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Month: March 2022

Underwater Hydraulic Tools

Underwater hydraulic tools are used for a variety of purposes by commercial dive companies. These underwater tools make it possible to build marine floor anchoring and rigging, perform maintenance on docks and piers, and much more. Stanley provides high-quality underwater hydraulic tools that are essential for underwater construction and demolition applications for oil platforms, archeological expeditions, dam construction sites, and a variety of other underwater applications.

Underwater Applications that Require Hydraulic Power

Hydraulic tools facilitate efficient underwater construction and repair efforts. Stanley hand tools are designed to cut, grind, and clean, to complete projects at the highest level of quality. Some of the most common underwater applications for Stanley hydraulic tools include:

Underwater Construction

Divers require unique tools to perform underwater construction and repairs to structures located beneath the water’s surface. Stanley’s underwater hydraulic tools can perform tasks like pressure grouting, underwater welding, scour and erosion repair, intake cleaning, mussel surveys, salvage attempts, and underwater concrete placement. Hydraulic power tools commonly used in these applications include:

  • Underwater Grinders: used to grind and clean underwater structures using a variety of wheels, brushes, and other attachments.
  • Underwater Cut-Off Saws: equipped with heavy-duty blades that can cut through materials like metal and concrete.
  • Underwater Impact Drivers: a dual-purpose tool consisting of an impact wrench and wood drill.
  • Underwater Impact Wrenches: designed to accommodate difficult underwater bolting applications.

Underwater Demolition

Divers who perform underwater demolition do so in dangerous conditions where there is little light and space. They use underwater hydraulic tools to clear obstacles from waterways and ports and to make space for bridges and dams to be built. These tools are also used to remove underwater hazardous materials and set up explosives for underwater mining operations.

Some of the hydraulic tools used in underwater demolition include:

  • Underwater Breakers: Stanley hand tools that can break up concrete and remove coral from under the water’s surface.
  • Underwater Hammer Drills: can drill 2” holes through concrete, rock, and masonry.
  • Underwater Chipping Hammers: heavy-duty underwater hydraulic tools made to chip underwater materials.
  • Underwater Sinker Drills: drills designed to drill up to 20’ into tough surfaces like concrete, rock, and masonry.

Underwater Mining Explorations

Underwater mining is an experimental industrial field in which miners dredge the sand to remove minerals and other valuable resources from the bottom of the sea. Professionals use a variety of underwater hydraulic tools to extract these materials. Bulk cutters are powerful tools that can grind the seafloor into gravel and silt so it can be removed and placed on surface mining vessels. Underwater breakers effectively break up concrete and coral while underwater hammer drills can drill 2 in. holes into concrete, rock, and masonry.

Deep-Sea Oil & Gas Drilling

Deep-water drilling requires the use of underwater hydraulic tools to search for oil and natural gas beneath the seabed. Certain hydraulic tools can provide horizontal and directional drilling while taking precise measurements, even on remote platforms. Necessary tools like drilling rigs can drill new hole segments, while drillships are used for their ability to drill on the seabed in deep seas. Drilling vessels are also designed to drill wells of deep seas to extract oil and gas. Jack-ups, or self-elevating drilling rigs, have moveable legs that can raise and lower to perform drilling at offshore locations.

Tooling Advantages

High-quality underwater hydraulic tools are necessary for performing underwater construction and repair, and they offer a range of advantages, including:

  • Durability & Maintenance: Hydraulic components are protected from damaging elements by the hydraulic fluids, extending their working life and requiring minimal maintenance.
  • Increased Power & Productivity: Pressurized fluids can transfer more energy than their gas or pneumatic counterparts, allowing manufacturers to design hydraulic tools in smaller, more efficient configurations.
  • Cold & Wet Conditions: Stanley underwater hydraulic tools can operate in sub-zero temperatures without affecting performance and can be completely submerged for extended periods.
  • Cost-Effective, Environmentally Friendly Operation: Stanley hydraulic tools are highly efficient and use less energy than other types of tools and they can be operated with little or no effect on the surrounding environment through the use of biodegradable hydraulic fluids.

Ready to Order Your Underwater Hydraulic Tools?

At Metro Hydraulic Jack Co., we offer a variety of underwater equipment solutions that can assist in your next project. We offer products for a variety of tasks from excavating for new construction to demolition and repair. If you’re ready to order underwater hydraulic tools for your next operation, contact us today.

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How Do Hydraulic Jacks Work?

Hydraulic jacks are essential tools in various industries that help with heavy lifting of different kinds of weights. These jacks use the power of hydraulic fluid or oil to move or lift heavy loads. The main mechanism of applying force differs from the jack type used, but it generally relies on a hydraulic cylinder or a screw thread. Typically, hydraulic jacks have two cylinders of different sizes that are connected with a pipe. The hydraulic fluid is then forced into these cylinders by a plunger. When the plunger moves forward, oil gets pushed into the cylinder, and when you pull the plunger backward, the hydraulic fluid gets pulled into the pump chamber. The combination of these movements delivers enough pressure to power the hydraulic jack. Read on to learn how a hydraulic jack works and how to use one.

The Process

Generally, when using a hydraulic jack, you insert the metal pumping bar into the equipment socket and then pump it. This raises the boom that lifts the load attached to it. Opening the valve that is usually at the jack’s base will lower the load. The primary power source of hydraulic jacks comes from hydraulic fluid, and pressure is created by the movement of this fluid in two cylinders via a plunger. The two cylinders differ in size, with the large cylinder producing more pressure. However, you will still get the same amount of pressure in both cylinders. The hydraulic fluid or oil will first move into the pump chamber when you move the pump plunger backward. This movement also opens the valve, which facilitates the movement of oil into the chamber. When you move the plunger downward, the oil gets into the cylinder via the discharge valve. Next, the suction valve also closes, thereby creating pressure in the ram. The resulting pressure lifts the piston of the chamber, which then helps you lift a heavy load. Generally, hydraulic jacks function based on the movement of oil from the pump chamber to the cylinders. By continually making these movements, you can lift heavy weights higher and higher. The pump will continuously exert small bits of force on the oil until it creates substantial pressure to push up the jack and lift a load. With just the simple hand pump mechanism, the hydraulic jack will exert massive forces. You also need to ensure that all the hydraulic jack parts are well maintained to keep them properly functioning.

The Working Principle of Hydraulic Jacks

Hydraulic jacks work based on Pascal’s principle. Blaise Pascal, a French scientist, developed this principle over 350 years ago and it has become the backbone of fluid mechanics. As per Pascal’s principle, pressure exerted at any point on liquid in a container gets transmitted to all other parts of the liquid without any loss. This means the pressure at the top of a container and the one at the bottom will be equal.

Request Your Custom Jack Today

Hydraulic jacks make work simpler in various industries, such as lifting vehicles above the ground level. The construction sector is also heavily reliant on hydraulic jacks for easier completion of several tasks. With a simple hand pump mechanism, you can lift heavy loads with ease. Make your work more efficient and simpler by getting hydraulic equipment from Metro Hydraulic Jack Company. We have been the leading company in supplying quality hydraulic lifting systems to clients all over the country since 1941. We have a full line of hydraulic jacks, tools, and add-ons beneficial to several sectors. Our products include: Contact us today or request a quote for the hydraulic items you need from us. Metro Hydraulic Jack Company is your single source for all your hydraulic needs.
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For over 70 years, Metro Hydraulic Jack Company, a third-generation, family-owned and operated business, has been providing industrial hydraulic parts and equipment services to commercial, automotive, marine, refuse, and construction industries.


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