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Mounted mower SD-28L
disc2 blades7 discs

Mounted mower - SD-28L - Ravak a.s. - disc / 2 blades / 7 discs
Mounted mower - SD-28L - Ravak a.s. - disc / 2 blades / 7 discs
Mounted mower - SD-28L - Ravak a.s. - disc / 2 blades / 7 discs - image - 2
Mounted mower - SD-28L - Ravak a.s. - disc / 2 blades / 7 discs - image - 3
Mounted mower - SD-28L - Ravak a.s. - disc / 2 blades / 7 discs - image - 4
Mounted mower - SD-28L - Ravak a.s. - disc / 2 blades / 7 discs - image - 5
Mounted mower - SD-28L - Ravak a.s. - disc / 2 blades / 7 discs - image - 6
Mounted mower - SD-28L - Ravak a.s. - disc / 2 blades / 7 discs - image - 7
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Characteristics

Mounting
mounted
Technology
disc
Number of blades
2 blades
Number of discs
7 discs
Other characteristic
PTO-driven, folding, lightweight
Working width

2.8 m
(9'02" )

Power required

42 kW
(57.1 hp)

PTO speed

540 rpm
(3,392.9 rad.min-1)

Weight

555 kg
(1,223.6 lb)

Description

Lightweight design
Low weight allows mounting on tractors from 30 kW (41 HP). Suitable for hilly terrain, small meadows and operations requiring frequent transport.

Spring suspension
The spring suspension compensates for uneven ground, protects the crop and the machine, and ensures consistent ground following.

Oil-filled cutter bar
A sealed oil-bath cutter bar available up to 7 discs delivers smooth, quiet operation and reduces upkeep requirements.

Easy maintenance
Few moving parts, easy blade access and standardized components simplify routine maintenance and spare parts handling.

Easy and safe transport
Hydraulic folding to transport position with standard warning panels, lights and reflectors enables quick and safe transfers on public roads.

Technical data
  • Models: SD-20L / SD-24L (SD-28L variant)
  • Conditioner: no (all models)
  • Max. working width: SD-20L = 2.03 m; SD-24L = 2.38 m; SD-28L = 2.80 m
  • Transport width: 1.91 m (all models)
  • Transport height: SD-20L = 2.86 m; SD-24L = 3.21 m; SD-28L = 3.61 m
  • Number of discs: SD-20L = 5; SD-24L = 6; SD-28L = 7
  • Blades per disc: 2 (all models)
  • Blade size: SD-20L = 108 x 50 x 4 mm; SD-24L & SD-28L = 100 x 50 x 4 mm
  • Quick-release blade: SD-20L = no; SD-24L = yes; SD-28L = yes
  • Stubble height: adjustable 40–70 mm
  • Max. mowing capacity: SD-20L = 2 ha/h; SD-24L = 2.3 ha/h; SD-28L = 2.7 ha/h
  • Minimum tractor power: SD-20L = 30 kW / 41 HP; SD-24L = 38 kW / 51 HP; SD-28L = 42 kW / 57 HP
  • PTO speed: 540 RPM (all models)
  • Weights: SD-20L = 456 kg; SD-24L = 510 kg; SD-28L = 555 kg


Characteristics / technical specifications
  • Product family: Lightweight disc mowers — models SD-20L and SD-24L (SD-28L shown as variant).
  • Designed for small tractors from 30 kW (41 HP); suitable for hilly terrain and small meadows.
  • Spring suspension for terrain compensation and crop protection.
  • Sealed oil-filled cutter bar up to 7 discs for smooth, quiet operation and reduced maintenance.
  • Quick-release blades on SD-24L and SD-28L; SD-20L uses standard blade fastening.
  • Blade dimensions: SD-20L = 108 x 50 x 4 mm; SD-24L & SD-28L = 100 x 50 x 4 mm.
  • Adjustable stubble height 40–70 mm.
  • Maximum mowing capacity and recommended minimum tractor power specified per model.
  • PTO speed 540 RPM for all models.
  • Compact transport width 1.91 m for road transport; transport height varies by model.
  • Weights per model: SD-20L = 456 kg; SD-24L = 510 kg; SD-28L = 555 kg.

Catalogs

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.