Production years
2014-present
Hagie sprayer ยท 2014-present
Hagie STS12 Sprayer
The Hagie STS12 is a 1,200-gallon high-clearance self-propelled sprayer with a distinctive front-mounted boom. It is well known for tall-crop capability, all-wheel steering, independent air-ride suspension, and excellent boom visibility; major specifications changed with the 2022 redesign.
Product tank capacity
1,200 US gal
Boom width options
90, 100, 120, or 132 ft
Engine
300 hp; John Deere PowerTech 9.0 L on 2022-current machines, earlier units used Cummins 6.7 L power
Hagie STS12 specifications
| Production years | 2014-present |
|---|---|
| Machine type | Self-propelled sprayer |
| Product tank capacity | 1,200 US gal |
| Boom width options | 90, 100, 120, or 132 ft |
| Engine | 300 hp; John Deere PowerTech 9.0 L on 2022-current machines, earlier units used Cummins 6.7 L power |
| Crop clearance | 74 in. with standard tires on 2022-current models |
| Weight | Approx. 31,500 lb with 120-ft boom on 2022-current models |
| Drive | Hydrostatic 4WD with wheel motors |
What the STS12 is used for
The STS12 is made for large-scale, high-clearance row-crop coverage. Its front boom gives the operator a direct view of boom placement, while the high underframe clearance and all-wheel steering target late-season work and reduced crop contact.
Owners value the STS12 for its tall-crop capability, maneuverability, ride quality, and front-boom stability. When shopping used, distinguish the earlier Hagie-built configurations from the redesigned 2022-current specification set.
Why the Hagie STS12 stands out
The STS12 is notable because its front-mounted hybrid boom, 74-inch current-model underframe clearance, all-wheel steering, and independent air-ride chassis create a very different operating feel from conventional rear-boom sprayers. The 1,200-gallon tank and up-to-132-foot boom keep it firmly in the large-acreage class.
Buying a used Hagie STS12
Inspect the front boom's center structure, fold hinges, breakaways, latch points, plumbing, height sensors, and any evidence of ground strikes. Test wheel motors, hydrostatic response, all-wheel steering, air suspension, tires, product pump, valves, cab electronics, display, guidance, and rate-control hardware; verify which engine, boom, and model-year configuration the machine actually has.
Hagie STS12 frequently asked questions
What is the Hagie STS12 tank capacity?
It has a 1,200 US-gallon stainless steel product tank.
How much crop clearance does an STS12 have?
The 2022-current STS12 is commonly specified with 74 inches of clearance on standard tires. Earlier units vary by tire and model year.
What engine is in an STS12?
Current machines use a 300 hp John Deere PowerTech 9.0 L engine, while earlier STS12 versions commonly used a Cummins 6.7 L engine. Confirm by model year and serial number.
Specifications are commonly cited figures for general reference; exact figures vary by year and serial number, so confirm against TractorData.com and the machine's records. Values and prices of used sprayers vary by condition, use, and region. Page updated Aug 4, 2026.