Our wide range of Paper Testing Equipment contains Folding Endurance tester, Quadrant Scale for GSM, collapse tester for paper tubes and various other machines. We use top quality material to manufacture these machines. We export various ranges of machines based on the specifications given by the marketers. We offer testers with High grade quality, reliable models and affordable prices.
The drop tester is used for determination of effect of dropping on transport packages. This test helps to determine the ability of the packages and packing material placed inside them for cushioning to provide protection to its contents and to measure the ability of the container to withstand rough handling.
In this test the package to be tested is placed on a frame having two swivable doors. The height of the frame is adjusted to the desired value. The doors are opened suddenly, the package is dropped on to a steel platform, and the extent of damage caused evaluated.
The GlobeDropTesterfor transport packages consists of a dropping mechanism and a heavy fabricated base plate fitted with a heavy vertical pipe for guiding the dropping mechanism.
The Bending Resistance of paper, paperboard, and other flexible flat-sheet materials is determined by measuring the force required to bend a specimen under controlled conditions. The method is not recommended for soft, limp or creped materials. Materials such as tissue or toweling would not normally be tested by this procedure and materials with a pronounced degree of curl would give erroneous results.
The Globe Bending Resistance Tester consists of a balanced pendulum pivoted at its center of gravity on two jewel bearings and provided with pins at different distances for attaching weights below the center of pivot. The lower end of the pendulum is fitted with a pointer which moves parallel to a scale mounted over the base of the instrument. The scale is graduated in both left and right directions. The upper end of the pendulum terminates in a triangular vane. The specimen presses against this vane and causes the pendulum to deflect when the test is conducted.
Bursting Strength Tester (With Two Pressure Gauges) of any material such as fabric, leather, paper etc. is its strength under multi-directional force and is defined as the hydrostatic pressure required to produce rapture of the material when pressure is applied at a controlled increasing rate through a rubber diaphragm.
Paper tubes used for winding yarn, shall have adequate mechanical strength. One of the tests used for ascertaining the mechanical strength of paper tubes is the collapse test. In this test, a test specimen taken from the sample of paper tube is placed on a rigid flat metallic plate and pressed against another rigid flat metallic plate. The maximum force required to collapse the tube is then measured.
The Globe Collapse Tester for Paper Tubes consists of a rigid platform for placing the test specimen on, an arrangement for compressing the specimen with the help of a manually operated hydraulic jack and measurement of maximum force with the help of calibrated pressure gauge with a dummy pointer.
The test specimen is placed on a flat steel platform and a moving flat rigid plate is lowered on it with the help of a hand wheel and screw arrangement so that it just touches the top of the sample. The load is then applied by a manually operated hydraulic jack placed below the lower plate, which lifts the lower plate to compress the specimen against the upper plate. The hydraulic pressure in the jack which is proportional to force on the specimen is measured on a pressure gauge with a dummy pointer to record the maximum pressure corresponds to collapse strength of the tube. The collapse strength is then determined in force unit with the help of calibration certificate for the pressure gauge provided with the equipment.
Two pressure gauges are fitted to the equipment, one for measuring low force and the other for measuring high force. An isolating valve is also provided on the low range pressure gauge for its safety to isolate it while conducting test on the high range pressure gauge.
Transport packages shall possess sufficient compression strength so that they do not get deformed or crushed when stacked one above the other, either during transit or in storage. The compression strength of transport packages is determined by placing the package on a flat platform and pressing it down from top with the help of another flat plate.
The Compression Strength Tester (For Transport Packages) for transport packages is fabricated out of rigid mild steel sections and plates. The lower platen on which the box is kept for pressing is fixed on the frame of the tester. The package under test is placed over this platen and pressed down from top with the help of another platen. The upper platen is moved down by means of a screw arrangement. This platen is pivoted so that is can tilt to align its lower face with the top of the package, if the top and bottom faces of the package are not parallel. For conducting edge loading tests the upper platen can be held rigidly so that it does not tilt.
