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How Hydraulics Transformed the Agriculture Industry

A century ago, a vast majority of the US population lived and worked on farms to raise crops or cattle for personal use and profit. Initially, all agricultural operations were performed manually and required significant manpower. However, the introduction and use of modern agricultural machinery, including hydraulic devices and equipment, allowed farmworkers to complete tasks faster, reducing the number of farmhands required for day-to-day operations. This decreasing demand translated to an increasing number of people migrating from agriculture to other sectors. As it stands today, only about one percent of the US population works in agriculture.

Hydraulic power was one of the key factors in the transformation of the agriculture industry. In addition to increasing efficiency and productivity in agricultural operations, hydraulic equipment offers a host of other benefits.

The Impact of Hydraulic Power

The introduction of hydraulics significantly changed the agriculture industry, especially regarding the method and manner of production. By adopting hydraulic equipment, industry professionals:

  • Reduced the amount of manual power needed (both in terms of workers and work animals)
  • Lowered the risk of injury (due to the lower number of hours spent working in the field)
  • Limited the amount of downtime between agricultural operations
  • Increased individual and overall efficiency and productivity
The impact of hydraulic power is still visible in the agriculture industry today, especially in domestic and international commercial agricultural systems. From crop planting to harvesting and cattle breeding to slaughter, a wide range of agricultural operations relies on hydraulic systems. As farming and livestock operations are reliant on small windows of opportunity dictated by the seasons and market conditions, work disruptions are detrimental to a farmer’s profits. Hydraulic equipment is especially beneficial in limiting downtime and maintaining high productivity.

Critical Applications of Hydraulics

Some of the typical agricultural machines that utilize hydraulic power are:

  • Tractors, the workhorses of the modern farm, initially used hydrostatic transmissions. However, today, hydraulic drives are common. Depending on the type employed, they may feature a hydraulic wheel motor or track drive motor.
  • Sprayers are used for uniform distribution of fertilizers, pesticides, and other agricultural chemicals. Although they can be towed and mounted on trailers and tractors, some sprayers are designed for self-propulsion. Many of the self-propelled sprayers employ hydrostatically powered wheel motors to achieve independent movement.
  • Combine harvesters and forage harvesters, as their names suggest, are used for harvesting. Forage harvesters are used for gathering fodder for cattle, while combine harvesters simultaneously reap and thresh while harvesting crops. Both of these harvesters can be self-propelled. Like sprayers, they also use hydrostatically powered wheel motors.
  • Track loaders are used on the farm for loading operations. These slow-moving machines use hydraulic track drive motors to produce the slow speeds and high torque necessary to drive the tracks.
In addition to the ones listed above, there are many other types of agricultural equipment that use hydraulic drives and transmissions to power and drive their operations, such as muck spreaders, feeder mixers, irrigation systems, and forestry machines.

Contact the Agricultural Hydraulic Team at Metro Hydraulic Jack Co.

At Metro Hydraulic Jack Co., we have supplied hydraulic equipment and parts to a wide range of industries for over 75 years. Our hydraulic product offerings include pumps, valves, cylinders, and jacks suitable for use in agricultural applications. To support our products, we also offer the following services:

  • Engineering assistance
  • Hydraulic jack repair
  • Hydraulic cylinder repair
To learn more about our product and service offerings, contact us or request a free quote today.
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Why You Need to Be Repacking Your Hydraulic Cylinders

Repacking hydraulic cylinders should be a regular component of any organization’s annual preventative maintenance routine. The process is relatively simple and serves to keep machinery running in peak condition at all times. Most hydraulic cylinders eventually begin to leak oil from their seals. Repacking the cylinders serves to keep costs down and machinery operational. Taking the time to repackage hydraulic cylinders fixes broken links and extends the cylinders’ life span. That translates to benefits for the professionals who rely on them to complete critical work. If teams fail to assess and repackage their hydraulic cylinders regularly, they could lose out on both profitability and efficiency in the workplace.

