Built for power, reliability, low maintenance, excellent fuel economy and low emissions.
Powerful PerformanceThe Cat® C9 electronically controlled ACERT delivers power while meeting all current Tier 2 emission standards. All models contain a fuel/water separator, engine air intake heater and a dual-stage combination air cleaner with pre-cleaner.
High Capacity Cooling SystemThe side-by-side radiator/oil cooler gives excellent cooling capacity for high production bunching and harvesting. The optional on-demand Flexxaire™ fan activates only when required and allows the cooling fan to purge debris from the radiator area, keeping a cleaner cooling system. The IQAN control system infinitely controls blade pitch angle to reduce horsepower demand from the cooling package, and lower operating costs.
Engine OilCaterpillar® engine oil is formulated to optimize engine life and performance and is recommended for use in Cat diesel engines. The engine oil change interval has been increased to 500 hours.
ServiceThe clamshell engine compartment provides easy access to oil filters, oil dipstick, hydraulic fill pump and hoses reducing maintenance time.
Low Exhaust EmissionsThe Cat C9 ACERT engine is a low emission engine designed to meet US EPA off-road Tier 2 emission regulations.
Pony TankAn optional add on fuel tank is available for all 500 ZTS track feller buncher and track harvester models. The additional 90 gallon fuel capacity allows for increased work hours and productivity by reducing work stoppages needed for refueling machines.
BatteriesAn optional starting aid for colder climates is available for all 500 ZTS track feller buncher and harvester models. This option provides two (2) additional batteries, a HD starter, and HD battery cables.
Powerful hydraulic system combined with a powerful boom and stick maximize productivity in any felling or harvesting job.
Electric Hydraulic Oil fill PumpThe hydraulic oil site gauge provides easy visibility to know when hydraulic oil needs to be added. An easy accessible service wand allows hydraulic oil to be pumped through the hydraulic filtering system and into the tank. This reduces maintenance time and helps to maintain oil cleanliness requirements.
Variable Displacement PumpCat® 511 ZTS Track Feller Bunchers and Harvesters contain a dedicated variable displacement pump for travel circuit and implement functions, and a dedicated variable displacement pump for felling attachments. Cat 521/522/532 ZTS Track Feller Bunchers and Harvesters contain a dedicated 200 cc variable displacement pump for travel circuit, a 190 cc variable displacement pump for boom and implement functions, and a dedicated 55 cc variable displacement pump for felling and processing attachments. Optional hydraulic configurations for dangle harvesting heads and intermittent saw heads are available for all ZTS models.
Caterpillar® Hydraulic OilProvides maximum protection against mechanical and corrosive wear in all hydraulic systems. Its high zinc content reduces wear, and extends pump life. Provided certain requirements are met (e.g. S•O•SSM analysis every 500 hours), the hydraulic oil change interval is extended from 2,000 hours to 4,000 hours.
Biodegradable Hydraulic OilThe optional biodegradable hydraulic oil (HEES) is formulated to provide excellent high-pressure and high-temperature characteristics and is fully compatible with the all hydraulic components. HEES is fully decomposed by soil or water microorganisms, providing a more environmentally-sound alternative to mineral-based oils.
ToughGuard Hoses™Abrasion resistant hoses along the boom and stick provide strength and flexibility, increasing hydraulic hose service life. The ToughGuard cover consists of a thin layer of UHMW polyethylene bonded to the rubber cover, providing exceptional abrasion resistance. In many applications, it eliminates the need for external guarding.
The interior layout maximizes operator space, provides exceptional comfort and reduces operator fatigue.
ViewingCab design optimizes post structures and window placement to provide excellent operator visibility to front, sides and rear. Standard 1.25" thick “Margard” front window maximizes operator protection. All purpose built forestry cabs are designed with heavy-duty guarding, meeting FOPS/ROPS/OPS requirements.
Fresh AirLarge sliding side window with screen to allow fresh air into cab.
Interior Operator StationThe operator station is quiet with conveniently placed controls, joysticks and an ergonomicallydesigned seat reducing operator fatigue.
Quiet OperationIsolation mounted cab and engine reduces sound levels and vibration for quiet and comfortable operation.
Large Storage CompartmentA large storage space behind the seat, provides sufficient room for a lunch box, hard hats and work tools.
IQANIQAN display allows the operator to continuously monitor the operating systems of the machine. This provides early warning for potential problems, and allows the operator to adjust control parameters maximizing performance and productivity.
Control ConvenienceEach control is placed within easy reach of the operator. Joysticks control the implement and attachment functions, providing easy operation.
Foot PedalsErgonomically located pedals with side-by-side foot rests provide for maximum operator comfort while operating machine travel.
SkylightA unique large polycarbonate skylight provides excellent upward visibility, and acts as an alternate escape hatch.
Electrical System24-volt electrical system with in-cab 24-12 volt converter, dual in-cab 12 volt power points and one 24 volt power point. Power is provided by two 12 volt maintenance free batteries and 95 amp alternator. An optional cold weather starting attachment may be selected to provide two additional batteries, a HD starter, and HD cables.
