Galbreath’s new Work Truck Series Cable Hoists to address light-duty applications

Galbreath recently launched its new WT-1216/X and WT-2018/X work truck series cable hoists. Combining all the toughness and durability Galbreath hoists are known for in a more compact and lighter-weight package, the new models were designed to offer a lighter-duty option to Galbreath’s original 8-inch main frame single axle cable hoist, making them perfect for landscapers, general contractors and private waste haulers who need less power and easier maneuverability.

The WT-1216/X and WT-2018/X can transport loaded containers and equipment up to 20k lbs. and 18 feet in length. With a stout 6-inch main frame, these new hoists feature electric over hydraulic controls using a wireless remote control, making it easier to “spot” containers much more efficiently and safely while monitoring low clearance and maneuvering through difficult-to -reach or tight metropolitan areas.

Engineered and manufactured in the United States with versatility and compatibility with a variety of truck chassis in mind, the new cable hoists are bolt-on ready and easily installed with no welding required, saving time and money. The hoists also come standard with externally mounted secondary manual controls, BOC (back of cab) mounted steel tank w/ dual sight/temp gauge, adjustable bolt-on rear apron and split bumpers and dual 4-inch lift and winch cylinders. The hoists are also tarp system ready, with a mounting platform that is compatible with Pioneer or other tarp brands.

The work truck series hoists are also customizable, with custom engineering layouts to ensure the best fit for each customer, as well as a host of options, including toolboxes, back-up cameras, fenders, expanded light packages, auxiliary front stops and a side-mount oil tank.

“Galbreath is committed to using our unsurpassed hoist knowledge and expertise to solve customer problems through innovations and new product development,” said John Defenbaugh, Wastequip’s commercial president. “Many of the hoists available on the market are simply overkill for many end-users in terms of size and power. By offering a smaller, lighter-duty option, the WT-1216/X and WT-2018/X fill a need and present a compelling product option for previously underserved markets, like landscapers, general contractors and private waste haulers.”

Read more: Galbreath’s new Work Truck Series Cable Hoists to address light-duty applications

Cylinder Sizing Considerations for Precision System Control

Despite careful design and implementation of sophisticated control electronics, fluid power system performance can be degraded by incorrect sizing or physical location of system components. A common design oversight is the use of undersized cylinders. In an attempt to increase actuator speed, designers may specify small bore cylinders, based on the assumption that for a given amount of oil flow, a smaller cylinder will produce higher velocities. However, this assumption only holds for very light loads.

For cylinders moving moderate to heavy masses, the acceleration, velocity, and deceleration are limited by the available force, rather than oil flow. Because cylinder bore determines the force an actuator can produce, if the cylinder diameter is too small, the actuator may not be capable of attaining the desired speeds or required cycle times needed for the application.

The Temptation of Simplified Formulas
Pressure of design, market, and time constraints, can make it tempting to use simplified, first-order approximations to govern system design. And this approach might achieve acceptable results for simple machines. As control systems become more sophisticated, and increased importance is placed on efficiency and economy, reliance on these design approximations tends to result in overly conservative designs. The cost of this approach can be measured in larger, more expensive cylinders, valves, and pumps. Consequently, a supplier or distributor may lose a bid to a competitor due to extra cost.

A formula such as V =Q / A is a starting point. However, this formula is true only when the mass is zero. Since most real-world systems need to move a mass of some kind, this formula should only be used in the alternate form, Q = V ´ A, when calculating system flow using velocity and area.

Read more: Cylinder Sizing Considerations for Precision System Control

Hydrostatic Trencher can Dig Automatically

Vermeer’s T-755 hydrostatic tracked trencher combines toughness with technology. The powerful machine is designed for digging in rock, cross-country trenching or working drainage and utility projects on roadways. The T-755 cuts trenches as deep as 10 ft and 14- to 36-in. wide at chain speeds of 397 to 724 ft/min. These operations and more are monitored and controlled by Vermeer’s Smarttec electronic control system for versatility and ease of operation. The system also records key functions for proactive maintenance and operator performance analysis. Its software provides real-time operator prompts based on operating conditions.

Vermeer’s T-755 hydrostatic trencher uses a low-speed, high-torque motor fed by two pumps to drive its trenching chain. Although it’s shown here cutting into dirt, it’s just as capable digging into rock using rotary, carbide-tipped cutters.