The Importance of Repacking

Repackaging hydraulic cylinders is a key component of using them effectively and responsibly. When hydraulic cylinders show sign of leakage, it’s more cost-effective to repair or repackage them than it is to buy new hydraulic cylinders altogether. The average hydraulic cylinder repair will cost a company about $200, while a new one can go for thousands of dollars, which could lead to extensive savings. The repackaging process and other preventative maintenance steps are also a more eco-friendly solution to component issues than making new purchases. Organizations interested in performing their own hydraulic cylinder repacking process will need a handful of tools and conditions to ensure that work runs smoothly:

  • A repacking kit
    • Repacking kits contain replacement parts for various components of the cylinder
    • Often, parts are damaged upon disassembly; it’s important to keep replacement parts on hand so the lift can be reassembled and used immediately
  • A supply of new hydraulic oil
    • Contaminated oil has the potential to damage the new packing
  • A container to catch the used oil
  • A clean workplace
    • Select an area which will not be damaged should any oil spill

How to Repack a Hydraulic Cylinder

Repacking a hydraulic cylinder is a simple process. Working through each step thoroughly will ensure top-quality work and peace of mind once machinery is operational again. The process begins with releasing the cylinder pressure and unhooking the hydraulic lines from the cylinder to remove any remnants of pressure. Then, it’s time to remove the gland and pin from the rod-end of the cylinder before taking the piston rod out as well. It’s crucial to be extremely careful here—rods are easily contaminated and damaged. Once the rod has been removed from the cylinder, the piston must be taken out of the rod. Keeping parts in order during this process will make things easier down the line; some people even take pictures at each step to ensure they remember how the disassembly process worked. From here, the seals and O-rings on the piston and gland can be replaced one at a time. Make sure you stay organized and perform changes one at a time. This is the only way to ensure that each part goes back into the correct space. Check for debris and remove any signs of it while you clean and switch parts. Then it’s just a matter of reassembling the piston to the rod, replacing the hydraulic lines, and testing for leaks. There are a number of maintenance steps you should take before and after repacking a hydraulic cylinder:

  • Inspect the cylinder for corrosion and wear and tear
    • Immediate action should be taken is corrosion or uneven wear and tear appears
  • Physically inspect the piston and cap
  • Properly filter oil to keep it clean
  • Rotate cylinders regularly and inspect cylinder internals
  • Pay attention to accessories too—not just the cylinder—and look for worn brackets, pivot pins, and ball joints

Does Your Hydraulic Cylinder Require Servicing?

Metro Hydraulic is a distributor of numerous top hydraulic cylinder brands, including Enerpac®, SPX, and Simplex. Our cylinders see regular use in construction and manufacturing applications; countless organizations count on our products for a range of heavy-duty industries and applications. If your hydraulic cylinder requires servicing or you’d like to learn more about our products and services, request a quote from us today. A knowledgeable member of our team will work with you to determine your project needs.
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The Most Common Hydraulic Jack Problems

Hydraulic jacks simplify the movement of large or heavy items. The jack’s hydraulic system multiplies a worker’s efforts, enabling one person to successfully lift and maneuver heavy loads with little physical strain. Jacks are also used to suspend heavy objects in midair to provide maintenance access with minimal exertion on the operator’s part. Though they’re built to be tough, hydraulic jacks can sustain damage from heavy use, improper maintenance, environmental elements, and other factors that compromise their ability to perform. Regular hydraulic jack repair and/or maintenance mitigates the damage caused by these issues by identifying signs of damage early and allowing for fast correction of any problems. This is especially crucial for older jacks that have been operational for many years.

Signs That Signal the Need for Hydraulic Jack Repair

Regardless of the type of jack or the application, there are some issues that are common within this tool category. Maintenance problems can compromise a jack’s ability to operate efficiently and negatively impact operator safety. If your equipment exhibits these signs, it is important to coordinate jack repairs right away.

