Quick answer. Before choosing any of the sixteen instruments coded LTE-0001 to LTE-0016, settle who cuts specimens, from where on the hide, and how that is recorded. Leather is not uniform: thickness, fibre structure, stretch and strength vary from the firm butt through the flanks to the loose belly and neck, so a result reported without its sampling position and cutting direction cannot be reproduced. That means press dies rather than scissors, specimens from matched positions when comparing two leathers, and a thickness gauge whose presser foot and pressure match your standard. Then choose instruments for the failure modes your customers specify.
Sixteen instruments, coded LTE-0001 to LTE-0016, for a tannery or leather testing laboratory. They cover the four things that decide whether a leather is fit for its purpose: how the finish survives flexing - a flexometer, a crackness tester and a folding tester; how the leather behaves with water - a spray tester, a waterproofness tester, a dynamic waterproofness tester and two water vapour permeability instruments; how the surface wears - two abrasion testers, one specifically for sole leather, a crockmeter for rub fastness and a finish film adhesion tester; and the properties that have to be measured before any of the rest means anything - a bench thickness gauge, a Lasto-meter for grain distension and a light fastness tester.
Leather differs from every other material in this part of the catalogue in one way that governs the whole laboratory: it is not uniform. Thickness, fibre structure, stretch and strength all vary across a hide, from the firm butt through the flanks to the loose belly and neck. The test standards therefore specify where on the hide a specimen is taken from and in which direction it is cut, and a result reported without a stated sampling position is not reproducible - not by your customer, and not by you next month. Before buying an instrument, settle who cuts specimens, from where, and how that is recorded.
Three practical consequences follow from that, and they are worth more than any single instrument specification.
| Consequence | What to do about it |
|---|---|
| Position and direction must be recorded with every result | Use the sampling diagram in the standard you work to; record butt, flank, belly or neck and the cutting direction on the worksheet, not in someone memory |
| Specimens must be cut accurately and identically | Press dies rather than scissors. Ask us which dies each test needs, what they cost and what the resharpening arrangement is - a blunt die rounds an edge and a rounded edge changes a tear or tensile result |
| Comparisons need specimens from matched positions | When comparing two leathers or two processes, take specimens from the same position on each hide. Otherwise you are measuring the hide, not the process |
The same logic applies to the thickness gauge, LTE-0011, which looks like the simplest instrument here and is not. Leather is compressible, so a thickness reading depends on how hard the gauge presses and over what area. The standards specify a presser foot diameter and an applied pressure for exactly that reason. Ask what foot and what pressure the gauge applies, and whether both match your standard; a general-purpose dial gauge will give readings that are precise, repeatable and not comparable with anyone else.
Finished leather rarely fails by breaking. It fails because the finish cracks where the material folds - across the vamp of a shoe, at the fold of an upholstery panel, along the crease of a bag. Three instruments address that, and the questions are the same for all three: how many flexes the test specifies and whether the counter stops automatically; at what temperature, because a finish that is sound at room temperature can crack at low temperature and the standard may specify a cold test; how the specimen is clamped, since a clamp that grips the finish damages it before the test starts; and how cracking is assessed afterwards - under what magnification and against what scale.
The Lasto-meter, LTE-0005, belongs with them in spirit even though it does not flex. It presses a ball into the grain side of upper leather and records the load and the distension at which the grain cracks - which is, in effect, a laboratory prediction of what will happen when that leather is pulled over a last in a shoe factory. For anyone supplying shoe uppers it is the single most relevant instrument in the range, and it is worth asking whether the result is read as load, as distension or as both, and what specimen size and clamping ring the standard requires. Footwear-specific instruments are listed under footwear testing equipment.
Four instruments here deal with water, and they answer two separate questions that together define comfort in a shoe or a glove.
Does liquid water get in? That is the spray tester and the two waterproofness instruments. Note the word dynamic on LTE-0012: a static test holds leather against water and waits, while a dynamic test flexes the leather while it is wet, which is what a shoe actually experiences and is much the harsher test. If your customer specifies dynamic waterproofness, a static instrument will not satisfy them. Ask what water head or immersion the test applies, how penetration is detected and how many specimens can run at once.
