SPRING 750/20 R - ONIONS HARVESTER
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Spring 750/20 R - Onions Harvester
Automated harvest, professionally addressed to medium size companies.
Harvesting system for product already dig and placed in a row.
Strong construction and with low barycentre; hydraulic transmission independent from the tractor equipped with a pump flange-mounted on the pto; hydraulic movement of the shaft and steering tyres; control box placed inside the tractor cab; one group of hydraulic valves placed on top of the machine to control the rounds for minute of the various separating belts; these are the characteristics that allow the rational and efficient management of this model.
The wide selecting surfaces and the "Spring" harvesting system enable the separation of the soil without being aggressive and without forcing the products. In these models, products are collected by the first belt "cups" and then transported up to the hedgehog belt without any fall, where two opposite rotating rollers gently rise the products until the selection belt, while impurities run under the roller and are ejected from the machine or brought to the soil belt for a further selection.
The separate control of each active surface (sq 7,24) enables to rationally feed each selecting station, gibing a daily high productivity and awarding an excellence to the products quality.

Same characteristics as Spring 750/20 R for potatoes.
 
Model ONIONS HARVESTER SPRING 750/20 R
Dimensions - Lenght: mt. 7,10
- Witdh: mt. 2,70
- Height: mt. 2,63
- Weight: kg. 3400
- Required power: Hp 55
Transmission Hydraulic/electric with pump directly connected to the tractor pto.
Connection  Towed-hydraulic shaft for placing it outside the row.
Digging device -Made of: No. 2 rods with levelling stirrups; No. 1 reel with three rubber paddles driven by hydraulic motor with valve to control the rotary speed.
Belts - Harvesting belt with straight and bent rods alternate, Width=mm.740
- Leaves detaching belt with 4 small belts, Width=mm. 740
- Rear cross hedgehog belt, Width=mm. 700
- Selection belt, Width=mm. 690 + waste belt Width=mm. 250, with finger bars at each mm. 192
- Swan neck belt Width=mm 690
Speed of belt Independent by means of flux regulators and electro-valves groups.
Leaves separating devices - Leaves detaching belt placed on top of the harvesting belt
- Rubber plates placed on top of the leaves detaching belt.
Soil separating device - Rubber shakers connected to the harvesting belt.
- Hedgehog belt.
- Double rotary roller placed on top of the hedgehog belt.
- No. 3 groups of selecting disks, placed on top of the selection belt.
Axles Steering, hydraulic.
Products downloading In the hydraulic hopper (capacity 2,3 tons) with moving downloading belt, totally coated. Hydraulic speed, transmission and downloading height.
Maximum downloading height= mt. 3,6
No. of operators 2/3 + 1 tractor driver (max 5 persons + 1 tractor driver).
Production capacity 1,5 – 2,5 ha per day (8 working hours) considering an harvest of 40000 kg/ha.
Safety systems Main control box for tractor driver, complete with: emergency stop, horn, control levers for belts speed and inclination. Flux regulators placed at the selection belt.
Micro-switches for swan neck movement, rise of the hopper and download operations.
Other available devices - Potatoe digging - harvesting system.
- Frame and curtain for shadow.
- Lights for street.
- Hydraulic belt for collecting under-size products.
- Big bags device with hooks.