Precea precision air seeder

The flexible way to optimise yields for rigid and folding models 
Many Precea models can be optionally equipped with a hydraulic tramline offset. When the machine is tramlining, the PreTeC coulters, including the fertiliser coulters, are fully automatically pushed together and apart hydraulically without the seed rows being switched off. The seed rate therefore remains constant. As a result, row spacings of up to 115 cm are possible.

Asymmetric offset of a unit

The asymmetric offset actuates just the one cylinder. This means that only one unit is offset. The driver creates one wheel mark in the first pass. The second wheel mark is created in the second pass, so that following crop care machines, such as a crop protection sprayer, do not damage the crop thanks to the row shift. 

Your advantages with a hydraulic tramline offset: 

• Optimum yield potential since the seed rows do not need to be switched off, they are just offset 
• Relief for the driver by automatic detection and adaption to make the tramline 
• Lack of plant damage during subsequent working in the crop, as a result of the existing tramline 
• Optimum fertiliser supply since the fertiliser coulter and the singling unit are displaced together

Symmetric offset of two units

When offset symmetrically, the offsetting cylinders are actuated simultaneously on both sides of the machine. A tramline is therefore created in only one pass. The maximum offset distance of a unit is 400 mm. The offset travel can also be reduced if the entire width is not required due to track width or tyre size.

The mechanical fan is driven directly by the PTO shaft. Problem-free operation is also possible with tractors that have a low hydraulic capacity.

Hydraulic fan drive
The hydraulic fan drive facilitates convenient fan speed adjustment and thus ensures even longitudinal distribution, even in undulating terrain. The fan speed is set conveniently and independently from the engine speed, so that the revs always remain constant and run in the optimal range.

Air intake protection

An optional air intake protection is available for particularly dusty conditions, as any ingress of dirt and dust can effectively block the sensitive singling process.

The Precea lighting for road transport fulfils all road traffic requirements concerning transport safety. As an option, the Precea can be equipped with LED road traffic lights. Internal hopper lighting is also available.

Optional work lights on the seed hopper provide excellent visibility for the operator at night. By pivoting the LED lights, the working area to the side and behind the seed drill combination can be optimally lit. In addition, LED work lights which illuminate the coulter area are available as an option for the sowing coulters. All work lights can be switched on conveniently via the terminal.

The optional frame ballasting system allows stepless weight transfer from the tractor cab. Up to 600 kg is available when the machine is almost empty to ensure that the coulters can maintain that first-class work. The frame ballasting is especially recommended for use alongside hydraulic coulter pressure adjustment. 

The benefits:

• Even placement, even when the fertiliser hopper is running empty
• Comfortable handling

The optional HD tractor wheel track eradicators are useful for when working on compaction-sensitive soils and for reduced working depth. Overload protection ensures a constant trip force in all positions.

The benefits:

• Intense loosening directly behind the tractor track
• High flexibility with 3 point versions
• Vertically and horizontally adjustable

Depending on the choice made, the hydraulic system is available in two versions. There is the entry-level standard hydraulics, where every function has to be actuated from a spool valve on the tractor. For tractors with a limited number of spool valves, the Comfort hydraulics can be selected. Here the functions of wing and track marker folding can be combined via an electric changeover valve supplied by one spool valve.

Advantages of the comfort hydraulics:

• Fewer spool valves required
• Increased operational comfort through preselection of the function in the ISOBUS machine actuation
• Simple and fast change of any function