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Bottle Burst Tester - Computerized Model

Bottle Burst Tester is a consistent tool used to perform Bottle burst test on PET bottles with minimum pressure and check the volume expansion of test samples. The testing instrument Bottle Burst Tester - Digital is used to measure the Burst Strength of PET bottles when subject to pressurized air. It measures the volumetric expansion of PET bottle under pressure conditions to rupture or burst the bottle.

PET bottles are widely used in industries for bottling of a variety of products and the carbonated drinks are one of them. One problem with the bottling of carbonated drink is that the PET bottles can easily burst if the pressure is high or the bottles have low strength. For this the manufacturers of the PET bottles need to test the burst strength of the bottles using proper testing methods and testing instruments. Touchscreen Model of Bottle burst Tester is one of the best suited testing instruments that can be used for testing the strength of the bottles.

The bottle burst test is commenced by exerting a high amount of pressure in the bottles using highly pressurized air. The pressurized air replicated the pressure exerted on the bottles when a carbonated drink is filled inside them. The testing procedure helps in testing various aspects of a bottle such as expansion volume, burst strength and thickness of the walls of the PET bottles. Presto’s Bottle burst tester Touchscreen Model model is a highly sophisticated and accurate testing instrument that is used for testing the strength of the bottles widely in PET industries and bottling units.

Standard: ASTM C147-86(2015).

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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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Laboratory Hot Air Oven

Hot Air Oven is a unique test cabinet designed to detect the change in the physical characteristics of the material and to ascertain the actual working life at elevated temperature.

Works on Forced air circulation, thermal convection principle, performs various types of tests like heat deformation, compression set, heat resistance required in rubber and plastic industries. The Hot Air Oven comes with air circulating fan for maintaining heating efficiency.

The Presto Laboratory Hot Air Oven can be used to determine the effect of elevated temperature on various types of materials such as rubber, textiles, yarn, plastic, metal, paper and more. Therefore, it is widely used for testing heat resistance and heat deformation in the rubber industry, paper industry, textile & yarn industry and various other fields. The Presto Hot Air Oven is a reliable and time tested instrument. The exterior has been given an autumn gray and blue combination finish and the chrome/zinc plating ensures resistance to corrosion.

The Presto Laboratory Hot Air Oven comprises of a double walled chamber, wherein the inside wall is fabricated using heavy stainless steel and the outside wall is made of duly powder coated mild steel.  Impartial mineral glass wool is incorporated within the walls to ensure that the chamber is well insulated.  A special T/P action ensures that the temperature does not overshoot the designated level.

The instrument comes complete with an instruction manual, electric wiring diagram and a calibration certificate traceable to NABL approved labs.

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Conditioning Chamber

The Conditioning Chamber is best used for testing the materials under different environmental conditions. The device aids in determining the actual effect of different environmental extremes over physical and chemical properties of a material. The quality and efficiency of electronic appliances, rubber, textiles, etc. are tested by creating a temperature required. The instrument removes the moisture level from the testing material and is very useful for testing the quality of automobile parts, rubbers, plastics, and semiconductor devices.

Presto manufactures the efficient, reliable, compact conditioning chamber for the ease of the end users and ergonomics. The double wall structure is filled with the glass wool insulation that prevents maximum heat loss. The two adjustable perforated shelved are used to place the testing sample, where a low-pressure boiler generates steam to maintain chamber humidification. The chamber has circulation fan for uniform distribution of humidity and temperature. The stainless steel is used to make the inner and outer chambers as needed.

The machine is effective to condition textile samples due to quick humidity equilibration time. To alert, an electronic digital controller is provided inside machine that alarms for high temperatures. The machine removes the moisture level from a testing sample with effective temperature controls. The device is equipped with digital controllers, user-friendly, convenient to use, and compact to handle.

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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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Wall Thickness Gauge

Benefits of Wall Thickness Gauge

Magna-Mike 8600- PPT 

Magnamike is a high-quality product by Olympus. It is the best device to perform wall thickness gauge testing. The instrument provided a non-destructive method of testing the wall thickness of the PET bottles. Presto Stantest is an authorized dealer of the device. The device is used to measure the thickness of non-ferrous material that ranges from PET, plastics, preforms, plastic bottles, water tanks glass bottles, aluminum, etc. The wall thickness gauge offers reliable and accurate test results.

The best testing device which is used to perform bottle thickness measurement is Magnamike 8600 – wall thickness gauge. The instrument is widely used to test the quality of non-ferrous material like Preforms, glass, water tanks, aluminum, foam, PET, etc. The testing instrument works on the principle of Hall Effect technology. It works on a very simple magnetic procedure that makes a simple and repeatable measurement of non-ferrous materials. The device is provided with the digitally colored display that clearly shows the result of thickness measurement on the screen.

Presto offers the best quality of wall thickness gauge testing instrument i.e. Magnamike 8600. The instrument works on the basis of Hall Effect Technology. To perform the test efficiently, it is necessary to access both sides of the container. The ball is placed inside the bottle, and the magnetic probe is placed outside. The sensor inside the probe measures the distance between the ball and the probe tip which helps to measure the thickness of the bottles accurately and efficiently. The wall thickness gauge is used to measure the thickness of plastic bottles, glass containers, aluminum beverage cans, foam, paper glass, HDPE containers.


  • Thickness of Plastic Bottles & Packaging for Pharmaceutical and Medical
  • Measuring Thickness of Glass Containers & Scientific Glass.
  • Measuring Thickness of Aluminium Beverage cans.
  • Measuring Thickness of Paper Glass
  • Measuring Thickness of Foam
  • Measuring Thickness of HDPE containers


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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 Srilanka

Testing Instruments in Srilanka