Traction and Trenching Circuits
The T-755’s dual-path hydrostatic drive, powered by a 275-hp @ 2,200-rpm diesel engine, uses a matching pump, hydraulic motor, and planetary transmission in a separate circuit for each track and is capable of full counter-rotation. A 4-pad pump drive box transmits torque and rotational speed to a pair of pumps that supply the traction and another pair powers the low-speed, high-torque trenching motor. Maximum transport speed for the 37.5-ton machine is 170 ft/min, with digging speeds from 0 to 91 fpm. Practical cutting speed ranges from 400 to 670 fpm, depending on the application and operating conditions. The machine’s service brakes also are hydrostatic, parking and emergency brakes are spring-applied, hydraulically-released.

But the T-755 really gets down to business with its digging chain with rotary, carbide-tipped cutters, which is powered by a single low-speed, high-torque hydraulic motor in a hydrostatic circuit supplied by two variable-displacement pumps through a control manifold. Even though maximum system operating pressure is set at 2,500, the motor can accept intermittent peak pressures as high as 6,000 psi, a condition that is not unusual when digging in rock. Two variable-displacement pumps provide the design flow to the motor; the Smarttec control regulates their displacement in unison. The dual-pump arrangement can deliver full engine power to the chain when needed.

Read more: Hydrostatic Trencher can Dig Automatically

Hydraulic Cab Tilt System Market Share To Record Steady Growth By 2024

A fundamental outline is presented by the “Hydraulic Cab Tilt System Market: Global Industry Analysis, Size, Share, Growth, Trends, and Forecasts 2016–2024” report that entails definitions, classifications, applications together with industry chain framework. The Hydraulic Cab Tilt System Market report provides a far-reaching evaluation of necessary market dynamics and the latest trends. It also highlights the regional market, the prominent market players , as well as several market segments with a wide-ranging consideration of numerous divisions with their applications.

Further, the report acknowledges that in these growing and promptly enhancing market circumstances, the most recent advertising and marketing details are very important to determine the performance in the forecast period and make essential choices for profitability and growth of the Hydraulic Cab Tilt System Market. In addition, the report encompasses an array of factors that impact the growth of the Hydraulic Cab Tilt System Market in the forecast period. Further, this specific analysis also determines the impact on the individual segments of the market.

Furthermore, the study assessed major market elements, covering the cost, capacity utilization rate, growth rate, capacity, production, gross, usage, revenue, export, supply, price, market share, gross margin, import, and demand. In addition, the study offers a thorough segmentation of the global Hydraulic Cab Tilt System Market on the basis of geography, technology, end-users, applications, and region.

The Hydraulic Cab Tilt System Market report is a collection of pragmatic information, quantitative and qualitative estimation by industry experts, the contribution from industry connoisseurs and industry accomplices across the value chain. Furthermore, the report also provides the qualitative results of diverse market factors on its geographies and segments.

Read more: Hydraulic Cab Tilt System Market Share To Record Steady Growth By 2024

Mobile Crushers Go Where the Work Is

Mobile crushers can reduce rock, concrete, and other debris to the size of gravel, and they can maneuver themselves around a work site—but not at the same time. That’s how these dual-purpose machines can get away with having a single hydraulic power unit.

If the mountain won’t come to Muhammed, then Muhammed must go to the mountain. That’s the principle behind mobile material crushers. Large, stationary crushers can crank out impressive piles of crushed rock or concrete in no time. But some projects—such as road construction and utility projects—can go faster by bringing the crusher to the work area, rather than having to transport material to a centrally located crusher. With output capacities ranging to hundreds of tons per hour, these powerful brutes can hold their own against larger, stationary machines by smoothly and efficiently reducing construction and demolition debris into pre-selected sizes for gravel, fill, or subsequent processing.

After input material is dumped into a hopper, it travels through a grizzly feeder, crusher jaws, and to a conveyor, which carries crushed material out of machine.

Getting Down to Business
After the mobile crusher is transported to the job site on a trailer, an operator maneuvers it into convenient positions under its own power—ready to work in spaces too tight for larger, more cumbersome crushers or inaccessible to crushers that must be towed or pushed into final position. Mobile crushers significantly increase productivity because the unit can move around a site to crush material wherever it is stockpiled, versus hauling material to a stationary crusher from several locations.

Read more: Mobile Crushers Go Where the Work Is

Cylinders: The Basics and More

When hydraulic or pneumatic systems must produce linear motion, cylinders become their most important component by converting fluid pressure and flow to force and velocity.