Folding or creasing plays a very important part in life of paper. Almost all varieties of paper are subjected to either single or repeated folds in the course of their application. Determination of folding resistance is thus of prime importance in assessing suitability of any paper for the end use.
Folding resistance is usually determined by either the MIT folding endurance method or by the Schopper folding endurance method. While the former is suited for any thickness of paper up to 1.25 mm, the latter is generally used when the thickness of paper is less than 0.25 mm.
Folding or creasing plays a very important part in use of paper. Almost all varieties of paper are subjected to either single or repeated folds in the course of their application. Determination of folding resistance is thus of prime importance in assessing suitability of any paper for the end use.
The Globe MIT Folding Endurance Tester for paper consists of a motor, pulley set, and linkage mechanism to give the desired angular oscillation to the folding head. A set of five interchangeable folding heads is provided to the papers of various thicknesses. A spring loading clamping jaw constrained to move without rotation in a direction perpendicular to the axis of rotation of the folding head and having its clamping surface in plane of this axis holds one end of the test specimen while the other end is held in the folding head.
The weight per unit area or grammage of any material in form of sheets is usually expresses as its GSM, that is its weight in grams per square metre of its area. It is one of the most important parameters to determine the quality of any paper. In addition to paper, it can also be used for evaluation of grammage of fabrics, coated fabrics, felt, plastic films and sheets, etc.
Scale A : 0 - 160 x 0.5 GSM (sample size 25 x 25 cm)
Scale B : 0 - 1000 x 4 GSM (sample size 10 x 10 cm)
Scale B : 0 - 600 x 2 GSM (sample size 20 x 12.5 cm)
Other scales can also be offered against specific requests.
The amount of water absorbed by any paper is dependent on various characteristics such as its sizing and porosity etc. The sizing of paper can be determined by conducting a water absorption test with the help of a Cobb tester.
In this test the weight of water absorbed by a known area of the paper under test in a specified duration of time is determined, from which the sizing characteristic is evaluated. However, this method is not recommended for determination of sizing characteristic of writing paper.
Tensile strength and elongation are the two most important properties that determine the suitability of any material for a particular application. These properties are determined with the help of a tensile testing machine. The load range and rate of elongation are selected depending on the characteristics of the materials being tested.
The Globe Tensile Testing Machinefor paper is suitable for determining tensile strength and elongation of paper and similar materials. It is based on constant rate of traverse principle, in which one end of the test specimen is held in a grip attached to a load measuring device and the other end is held in a grip which is made to move at a fixed speed with the help of a motor, worm reduction gearbox, and screw arrangement.
The load exerted on the test specimen is measured with the help of a load cell and digital load indicator. The load indicator has a facility of retaining peak force applied on the test specimen in its memory to indicate the breaking load of the specimen. An overload relay is provided to stop the motor automatically in case of overload. The equipment also has an arrangement to stop the movement automatically at any pre-set separation of the grips.
The traverse of the moving group is indicated on a digital readout to facilitate determination of elongation. The speed of traverse of the moving grip can be changed by changing the position of a V-belt in a set of cone pulleys.
The effect of vibrations experienced during transport on packaged materials is normally determined by subjected them to a simulated vibration test.
In this test, the package under test is placed over a vibrating table capable of moving about a vertical axis by a fixed amplitude at a fixed frequency. The effect of a specified number or period of vibrations on the packed materials is observed to evaluate the resistance provided by packaging to such vibrations.
The Globe Vibration Tester for transport packages consists of horizontal table mounted above an oscillating block and rigidly connected to it. This table is given oscillatory movement of a fixed amplitude by the movement of the block, which is in turn held over two hardened and ground carbon steel rods and is given an oscillatory movement with the help of an electric motor coupled to a V-belt and speed reduction pulley arrangement. The block has two gunmetal bushes to give it a long working life.
