1.pivot point
Three or four wheels are assembled on the center part of the pivot, which makes it possible to be moved from one place to another by pulling the pivot point with tractors. This system is called towable center pivot. One machine can be used to irrigate two or three pieces of lands, which is more economical. Towable center pivot is available for safe towing maximum 500m.
Pivot point:
Leg angle size: L4″x4″
Riser: diameter 8” thickness 1/8”
Elbow: diameter 8” thickness 1/8”
It is a special design to form a solid anchor for even longest system.
Control panel:
Main breaker.
Control transformer.
Start stop switch.
Main contactor.
Monitoring indicators.
Forward / reverse contactors rated 600v at 30 amps.
Fuses – 30 amps.
Lightning arrestor
System monitors
– control power
– pressure guage
– last tower movement
– control circuit power
– safety circuit status
– reverse control circuit
– forward control circuit
– pump control circuit
– Monitors incoming 380V power.
Our main control also supports:
No water start stop.
Running direction (auto-stop/auto-reverse).
Speed adjusting.
Under voltage relay.
Over current relay.
Emergency stop.
Low water pressure shut off.
2.diesel generator
We can offer various diesel generators from 6 to 20kw for pivots. We can supply small diesel generators that most big brands do not with chinese best engine. We are able to supply any spare parts for these generators as well.
3.spans
Metallic zinc-coated Spans rubber-boot united between themselves, mounted on support of intermediate towers-each with two wheels, axles drive unit from electric geared motor to Wheels gearboxes; the electronic block of the system of the equalization and checking.
Truss design is the most important part on pivot parts on pivot irrigation system. The structural mechanics are precisely calculated by computer and tested in tough road. It can stand 20 years long lasting work without any bending or breakings.
Two options:
1. Galvanized pipe diameter 8”, 6 5/8”, 5 9/16”
2. Galvanized pipe with poly lining diameter 8”, 6 5/8”, 5 9/16” for special water
Galvanizing Kettle:
Inside Dimension: 14,000 long x 1,200 wide x 2,000 mm deep
By W. Pilling of Riepe, Germany, the world’s leading kettle manufacturer.
50mm wall thickness, European Special Grade Plate (see analysis below)
Typical Analysis: C, .08%; Mn, .5%; P, .02%; S, .02%; Si, traces only
Zinc Volume of Kettle: 90 tons
Weight of Kettle: 25,150 kgs
This flexible joint design can support all the strength of the pivot and maximum the flexibility of the pivot in rolling land. The aluminum coupler will break when the spans are not in proper alignment. This will cause the water leak and the water pressure loses. The control panel will switch off the system when the water pressure gets lower and stop the machine. The rubber boots can reduce the water friction and resistance.
We use high frequency electric heating system to heat both ends of the steel rods and use head forging machine to form them. When the rod being cut as the picture shows, you can find that the steel rod and the headed part are exactly the same molecular. This truss rod can stand 60,000psi yield strength. We use 22mm diameter rods instead of 19mm to make it stronger than other manufacturers.
Two options:
1. Standard(left):
Material: Grey Iron HT250
Shaft Material: high-strength forged steel
2. Heavy duty(right):
Material: Ductile Iron HT300
Shaft Material: Steel 45
Two options:
1. Rubber tire:
11.2*38: Good clearance and flotation
14.9*24: Tubeless tire 4ply, for heavier and longer spans
16.9*24: For longer spans more flotation
2. Plastic tire:
Rim: 10*38 with plastic pads (16 pcs×4kgs each)
Similar size to 14.9*24 rubber tire
Never flat / UV protection
Pad replacement / Non maintenance
