality, reliable power transmission and advanced operator control options.

Key design and productivity features

• Working width: 14.50 m (exclusive wide-width mounted mower segment).
• Four aligned cutter bars, each fitted with 7 discs (total 28 discs).
• Patented gearbox providing perfect cutter-bar synchronisation regardless of cutter-bar position; enables very compact folding and efficient mechanical power transmission.
• Unique folding kinematics: cutter bars fold at an angle close to 180° to achieve compact transport dimensions (under 3.00 m width and under 3.80 m height).
• Designed to increase productivity: work output up to 20 ha/h at 15 km/h; yield reported up to ~50% higher than traditional triple mower combinations in comparable conditions.
• Compatible combinations: used with 3.10 m or 3.50 m front mowers; overlap widths vary (examples: 46 cm with GMD 3125 F, 66 cm with GMD 3525 F) to ensure clean coverage on slopes and curves.

Control, comfort and automation

• Two control solutions available: standard KFA 12 control box (cab-mounted) for intuitive economical control of suspension, transport/work switching and independent lifting; or ISOBUS MOWER CONTROL for advanced features and ISOBUS integration.
• ISOBUS MOWER CONTROL supports operation via an ISOBUS terminal (tractor or KUHN CCI 60/800/1200) or AUX‑N certified joystick.
• Automation available: headland sequences and TC‑Section Control (automated raising/lowering of individual mower units at headlands) for greater ease of driving and productivity.

Ground following, suspension and safety

• LIFT‑CONTROL hydro‑pneumatic suspension system provides constant and uniform ground pressure, improving cut quality and reducing impurities and wear.
• NON‑STOP safety system with dual pivot behavior: pivot rearwards on outside impacts and pivot around central connection on inside impacts; mower automatically returns to working position after obstacle clearance.
• Friction clutches on the drive protect cutter bars and transmission in overload situations.

Mowing quality and cutter bar technology

• OPTIDISC ELITE cutter bar: designed for clean, consistent cutting in varied conditions (slopes, wet or sticky grass) with optimized disc spacing and overlap geometry.
• Cutter bar components for durability: double-row angular contact bearings, large-diameter forged steel gearwheels (3 cogs engaged), 3-point bearing mounting with long through bolts.
• PROTECTADRIVE safety concept: in the event of a violent impact a shear groove allows the shaft to protect internal components and enable fast, economical repair.

Maintenance and serviceability

• OPTIDISC ELITE cutter bar lubricated for life—minimised routine maintenance.
• FAST‑FIT quick-release knife system enables knife replacement in minutes and reduces downtime; robust fastener retention via a powerful leaf spring.
• Routine maintenance limited to a few lubrication points on transmissions and pivot points with long service intervals.

Drive and transmissions

• 100% mechanical drive delivering robust, reliable power transmission.
• Patented gearbox ensures synchronisation and compact folding; cutter bars keep synchronised whatever folding/working position.
• Friction clutches protect cutter bars in overloads; mechanical design focused on reliability in professional use.

Practical advantages

• Compact transport dimensions for improved road safety and convenience (width < 3 m, height < 3.8 m).
• High work output enabling efficient harvesting within short weather windows for large farms and contractors.
• Advanced ISOBUS features and options for improved ergonomics and automation of mowing operations.

Characteristics / spécifications techniques

• Commercial name (model): GMD 15030
• Working width: 14.50 m
• Cutter bars: 4 aligned bars × 7 discs per bar (28 discs total)
• Cutter bar type: OPTIDISC ELITE
• Drive: 100% mechanical drive; patented synchronising gearbox
• Safety: PROTECTADRIVE (shear protection), NON‑STOP safety with dual pivot behaviour
• Suspension: LIFT‑CONTROL hydro‑pneumatic suspension system
• Control options: standard KFA 12 control box; optional ISOBUS MOWER CONTROL (CCI terminals or AUX‑N joystick); TC‑Section Control and headland sequences
• Folding: exclusive kinematics for near‑180° folding; transport width < 3.00 m and height < 3.80 m
• Cutter bar articulation: independent articulation for each side cutter bar; cutter bars can move independently from -4° to +6°
• Knife system: FAST‑FIT quick‑release knives; cutter bar lubricated for life
• Recommended combinations: front mowers 3.10 m or 3.50 m (examples cited GMD 3125 F, GMD 3525 F)
• Typical productivity example: up to 20 ha/h at 15 km/h (depending on conditions)