Tag Archive for 'Compact Track Loaders'
The Case SR250 and SV300 skid steers and TR320 and TV380 compact track loaders now feature 90-hp (67-kW), 3.4-liter Case diesel engines with the full high-pressure common rail (HPCR) design typically used in larger construction equipment. To meet Tier 4 Interim emission requirements, Case equipped the models with cooled exhaust gas recirculation (CEGR) technology, including diesel particulate filter and diesel oxidizing catalyst. Case selected CEGR technology as most appropriate for skid steers and compact track loader applications, where the engine typically runs at a high RPM.
Rated operating capacities are 2,500 lb (1135 kg) for the SR250; 3,000 lb (1361 kg) for the SV300; 3,200 lb (1451 kg) in the TR320, and 3,800 lb (1723 kg) for the TV380.
“Case skid steers and compact track loaders have always been known for power and productivity,” said Tim O’Brien, Case brand marketing manager. “Our upgraded Alpha Series models not only deliver best-in-class horsepower and industry-leading bucket breakout force – up to 8,585 pounds – but also more torque when you need it.”
He continued, “A 12-percent higher peak torque rise compared to the previous 3.2-liter engine translates into more power at 1400 rpm, while supporting faster recovery and improved reaction when the engine begins to lug.”
O’Brien noted that CEGR technology for Tier 4 is similar to that used in Tier 3, but now the fuel supply and exhaust gas recirculation process are controlled electronically to achieve greater performance and fuel efficiency, as well as even greater reliability – for example, to help protect the engine from overheating.
New piston design optimizes power, fuel efficiency
The Case 3.4L engine in the upgraded Alpha Series skid steers and compact track loaders features a new, patented piston design – specifically engineered for use in high pressure common rail (HPCR) fuel systems – that promotes thorough combustion, optimizes
power and fuel efficiency.
The electronic engine controls monitor EGR sensors and other inputs to determine diesel particulate filter (DPF) system regeneration needs. As a normal course of operation, the electronic controls will trigger an automatic regeneration of the DPF system. Additionally, the system can notify the machine operator to manually regenerate the DPF system occasionally when the soot load in the DPF exceeds the range defined for automatic regeneration.
“Automatic regeneration does not cause any adverse effect on vehicle power or performance,” O’Brien explained. “The operator can continue to operate the vehicle normally during automatic regeneration.”
Controls also provide a wealth of operating data to the display panel for use by the operator and to the service tool to assist technicians.
The Alpha Series includes both radial-lift and vertical-lift models. The radial lift machines (designated with an R in the model name), are ideal for digging, prying and pushing, while the vertical lift models (designated with a V), excel on lift-and-carry applications.
Designed for operator comfort
The new engine delivers lower noise and vibration to keep the operators more comfortable and productive, all day long.
Electro-hydraulic (EH) controls with switchable patterns are available on all Alpha Series models. This is especially helpful when two or more operators run the same machine. Operators can easily switch between control patterns based on preference.
Exceptional visibility, operator comfort, climate management and operator controls define the Case Alpha Series machines. The skid steer cabs, which are the widest in the industry, feature ultra-narrow wire side screens that improve operator visibility. Extra glass surface gives the operator 360-degree visibility.
The Alpha Series cabs also provide a superior climate management system. The sealed, pressurized cab significantly reduces the amount of noise and dust.
As in previous Case models, the upgraded Case TR320 and TV380 compact track loaders feature a dozer-style undercarriage, engineered to hold fast on steep slopes and take command of muddy or sandy terrain.
The undercarriage has a rigid track frame with fewer moving parts, so it is more durable and easier to maintain than suspension track systems.
Easy access to filters and engine fluids makes maintenance on the Case Alpha Series models a breeze. The regular maintenance points are grouped in one area so operators do not need to walk around the machine to find specific service points.
Maintenance points, such as the radiator, fuel filter, battery terminals and engine oil fill are easy to find under the engine compartment cover and door. A removable side panel provides access to the engine oil filter and environmentally friendly drain. Additionally, the oil cooler and radiator tilt out for easy cleaning.
O’Brien noted the importance of using ultra low sulfur diesel fuel with HPCR engines.
