Made-to-order lab. equipment 

(1) Hydraulic Pinching Tool
(2) Break-point Tester
(3) Slit Flow Tester & Angle of Repose Apparatus                                  

(1) Hydraulic Pinching Tool

Hydraulic tube pinching tool is used to separate linac tube from vacuum pumping system.  Its function is to pinch copper tube of ¾ inch dia. & wall thickness of 2.5 mm. Hydraulic Pinching Tool comprises of hand pump, 3 meter long flexible hose pipe, pressure gauge & hydraulic cylinder with pinching jaws. Capacity of Hand Pump is 10,000 PSI.  Pressure Gauge is provided to know at what pressure pinching is taking place.  Jaws have proper rounding such that pinching results in vacuum tight joint after pinch off.  Pinching takes place  at the pressure of 8,000 PSI.

(2) Break-point Tester 

Break-point tester is used for checking the breaking-point pressure of ceramic components as well as those made from similar brittle materials.  The Item which is to be tested for break-strength  is placed in the cavity of die plate & hydraulic pressure is applied.  The specially designed pressure indicator has 2 pointers, one of which shows the exact pressure applied on the ceramic balls at the time of breaking. 

(3) Slit Flow Tester & Angle of Repose Apparatus 

Slit Flow Tester is used for studying the flow properties of free flowing powders such as pure terephthalic acid (PTA) powder.  The sample is introduced into a hopper with a motorized door. This door rises allowing the powder to flow through it. The width of the slit when 100 gms. of powder has flowed through, is measured using a load cell. The experiment is repeated 20 times & average width is calculated.  This average  width determines the flow property of the sample powder. 

Study of flow properties of free flowing powders such as PTA is also carried out by means of Angle of Repose Apparatus.  This apparatus is used for the purpose of determining the angle of repose of sample powder.  A sample is poured through the apparatus in a controlled manner onto a vertical plate. The vertical height & horizontal distance of the resultant semi-cone of powder are used to calculate the angle of repose. This method is capable of measuring angles of repose from 31 degrees to 43 degrees. The latter corresponds to the worst flowing powder which will flow freely through the apparatus.