Does water vapour get out? That is water vapour permeability, and it is why leather is used at all in place of a sealed synthetic. Two records in this listing cover it - LTE-0003 and LTE-0015 - with nothing in the listing to separate them, so ask which method each implements before choosing: the cup methods and the dish methods are not interchangeable and give different numbers for the same leather. Ask also what conditioning and what air movement the method requires, because both change the answer.
The crockmeter, LTE-0007, measures rub fastness dry and wet, and its consumable is the specified crocking cloth; the result is a rating against grey scales rather than a number, so the assessment needs controlled light and a trained observer in the same way fabric colour work does. Ask what the cloth costs, how many rubs the method specifies and whether wet rubbing is included.
The finish film adhesion tester asks whether the finish stays on the leather - a failure mode that shows up as peeling at a seam or an edge. Ask how the adhesive bond to the test strip is made, since that is where the method is fiddly and where results scatter.
The light fastness tester, LTE-0016, raises the same questions as any artificial-light exposure instrument: what the source is, what filters are fitted, how lamp hours are logged and what a lamp and filter set costs, and whether the method uses blue wool references so that the rating is anchored to something external. A light fastness result produced without reference standards is a comparison with nothing.
Two abrasion instruments are listed, one for sole leather and one general. Ask which abradant and which standard each follows, what the specimen size is, and what the consumable abradant costs per test - as with textiles, the running cost of an abrasion test is the abradant, not the machine.
LTE-0010 is listed only as "Auxiliary Apparatus", which tells you nothing, and we would rather say so than let you order it blind: ask us exactly what it contains and for which test, and have the contents listed on the proforma invoice. There are also two pairs of records with near-identical names - two water vapour permeability instruments and two waterproofness testers - and one record called "Crackness Tester Apparatus", where the test is crack resistance of the finish. In every case, quote the code and the full product name together and ask for the test method and specimen size to be confirmed in writing. If a name looks wrong or incomplete, ask; it is more likely to be our catalogue data than your reading of it.
The standard and version each instrument is built to, named explicitly; the test method where several exist, especially for water vapour permeability; specimen size, cutting die and clamping arrangement; presser foot diameter and pressure for the thickness gauge; temperature capability for the flexing instruments; number of specimens or stations per run; reference materials each test needs - grey scales, blue wool references, crocking cloth, standard abradant - with prices and local availability; calibration certificate, traceability and recalibration interval; services required at the position, including water and drainage; nominal voltage, frequency and plug pattern; and the warranty, commissioning and local service position. For any certification stated here, contact us for the latest copies of the relevant certificates before you rely on it in a tender or an accreditation file.
Related ranges: footwear testing equipment, fabric testing equipment, coated fabric testing equipment, rubber testing equipment for soling materials, and universal testing machines for tensile and tear strength. The full set is listed under raw products testing. For a quotation, tell us the destination country, the standards your customers name, whether the leather is for footwear, upholstery or leather goods, and your expected sample throughput.
Because the hide varies. Thickness, fibre structure, stretch and strength change from the butt through the flanks to the belly and neck, which is why the standards specify where on the hide a specimen is taken and in which direction it is cut. Record butt, flank, belly or neck and the cutting direction on the worksheet with every result, cut specimens with press dies rather than scissors, and when comparing two leathers or two processes take specimens from the same position on each hide - otherwise you are measuring the hide, not the process.
The presser foot diameter and the applied pressure. Leather is compressible, so a thickness reading depends on how hard the gauge presses and over what area, and the standards specify both for exactly that reason. Ask what foot and what pressure LTE-0011 applies and whether both match the standard you work to. A general-purpose dial gauge will give readings that are precise and repeatable but not comparable with anyone else's - which defeats the point when thickness is a measurement that so many other results depend on.
The Lasto-meter, LTE-0005. It presses a ball into the grain side of upper leather and records the load and the distension at which the grain cracks - in effect a laboratory prediction of what happens when the leather is pulled over a last in a shoe factory. Ask whether the result is read as load, as distension or both, and what specimen size and clamping ring your standard requires. For the flexing instruments beside it, ask the number of flexes and automatic stop, the test temperature - a finish sound at room temperature can crack in the cold - the clamping, and how cracking is assessed.
