Dressta adds 555C Extra wheel loader

  • 19-Jun-2008 07:46 EDT
Dressta-555C.jpg
Dressta’s newest wheel loader, the 555C Extra, features a turbocharged 10.8-L diesel engine, electrically controlled countershaft transmission, hydrostatic steering, and single-lever hydraulic controls.

Dressta recently expanded its wheel-loader lineup with the addition of the 555C Extra wheel loader. The 555C Extra features a new turbocharged diesel engine, single-phase torque converter, electrically controlled transmission, hydrostatic steering, and single-lever hydraulic controls.

Power is provided by a new turbocharged inline six-cylinder Cummins QSM11 engine that provides 319 hp (238 kW) at 2100 rpm and 1235 lb·ft (1674 N·m) at 1400 rpm. The 10.8-L engine is certified to meet U.S. EPA Tier 3 emissions regulations.

Dressta upgraded the 555C’s hydraulic system and added a new cooling module to allow for a variable-speed cooling fan on the 555C Extra. At minimum usage, extra cooling provided by the fan allows an output of 330 hp (246 kW).

Engine power is matched to the load by a single-phase, single-stage torque converter with a 2.9:1 stall ratio. The 555C Extra’s electrically controlled full power shift, countershaft transmission is driven by a double universal joint from the torque converter to provide smooth modulation on all shifts and a comfortable ride for the operator. The four-speed countershaft transmission allows gears to mesh continuously, so adjustments are effectively eliminated.

This machine’s articulating frame provides articulation of 40° to the right or left and a tight 21.3-ft (6.5-m) turning radius. The 5264-lb (2388-kg) counterweight is standard. Heavy-duty axles incorporate full-floating axle shafts and a planetary final drive.

Multiple wet-disc brakes are arranged in two independent hydraulic brake circuits—one in front and one at the rear. Brakes are completely sealed and force-cooled to reduce downtime and improve safety and reliability. Hydrostatic steering provides smooth control at any engine speed, and directional transmission and speed shift are controlled using levers mounted within the operator’s reach.

Z-bar linkage design features a single-bucket cylinder that puts less weight on the front, reduces the number of components, and minimizes the number of wear and maintenance points. Loader linkage pins are sealed to keep out abrasive dust and grit, helping to extend lubrication intervals as well as pin-bushing life, and boom cylinders are mounted outside the front frame for easy access and maintenance.

Dressta’s newest loader can be equipped with buckets ranging from 5.5 to 11.0 yd3 (4.2 to 8.4 m3) and has an approximate operating mass of up to 66,380 lb (30,110 kg). The cab offers high visibility in all directions and is equipped with a full complement of gauges and warning lights that allow the operator to monitor current operating conditions.

The 555C Extra is part of Dressta’s complete wheel loader lineup, which includes the 515G, 520G, 530E, and 560E.

Share
HTML for Linking to Page
Page URL
Grade
Rate It
5.00 Avg. Rating

Read More Articles On

2016-12-07
The Boston-based startup believes the marine domain is even better suited for autonomous systems than aerospace, automotive and other off-highway sectors. The company is currently testing its technology on commercial vessels in Boston Harbor.
2016-12-08
Automation is one of three main technology areas—along with connectivity and alternative drivelines and fuels—that Volvo Construction Equipment is devoting significant R&D resources to further develop. The company recently demonstrated a prototype autonomous wheel loader and articulated hauler working together.
2017-02-28
SANY India, a manufacturer of construction, heavy machinery and renewable equipment, has entered into the mining segment.
2017-03-01
Ashok Leyland’s first Circuit electric bus is designed and engineered entirely in India, by Indians, for India.

Related Items

Standard
2013-05-03
Technical Paper / Journal Article
2011-04-12
Technical Paper / Journal Article
2011-04-12
Training / Education
2017-11-08
Training / Education
2018-06-07