Jack Does Not Fully Extend or is Slow to Release

Hydraulic jacks depend on fluid-driven pressure to create movement. When the flow is compromised, it can cause problems with lifting mechanisms.

Squeaky or Damaged Wheels

Excessive noise issuing from your wheels could mean it’s time to replace those parts. Often, the application of heavy oil provides enough lubricant to prolong the life of metal support structures.

Damaged Frame

Without a structural sound frame, your entire unit could literally fall apart under a heavy load. This type of damage typically cannot be repaired and requires the purchase of a new hydraulic jack.

Foamy or Milky Oil

Discolored or frothy oil means water has infiltrated the system. If not remedied quickly, this condition will cause irreversible internal corrosion.

Handle Kicks Back

Stop using your hydraulic jack immediately if the handle kicks back up after a down stroke. This condition is extremely dangerous for operators. Fortunately, a repair professional can restore the unit’s function.

Leaks

Depending on which fluid is leaking from your unit, this sign could indicate a range of potential problems. A thorough examination of the unit is necessary to decipher the issue.

Rams Won’t Lift

When rams won’t respond properly, this usually points to a lack of hydraulic fluid. Simply add more fluid, turn the jack to its release position, pump a few times to release trapped air, and then refill the reservoir. Once the seal is replaced, the unit should function properly.

Overloaded Jack Trips Safety Valves

If the load is too heavy, the jack’s safety valves will engage, which will cause the jack to stop lifting. Refer to the user manual to identify the safety valve and follow instructions to reset it.

Professional Guidance from Hydraulic Experts

Hydraulic jacks are an essential part of many industrial and commercial operations. From warehouses to production floors, these devices enable the simple and efficient movement of massive products and components. However, hydraulic jacks are not indestructible. Like all machinery, attentive maintenance and prompt repairs are both key to prolonging the life of the unit. Many common hydraulic jack repairs can be performed by novices or those with little mechanical skill. However, proper correction of many issues will benefit from professional input. Metro Hydraulic Jack Co. provides hydraulic jack repair services that support your commercial or industrial operation. Our repair shop and testing facility are fully equipped to evaluate, service, and repair your hydraulic floor jack. Contact us to find out how our hydraulic jack repair services can help lift your profit potential.  
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How Hydraulic Systems Power Waste Management Operations

Many industries rely on the effective use of hydraulic power tools to build, maintain, and repair their structures and appliances. Hydraulic power tools see use in a diverse range of industries, which include:

  • Construction
  • Utilities
  • Transportation
  • Railroads
  • Automotive and aerospace manufacturing
Recently, tools powered by hydraulic processes have seen an explosion in use by waste management professionals. These tools generate fewer emissions than similar, nonhydraulic processes, and they more efficiently perform the lifting and compression tasks central to the waste management field. Consequently, more and more waste management companies are switching to the use of hydraulic tools for their applications.

Powerful Waste Removal Applications

Hydraulic systems can easily perform tasks that are otherwise impossible with other forms of power transmission. The waste and recycling industry presents several opportunities for hydraulic tools to outshine their competition. Many hydraulic tools form parts of greater hydraulic hybrid systems. These systems often act as the primary power source for waste removal vehicles like:

  • Garbage trucks: Hydraulic systems make it easier for garbage trucks to load and transport solid waste. Hydraulic systems also appear at dumpsites and landfills to lift and dump garbage.
  • Trash compactors: High-efficiency motors drive hydraulic systems in compactors, which take advantage of their superior compression abilities to create more space-efficient waste.
  • Street sweepers: Hydraulic systems to power motors to rotate street sweeper brushes. Hydraulic systems also create atomized mists of high-pressure water, which use less water than other types of power washing tools.

Why Choose Hydraulic Hybrid Systems?

Hydraulic hybrid systems assist in a variety of problems faced by waste management and disposal professionals. They can capture as much as 70% of the kinetic energy released by their regenerative braking systems, which store and release hydraulic energy.