A static test holds leather against water and waits; a dynamic test flexes the leather while it is wet, which is what a shoe actually experiences and is much the harsher test. LTE-0012 is the dynamic instrument, and if your customer specifies dynamic waterproofness, a static instrument will not satisfy them. For the spray tester and both waterproofness instruments, ask what water head or immersion the test applies, how penetration is detected and how many specimens can run at once. Liquid water getting in and water vapour getting out are separate questions, answered by separate instruments.
Nothing in the listing separates the two records, so ask which method each implements before choosing. The cup methods and the dish methods are not interchangeable and give different numbers for the same leather, so the right instrument is the one that matches the method your customer names. Ask also what conditioning and what air movement the method requires, because both change the answer. Water vapour permeability is the property that explains why leather is used at all in place of a sealed synthetic, so it is worth getting the method right before the order.
The crockmeter, LTE-0007, uses the specified crocking cloth and gives a rating against grey scales, so assessment needs controlled light and a trained observer; ask how many rubs the method specifies and whether wet rubbing is included. The light fastness tester, LTE-0016, needs lamp hours logged, a lamp and filter set, and blue wool references - a light fastness result without reference standards is a comparison with nothing. For the two abrasion testers, one for sole leather, ask which abradant and standard each follows: the running cost of an abrasion test is the abradant, not the machine.
Ray Export is a manufacturer and exporter of laboratory, scientific and educational equipment based at Plot No. 449, HSIIDC Industrial Area, Saha, Ambala, Haryana 133104, India. Enquiries: [email protected], +91-9817319615.
Written by Palak Mall, Senior Content Writer. Technically reviewed by Arvind Kumar, Lab Equipment Specialist, 12+ years in laboratory and testing instrumentation. Last updated: 17 October 2026.
Specifications - test method and standard version, specimen size, cutting die, clamping, presser foot and pressure, temperature capability and stations per run - are confirmed in writing on the quotation. For calibration certificates, standards or approvals, contact us for the latest copies of the relevant certificates. No price is quoted on this page. Listing notes: LTE-0010 is named only Auxiliary Apparatus and does not say what it contains; two water vapour permeability records (LTE-0003, LTE-0015) and two waterproofness records have near-identical names with nothing to separate them; and one record is called Crackness Tester Apparatus where the test is crack resistance of the finish.
Flexometer is utilized for the appraisal of the flexing perseverance of light calfskins and their surface completions. The capacity of light cowhides, for example, those utilized as a part of shoe uppers, gloves and pieces of clothing to with stand rehashed flexing without splitting can be precisely decided with Flexometer. This testing hardware is based on an inflexible metallic base plate. The test example is held between a couple of stationary and wavering grasps. The holds are uniquely intended to empower snappy settling and evacuation of test example and are molded to meet the particulars.
A six digit even electronic counter with key reset and reinforcement memory is given to tally the aggregate number of flexing cycles experienced by the test examples. The hardware can do number of flex cycles per test.
Highlights
All the turn purposes of the device have metal roller to guarantee the long life and smooth task
The mechanical assembly is done in brilliant chrome/zinc plating and NC based painting for an erosion obstruction wrap up
Electronic counter with key reset and reinforcement memory to check the aggregate number of flexing cycles
Crackness Apparatus comprises of a brace gadget, which unbendingly holds one end of the test piece. A mandrel of the coveted distance across and a roller of breadth 25mm reach the fragile living creature and the grain surface separately of the center segment of the test piece,across its full width. The tomahawks of both the mandrel is settled in respect to the cinch, the axel of the roller is joined to a handle rotated at the pivot of the mandrel. It comprises of an even base plate to which is inflexibly connected a carried nozzle whose restricted part has the distance across of the littlest mandrel. The roundabout gap in the handle fits over, which in this manner goes about as a rotate. A mandrel of the coveted distance across fits. A roller of width 25mm is carried on a vertical axel settled to the handle such that its separation from the round gap might be set at any esteem wanted. The test piece cinch is joined to an opened strip, which enables its position with respect to the base plate to be shifted. Every one of the mandrels are made of treated steel and alternate parts are either painted or chrome platted to give an erosion opposition long life.
