Gearboxes
For Seeders And Fertilizers Machines
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Key Sliding
The gearboxes for speed selection are applicable to systems of dosage of seeds and fertilizers in seeders to replace the old;train of chains and gears.
The system of key sliding has a specific number of speeds.
These kinds of system are managed by a different number of handles according to the model. It’s consisting of a couple of gears set for each handle.
The driven gear set is fixed to the shaft by a fixed key and the driver gear set has a sliding key that only gives transmission to one of the gears of the set.
In this way, according to the combination of the gear in the different shafts is the ratio of the gearbox. The position of the sliding key is managed by the handles.
General dimensions and dosing table 
General dimensions and dosing table
Characteristics | SW2006 | SW2010 | SW2011 | SW2015 | |
|---|---|---|---|---|---|
| Speed number | 54 | 16 | 27 | 32 (x2) | |
| Speed ratio | Range | 1:0.18 1:3.51 | 1:0.94 / 1:2.14 1:0.47 / 1:1.06 (***) ———– 1:0.44 / 1:2.65 1:0.38 / 1:2.24 (***) | 1:0.54 1:2.86 | 1:0.36 1:3.19 |
| Variation between speed | 3 – 12 % | 6 % ———– 12 % | 6 % | 5 – 12 % | |
| Torque [Kgm] | 18 | 12 | 8 | 12 | |
| Output sense | CW-CW (*) | CW-CW (*) | CW-CW (*) CW-CCW (**) | CW-CW (*) | |
Gear Sliding
The gearboxes for speed selection are applicable to systems of dosage of seeds and fertilizers in seeders replace the old train of chains and gears.The system of gear sliding has a specific number of speeds.
These kinds of system are managed by a different number of handles according to the model.
It’s consisting of a couple of Gears Sub-Assembly welded for each handle. Each Gears Sub-Assembly has 2 or 3 gears.There are the same number of fix and sliding Gears Sub-Assembly.
The position of the sliding Gears Sub-Assembly is managed by the handles. The handles move for both sides, movin;the Gears Sub-Assembly in order to make agree only one gear of each Gears Sub-Assembly. In this way, according to the combination of the gear in the different Gears Sub-Assembly is the ratio of the gearbox.
General dimensions and dosing table
General dimensions and dosing table
Characteristics | SW2003 | SW2003 A | SW2014 | |
|---|---|---|---|---|
| Speed number | 27 | 27 | 18 | |
| Speed ratio | Range | 1:0.45 1:1.98 | 1:0.45 1:1.98 | 1:0.45 1:1.19 |
| Variation between speed | 6 % | 6 % | 6 % | |
| Torque [Kgm] | 8 | 18 | 24 | |
| Output sense | CW-CCW (*) | CW-CCW (*) | CW-CCW (*) |
Flexible transmission-Gearbox S. P. 910
The flexible shaft system is designed to operate all types of dispensers whether mechanical or pneumatic (max torque on the plate 3 Kgm) and for a rotation speed between 0 to 100 r.p.m. Download technical sheet (in Spanish) 
In addition, it could be placed the S. P. 911 gearbox (cut per line): it is placed in the flexible transmission, one for each line. Drive 12V 750 mA. (The solenoid is energized only to cut off the drive – (Normal closed NC)
Housing Material: cast aluminum
Shafts/ gears: SAE 8620 steel-hardened
Support shafts: sealed bearings
Lubrication: Multi-Use lithium grease NLGI 2-75 GR.
Flexible transmission vs square boxes and cardan bar system
- Accuracy rotation
- Greater flexibility
- Rotations Instantaneity between input and output.
- Absorbs planting row-unit misalignments
- Low rated and constant
- Torque Constant angular velocity is independent of parallelogram movements which enable better planting quality.
- Lower weight. Moisture-proof, dust-proof, etc.
- Easy installation.
- Durability Maintenance-free Line cutting (electric or manual) can be added.
Encoding
Box coding: 001860 – SP910 (786.6-138E)
Factory ID: 001860
Box name: SP910
Center distance: 786.6 mm
Number of links: 138
Distance between centers
Overall Dimensions
Installation
The golden bushing must be placed on the traction side at the bottom, taking care that the fronts of the two gearboxes are parallel (marked with red lines)
Square gearboxes SW2030 and SW2035 / 90 degrees power transmission.
A square gearbox can be placed at the input (Drive) and another at the output (on the axis of the dispenser), and connecting them with a cardan and thus avoid the use of chains. All parts are machined on CNC machines under strict quality control.
Gearbox S.W. 2030: Large square box cod. 001570, used to transmit to all planting lines. Download technical sheet (in Spanish)
Housing Material: cast aluminum
Shafts/ gears: SAE 8620 steel hardened
Support shafts: sealed bearings
Lubrication: Multi-Use lithium grease NLGI 2-75 GR.
Housing Material: cast aluminum
Shafts/ gears: SAE 8620 steel hardened
Support shafts: sealed bearings
Lubrication: Multi-Use lithium grease NLGI 2-75 GR.
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