How Hydraulic Hybrid Systems Work

In a hydraulic hybrid system, one pump is powered by a truck’s engine to pressurize the system. The remaining two pumps connect with one rear wheel each, which enables them to capture braking energy and use this stored energy to accelerate the vehicle later on. Special components called accumulators are responsible for the actual capture and release of braking energy. When a truck driver depresses the brake pedal, the two pumps connected with the rear wheels convert the moving truck’s kinetic energy into hydraulic power. The conversion process causes the truck to decelerate, and the resulting hydraulic energy is stored in the accumulators for later use. When the accelerator pedal is depressed, hydraulic energy is released from the accumulators to propel the truck forward.

Benefits

Using a hydraulic hybrid system in waste management and disposal applications comes with many benefits, which include:
  • Reduced maintenance costs
  • Reduced wear and tear on the engine
  • Extended brake life
  • Reduction in noise levels
  • Brake recovery energy capabilities
  • Fuel savings

Ready to Order Your Hydraulic Tool?

Let’s face it—waste removal applications are rough on every system, including hydraulics. That’s why you should partner with a certified hydraulics expert when you’re updating your equipment. Metro Hydraulic Jack Co. is one of America’s premier hydraulic cylinder suppliers. We’ve repaired and distributed cylinders and other hydraulic tools to waste management businesses across the country, and our products take part in many of the daily applications essential to this field. From hydraulic cylinders and pumps to hydraulic valves and jacks, Metro Hydraulic has a proven track record in designing the most optimal equipment for your needs. If you would like to learn more about how partnering with our team will improve your waste processing capabilities, contact us today.
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Using Directional Control Valves

Directional control valves are the workhorses heavily relied upon in the worlds of hydraulic circuits and machinery as well as pneumatic systems because of the way they allow fluids to flow into specific pathways from one or multiple sources. The most basic configuration is a spool inside a cylinder where the movement of the spool is what permits or restricts the flow of fluids through it. An actuating force must be applied to operate the valve and move it from normal (or neutral) position to working position. More complex control valves can have more than two basic positions by have multiple working positions.

Types of Directional Control Valves

Directional control valves are classified according to their various characteristics, such as the number of ports (external openings allowing fluid to enter and leave the valve), number of positions, actuating method used, the type of spool, the fluid path, and so on as follows:

  • Fluid Path: Check valves (allows flow in one direction only actuated by low-pressure input flow, blocking flow in the opposite direction), shuttle valves (allow for switching back and for the between two flow sources into a one-branch circuit, where one source is often just a backup for the other), two-way valves, three-way valves, four-way valves.
  • Positions: There are typically two or three positions – neutral/normal and one or two working positions.
  • Ports: The number of openings through which fluid can flow into and out of the valve.
  • Actuation: How the valve is moved from one position to another, including manual (moving a handle, pushing a button, stepping on a foot pedal), mechanical (cam and rollers), pilot signal (hydraulic or pneumatic) or solenoid (energizing the solenoid or electric coil creates a magnetic field against the armature to push the spool into position.
  • Spool: The type of spool can rotary (typically with manual actuation) such that the spool is rotated into a working position or sliding such that the spool is slid into a position to align its various chambers with the ports.

Functionality of Directional Control Valves

Out in the field these devices are often nicknamed “bang-bang valves.” These valves can shift from fully open to fully closed in an instant, which can cause “fluid hammer” or a banging noise. Sometimes they’re also called “discrete valves” because they shift from one discrete position to another or “switch valves” because they switch the flow by stopping it, starting or changing its direction. A number of combinations are possible in terms of the mix of ports and positions of different directional control valves. One example is a 4/3 or 4-ports 3-position valve. In the US it would be called a 4-way valve, but international standards use the word “port.” One of the ports would be for receiving a pressurized fluid from a pump, another would route fluid back to the reservoir or exhaust system (for pneumatic systems), and the remaining two ports would be for routing fluid to and from the actuator. In terms of the three positions, neutral would mean all ports are blocked and there is no flow of fluids. The remaining two working positions allow for the flow of liquids in the right directions to reach various components.