Tilting mechanism provides stability and comfort in steep slope conditions.
Tilt MechanismWith the most robust tilt mechanism in the industry, the ZTS tilting models (522 and 532) have a patented 3-cylinder tilt mechanism with simultaneous tilting forward and side-to-side. Trunion cylinders are mounted on 2” (51 mm) steel plates and transfer vertical loads down to the interface of the track frames and carbody, putting the load into the track and ground.
CylindersThree-cylinder tilt mechanism with simultaneously 20 degree forward tilt and 11 degree side-to-side tilt.
Ground ClearanceZTS machines have excellent ground clearance and open carbody design. This provides increased mobility by eliminating debris interference and other obstacles encountered in rugged working conditions.
High quality custom engineered, heavy duty forestry undercarriage.
ReliablePrecision welded, high-wide carbody has strong frames that reduce flexing and increase reliability of rollers and track links throughout the life of the machine. Nine bottom rollers per side.
Travel MotorProven final drives and travel motors provide up to 85,000 lbs (38 555 kg) of tractive effort on the 532 giving excellent traction and power to the ground.
Track GuardsIntegrated welded track guards provided on the 511 and 521, with bolt-on track guards provided on the 522 and 532 leveling machines.
CarbodyLeveling 522 and 532 models feature a bolted track frame to carbody design. This provides a standard gauge width, or allows adjustment to a wide gauge width to improve machine stability, and increase productivity on steep slope applications.
Boom and Stick
Designed for maximum reach and lift capacity.With up to 15,600 lb (7100 kg) of bare pin lift capacity at 20' (6.1 m) on the 532 track feller buncher, the 500 series machines are dominant over competitors in their size classes. With market leading lift capacity, 26.6' (8.1 m) of maximum reach, and tight stick tuck-in capabilities, these machines deliver high performance felling in all applications. The 532 track harvester delivers the same high performance with 9,100 lbs (4100 kg) of bare pin lift capacity and 32' (9.8 m) of maximum reach.
Caterpillar® disc saw attachments are available to meet felling needs.
AttachmentsFrom plantation thinning to select cut of large diameter wood, Cat® felling attachments provide reliable productive felling solutions. These range in cut capacity from 22" to 24". Designed to allow maximum visibility of the cutting area, all saws utilize high pressure hydraulics for fast saw recovery and quick arm speed. This provides a positive impact on production and better tree control.
TiltAll models are available with a standard 40 degree partial lateral tilt, or an optional 220 degree full lateral tilt.
Owning and Operating Costs
Cat® 500 Series Track Feller Bunchers and Track Harvesters provide the best value for your operation.
ACERT Technology Fuel EconomyBased on Caterpillar® testing, the fuel economy of Cat® engines with ACERT technology is 3 to 5 percent better than current competing technologies. This fuel economy is directly related to the complete combustion of fuel due to the integration between the electronic control that monitors conditions, the air management system that controls air volume and the fuel injection system that delivers just the right amount of fuel as needed.
Clam-Shell Service DoorsThe hydraulically actuated clam-shell service doors provide easy and quick access reducing machine maintenance time. Less service time means less down time, more work time and greater productivity.
Extended Service intervals and easy access reduce operating costs.
Extended Service IntervalsCaterpillar® service and maintenance intervals have been extended to reduce machine service time, increase machine availability and reduce operating costs. Hydraulic oil change intervals can be extended from 2,000 hours to 4,000 hours. Engine coolant change intervals are 12,000 hour with Cat® Extended Life Coolant/Anti-freeze. Regularly scheduled maintenance extends machine service life and lowers overall operating costs. 500-hour oil change interval reduces overall maintenance costs.
Flexxaire™ FanOptional Flexxaire™ fan operates only when required and allows the fan blades to reverse, purging debris from the radiator area, reducing maintenance time, and fuel consumption.
Clam-Shell Service DoorThe hydraulically actuated clam-shell service door provides easy and quick access reducing machine maintenance time.
Cat® dealer services help you operate longer with lower costs.
Product SupportYour Cat® dealer will help provide you with parts quickly and efficiently by utilizing the Cat worldwide dealer network parts system, minimizing downtime.
Machine SelectionsMake detailed comparisons of the machines you are considering before you buy. What are job requirements, machine attachments and operating hours? What production is needed? Your Cat dealer can provide recommendations.
PurchaseLook past the initial price. Consider the financing options available as well as day-to-day operating costs. This is also the time to look at dealer services that can be included in the cost of the machine to yield lower equipment owning and operating costs over the long run.
Customer Support AgreementsCat dealers offer a wide variety of product support agreements, and work with customers to develop a plan that best meets specific needs. These plans can help protect your investment.
OperationImproving operating techniques can boost your profits. The Cat Forest Products Consulting Services Group offers certified operator training classes to help maximize the return on your machine investment.
Maintenance ServicesRepair option programs guarantee the cost of repairs up front.Diagnostic programs such as S•O•SSM Analysis and Coolant Sampling and Technical Analysis help avoid unscheduled repairs.
ReplacementRepair, rebuild or replace? Your Cat dealer can help you evaluate the cost involved so you can make the right choice.