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Water Vapor Permeability Tester made of twelve metal jugs. It gauges water vapor penetrability of cowhide. The containers have nut of round opening. The jugs are mounted on the jugs holders which pivot at indicated insurgency every moment with the assistance of engine pulley and belts. The pivot of the jugs is parallel to the hub of the jugs holders. A fan mounted before the mouths of the containers and comprising of three sharp edges in planes that is slanted at 120º to each other. The planes of the sharp edges go through the prolongation of the pivot of the wheel. A pre set Digital clock is mounted for setting complete no. of long stretches of instrument development. Every one of the segments are chrome/Zinc Plating and Painting for consumption opposition long life.
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Splash Tester comprises of a remain for holding the shower gadget the catch partition have an example holder at 45° whose inside lie at the middle line of the shower gadget. splash gadget made of glass (or plastic) research center channel which is associated with the shower spout by elastic tube.
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The goal of this test is to determine whether the upper utilized as a part of the footwear is frail or has variable stretch properties .In both these cases, the upper may break under the impact of foot weight and flexing under conditions wear.
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Complete Film Adhesion Tester made test example plates on which the test example is glue. There are an arrangement of Pressing Jig on which the test example plates are mount. An arrangement of stacking weight supply with the instrument. Made on the threw base plate. On which the supporting stage with stacking handle is mounted. At the point when press the stacking handle the supporting stage will lift. The test example gluing strip with test example mounted on the opening of the instrument and tight with the assistance of the fixing jolts. Opened weights with holder are additionally provided with the instrument for applying the power on the test example is trying.
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One of the test for assurance of shading quickness of colored of printed calfskin is the crocking test. This test is utilized for the assurance of shading speed against rubbing, either under dry or wet condition. In this test a moving metal finger of determined shape and size rubs against the test examples under a settled load. The measure of shading lost by the test example and the measure of shading exchanged to a bit of abradant Leather settled over the base of the moving finger are reviewed with the assistance of standard dark scales to assess the shading speed of the example under test rubbing.
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Scraped spot Tester (For Sole Leather) - We offer scraped area analyzer for sole cowhide, which is utilized to test the quality of calfskin sole Civil lab types of gear producers.
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Scraped area Tester - The protection from Abrasion Tester of sole calfskin might be resolved with the assistance of a drum compose abrader (like NBS abrader). In this test, a rough fabric portion of a predetermined coarseness is settled over the circuit of a drum, which is pivoted at a predefined speed. The test example, fit as a fiddle of a rectangular strip, is hung on a metallic bar situated over the drum with the end goal that its more drawn out hub is opposite to the pivot of the drum. At the point when the metallic bar is squeezed against the drum, the test example gets rubbed. The quantity of unrests expected to create a profundity of scraped spot of 2. 5 mm is resolved and contrasted against that required with deliver a profundity of scraped spot of 2. 5 mm in a standard elastic compound to acquire the rough record of the calfskin test under test. common lab types of gear makers. Calfskin Testing Lab gear manufacturers,exporters and Leather Testing Lab providers
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Helper Apparatus - Penetration through most upper cowhides would be moderate on the off chance that they were simply put into contact with water without flexing, and the rate of entrance of most calfskins might be extraordinarily quickened by expanding the seriousness of the flexing (for instance, by expanding the sufficiency of the wrench movement on the test machine). Experience demonstrates that if a wide range of upper cowhide are flexed to a similar degree when tried on the machine, the water proofness of thick calfskins in genuine wear will be under evaluated, and that of thin cowhides over assessed. Consequently, the machine is constructed to the point that any of four amplitudes might be decided for specific tests. and The Auxiliary Apparatus is utilized for choosing whether a specific cowhide or gathering of calfskins ought to be flexed with 5, 7.5, 10 or 15% adequacy common lab types of gear producers. Cowhide Testing Lab hardware manufacturers,exporters and Leather Testing Lab providers
Contact Ray Export for your School, College Civil and Mechanical Engineering Lab Instruments. We are the best engineering lab equipments, engineering equipment manufacturer india, engineering equipment india, chemical engineering lab equipments, control engineering laboratory equipments, control engineering laboratory equipment, control engineering lab equipment in Ambala, India.
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