Directional Control Valve

Industries that Use Directional Control Valves

Using directional control valves is absolutely essential to any industry that relies on hydraulic circuits, machinery and equipment, which covers a dizzying array of application. Anything with a motor is going to use directional control valves, so they figure prominently in the automotive industry in every vehicle transmission you can think of, including automatic transmissions (AT), automated manual transmissions (AMT), continuous variable automatic transmissions (CVT), double-clutch transmissions (DCT) and the control of automated clutch actuations in hybrid drives. It’s hard to think of anything “industrial” that doesn’t make use of directional control valves – die casting and foundry, machine tooling, marine/offshore, press, primary metals, plastics, pulp and paper, test equipment and simulation, turbine control (wind, steam, water), wood processing and much, much more.

Importance of Sourcing Directional Control Valves

Given how widely used directional control valves are across vastly different industries and applications, there are innumerable choices of valves from many different manufacturers. It makes sense to turn to a manufacturer that specializes in valves for your specific application. Metro Hydraulics designs and manufactures hydraulic valves for the agricultural, construction, turf and light industrial equipment markets. Valve types include 1, 2 and 3 spool directional control valves; two-position selector valves, lock valves, check valves, restrictor and relief valves all in a variety of sizes. If our standard valves don’t quite match up to what you need, we’ll gladly customize a design to meet your specifications.

At Metro Hydraulic, we’ve been engineering the design, manufacturing and marketing of directional control valves for more than five decades. Contact Metro to request a quote today!

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Deciding Between Bottle Jacks and Floor Jacks

For any job, in any industry, choosing the right tools to work with is crucial for ensuring smooth, efficient, and safe operations. In the automotive industry, professional and amateur mechanics alike often struggle with determining whether to use a floor jack or a bottle jack for repairs. One offers stability, ease of use, and high speed, while the other provides optimal power and a compact size.

Floor Jacks

Floor jacks are oriented with the hydraulic cylinder positioned horizontally. One of the most obvious advantages of floor jacks is their portability; unlike bottle jacks, most floor jacks have casters that allow for easy rolling back and forth, so jacks can be repositioned on the fly. Unfortunately, they are also somewhat bulky and unwieldy, which can be a drawback when space is at a premium.

Another advantage of floor jacks is that they sit low to the ground. This means they can be easily rolled under vehicles that also sit low. There are even specialized low-clearance jacks available for extremely low cars. And because floor jacks are designed with a long pump handle that allows for very quick lifting and lowering of cars, speedy operations are possible. The long handle also makes for easier use, an advantage for workers concerned about being able to operate jacks quickly in a pinch.

While providing the same power as a bottle jack, floor jacks do take up a lot of floor space. They usually require quite a bit more maneuvering to set up in a way that the handle can be properly utilized. They also require more storage space. And because of their horizontal design, floor jacks can hoist much less weight than bottle jacks.

Bottle Jacks

Bottle jacks, on the other hand, are mounted vertically, and the more straightforward design allows them to lift more weight to higher elevations. These jacks are also smaller and more easily stored than floor jacks, as well as significantly cheaper.

Truck owners, in particular, might find bottle jacks an ideal solution, as clearance is generally not an issue and easy storage is possible in a cab compartment. This portability also makes bottle jacks especially useful in an emergency, as they can be easily carried to the scene.

Compared to floor jacks, however, bottle jacks cannot offer high stability due to their narrow frame; floor jacks provide a more solid solution for tricky operations. Bottle jacks also have a minimum lift height, which may pose problems when working with standard-clearance automobiles.

Learn More

Bottle jacks and floor jacks offer distinct features and advantages, and each type is well-suited to a range of different automotive applications. These two types of jacks can sometimes even be put to good use in combination with one another. For example, when changing suspension components, it may be helpful to employ a floor jack to boost the vehicle and a bottle jack to keep the suspension isolated to one side of the vehicle.

