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Tensile Testing Machine Digital

How Does Tensile Testing Machine Work?

The Presto Tensile testing Machine is highly recommended for evaluating the tensile strength of products and materials. The equipment is based on the Constant Rate of Traverse (CRT) principle. It is equipped with an upper jaw and a lower jaw.

While the upper jaw is stationary, the lower one can be moved at a designated fixed speed with the help of a motor. The test specimen is held between the two jaws. The lower jaw is gradually made to move to evaluate the tensile strength of the sample.

The motor is equipped with a gear Box and a lead screw arrangement. The machine also incorporates a special sensor, connected with a load cell. The sensor is capable of judging the load exerted on the stationary jaw and directly indicating the reading in kgs (in digital format).

There are special case hardened lead screws which ensure stability and durability. It incorporates a standard branded motor and CE standard electrical wiring. The completely modular construction of the Presto Tensile Testing Machine ensures trouble free maintenance and easy operation.


Presto Tensile testing Machine is highly stable machine, built using heavy mild steel. Its strength and high quality can be attributed to the various built in safety arrangements, such as over load and over travel protection.

The Presto Tensile testing Machine has an Autumn Gray & Blue combination finish and bright chrome / zinc plating has been added to impart a corrosion resistant finish.

The Instrument comes complete with Instruction Manual; Electrical Wiring Diagram & Calibration Certificate traceable to NABL approved Labs.

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Polariscope Strain Viewer in Kenya

The Polariscope Strain Viewer for Kenya is one of the highly sophisticated and advanced testing machines offered by Presto Stantest that is ideal for use in PET and preform industry. The device is used for testing the quality of the PET preforms that are used for manufacturing the PET products such as jars and bottles. The preforms have many different kinds of defects that may ruin the quality of the final PET products. In that case, the manufacturers need to make sure that only perfect quality preforms are blown to final products. In order to do that, the manufacturers test the quality of the preforms using proper instruments. The polariscope is a very efficient instrument that helps the manufacturers in ensuring that only the best quality of preforms are blown to final products. The instrument is efficient in detecting various defects in preforms like air bubbles, flash marks, short shot, flash marks, photoelasticity and many others. The appliance is designed to offer a very simple and easy operation and is able to offer highly accurate test results to the users.

Presto is a renowned manufacturer and supplier of highly advanced Polariscope Strain Viewer for Kenya that helps the PET and preform industry in ensuring the best quality preforms used for blow molding process. The instrument efficiently detects various defects in the PET preforms and helps the manufacturers in saving a lot of money, time, and resources. The device is supplied with two different light sources for testing that are white light and a monochromatic light source that are used for detection of various defects.

There is also a preform defect chart that is provided with the device as an optional accessory which is used for comparing the defects found in the preforms. The instrument is in conformance with all the quality testing standards and is provided with a user manual as well as a conformance certificate.

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Color Matching Cabinet in Kenya

The Color Matching Cabinet for Kenya offered by Presto is a premium quality testing instrument that is used for color quality assessment of various materials and products in different industries. The color of any products is a major aspect of the quality of the products. The manufacturers need to ensure that color quality and consistency of their products is of the best level so that more and more customers are attracted towards it. This instrument is capable of providing accurate color consistency analysis to the users. The device is widely used in different production verticals and industries such as automobiles, plastics, textiles, food, paint and coating industries. The instrument is best for the elimination of the phenomenon called metamerism which causes the different appearance of colored products under different lighting conditions.

The apparatus is given with a very robust design with a sturdy operation which is best for industrial working environments.

Presto has been supplying highly efficient Color Matching Cabinets for Kenya that is employed in industries for testing the color consistency of the products and materials. The apparatus is provided with several different light sources based on the requirements of the clients. These light sources include D 65, InCAA, TL 84, TFL, CWF, Ultraviolet black light. These light sources accurately replicate the actual lighting conditions. There are individual switches provided for each of the light sources for separate operation. The use of these light sources helps the manufacturers in ensuring a uniform appearance in every lighting condition.

The instrument is also supplied with a user manual for a better understanding of the operation of the device.

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Edge Crush Tester in Kenya

The Edge Crush Tester for Kenya offered by Presto is a primary testing instrument that is employed in packaging industries to test the strength and quality of the packaging materials. The edge crush strength of any material is a major indicator of its strength and quality. The manufacturers of packaging materials need to test this property of the materials to ensure that the best quality of products is delivered to the clients. The instrument has simple and accurate operation designed especially for the rigorous working environments of industries. The machine is in full compliance with the international quality standards hence assures best test results.

Presto is a global supplier and manufacturer of highly accurate and efficient Edge Crush Tester for Kenya that are employed in most of the packaging industries. The machine is equipped with an advanced peak load indicator which accurately displays the test finding. The instrument is also loaded with different safety features such as a limit switch and overload safety. The device is also used for performing other tests such as flat crush test and ring crush test. There are different templates and fixtures supplied to perform the test correctly.

