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Cobb Sizing Tester in Indonesia

The Cobb Sizing Tester for Indonesia offered by Presto is one of the best testing instruments that can be used in paper and packaging industries for analyzing the water absorbing abilities of different materials such as Paper, cardboard, corrugated boards and fiber boards. The water absorbency of a packaging material helps the manufacturers in determining its suitability for working conditions that are wet or moist. With the help of this machine, it is possible to determine the extent of penetration that moisture can do to the packaging and hence it can be decided whether the product inside the packaging is safe or not. The device complies with all the international standards and can be used in international market too.

Presto is an industry trusted Manufacturer and supplier of highly efficient Cobb Sizing Tester for Indonesia that have been serving the packaging industries of many countries for a long time. The instrument is ideal for measuring the maximum amount of moisture or water a packaging can absorb. This property of materials helps in manufacturing the best product for moist or wet working conditions.

The instrument is also provided with a roller which is used to squeeze the excess of water from the test sample after it has been immersed in water for a particular amount of time. The device complies with all the necessary international quality standards and is provided to the clients with a user manual for a better understanding of working with the machine and a conformance certificate which can be traced to any of the laboratories that are approved by NABL.

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Tensile Testing Machine Digital

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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Vacuum Leak Tester in Indonesia

Presto is a major industry leading manufacturer and supplier of the High-quality Vacuum Leak Tester in Indonesia. This instrument offered by Presto is a major requirement in PET industries for testing the intactness of packaging materials and products such as PET bottles and plastic pouches. The instrument creates a high-pressure vacuum to test the integrity of the test specimen. At presto, we understand the value of quality for our clients. Hence, we provide testing instruments with best accuracy and efficiency so that our customers could ensure the best quality of products to their clients.

Presto has been providing high-quality Vacuum Leak Tester for Indonesia from a long time that have been trusted for their accuracy and efficiency. The instrument offered by Presto is manufactured in the state of the art manufacturing facility keeping all the international quality standards in focus. The instrument has a very simple and easy operation that offers precise quality testing results and helps in the better quality assurance of the products. The instrument comes with a digital timer with the help of which the test cycle time can be programmed accurately. The pressure gauge and control valve assist in controlling the pressure supplied to the instrument with high accuracy. There are two different sized desiccators provided with the instrument that allow users to test different sized test specimen with a single instrument. The device is manufactured with high-quality raw materials and is given a blue and grey finish with a powder coating that makes it corrosion resistant. The device is provided to clients with a user manual and a conformance certificate.

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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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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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Testing Instruments in Indonesia

Testing Instruments in Indonesia