Harvesting sunflowers without loss of yield

During sunflower harvesting, the combine harvester’s header is the first point of contact with the plants, which requires sophisticated technology and gentle treatment of the crop. This is the key to reach the maximum yield during harvesting.

Optigép rázótálca

Seed can not fall to the ground

The low-profile OptiSun sunflower header, equipped with seed-collecting shaking trays, uses an eccentric-driven shaking arm to continuously transfer sunflower heads into the auger trough. The crop cannot accumulate, so the seeds are delivered to the inclined conveyor without loss. Not a single sunflower seed is left in the field, allowing more yield to be collected.

Optigép napraforgó adapter

Side extension

The design of the side walls
provides good row selection,
thus preventing the outer rows
from falling off the disc.

Safety Net

A 600 mm high safety net
protects the sunflower heads
from falling off

Asymmetric trays

The right and left-handed trays
ensure a continuous material
flow to the auger.

Row separators

The optimally designed plastic
row separators guides the plant
gently towards the shaking tray

The row separators lift and
guide the leaning or fallen
stems, thus the yield from
these can also be harvested.


Gentle with Sunflower

The ear chains placed on each row gently guide the sunflower stems towards the star-shaped cutting mechanism. Then, it leads them to the center conveyor, minimizing the mechanical stress on the plant. The OptiSun feeding system does not transfer the vibrations to the plant, thus preventing premature seed shedding.

Optigép NAS forgókés

Hectare is a friend the machine

The OptiSun combines loss-free harvesting with high working speed. Each row is equipped with a four-bladed rotary cutter and a counter-cutter, ensuring fast, low-energy cutting. The cut sunflower heads are gently transported to the center conveyor by ear chains, free from any shaking.

• Each blade is made of highly alloyed, hardened steel, providing good wear resistance.
• The counter-rotating blade system requires low power and cuts every stalk that comes into contact with it.
• The cutting mechanism's transfer chains are set to 8-12 km/h harvesting speed.

Maximum performance

The gathering auger with a diameter of 500 mm ensures a uniform crop flow even in the case of high-yielding plants. To prevent damage, it is equipped with a safety clutch. As a result, the NAS is perfectly suitable for high-speed harvesting of high-yielding crops.

Sorghum, hemp, and many others

The OptiSun adapters are specifically designed for the loss-free harvest of sunflower, but are also suitable for harvesting other specialty crops such as hemp or sorghum. It combines low seed loss with high-speed harvesting thanks to its unique gentle conveying system. During the design of the OptiSun, great emphasis was placed on careful and gentle plant handling.

Gondozásmentes hajtás


The machines' drive system is simple, transparent, and easy to maintain.
• The spare chain wheel is an accessory used to adjust the speed of the individual units of the adapter according to the requirements of the crop or the operator.
• Friction disc safety clutch to protect the gathering worm.
• Spring tightened chain mechanism

Reasons to choose OptiSun


Low crop loss

Based on the measured results, you can expect less than 0.5% yield loss, which ensures excellent return on investment.


Optimal crop flow

Thanks to the rounded trough shape and the 500 mm diameter feeder screw, the throughput capacity is very high even at low speeds, ensuring continuous crop flow and minimal operating and maintenance costs. While reducing costs, we also protect the crop and the environment.


Low power requirement

The cutting mechanism, which is made with optimized cutting angles, and the properly positioned feeder auger of the OptiSun adapter require low power input while providing efficient and reliable mechanical operation.


Easy to access components

Thanks to the easily accessible machine elements, occasional maintenance or replacement of worn parts can be done quickly and easily.

Product range

OptiSun adapters

Without stalk chopper

OptiSun Z adapters

With mechanic stalk chopper

PSM adapters

Hydrolic driven stalk chopper

Dimension table

Type of adapter Working dimensions Shipping dimensions
Name Number of rows Type of frame Row distance Length Width Height Length Width Height Weight
OptiSun-470 4 fix 70 cm 3040 mm 2200 mm 1500 mm 3040 mm 1200 mm 2300 mm 1020 kg
OptiSun-476 4 fix 76 cm 3226 mm 3226 mm 1125 kg
OptiSun-570 5 fix 70 cm 3740 mm 3740 mm 1110 kg
OptiSun-576 5 fix 76 cm 3988 mm 3988 mm 1190 kg
OptiSun-670 6 fix 70 cm 4440 mm 4440 mm 1270 kg
OptiSun-676 6 fix 76 cm 4750 mm 4750 mm 1420 kg
OptiSun-676 CS 6 collapsible 76 cm 4750 mm 4750 mm In working position 1790 kg
OptiSun-870 8 fix 70 cm 5840 mm 5840 mm 1200 mm 2300 mm 1640 kg
OptiSun-870 CS 8 collapsible 70 cm 5840 mm 5840 mm In working position 2040 kg
OptiSun-876 8 fix 76 cm 6274 mm 6274 mm 1200 mm 2300 mm 1710 kg
OptiSun-876 CS 8 collapsible 76 cm 6274 mm 6274 mm In working position 2200 kg
OptiSun-1270 12 fix 70 cm 8640 mm 8640 mm 1200 mm 1200 mm 2280 kg
OptiSun-1276 12 fix 76 cm 9322 mm 9322 mm 2640 kg
OptiSun-1670 16 fix 70 cm 11440 mm 11440 mm In working position 3790 kg
OptiSun-1676 16 fix 76 cm 12370 mm 12370 mm 4000 kg
OptiSun-670 Z 6 fix 70 cm 4450 mm 2400 mm 1500 mm 4450 mm In working position 1620 kg
OptiSun-676 Z 6 fix 76 cm 4760 mm 4760 mm 1810 kg
OptiSun-870 Z 8 fix 70 cm 5850 mm 5850 mm 2030 kg
OptiSun-876 Z 8 fix 76 cm 6284 mm 6284 mm 2130 kg
PSM-670 6 fix 76 cm 4440 mm 2400 mm 1800 mm 4440 mm In working position 2100 kg
PSM-670 CS 6 collapsible 70 cm 4440 mm 4440 mm 2650 kg
PSM-676 6 fix 76 cm 4750 mm 4750 mm 2200 kg
PSM-676 CS 6 collapsible 76 cm 4750 mm 4750 mm 2750 kg
PSM-870 8 fix 70 cm 5840 mm 5840 mm 2830 kg
PSM-870 CS 8 collapsible 70 cm 5840 mm 5840 mm 3320 kg
PSM-876 8 fix 76 cm 6274 mm 6274 mm 2930 kg
PSM-876 CS 8 collapsible 76 cm 6274 mm 6274 mm 3540 kg
PSM-1270 12 fix 70 cm 8640 mm 8640 mm 4200 kg
PSM-1276 12 fix 76 cm 9322 mm 9322 mm 4390 kg

For adapters that differ from the row spacing listed in the table, please contact us for more information. You can find our contact details in the Contact menu.