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HARDI best in class with DELTA FORCE AntiYaw

10/12/2019

Minimise the environmental impact by avoiding double sprayed areas with HARDI AntiYaw
New test proves that the HARDI DELTA FORCE boom is performing best in class in avoiding yaw movements.

HARDI Commander 5500 – 36 m DELTA FORCE

The purpose of this activity is to investigate the stability of the spray boom and the importance of the stability to the precision of plant protection products, with a view to elucidating possible under- / overdose during treatment.

All sprayers with 36 m boom
Speed 8 km/h; boom height: 70 cm; Boom control active

Prepared for:
Environmental Pro tection Agency
Tolderlundsvej 5
5000 Odense C

Compiled by:
Institute of Technology
Agro Food Park 15
8200 Aarhus N

Test method
The test is carried out in accordance with ISO 14131: 2007 section 5.3 'Tests on tracks' which specifies ISO 5008 'Smoother Track' as a suitable track. ISO 5008 'Smoother Track' is laid on an asphalt area at Test Center Bygholm, Horsens, DK, and the areas around the track have been rejected immediately before the test to ensure uniform conditions for the boom height sensors.

As the test track is higher than the surrounding, a 70 cm working height is chosen for the test.

 

Horsch 6 LT

Amazone UX6201

Dammann 10000 Tandem DAS

HARDI COMMANDER 5500 DDZ

Boom Center min. height

67 cm

64 (65) cm

70 cm

72 cm

Boom center maximum height

81 cm

82 (87) cm

87 cm

90 cm

Difference min / max

15 cm

17 (22) cm

17 cm

18 cm

Boom tip maximum height

85 cm

84 (98) cm

99 cm

92 cm

Higher than center

4 cm

2 (11) cm

12 cm

2 cm

Tilt fluctuation SD

7 cm

11 (13) cm

11 cm

16 cm

Peak to peak (max 3 sec)

26 cm

40 (71) cm

38 cm

74 cm

Yaw fluctuated SD

25 cm

13 (17) cm

10 cm

13 cm

Peak to peak (max 3 sec)

110 cm

59 (81) cm

48 cm

78 cm

Distance between boom center and measuring point

15,98 m

10,44 (17,2) m

14,8 m

14,91 m

SD is the standard deviation out of 12 measurements calculated to 18 m distance from the boom center. The sensors had been in different position on the boom wing. The difference between the Amazone data is due to this sensor position.

Classification
The data has a variation due to different tractor and sprayer specification. The wheels, the length of the sprayer and the position of the sensors on the boom require a classification in a range; otherwise, the measuring failure is not covered. We in HARDI use a classification scheme for some years, when we verify new boom management software on our different booms.

 

Horsch

Amazone

Dammann

HARDI

 

XXXX

XXX

XX

X

Difference min / max

XXXX

XXXX

XXXX

XXXX

 

< 20 cm

20 - 25 cm

25 - 50 cm

> 50 cm

Boom tip higher than center

XXX

XXXX

X

XXXX

 

< 3 cm

3 - 6 cm

6 - 9 cm

> 9 cm

Tilt fluctuation SD

XXXX

XXX

XXX

XXX

 

< 10 cm

10 - 20 cm

20 - 30 cm

> 30 cm

Peak to peak (max 3 sec)

XXXX

XXX

XXXX

XXX

 

< 40 cm

40 - 80 cm

80 - 120 cm

> 120 cm

Yaw fluctuated SD

XX

XXX

XXX

XXX

 

< 10 cm

10 - 20 cm

20 - 30 cm

> 30 cm

Peak to peak (max 3 sec)

XX

XXX

XXX

XXX

 

< 40 cm

40 - 80 cm

80 - 120 cm

> 120 cm

Conclusion

All sprayers show a good performance under these test conditions.

The height movement is not from major importance, as nozzles have a proven cross distribution by working heights from 30 – 70 cm. The risk of higher drift is given, when the nozzles are too high. For that it is interesting to look on the maximum boom tip value compared to center.

The yaw movement is influencing the length distribution here a big movement can have a large impact. In this test, the sprayers are not turning, so this negative result gets far higher when working in curves, or after turning. But already here are differences visible between different boom designs.

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Download the full report from Technological Institute in Denmark

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