CaseIH STX530QT Quadtrac

The CaseIH STX530QT Quadtrac is a tractor produced by Caseih. It is equipped with a 912 ci 14.9 L engine. The listed engine power is Diesel (listed): 535 hp / 398.9 kW. Transmission: 16 forward and 2 reverse. Drive type: articulated crawler. Operating weight: 51000 to 52410 pounds.

Engine Power

Diesel (listed): 535 hp / 398.9 kW

Drive & Traction

articulated crawler

Fuel & Capacities

300 gal 1135.5 L

Transmission

16 forward and 2 reverse

Operating Weight

51000 to 52410 pounds

Overview

	2006 - 2007 Quadtrac SeriesArticulated Crawler tractor Quadtrac Series Articulated Crawler tractor

Production
Manufacturer	CaseIH
Articulated Crawler tractor
Built in Fargo, North Dakota, USA

Variants
STX530	wheeled tractor
STX530QT	crawler

CaseIH STX530QT Engine
Cummins 14.9L 6-cyl diesel
Fuel tank	300 gal 1135.5 L
Engine details ...

CaseIH STX530QT Transmission
16-speed full power shift
Transmission details ...

CaseIH STX530QT Power
Engine	535 hp 398.9 kW
PTO (claimed)	473 hp 352.7 kW
Drawbar (tested)	406.28 hp 303.0 kW
PTO (tested)	534.72 hp 398.7 kW
Performance test details ...

Mechanical
Drive	articulated crawler
Final drives	offset 3-planetary
Steering	hydrostatic power
Integrated hydraulic wet disc brakes
Surveyor cab standard with air-conditioning. Optional luxury cab with leather trim and seating.

Hydraulics
Type	pressure flow compensated
Valves	4 to 5
	4 to 9 (without 3-point hitch)
Pump flow	42 gpm 159.0 lpm
	57 gpm (High-Flow) 215.7 lpm
	94 gpm (Twin-Flow) 355.8 lpm

Tractor hitch
Rear Type	4N
Rear lift (at 24"/610mm)	19,728 lbs 8948 kg

Power Take-off (PTO)
Rear PTO	independent OptOptional
Rear PTO Type	1000 (1.75)

Dimensions & Tracks
Wheelbase	154 inches 391 cm
Weight	51000 to 52410 pounds
30-inch tracks
Full dimensions and tracks ...

Electrical
Ground	negative
Battery volts	12

References

STX Series Steiger Tractors published in 2006, by CaseIH

Engine

Engine Detail — 912 ci / 14.9 L Diesel

Manufacturer	Cummins QSX15
Configuration	turbocharged diesel, 6-cylinder 24-valve, liquid-cooled
Displacement	912 ci 14.9 L
Bore/Stroke	5.394x6.654 inches 137 x 169 mm
Power	535 hp 398.9 kW
Air cleaner	dual paper elements
Compression	17:1
Rated RPM	2100
Starter volts	24

Transmission

Transmission — 16 forward and 2 reverse full power shift

Type	full power shift
Gears	16 forward and 2 reverse
Clutch	electro-hydraulic wet disc

Dimensions

CaseIH STX530QT Tracks
Width	30 inches 76 cm
Width	36 inches 91 cm

Dimensions
Wheelbase	154 inches 391 cm

CaseIH STX530QT Weight
Shipping	51000 lbs 23133 kg
Operating	52410 lbs 23773 kg
Max capacity	54000 lbs 24494 kg

Tests

OCED Tractor Test 1911
Diesel 16-speed crawler October 2 - 24, 2007 Link: OCED Tractor Test 1911 file
PTO performance
Max power	534.72 hp 398.7 kW
Fuel use	29.3 gal/hour 110.9 l/hour
Power at rated engine speed	473.65 hp 353.2 kW
Fuel use	27.7 gal/hour 104.8 l/hour
Power at rated PTO speed	501.68 hp 374.1 kW
Fuel use	28.2 gal/hour 106.7 l/hour
Drawbar performance
Max power	406.28 hp 303.0 kW
Fuel use	27.1 gal/hour 102.6 l/hour
Gear 4 used for power test.
Max pull	50065 lbs 22709 kg
Gear 3 used for pull test.

Photos

CaseIH STX530QT Quadtrac

Case IH STX530 Quadtrac.

Recommended Implements & Sizing Guide

Engineering recommendations for Caseih STX530QT Quadtrac based on its 535 HP power envelope and ASAE agricultural standards.

Implement & Operation	Recommended Size	Workload Rating	Engineering Notes
Moldboard PlowPrimary Tillage	8+ Bottom On-Land Hitch8+ 铧重型机外牵引犁	Commercial / Field Scale	High horsepower articulated/4WD field plowing.
Rotary Cutter / MowerMowing & Clearing	15 to 20 ft Batwing4.6 - 6.1 m 宽幅折叠翼	Commercial / Field Scale	Large commercial field and roadside mowing operations.
Rotary TillerSeedbed Prep	90 to 120 in Heavy Duty230 - 300 cm 重型旋耕机	Commercial / Field Scale	Deep intensive seedbed preparation for commercial row crops.
Disc HarrowSecondary Tillage	24 to 36 ft Heavy Duty Field Disc7.3 - 11.0 m 超宽重型整地耙	Commercial / Field Scale	Broad-acre grain tillage for high-drawbar tractors.
Hay BalerHay & Forage	Large Square Baler (3x4 or 4x4)大方捆商用打捆机 (1.2x1.2 m)	Commercial / Field Scale	High-capacity commercial forage harvesting (1000 RPM PTO).

Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.

Fluids, Capacities & Working Autonomy

Standard fluid requirements, service intervals, and continuous runtime estimates for Caseih STX530QT Quadtrac.

Estimated Continuous Field Runtime: 10.8 hrs

Approximately 10.8 hours of continuous field operation at ~75% rated power on a full tank (300 gal / 1135.6 L).

Estimated 75% Load Fuel Burn~27.8 gal/hr (105.3 L/hr)

Engine Crankcase Oil

SAE 15W-40 (Heavy Duty Diesel)

Standard Spec: API CK-4 / CJ-4 Heavy Duty

Service Interval: 150 – 250 Hours

Transmission & Hydraulic System

UTTO (Universal Tractor Transmission Oil)

Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)

Service Interval: 600 – 1000 Hours

Engine Cooling System

50/50 Ethylene Glycol Pre-mix

Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze

Service Interval: 2 Years / 1500 Hours