Upgrade your ranch: replace mechanical windmills with solar
Windmills fail when the wind dies in August — exactly when cattle need water most. Dankoff solar surface pumps provide dependable daily water yield without dangerous tower climbs, worn leathers, or broken gearboxes.
Get Windmill Replacement System Quote
Tell us your casing depth and daily water requirement — replace high-maintenance gearboxes with reliable solar.
960 FTmaximum total dynamic head delivered by the SolaRam — pushing water miles uphill
- Made in the USA since 1983 — the world's first solar pump manufacturer
- 15-20 year life expectancy with regular maintenance and user-replaceable wear parts
- Free system design: our engineers confirm every sizing before you buy
Why Growers & Ranchers Choose Dankoff Solar
Manufactured in the USA since 1983 — built for remote off-grid independence.
Zero Fuel & Power Bills
Operates 100% on direct sunshine with no batteries required for standard stock and irrigation setups.
Water When Needed Most
Sun-synchronous delivery ensures peak water volume during the hottest, driest months of the year.
Field Serviceable in Minutes
Solid cast iron and brass bodies with user-replaceable wear parts. No disposable plastic throwaways.
Certified Factory Sizing
Our engineers calculate pipe friction, total dynamic head, and exact PV array size free of charge.
Calculate Your System Requirements in 10 Seconds
Select your state and estimated daily gallons to see local peak sun hours and recommended pump model.
Size it in ten seconds
The windmill conversion package
Replace high-maintenance mechanical towers with ground-level solar panels and a heavy-duty Dankoff surface pump designed for high lift and long-distance transmission.
SolaRam Surface Pump
Heavy-duty cast iron high-lift pump capable of 960 ft (416 PSI) head for rugged ranch terrain.
SolarForce Piston Pump
Direct-drive piston pump providing up to 9 GPM and 230 ft head with exceptional mechanical efficiency.
Find Your Pump
Input your existing well depth and pipeline run to calculate the exact solar replacement.
Dankoff solar pump vs. traditional mechanical windmill
| Evaluation Factor | Dankoff Solar Pump | Mechanical Windmill |
|---|---|---|
| Peak production | Pumps maximum water during hot, sunny summer days | Least water during calm summer heat doldrums |
| Maintenance safety | All components at ground level (safe & easy) | Dangerous 30-ft tower climbs to grease gearboxes |
| Pipeline capability | Pushes over 1 mile uphill at 400+ PSI | Limited vertical lift and short distribution distance |
| Storm resistance | Low-profile solar array handles high winds | Vulnerable to high-wind blade and tower collapse |
Comparison based on Texas A&M AgriLife Extension ranch water management data.
“Replacing our two old Aermotor windmills with Dankoff solar pumps was the best investment we made on the ranch. Zero tower climbs and full tanks every August.”
— Cattle Rancher, West Texas
Common Questions & Technical Answers
Direct engineering answers to the sizing, installation, and field reliability questions we receive daily from ranchers and solar installers.
Have an unlisted question or complex site?
Our engineers in Santa Fe, NM and Frederick, OK calculate total dynamic head and friction loss for your exact setup.
+1 505-471-346901Can a solar pump push water as far as my windmill did?
Farther. While windmills are limited in pressure, the Dankoff SolaRam produces up to 416 PSI (960 ft TDH), pushing water over a mile through ranch distribution lines to multiple remote stock tanks.
02Is it difficult to convert an existing windmill well to solar?
No. The old drop pipe and sucker rods are removed, and a modern solar pumping system is installed with ground-mounted solar panels.