How Does a Two Speed Pump Work?

January 15th, 2019|

A two speed pump is a hydraulic hand tool which contains an external pressure release valve, a factory set safety relief valve, and a has a setting for a changeover pressure. Typically it creates more [...]

How Does a Single Speed Pump Work?

December 19th, 2018|

A single speed pump is a hydraulic hand tool that forces hydraulic fluid into a cylinder bore through a hose or other connection. It is one of the easiest pumps to use, containing a pumping [...]

How Does a Double Acting Hydraulic Cylinder Work?

November 30th, 2018|

A double acting hydraulic cylinder (a.k.a. double acting ram) is a cylinder that contains two ports through which hydraulic fluid can pass. Read on to learn more about how a double acting hydraulic cylinder works. [...]

How Does a Single Acting Hydraulic Cylinder Work?

November 30th, 2018|

Like all cylinders, a single acting hydraulic cylinder (a.k.a single acting ram) is based on the concepts of pressure and piston effective area. With only one inlet through which an incompressible fluid, such as hydraulic [...]

Considerations while Using Hydraulic Tensioners

July 19th, 2018|

The objective of any tightening operation is to achieve the correct and uniform clamping force in the joint. When using hydraulic bolt tensioners, the bolt tension (or preload) is known through the hydraulic pressure applied, [...]

What are the accepted tolerances for manual torque tools

April 8th, 2018|

It is our experience with manual torque wrenches that approximately +/- 3% is standard when considering manual (“clicker-type”) torque wrenches. I say “approximately” because care must be taken as this changes from manufacturer to manufacturer. [...]

What are the accepted tolerances for Hydraulic Torque tools

April 8th, 2018|

Our experience with hydraulic wrenches, of several makes and models, is that +/- 3% is the industry standard for accuracy related to the output of hydraulic torque wrenches. This means that if a torque wrench [...]

How often should you calibrate and/ or certify your torque tool

April 8th, 2018|

I have personally heard many opinions on this topic and a lot of times, customers default to having their tools recertified every 12 months. However, how often you need your tool recertified really depends on [...]

What is the difference between calibration and certification

April 8th, 2018|

A lot of times you hear people using the word calibration and certification interchangeably. Like synonyms. However, these two terms don’t mean the same thing. Calibration refers to the process of repairing or adjusting an [...]