The rotary movement of the pulley is converted into linear movement of the block with the help of an eccentric pin and a linkage mechanism. The eccentric pin is fixed to a disc mounted on the shaft on which the pulley is mounted.
In the fixed frequency model of the tester, the frequency of vibrations is set at 4 Hz. In the variable frequency model it can be set at any desired value in the range of 1 to 8 Hz with the help of a variable frequency inverter drive supplied with the equipment. A six digit electronic counter with non-contact infrared sensor is provided to record the total number of oscillations undergone by the components under test. The counter has a memory backup to retain the count of number of oscillations undergone in case of accidental switching off of power supply to the equipment. A key-operated reset switch is provided to reset the count to zero at the end of test duration.
The package under test is placed on the vibration table. It is prevented from dropping down by a low level guard along the periphery of the table. The table is square in shape so that the package can be rotated through 90° after every 25% of total number of specified oscillations.
The GLOBE Thickness Gauge for paper is a dead load type bench thickness gauge. It consists of a dial micrometer and a flat indenter which exerts a specified pressure on the test specimen kept on an anvil. The contact faces of the anvil and the indenter are ground flat and are perpendicular to their axis. Pressure is applied by means of a dead weight placed on the indenter.
The dial micrometer which indicates the thickness of paper is mounted above the indenter such the its tip rests on the upper end of the indenter rod. The indenter is raised and lowered by means of a lifting lever.
The whole arrangement is mounted on a cast iron base plate. The equipment is finished in bright chrome plating and shore blue matalic painting to give it a corrosion resistant finish.
IS 1060 (Part 1) – 1966 : Methods of Sampling and Tests for Paper and Allied
Clause 7 : Thickness
Digital Brust Strength Tester is the tester used to measure the strength under multi-directional force.
The tearing strength of fabrics, papers, plastic films, or other similar materials in sheet form is determined by measurement of work done in tearing through a fixed length of the test specimen using the Elmendorf tear tester .
The Globe Elmendorf Tearing Tester consists of a brass sector pendulum pivoted on low-friction ball bearings over a vertical bracket fixed on a rigid metallic base. The test specimen, in shape of a rectangle, is held between two clamps, one of which is mounted on the pendulum and the other is mounted on the vertical bracket. The clamps are mounted in such a manner that their holding faces are aligned with each other when the pendulum is locked in its raised position. The pendulum is released by lifting a release lever. This action causes the pendulum to fall down under its weight and to tear the test specimen while doing so. The energy absorbed during tearing is indicated on a scale fitted on the pendulum by a low friction pointer pivoted on the axis of the pendulum.
Transport packages shall possess sufficient compression strength so that they do not get deformed or crushed when stacked one above the other, either during transit or in storage.
The compression strength of transport packages is determined by placing the package on a flat platform and pressing it down from top with the help of another flat plate, either by a motor or by manual arrangement.
The Globe Compression Strength Tester for transport packages is fabricated out of rigid mild steel sections and plates. The lower platen on which the box is kept for pressing is fixed on the frame of the tester. The package under test is placed over this platen and pressed down from top with the help of another platen. The upper platen is moved down by means of a screw arrangement. This platen is pivoted so that is can tilt to align its lower face with the top of the package, if the top and bottom faces of the package are not parallel. For conducting the edge and corner loading tests the upper platen can be held rigidly so that it does not tilt.
The load cell used for measurement of compressive force acting on the package under test is mounted above the upper platen. The load is indicated on a microprocessor based digital indicator. The load indicator has peak force memory to indicate the maximum load at which the package failed, and a relay with overload protection to stop the motor if the load exceeds the maximum capacity of the load cell.
The movement to the upper platen is given through a motor and gearbox arrangement. The distance moved by the upper platen is indicated on a separate digital display capable of measuring the distance to the nearest 1 mm. The equipment has over-travel protection arrangement to stop the motor at extreme limits of platen movement.