One end of the machine is fixed and other spans move clock wise by motor drive tires, which is called fixed center pivot system. River and bore well can be the water resource of the fixed point, the water transports through main pipes and sprinklers, finally applied to the field. The advantage of this system is to use less labor and water to irrigate 13-130ha from one water feeding point. Steel structure of special design can satisfy different lengths of the machine. One span with one overhang (80m) is the simplest machine you can choose for small land. The heavy duty design can be extended to more than 11 spans (650m) with the angles and bolt pivot anchors strong enough to fight windstorm.
Fixed hot dip galvanized steel central tower with:
Main Panel with Auto Shutdown & Auto reverse system;
Pivot point light;
Electrical collector ring.
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.
Start stop switch.
Forward / reverse contactors rated 600v at 30 amps.
Fuses – 30 amps.
– control power
– 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).
Under voltage relay.
Over current relay.
Low water pressure shut off.
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.
Model No.: PF15GF
Prime Power(kw/k VA): 15/19
Standby Power(kw/k VA): 16.5/20.9
Engine Model: 4L22BD-4
Alternator Model: FD1E
Dimensions(mm): 1360*560*885 Weight(kg): 420
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.
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
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
Quality standards: BS-729, ASTM-A123
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.
1.Traditional UMC coupler (left): no more used
2.UMC C-X Coupler (right)
Units come pre-assembled
Simple one wrench installation
UV stabilized Urethane puck
1. Cummins standard(left):
Material: Grey Iron HT250
Shaft Material: high-strength forged steel
Worm and gear pressure angle is 14 1/2 degree
2. Rainfine heavy duty(right):
Material: Ductile Iron HT300
Shaft Material: Steel 45
Worm and gear pressure angle is modified
150% improvement compare to the standard
Special designed for Sudan market where the pivot being used 300 days per year
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 with 14.9*24 rubber tire
Never flat / UV protection
Pad replacement / Non maintenance
Gooseneck:M X M, M X F, M X B, Furrow arm and standard
We use automatically controlled welding Robot to do the welding for pipes to ensure the quality. The welding line is in perfect quality for the span pipe welded by Robot. We introduce Form drill technology from Germany and use it in our pipe drill processing system. This technology can help the gooseneck to have a maximum connection to the pipe outlet holes and reduce the gooseneck damages during the sprinklers vibrating.
Contactor rated 600V at 16 amp min.
Alignment switches rated 277V at 15 amp tested to 10,000,000 cycles.
On-Off switch rated 600V at 10 amps.
– 4# 14 gauge, 6# 18 gauge
– 4# 12 gauge, 6# 14 gauge
– 4# 10 gauge, 6# 14gauge
– Inner PVC cover 30 mil thick
– 8 mil aluminum shield
– Outer high-density polyethylene cover is 15 mil thick
– Sunlight resistant
– Moisture and dirt protection
The high yield strength overhang cable is used in longer overhang. This design can help farmers to increase yield with less investment.
Corner control system for end gun
The end gun can switch on/off by solenoid valve when pivot moves to four corners. This valve is controlled by the switches in the pivot center.
The vast differences in crops, soils, farming practices and climatic conditions worldwide, coupled with regional differences in the availability of water and energy resources requires a diverse array of center pivot sprinkler performance. The sprinklers we choose for you are advanced designed to simplify the variety of sprinkler choices into one basic group of center pivot products.
A fixed-spray sprinkler which produces a variety of patterns dependent upon the specific spray plate;
Flip-over dual spray can allow easy conversion of the spray pattern;
Choose spray plate options to germinate, irrigate, chemigate;
Optional hose drag adapter for Low Energy Precision Application – LEPA;
Part circle available.
Outstanding uniformity and optimal droplets at low operating pressures;
Bracket unassembled, eliminate debris hang-up and water-pattern misting common to conventional sprinklers;
Long wear-life, reliable operation and durability;
Excellent water application, 10-20 PSI operating pressure;
Wind resistant, maximum water and energy conservation.
Greater throw radius. The wide water pattern from rotating streams equates to lower average application rates, longer soak time and reduces runoff;
High uniformity. Increase overlap from adjacent sprinklers improves uniformity;
Reduce wind drift and evaporative loss;
Part circle available.
Gentle rain at low pressure;
Utilize a free-spinning acting to produce a gentle, rain-like water pattern;
Designed for more sensitive crops and soils;
Superior uniformity with better overlap and lower application rates;
Crop-guarded body for low energy, down in the crop application;
Part circle available.
Minimized losses to wind drift, evaporation and runoff;
Multiple deflector pad design;
Rugged design for traveling through tall crops;
Low pressure – 6 to 15 psi;
Chemigation Pads produce an upward spray under the crop canopy;
Bubbler Pad applies water in a gentle, aerated pattern ideal for direct-to-furrow irrigation;
Unique off-center rotary action, outstanding uniformity;
Gentle, rain-like application;
Excellent distance of throw;
Low pressure operation from 10 to 20 psi, can mean big energy savings over the course of a year.
Large area of coverage
Ultra low pressure
Easy clean, easy change nozzle
Droplet size needed for type of soil
Excellent distance of throw
Wide variety of color-coded deflector pads to customize distribution pattern;
Full 360o spray pattern;
Low-pressure operation: 6-25 psi;
Chemigation pads and hose barb adapter available.
The capacity up 85 to 500 LPH The maximum pressure up to 12 bar Measuring accuracy reaches to +/- 2% Within the scope of 10% – 100% flow rate Temperatures of liquid between -10oc~40oC Max.Suct: 2 m Motor: Standard 220V/380V, 50HZ
This is an optional part when water is full of dirt. Normally each pivot needs one filter. The picture on the left below is a cluster system with 3 filters for 3 pivots nearby. The left second picture is the filter system being used together with segmented filter for drip irrigation.
Due to the objective factors such as the terrain, obstacles, house and so on, the pivot cannot work a full circle (360 degrees). This system can control the pivot to stop/reverse automatically without manual control.
Install a barricade on the last tower of the pivot, when the touch arm hits the barricade, the pivot can stop and reverse automatically;
This system include control box, sensor arm, traverse arm, cable and springs;
Safety and crash prevention;
Each span parts are packed into one wooden box with clear packing list. This makes it easier for installation.
All wooden boxes are made of export material.
500m fixed pivot(9 spans) can be loaded into 1 x 40’ HC container.
We will dispatch our engineers to organize the installation work but the owner will organize labors. Normally one 7 spans pivot needs 8 labors working 1 week for installation.
12. spare parts & gurantee
We will ship 2% spare parts together with the equipments in containers. The items of the spare parts will be listed on the contract.
Our local representatives or dealers will help farmers to replace the damaged parts when necessary.
1 year concerning electric equipment
10 years/10 000 working hours for gearboxes and gear motors whichever expires earlier
20 years concerning the galvanized equipment against corrosion
3 years for tires and rims