The linear motion and high force produced by cylinders are big reasons why designers specify hydraulic and pneumatic systems in the first place. One of the most basic of fluid power components, cylinders have evolved into an almost endless array of configurations, sizes, and special designs. This versatility not only makes more-innovative designs possible, but makes many applications a reality that would not be practical or possible without cylinders.

The Basics

The most common cylinder configuration is double acting (Fig. 1). Routing pressurized fluid into the rod end of a double-acting cylinder causes the piston rod to retract. Conversely, routing pressurized fluid into the cap end causes the rod to extend. Simultaneously, fluid on the opposite side of the piston flows back into the hydraulic reservoir. (If air is the fluid medium, it usually is vented to the atmosphere.)

1. Cutaway view shows key features of a typical cylinder—in this case, a double-acting welded design for hydraulic service.

Because the area of the rod-end piston face is smaller than the cap-end area, extension force is greater than retraction force (assuming equal fluid pressures). Because total cylinder volume is less with the piston rod fully retracted (because of rod volume) than when it is fully extended, a cylinder retracts faster than it extends (assuming equal flow rates).

Single-acting cylinders accept pressurized fluid on only one side of the piston; volume on the other side of the piston is vented to atmosphere or returns to tank. Depending on whether it is routed to the cap end or rod end, the pressurized fluid may extend or retract the cylinder, respectively. In either case, force generated by gravity or a spring returns the piston rod to its original state. A hydraulic jack for vehicles represents a common application of a single-acting, gravity-return cylinder.

Read more: Cylinders: The Basics and More

Cat GRADE With 3D Brings Added Utility, Versatility, Operating Efficiency

Yanmar Construction Equipment Europe (CEE) has further expanded its class-leading equipment portfolio with the launch of its ViO82 zero tail swing midi-excavator. Perfectly blending technology and innovation, the new model will be available to order through dealers nationwide from December.

Offering the efficiency and productivity of a large excavator with the space-saving benefits of a much smaller model, the ViO82 delivers unparalleled performance. A true zero tail swing excavator, neither the counterweight or upper frame overhang the unit’s tracks, making the 8,200KG model perfect for operation within tight urban spaces or single carriageways.

Thanks to a robust X-shaped undercarriage design and unique weight distribution, the ViO82 delivers remarkable lifting capability, unmatched stability and torsional stiffness. The boom itself has been specifically designed to swing up to 60° on both sides, in order to maximise operator efficiencies.

Powered by Yanmar’s 3.3L 4TNV98C-WBV1 water-cooled diesel engine, delivering 41.5kW (55.6 HP) gross power at 1,900 RPM, the ViO82 achieves a digging force of 63.5kN (bucket), 25° gradeability and a travel speed of 5 kmph. The addition of Yanmar’s VIPPS21 two-pump independent hydraulic system, which regulates hydraulic flow based on engine speed, minimises pressure loss and improves smooth operation.

A common rail direct injection system allows the engine’s ECU to fine-tune combustion and optimise performance, while cooled exhaust gas recirculation (EGR) technology further reduces exhaust emissions. This, combined with auto-deceleration and eco-mode (which limits power when duty cycles require minimal movement) makes the ViO82 one of Yanmar’s most environmentally-friendly models ever.

The ViO82 further benefits from a comfortable cabin, fully-adjustable air suspension seat as standard and LED lighting. Operator safety has also been prioritised, with a ROPS and FOPS approved design, 360° visibility, large footstep and anti-slip system.

Read more: Cat GRADE With 3D Brings Added Utility, Versatility, Operating Efficiency

Get Hydraulic Power from Compressed Air

In air-over-oil systems, compressed becomes the driving force for hydraulic circuits. An alternative to air/oil circuits is an air-powered intensifier. These devices drive a reciprocating pump, which is essentially two cylinders mounted end to end with a common rod.

The rod of a large-bore air cylinder transmits force to a small-bore hydraulic cylinder through its rod. The force delivered by the air cylinder is a function of pressure times net piston area. This same force is applied by the common rod to the much smaller piston of the hydraulics cylinder. Therefore, output pressure of the hydraulic cylinder is force-divided by net piston area. Therefore, the intensifier converts higher-flow, lower-pressure pneumatic power into lower-flow, higher-pressure hydraulic power.

Enerpac, Menomonee Falls, Wis., recently introduced its DuroTech line of air-driven hydraulic power units (intensifiers) for high-cycle industrial applications. Douglas Lacina, Workholding Commercial and Engineering Leader, explains: “Shop air is connected to the built-in pressure regulator where the operator can adjust the air pressure, in turn setting the maximum hydraulic oil pressure. The air is ported through a built-in air shut-off valve to the air pump. With the air shut-off valve open, the pump automatically turns on and off to obtain and maintain the selected hydraulic pressure.”