Fuel systems in the upgraded Case Alpha Series models include primary filtration of impurities down to 10 microns, and secondary filtration to 3 microns. Change intervals for both filters are at 500 hours.
For additional skid steer and compact track loader product specifications, customer testimonials, competitive comparisons, finance offers and more, please visit www.casece.com. For a Case wheel loader demonstration, see your local Case dealer
Terex introduces its newest compact track loader models: the PT-100G and PT-100G Forestry. The largest compact track loaders in the Terex lineup, these new models offer operators a 14.6% increase in tractive effort in low gear for more pushing power, a 32% increase in horsepower to the attachment, a redesigned loader arm to achieve greater reach and 13% more bucket breakout force over their predecessors.
“We continue to enhance our compact track loader lineup based on feedback from our distributors and customers,” says Del Carver, area director, North America Compact, Terex Construction. “The original PT-100 and PT-100 Forestry models are among our best-selling models for construction and utility contractors, landscapers, landowners and vegetation management specialists. Our goal with the new PT-100G models was to keep the attributes that have made the previous machines so popular with our customers, while enhancing features to exceed the market’s expectations.”
These models boast a class-leading 99.9-hp engine and 310 lb-ft of torque. Brand new to the PT-100G models, the cooling fan blades will automatically adjust to provide optimum airflow while minimizing engine hp consumption. These newest Terex loaders have an operating weight of 11,400 lb, a tipping load of 8,000 lb — with a 4,000 lb operating capacity at 50% tipping load capacity — and a lift height of 125 in.
With a narrow 6-ft profile and a low 14-3/4 in ground clearance, the new Terex® PT-100G and PT-100G Forestry loaders are designed to maximize work in limited access areas. And with a low 4.0-psi ground pressure, these machines can easily work on soft or sensitive surfaces with minimal damage or impact. The new PT-100G models include the Terex® patented Posi-Track undercarriage technology and suspension for the smoothest ride available in the industry. With 48 contact points on the ground, compared to the previous models’ 42, the PT-100G machines offer increased traction and higher flotation in all ground conditions and longer track life. While these loaders come standard with general-purpose rubber tracks, the Terex® Turf tracks are options for both these units. “These features offer better operating comfort so operators can make full use of these loaders’ higher travelspeeds, hydraulic performance and engine horsepower,” says Carver.
These loaders set a new benchmark in the industry with a load-sensing, high-flow auxiliary hydraulic capability of 43 gal/min @ 3,800 psi incrementally adjustable in 1 gal steps from 30-43 gal/min. Other features standard on the PT-100G and PT-100G Forestry include load-sensing infinitely variable low-flow auxiliary hydraulics from 0-20 gal/min, two-speed transmission up to 10 miles/hr, auto-idle, creep mode, selectable pattern changer from ISO to “H” pattern and adjustable loader/bucket sensitivity. On models equipped with heat or AC, a pressurized and sealed enclosed cab comes standard.
The Terex PT-100G Forestry compact track loader comes fully outfitted for demanding forestry applications. The auto-reversing fan on the PT-100G Forestry has been enhanced to allow the operator to trigger it at set intervals in 5-min increments to keep the machine’s cooling system running at peak performance. This is the only compact track loader that meets British Columbia logging standards (BC Standard WCB 6G603MAR90 & ISO 8084, April 2008).
In addition to these industry-leading attributes, the rugged new PT-100G Forestry model offers a comprehensive set of integrated standard features, including a FOPS Level 2 cab and 20-in tracks, as well as a complete forestry guarding package that includes a heavy-duty polycarbonate door with a wiper, steel hood, rear brush guard and limb-risers. Also standard is a screened engine pre-cleaner, and heavy-duty skid-plates, which are hinged to allow access for cleaning out debris and other routine machine maintenance.
Both the PT-100G and PT-100G Forestry loaders are designed with front-mounted quick-connect hydraulic fittings and an electronic connector for control of attachments, enabling them to use virtually any industry-standard attachment. These models are also equipped with electronic-over-hydraulic pilot-operated joystick controls and a comfortable operator station for easy operation.
They will be available in July of this year. Terex said that its dealers are taking orders now.