8120 Centre Pivot

precision irrigation

8120 Centre PIVOT


From pivot point to last span, Valley® engineers and manufactures center pivots to handle the full range of operating conditions that today’s growers need. Valley structures stand up to the toughest loads produced by rough terrain, deep furrows and long-span machines. It doesn’t matter if your field is large or small, rely on our Model 8120 center pivot to help you manage your farming operation and give you one less thing to worry about.The Valley Model 8120 series is the highest-performing, most reliable center pivot available anywhere, giving growers the greatest return on investment.
Top-of-the-Line Center Pivot for Long, Durable Life
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Precision Technology Integrations:

Remote Devices


Standard, low, high and ultra-high profile span options available.
Designed to accommodate large fields.
Valley spans are independently field-tested to outperform other brands under all field conditions.
With fewer drive units per pivot you have a lower per-hectare cost and less maintenance.


High (3.9-4m) and Ultra-High Profiles (4.9-5m)
The industry’s longest span of 72 meters
The Valley gearbox – the only gearbox made in the USA
Hot-dip galvanized
Precision Corner® options – maximize your irrigated acres
Bender30™ and Bender160™ – irrigate around obstacles
Multiple drive train and flotation options
Programmable controls
Remote communication
Corrosion resistant: Hot-dip galvanized
Built to last: Four-leg drive unit with braces
Made stronger: Heavy 8-bolt pipe flanges
Reduces downtime: Welded sprinkler coupler
Full wrap-around weldments
Minimal repair: Forged truss rod heads
Even distribution of loads: Uniform pipeline and truss rod crowns
Even loading: Tight contact of truss rod head in the socket
Leak-free: Polyurethane flange gaskets assure longer, leak-free life.


Pivot point options: 5", 6 5/8", 8 5/8", 10"
Maximum machine length: Up tp 24 Spans covering 853 meters
Towable pivot point options:  2-Wheel E-Z Tow, 4-Wheel E-Z Tow, Skid Tow
Pipe diameter options: 6", 6 5/8", 8 5/8", 10"
Span length options: 43-72 meters
Booster pump options: 2 HP, 5 HP, 7.5 HP+
Tire size options: 11.2-24, 11R-22.5 Recap, 14.9-24, Firestone Champion Hydro ND, 16.9-24, 11.2-38, 18.4-26
Crop clearance profile options: Low, standard, high and ultra-high
Engineered to operate under the most demanding conditions
Four-leg drive unit with braces
Heavy 8-bolt pipe flanges
Welded sprinkler coupler
Full wrap-around weldments
Forged truss rod heads
Uniform pipeline and truss rod crowns maintain even distribution of loads
Tight contact of truss rod head in the socket for even loading
Ball-and-Socket Connection Allows movement in all directions, which minimizes pipeline stress, reduces pressure loss, includes forged ball for long life

Special Features that enhance the durability of Valley Machines

Triple Lip Seal and Stainless Nipple

Provide long, leak-free life at low and high operating pressures.


Spread loads over a wide area for maximum durability.


Large transition radius and uniform loaded rod heads mean a lower concentration of stress and longer machine life.


Four braces on each side ensure stable operation in hilly conditions.


Cradle the pipe to create added strength. Heavy-duty gussets eliminate pipeline twist.


Offers more machine strength and stability as a result of evenly loaded truss angles and hot forged truss rods.


The single-piece, forged steel ball ensures smooth span movement in all directions, minimizing stress on the pipeline
for longer machine life.


The welded coupler strengthens the pipeline around the water outlet, minimizes pressure loss and provides better support for the sprinkler package.


Galvanized steel base construction with stainless steel shaft and nylon bearing assembly ensures long life.

drive train

You know the gearbox is the heart of your center pivot. If the gearbox isn’t working, the center pivot isn’t working.
That’s why Valley Irrigation is the only center pivot company in the world that manufactures its gearboxes in the USA.
Rather than buying the lower-cost gearboxes from overseas that our competitors use, the patented Valley gearbox is manufactured in Nebraska using only U.S. vendors that meet our quality standards.

Before it is shipped to you, each gearbox is extensively tested for functionality and durability. You can trust the Valley gearbox to provide you with long, trouble-free, economical equipment life


Large-capacity rubber diaphragm

Expands with heat and pressure to minimize water condensation.


Input and output bearings

American-made and case-hardened to provide the highest quality and load rating available in the industry.


Worm gear

High-strength ductile iron provides significantly longer wear life than steel and prevents gear tooth wear.


Tooth design

Industry-exclusive 25˚ tooth angle provides 40 percent more strength, longer life and better reliability in tough conditions compared to normal 14.5˚ tooth designs.


52:1 gear ratio

Full recessed tooth design keeps oil between engaged gears.


Threaded endcap

Allows accurate bearing preload to ensure long bearing life.


Expansion chamber

Cap made of corrosion-resistant cast aluminum; rubber diaphragm allows oil to expand and contract during operation. Vented cap prevents pressure buildup and prevents seal from leaking.


Largest bull gear neck and keyway

For extra strength in a critical
load-bearing area.


Bull gear

High-strength cast iron provides highest load capacity in the industry and longest life. Optional bronze gear is available for extreme conditions.


Multi-viscosity gearbox oil

Exceeds 85W-140 GL5 oil for long gear wear under extreme load conditions.


Longest output shaft (steel)

Exclusive to Valley gearboxes. Provides extra clearance between gearbox and wheel flange to reduce mud buildup, which reduces seal damage and extends
gearbox life.
X-Tech Drive
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X-Tech Centre Drive
The perfect combination of speed and power.

take control of every drop

VRI-iS: Variable Rate Irrigation Individual Sprinkler
Valley® VRI Individual Sprinkler control (VRI-iS) gives you the greatest level of control in center pivot water application. It gives you peace of mind knowing you're using valuable water resources wisely. Use your Valley VRI prescription to apply water when and where it's needed, and eliminate irrigating unnecessary areas in your fields. Use our advanced VRI software tool to prescribe the optimum application depth.
Copyright © 2021 Emmetts SA Pty Ltd
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