DuroTech pumps do not require lubricated air. They run cool and operate at noise levels of 75 dBA or lower. “One key feature to this product is the reciprocating, dual ram piston pump,” adds Lacina. “Every time the piston strokes, it creates flow, so it reciprocates less than single-ram systems do, which translates to more flow and longer life.”

The intensifiers feature a four-station DO3 manifold with cover plates for unused sections, fluid reservoir with sight glass, built in air pressure regulator, filter, and pressure gauge. DuroTech pumps come in three models, which produce maximum hydraulic flow from 612 to 252 in.3/min, max hydraulic pressure from 1,595 to 4,785 psi, and require 24 scfm maximum air flow.

Read more: Get Hydraulic Power from Compressed Air

Cat rolls out compact wheel loader

A new Caterpillar compact wheel loader with increased lifting capacity, speed and work tool capability was demonstrated at the company’s year-end press briefing.

“When we talk to our customers, what do they want to do with these products? Well, of course they want to move more material with a given size product, they want to do more with a single machine, and ultimately make more money,” said Joel Grimes, Cat Building Construction Product wheel loader marketing and sales support manager.

“The 903D is well suited to compete for business in a variety of applications – landscaping, snow removal, agriculture, general construction.”

Available with either an open or enclosed cab, the 903D operator’s station features a refined ergonomic design with a new multi-function joystick that provides fingertip control of the standard third-function hydraulic system.

Whether lifting light material into a hopper or loading heavy pallets onto a truck, the choice of standard-lift or high-lift boom arms increase the 903D’s ability to work efficiently in a wide range of applications, with buckets ranging in capacity from 0.8 to 1.3 cubic yards, forks, or a selection of powered and non-powered work tools.

“This little guy can take up 5,400 pounds. What’s a pallet of wet sod weight, what’s a pallet of seed weigh, what’s a big bag weigh? Somewhere in the 3,000 pound range which means this machine can now very comfortably move palletized material,” Grimes said.

“We’ve kept this product under 10,000 pounds in weight, but we boosted its payload by 25 percent (compared to its 903C2 predecessor). We’ve pulled its front axle forward about six inches which means the weight that’s already in the machine is more efficiently being used to move that payload.”

The 903D also features a standard auxiliary (third-function) hydraulic system that delivers a flow of up to 14 gallons per minute at pressures to 3,481 pounds per square inch, producing ample hydraulic horsepower to operate any number of hydraulic work tools such as brooms, power box rakes and grapple buckets.

Read more: Cat rolls out compact wheel loader

Hydraulic Motors Transmit High Torque for Machine Motion

Hydraulic cylinders usually answer the call for generating high torque in linear drives. But when rotational power is needed, it’s hard to beat hydraulic motors for high torque with precise speed control.

Whether heavy equipment needs rotational motion for several operations or only one, hydraulic motors often make sense because they can generate high torque from a compact package. But the ease of controlling speed, torque, and direction using simple hydraulic valves makes hydraulic motors versatile, as well.

This report explores examples of different that machines that capitalize on the many advantages of hydraulics to make them leaders within their respective fields.

Hydrostatic Vibration Enhances Compaction

There’s more to surface compactors than what meets the eye. They appear to have a large, heavy drum that rolls across the surface of loose soil or fresh asphalt to compress it down into a flat surface. But that’s not all: They also contain a vibration mechanism that drives an eccentric weight to use force from angular acceleration to apply additional downward force.

The principal works much like compacting soil with your feet. If you stand or walk slowly on loose soil, you’ll compact it with your body’s weight. But if you jump, and stomp on the soil with your feet as you land, the combined force from your weight and leg action will produce much more effective compaction than your weight alone.

In the Model CS56 soil compactor from Caterpillar Paving Products, force from angular acceleration is produced by a hydraulic motor driving a pair of eccentric weights inside the drum. It uses a 30-Hz, dual-amplitude vibratory system to help it deliver optimum compacting force. Changeable from the operator’s station, either of two vibratory amplitudes can be selected to best match the soil characteristics. Centrifugal force in high amplitude is 28,000 lb and drops to 13,800 lb in low amplitude. These medium-duty soil compactors with 66-in. wide drums have estimated production rates up to 500 cubic yards per hour.

Read more: Hydraulic Motors Transmit High Torque for Machine Motion

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