Rail, Truck & Bus

Hydraulic hose carried to great lengths

Fri, 06 Apr 2012 15:17:00 +0000

Hydraulics moves the ramps and platforms that allow a single carrier to hold multiple cars. Naturally, heavy loads are involved, and the hose must tolerate brutal over-the-road conditions. Typically, car carriers have relied on SAE 100R1 hydraulic hose for pressures to 2250 psi for 3⁄8-in. hose (to 2000 psi for 1⁄2-in. hose) and SAE 100R2 for pressures to 4000 psi for 3⁄8-in. hose (3500 for 1⁄2-in. hose). However, the pressure rating for one manufacturer’s proprietary hydraulic hose is 2750 psi for the 3⁄8-in.

A quick look at hydraulic fan drives

Sat, 24 Mar 2012 18:28:00 +0000

I came across this video of a man showing the components in a hydraulic fan drive used on a school bus. He also explains some of the operation.

The Hitch Post

Hydraulics highlighted at Work Truck Show

Wed, 29 Feb 2012 18:51:00 +0000

Next Tuesday marks the beginning of NTEA-The Work Truck Show in Indianapolis. Hydraulic companies are key exhibitors in this show, as fluid power is used extensively in big work trucks. The event highlights new technologies each year and one cool aspect will be its focus on Green Technologies. Wish I was attending to get a chance to participated in the Green Ride-and-Drive event which will be held Tuesday and Wednesday, March 6-7.

Fluid Power Talk

Brush cutter is on the right track

Sat, 18 Feb 2012 16:55:00 +0000

To keep vegetation safely off rail lines, Rail Construction Equipment Co. designed a unique brush cutter that uses a hydraulically-powered John Deere 120D excavator to drive the rail car chassis, eliminating chain drives and necessary maintenance. The compact hydrostatic drive is safer and more versatile than other designs.

Power takeoff

Tue, 14 Feb 2012 14:03:00 +0000

Chelsea 877 series PTO features a compact housing that provides generous clearance. Two assembly arrangements maximize installation possibilities. High capacity bearings and gear designs provide torque ratings to 670 lb-ft. It offers a 10-bolt mounting pattern that will fit on most automatic transmissions. One hose is required for a simplified installation. Eight internal gear ratios are rated for a variety of speeds.

This is quite a spread

Mon, 13 Feb 2012 18:51:00 +0000

Precise control of where material is spread onto roadways make them safer, reduces costs, and boost productivity.

Shane Chesmore, Henderson Products Inc.

Snow plows are familiar winter-time sights in northern climates. But pushing tons of snow off of roadways often is only part of their job. Hills, sharp turns, intersections, and high-traffic areas usually need salt, sand, cinders or other materials to improve vehicle traction for traffic to keep moving.

Fan drive controls temp in all climates

Mon, 13 Feb 2012 16:13:00 +0000

A leading bus manufacturer adopted a new fan drive that’s the first of its kind in Europe.

Scania buses are internationally recognized for their high fuel economy, reliability, and low impact on the environment. However, a standard electrohydraulic fan drive system from Sauer-Danfoss has a central role in keeping up Scania’s reputation for top performance on the road.

Hydraulic rail car rides the road to ruins

Fri, 20 Jan 2012 15:53:00 +0000

The lost city of Machu Picchu is perhaps the most familiar relic of the Incan civilization. Built around 1450 and situated nearly 8000 ft above sea level on a mountain ridge in Peru, it is so isolated that it was relatively unknown to the outside world until the early 20th century.

Refuse truck is quick and efficient

Thu, 15 Sep 2011 04:00:00 +0000

Power-On-Demand hydraulic system helps make the McNeilusZR Series the fastest side-load refuse truck in the wastereduction industryand with a 15% fuel savings to boot.

Power-On-Demand hydraulic system helps make the McNeilus ZR Series the fastest side-load refuse truck in the waste reduction industry—and with a 15% fuel savings to boot.

Unique hydraulic cylinder design helps position rail cars for loading and unloading

Thu, 14 Jul 2011 04:00:00 +0000

An innovative cylinder arrangement requires almost no external plumbing