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AGRICULTURAL APPLICATIONS

CONFIGURE your product

RECOMMENDED PRODUCTS

GEARBOX 7.8 M-11.8 R- 3.7 A-1A

GEARBOX 3.28 M-66 A-4 A

GEARBOX 3.5 M-31.6 A- 624C

GEARBOX 6.9 M-25.8 A-624A

GEARBOX 6.9 M-25.8 R- 7.4 A-624E

P.T.O. generators

They are electric energy generators able to take place of the fixed ones when latter are out of order. 

They can be with gasoline or diesel engine, or driven by the tractor P.T.O. through a cardan shaft. In the last case it is necessary to fit a multiplier unit between the tractor and the generator in order to have the synchronous number of revolutions. 

As there are 50 Hz of frequency, the synchronous revolutions are:

 

120 x f 6000

N = ----------------     =   --------------- 

N poli N poli

If the generator has two poles you will have n=3000 rev./min.; if it has four poles you will have n=1500 rev./min.

 

Depending on supplied voltage and current, the generator power is worth:

 

P = V.I: cos ? con cos ? mediamente 0,8 and it is expressed in kw

 

The V.I. product has a practical value and is expressed in KVA (Kilovoltampere). 

 

As the gearbox has a fixed ratio and when a definite number of revolution is required at the output, it is necessary to adjust the tractor so to assign an established rate to the P.T.O.

 

Gearboxes for this kind of machine

  • A.1 B (9.600.302.30)
  • A.624 B,C,E,F (9.624.322.20)
  • A.4 A.F (9.603.216)
  • A.629 A

 

Herewith below is a table with the most significant rates to select your own multiplier unit.

 

Gearbox

Ratio

N° Poles

RPM

Power

KVA

Input

Output

CV

KV

A.1 B

1 : 7

2

3000

429

13

10

10

A.624

1 :6,9

2

3000

435

30

22

22

A.624

1 :3,5

4

1500

429

41

30

30

A.4 A

1 :3,8

4

1500

395

75

55

55

A.629 A

1 :1,77 

4

1500

874

177

130

130

 

The range of P.T.O. drive shaft normally used on this type of machine is: 

Series: T  Type:  20 / 40 / 60 / 80 

Ex.: 07.225.015.10 / 07.425.023.10 / 07.825.013.10

 

 

- Recommended code list

9.600.302.30

9.624.322.20

9.603.216

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