To learn more about the differences between bottle and floor jacks, contact the team at Metro Hydraulic Jack Co. today. As a leading service provider and distributor of industrial jacks, we can walk you through the selection process and ensure you get the best solution for your unique needs.

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Hydraulic and Mechanical Jacks in the Construction Industry

A jack is a versatile tool that uses force to lift heavy loads. Screw threads and hydraulic cylinders are the primary mechanisms with which force is applied; therefore, jacks fall under the categories of mechanical or hydraulic.

House Jacks

Mechanical jacks, such as car jacks and house jacks, hoist heavy equipment and are rated on lift capacity. Hydraulic jacks, on the other hand, tend to be stronger and can hoist heavier loads higher. These types include bottle jacks and floor jacks.

Both mechanical and hydraulic jacks are used in countless industries, including the automotive, shipping, mining, waste removal, and retail sectors. Jacks are also commonly utilized in construction applications to lift heavy equipment and support or lift a building during renovation or relocation.

Mechanical Jacks in Construction

Often found in automotive garages, mechanical jacks use physical means to raise and lower loads, which typically range from 1.5 tons to 3 tons. A screw jack is a common type of mechanical jack, which works via a motor or lever cranked by an operator. A screw uses the shape of its threads to raise or lower the load, or a traveling nut does the lifting while the screw turns in place. Mechanical jacks are self-locking, which means that when power is removed from the jack, the screw stays in place until power resumes. This setup makes mechanical jacks safer than their hydraulic counterparts, because users don’t have to fear a loss of power.

Mechanical jacks are used to change stage designs, alter settings on woodworking machines, and adjust radio telescopes. In the construction industry, screw jacks — also called house jacks — are used to hoist buildings from their foundations for repair or relocation. In these applications, multiple jacks are utilized, and wood cribbing temporarily supports the structure until the desired lift is reached. Screw jacks can also be used for raising older beams or installing new ones.

Hydraulic Jacks in Construction

Hydraulic Jacks in Bridge Construction

Hydraulic jacks, predictably, use hydraulic fluid as their main power source. They consist of a pair of cylinders of different sizes connected by a pipe and hydraulic fluid or oil. The hydraulic fluid is forced into the cylinder of the jack via a pump plunger. When the plunger pulls back, oil goes from the reservoir into the pump chamber. When the plunger moves forward, the oil is propelled into the cylinder. This oil movement builds up pressure in the cylinder, and that pressure powers the jack.

The two most common types of hydraulic jacks are bottle jacks and floor jacks. Bottle jacks, also called hand jacks, are portable. The piston is positioned vertically, and it supports a bearing pad that touches the object being lifted. They’re most commonly used to lift cars, but they can also be used in the medical industry as hydraulic stretchers and patient lifts. Hydraulic jacks also can be utilized as pipe benders and cable splicers.

In floor jacks, also known as trolley jacks, the piston is in a horizontal position, and a long arm provides vertical motion to a lifting pad. There also are wheels and castors included in their build. In the construction arena, hydraulic jacks are used for lifting equipment and vehicles such as bulldozers, forklifts, trolleys, trailers, and excavators. These versatile jacks can also lift elevators in low- and medium-rise buildings.

Supplying the Construction Industry for Decades

For nearly 80 years, Metro Hydraulic Jack Co. has been a leading distributor and service provider for industrial hydraulic equipment, jacks, tools, parts, and lubrication equipment, and we’re proud to offer top-quality mechanical and hydraulic jacks for customers across a wide range of industries.

Request a quote today to learn how we can help with your specific lifting needs.

 

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Why is Safety Important?

