A hydraulic torque wrench is a power instrument intended to apply force to a latch to accomplish legitimate fixing or releasing of a joint using hydraulics. A force wrench is applied to the nut either straightforwardly or related to an effect attachment. Water powered force torques apply a foreordained, controlled force to an appropriately greased up clasp.
The pressure driven force wrench was developed by George A. Sturdivant in Houston, Texas. The idea of a hydraulic driven force wrench was first brought to showcase in a crude structure in the mid-1960s, and from that point forward a few significant advances have been created by producers which address significant advances in torque innovation.
Types of hydraulic torque wrenches
Depending on the application, there are two types of hydraulic torque wrenches, with one or the other being the best tool.
- Square Drive Hydraulic Torque Wrench
- Low Profile Hydraulic Torque Wrench
Square Drive Hydraulic Torque Wrench
Its drive shaft drives the socket to preload the nut and is commonly used to tighten and remove bolts longer than 1 inch. Additionally, it is used with various high-strength sockets to act on multi-specification bolts within a tolerable torque range. The square drive hydraulic torque wrench is more universal than the low profile hydraulic torque wrench. Click Here to find best
The one-piece shell can greatly improve the strength and durability of the shell. It has a longer life, is stronger and lighter and can accommodate a range of work heads with just one power head. There are no operating space limitations as 360° x 180° rotatable pipe fittings are used. You can freely position the 360° fine-tuning reaction arm on a stable pivot with the easy-press trigger lock. Each pad rotates 27 degrees and moves quickly.
Accuracy can reach 3% when using a precise ratchet. The short nose radius makes it easier to maneuver in tight spaces. Anti-corrosion surface treatment for use in extreme conditions. Square keys are available in different sizes. Aluminum-titanium alloy and high-strength alloy steel are used in all items.
Low Profile Hydraulic Torque Wrench
Its drive shaft rotates the ring to preload the nut, which is commonly used to tighten and remove bolts larger than 1″ in diameter (reducers can be used for smaller bolts). It is typically used in situations where the working area is limited, such as double nuts, small bolts or nuts too close to obstacles, among others Most technical requirements are met with our hollow hydraulic torque wrench variants Made of aluminum-titanium alloy and aluminum high strength alloy steel, all products have high strength, high toughness, slim design, double action, high speed and large bend.
The low profile hydraulic torque wrench has a maximum working pressure of 70MPa and a torque repeatability of 3%. The 360° rotatable hose connector is ideal for small spaces and easy positioning. The low-profile hydraulic wrench is tough with its heavy-duty construction.
Using a Hydraulic Torque Wrench
Hydraulic torque wrenches are used in petroleum, wind power, heavy industry, natural gas and factory processing to tighten and loosen bolts. When tightening heavy bolts with large threads, torque units and torque wrenches are very effective. They are connected to the hydraulic pump and apply a specific torque to the bolt (torque control is achieved by adjusting hydraulic oil pressure) to prevent damage or stress to the part that could be caused by over-tightening. They are designed for narrow and hard-to-reach places.
Hydraulic Torque Wrench Working Principle
It is essential to recall that the idea of activity of the hydraulic torque wrench depends on Newton’s regulation, which expresses that for each power applied, there is an equivalent and inverse response force. Tension builds up in the opposite direction when a wrench is turned on a nut or bolt. It acts as a clamping force, pulling the bolted components in the same order with some pressure or load. As the torque increases, the integrity of the joint weakens, allowing the bolt to loosen or tighten.
The torque required to tighten or loosen a fastener is determined by its length, size and type, as well as the quality of the fastener and the lubricant used.
An electro-hydraulic pump distributes power from the power pack to the hydraulic wrench via two high-pressure hoses. After starting, it creates pressure inside the engine. Then it transmits the hydraulic oil from the inside through the pipe to the hydraulic wrench, and then pushes the piston rod of the hydraulic wrench, which drives the front part of the twist. Finally, the ratchet wheel can move the drive shaft to complete the screw preload task.
Support products for hydraulic wrenches include electric hydraulic pumps, such as solenoid valve drive (electric) or pneumatic drive (pneumatic). The hydraulic wrench working head consists of three main components: Click Here to find best.
- The body (also called shell),
- The cylinder and
- Transmission sections.
A pair of movements includes the cylinder output force, the cylinder piston rod and the transmission components. The amplifying arm of a hydraulic driven wrench estimates the distance between the focal point of the cylinder and the focal point of the transmission part. Hence, the hypothetical result force of a hydraulic wrench is equivalent to the result power of the cylinder duplicated by the power arm. Notwithstanding, the genuine result force is lower than the hypothetical result torque because of frictional obstruction.
Benefits of Using a Hydraulic Torque Wrench
It offers advantages, for example, lighter weight, more modest nose sweep aspects to fit in restricted spaces, utilization of colorful combinations, incitation triggers on the actual device similarly, multi-position response components, 360° × 360° cylindrical turn joints and the capacity to deal with various devices all the while fueled by a solitary power supply.
A hydraulic torque wrench is essentially calmer, lighter and more exact than pneumatic effect torques with a practically identical force yield and is subsequently an appealing option in contrast to exceptionally boisterous effect wrenches or force multipliers for some clients. What’s more, cumbersome instruments, which until the appearance of the water powered force wrench were the main reasonable choice for working with exceptionally enormous stray pieces.
