Overview
The CaseIH STX530QT Quadtrac is an articulated crawler farm tractor manufactured in Fargo, North Dakota, between 2006 and 2007. It is powered by a Cummins 14.9L 6-cylinder turbocharged diesel engine rated at 535 hp and features a 16-speed full power shift transmission. The machine has an operating weight of 52,410 lbs and utilizes a crawler drive system with track width options of 30 or 36 inches.
Ideal Applications
Tested Drawbar and PTO Performance:
OECD Tractor Test 1911 recorded a maximum drawbar pull of 50,065 lbs and a maximum PTO power output of 534.72 hp.
Hitch and Hydraulic Configuration:
This model is equipped with a Type 4N rear hitch with a 19,728 lb lift capacity and a pressure flow compensated hydraulic system providing a 42 gpm pump flow.
Engine and Fuel Specifications:
The 912 ci Cummins QSX15 engine features a 300-gallon fuel tank and demonstrated a fuel consumption rate of 29.3 gallons per hour at maximum power.
Production
| Description | Articulated Crawler tractor / Built in Fargo, North Dakota, USA |
|---|---|
| Manufacturer | CaseIH |
Engine
| Engine type | Cummins 14.9L 6-cyl diesel |
|---|---|
| Fuel tank | 300 gal (1135.5 L) |
| Air cleaner | dual paper elements |
| Bore/Stroke | 5.394x6.654 inches (137 x 169 mm) |
| Compression | 17:1 |
| Description | Cummins QSX15 / turbocharged diesel / 6-cylinder 24-valve / liquid-cooled |
| Displacement | 912 ci (14.9 L) |
| Power | 535 hp (398.9 kW) |
| Rated RPM | 2100 |
| Starter volts | 24 |
| Drawbar (tested) | 406.28 hp (303.0 kW) |
| PTO (claimed) | 473 hp (352.7 kW) |
| PTO (tested) | 534.72 hp (398.7 kW) |
Transmission
| Clutch | electro-hydraulic wet disc |
|---|---|
| Gears | 16 forward and 2 reverse |
| Transmission type | 16-speed full power shift |
| Type | full power shift |
Mechanical
| Description | Integrated hydraulic wet disc brakes / Surveyor cab standard with air-conditioning. Optional luxury cab with leather trim and seating. |
|---|---|
| Drive | articulated crawler |
| Final drives | offset 3-planetary |
| Steering | hydrostatic power |
Hydraulics
| Pump flow | 42 gpm (159.0 lpm) |
|---|---|
| Type | pressure flow compensated |
| Valves | 4 to 5 |
Hitch
| Rear lift (at 24"/610mm) | 19,728 lbs (8948 kg) |
|---|---|
| Rear Type | 4N |
PTO
| Rear PTO | independent OptOptional |
|---|---|
| Rear PTO Type | 1000 (1.75) |
Electrical
| Battery volts | 12 |
|---|---|
| Ground | negative |
Dimensions & Tires
| Wheelbase | 154 inches (391 cm) |
|---|
CaseIH STX530QT Tracks
| Width | 30 inches (76 cm) / 36 inches (91 cm) |
|---|
CaseIH STX530QT Weight
| Max capacity | 54000 lbs (24494 kg) |
|---|---|
| Operating | 52410 lbs (23773 kg) |
| Shipping | 51000 lbs (23133 kg) |
Dimensions & Tracks
| Description | 30-inch tracks |
|---|---|
| Weight | 51000 to 52410 pounds |
| Wheelbase | 154 inches (391 cm) |
OCED Tractor Test 1911
| Description | Diesel 16-speed crawlerOctober 2 - 24, 2007Link: OCED Tractor Test 1911 file / PTO performance / Drawbar performance / Gear 4 used for power test. / Gear 3 used for pull test. |
|---|---|
| Fuel use | 29.3 gal/hour (110.9 l/hour) / 27.7 gal/hour (104.8 l/hour) / 28.2 gal/hour (106.7 l/hour) / 27.1 gal/hour (102.6 l/hour) |
| Max power | 534.72 hp (398.7 kW) / 406.28 hp (303.0 kW) |
| Max pull | 50065 lbs (22709 kg) |
| Power at rated engine speed | 473.65 hp (353.2 kW) |
| Power at rated PTO speed | 501.68 hp (374.1 kW) |
References
| Description | STX Series Steiger Tractors published in 2006, by CaseIH |
|---|
Variants
| STX530 | wheeled tractor |
|---|---|
| STX530QT | crawler |