In the construction industry, safety is always a relevant issue. Although the industry has taken steps to promote a greater awareness of the importance of safety in the workplace, accidents still occur. Some of these accidents are preventable, which is why it is important to educate industry members about safe practices and procedures regularly. Just recently, in Midtown Manhattan, a woman was struck by a flying buzzsaw from a nearby construction crew. NBC New York reports that the woman sustained a gash on her leg from the 3-foot blade and was taken to a nearby hospital for treatment. Thankfully, the injury was not serious. The incident is a strong reminder that accidents can and will happen, creating serious breaches in safety. In this case, the construction crew had been using the buzzsaw to tear up a roadway to fix an underground water main. Witnesses say that the blade came off the machine and was propelled down the sidewalk by its own force. As a result, workers and bystanders alike were put at harmful risk. To minimize the likelihood of accidents like the one in Manhattan, groups like the Construction Industry Safety Initiative (CISI) and Incident & Injury Free (IIF) Group strive to develop a culture where safety is a core value. Events such as Safety Week 2014, which was held in May, help promote this idea through free organized activities, employee training, and safety performance evaluations. At Metro Hydraulic, we’ve worked hard to encourage a safety culture at our distribution and service centers. We fully support efforts by the construction industry to bring the issue of safety to the forefront of discussion—and on workers’ minds. We hope that these events make a positive difference in the lives of both construction workers and the larger public.
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Building Bridges with Hydraulics

This year, two major bridges in the tri-state area have either begun or planned out major renovations and infrastructure repairs. These include the heavily traveled George Washington Bridge and Pulaski Skyway. Both projects have a budget of $1 billion or more, and require substantial construction. Metro Hydraulic is proud to report that some of this work will be completed with the help of our hydraulic equipment. The George Washington Bridge, an 82-year-old bridge that connects New York and New Jersey, is set to undergo a series of renovations and upgrades over the course of seven years. According to CBS, the planned changes include replacing 592 suspender ropes, repairing the main cables, installing new safety technology, and swapping the necklace lighting our for programmable LED lights. The extensive construction project is slated to begin in 2017 and end in 2024. Like the George Washington Bridge, the Pulaski Skyway is also 82-years-old. It was recently shut down for a reconstruction project that may take about two years. The Pulaski Skyway is often used by riders who travel from New Jersey to New York through the Holland Tunnel. Unfortunately for these commuters, the bridge needs significant renovations to its reinforcing bars, concrete railings, and roadbed, among others. The New York Times reports that the crossing has become “so frayed that the state installed netting to catch the falling debris.” Metro Hydraulic distributes hydraulic equipment to some of the construction companies that work on these projects and other, similar infrastructure repairs. As the tri-state area moves forward with renovations on the George Washington Bridge and Pulaski Skyway, they will rely on our high-quality equipment and timely shipments to get the job done as quickly and efficiently as possible. As a member of the New Jersey community, we look forward to the completion of these exciting renovations!
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Innovations for Hydraulics: Advanced Bridge Construction

One of our main sectors of business here at Metro Hydraulic is within the sphere of construction. There are many different uses of hydraulics in construction, from materials handling, to jacks and pullers, and other applications for transport of materials and work pieces. One of the coolest innovations we’ve seen in construction recently also utilizes hydraulics, and we’re intrigued. This article is a great expo on the new process called “Accelerated bridge construction” or “ABC”, for building highway overpasses and other bridge structures, and explains what we think is a great new process that improves vastly on the old for several reasons. First, it allows traffic to continue to flow while the building process, which takes up the majority of the time of construction, is in progress. This alone is immensely practical solution to the tedious detours associated with most other jobs of this type. The road closure time taken for this particular application was 8 hours – an incredible reduction of time and associated labor costs. The system that makes this possible is a combination of hydraulics and a lubricated sliding surface. The new structure is progressively slid into place along the sliding surfaces, pushed by hydraulic jacks which are incrementally moved as the new platform is slid into place. We’ve seen a lot of great innovation in our experience with construction, and this is no exception. ABC represents a significantly improved process that serves both commuters who use the roadways and construction companies that build them. It’s heartening for us as hydraulic suppliers to see hydraulic systems being used to such great effect for construction. We hope this process continues to be gain acceptance and be further implemented for infrastructure construction and repair everywhere.
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