The apparatus is built upon a rigid base of the heavy metal plate. The machine is painted in blue and grey colors that make it corrosion resistant. The instrument is supplied complete to the clients along with a calibration certificate and a user guide.

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Melt Flow Index Tester

Benefits of Melt Flow Index Tester

Presto Melt Flow Index tester is used for evaluating the flow properties of molten plastics or resins. The Melt flow Index of thermoplastic materials is defined as the rate of flow (in grams per ten minutes) of extrudates of molten resins through a jet of a particular length and diameter. The test is carried out under prescribed condition of temperature, load and piston position in a cylindrical cavity inside a heated metallic tube barrel. The Presto Melt Flow Index tester accurately provides all standard terms of temperature and pressure strictly as per standards ASTM D 1238-1992, ISO 1133, IS 2267-1972, IS 2530-1963, IS 10810-1984.

Presto Melt Flow Index tester is fitted with a Microprocessor based PID Temperature controller, with a temperature range from ambient to 400°C. It has a resolution of 0.1°C and an accuracy of ± 0.1°C. The instrument incorporates a digital presettable timer with a range of up to 59 minutes; 59 seconds and buzzer output. The provision of automatic sample cutting ensures the accuracy and smooth operation.

The equipment is built on a rigid metal base plate to ensure stability during operation. The Presto Melt Flow Index tester is finished in Autumn Gray & Blue combination painting. Further, a bright chrome / zinc plating has been added to impart a corrosion resistant finish. The Instrument comes complete with an instruction manual; Electrical Wiring Diagram & Calibration Certificate traceable to NABL approved Labs.

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Hot Wire Bottle Cutter NXG

Presto’s Hot Wire Bottle Cutter is a widely used instrument in PET bottle industries. PET bottles are mainly used for packaging of various products such as carbonated drinks, food items and so forth. They are also used for packaging of chemical. The shape and size of the bottles is important for the better safety of the products that are packaged in the bottles. For the best shape and size, it is important to test the weight of every section of the PET bottles individually. This process is called the section weight analysis. For accurate section weight analysis, the individual sections of the PET bottles need to be cut properly and precisely without causing any deformation in the shape of the bottle. The Hot wire Bottle cutter helps in this testing procedure of the PET bottles.

The Presto’s Hot Wire Bottle cutter NXG is designed to easily cut the individual sections of the PET bottles. The capacity of the bottles that can be cut using the instrument ranges from 200 ml to 2000 ml. the maximum diameter of the bottles that can be cut with the hot wire bottle cutter is 110 mm. Each section of the bottles is cut in exact dimensions and not deformation occurs in the shape and size of the bottles during the cutting. After accurate cutting of the sections, each section is weighed on a digital balance for accurate measurement of the weight of the sections. This helps in controlling the manufacturing process for better quality assurance and quality control.

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Polariscope Strain Viewer

Presto offers Polariscope, a highly efficient strain viewer that helps the manufacturers in testing the quality and transparency of the products so that best quality assurance could be ensured to the customers. The working of the Presto’s Polariscope is based on the principle that any change in refractive index is due to different strain distribution and this leads to lower transparency of the material. The testing instrument offered by Polariscope comes in variety of sizes and specifications according to the requirements of the clients

Photoelasticity is a major phenomenon that occurs in PET, Preforms and Glass products. Photoelasticty means the change in the refractive index of the material when there is non-uniform strain distribution throughout the material. Photoelasticity can be a great problem for the manufacturers of PET and glass products as this is great flaw in the quality of the products.

Presto offers two models of Polariscope that are Polariscope Dx and Polariscope computerized. The instruments are manufactured with best quality of materials to provide an extended service life and accurate testing procedures. The testing instrument is provided protection from corrosion and rust with Zinc and chrome plating and has been given a smooth and attractive finish in grey and blue color. The instrument is also provided with an instruction manuals and a conformance certificate that can be traced to any of the NABL approved laboratories.

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Bursting Strength Tester

Bursting Strength Tester is a reliable index of measurement of strength and performance of materials like paper, paper boards, corrugated boards and boxes, solid fiber boards, filter cloth, industrial fabric, leather and Rexene. With the help of a bursting strength tester, industries can ensure the best quality of products to their clients. Presto is one of the leading manufacturers of Bursting Strength tester.

Other models available of Bursting Strength Tester are: Digital Model, Pneumatic Model, Computerized Cum Digital Model with Manual Clamping and Computerized Cum Digital Model with Pneumatic Clamping.

The bursting strength of the sample is measured by applying the hydrostatic pressure required for producing rupture of the material, when pressure is applied at a controlled increasing rate through a rubber diaphragm. The value of the bursting strength will give an indication of the maximum weight that may be carried in the box. The quality of Corrugated Boxes is graded based on the value of their bursting strength. The Analogue Bursting Strength Tester is a testing instrument that offers highly reliable and accurate test results.

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Testing Instruments in Kenya

Testing Instruments in Kenya