ISO 2062
Single-End Breaking Force and Elongation of Yarns

Downloads: ISO 2062 Pneumatic Yarn Grip – Universal Grip Data Sheet (PDF)

Written by Chris Thomas, Universal Grip Company · Reviewed by Frank Bertini · Updated October 24, 2026

ISO 2062 is the international standard for the single-end tensile test of textile yarns taken from packages. One end of yarn is clamped at a fixed gauge length under a small pretension and extended at a constant rate until it breaks, and the breaking force and elongation at break are recorded. The breaking force divided by the linear density gives the tenacity in cN/tex, the number that spinning mills, weavers, knitters, sewing-thread makers and technical-yarn producers compare against their specifications. The current edition is ISO 2062:2009, identical to EN ISO 2062:2009, and it is the ISO counterpart of ASTM D2256.

This guide covers what the 2009 edition changed and the revision now in committee draft; the four methods A, B, C and D and when each applies; the 500 mm gauge length at 500 mm/min and the 250 mm exception; the pretension rules with a table of pretension in centinewtons for common yarn counts; the sampling and specimen-count rules that most web pages get wrong; the slippage and jaw-break discard rules; the calculations with a worked example and the cN/tex, gf/den and N/tex conversions; the differences from ASTM D2256 with numbers; and the grips, load cells and testing machines Universal Grip supplies for the test, including our ISO 2062 pneumatic yarn grip.

In this guide: What ISO 2062 Measures and What It Excludes · Editions: 1993, 2009 and the Pending Revision · The Four Methods: A, B, C and D · Gauge Length, Rate and Machine Requirements · Pretension: 0.5 cN/tex and the Textured-Yarn Values · Sampling and Number of Specimens · Conditioning per ISO 139 · Clamps, Slippage and Jaw Breaks · Step-by-Step Procedure (Method A) · Calculations and a Worked Example · Common Errors and Their Size · ISO 2062 vs ASTM D2256 and the Skein Methods · Equipment for ISO 2062: Grips, Load Cells, Machines · FAQ

What ISO 2062 Measures and What It Excludes

ISO 2062 applies to yarns from packages (cones, bobbins, spools, cheeses) and, by agreement, to yarns taken from fabrics. It reports three properties:

• Breaking force: the maximum force recorded as the specimen is extended to rupture, in centinewtons or newtons.

• Elongation at break: the extension at the breaking force divided by the initial gauge length, as a percentage.

• Breaking tenacity: the breaking force divided by the linear density of the yarn in tex (measured per ISO 2060), in cN/tex.

The standard uses a constant-rate-of-extension (CRE) tester only. The 1972 and 1993 editions also allowed constant-rate-of-traverse (CRT) and constant-rate-of-load (CRL) machines with a 20 s time-to-break; the 2009 edition declares CRE the best tester type, moves CRT and CRL to an informative annex as obsolete, and fixes the rate at 100 % of the gauge length per minute. ISO 2062 does not report modulus, toughness or work to break; if those are required, ASTM D2256 defines initial modulus, chord modulus and breaking toughness.

Excluded yarns: glass fibre yarns (ISO 3341), elastomeric yarns, aramid, high-modulus polyethylene (HMPE and UHMPE), ceramic and carbon yarns, and polyolefin tapes. These break at forces or strains the standard's clamps and rates were not designed for; aramid and HMPE in particular need capstan grips and their own methods. Skein (lea) strength is a different test, ISO 6939, and the ISO fabric strip test is ISO 13934-1; our textiles testing page maps the family.

Editions: 1993, 2009 and the Pending Revision

• ISO 2062:1993, second edition, still allowed CRE, CRT and CRL machines and set the speed by a time to break of 20 ± 3 s. Many free PDFs online are this edition, which is why the 20 s rule is still quoted for ISO 2062.

• ISO 2062:2009, third edition and current, published December 2009: CRE only, rate 100 % of gauge length per minute (500 mm/min on 500 mm), four methods A to D, revised pretension table including textured yarns, and the sampling scheme described below. Adopted as EN ISO 2062:2009 and BS EN ISO 2062:2009.

• ISO/CD 2062, fourth edition, registered as a committee draft in May 2026 after the 2009 edition was marked 'to be revised'. Nothing has been published; cite 2009 until it appears and expect the CRE-only, 100 %/min framework to stay.

The Four Methods: A, B, C and D

ISO 2062 is one procedure with four variants that differ in how the specimen is prepared and whether the test is manual or automatic. The report must state which was used, and results from different methods are not interchangeable.

• Method A, manual, conditioned packages. The yarn is tested straight from the package after conditioning; the operator loads each specimen by hand. The routine laboratory method.

• Method B, automatic, conditioned packages. The same specimens on an automatic tester with a package changer. The standard recommends 2,000 mm/min or 5,000 mm/min (400 and 1,000 % of gauge length per minute) by agreement, which is what makes 100 to 200 breaks per package practical. Results differ from Method A because of the rate, so A and B results should not be mixed.

• Method C, manual, relaxed skeins. The yarn is reeled into skeins at least 100 mm longer than the gauge length (500 mm excess recommended), relaxed and conditioned overnight, then tested. Winding tension on a package stretches the yarn and depresses elongation; relaxing it first removes that history. Method C is the referee method when elongation at break is in dispute.

• Method D, manual, wet. Specimens are soaked for about 30 minutes and tested within 60 s of removal from the water at half the normal pretension. Used for yarns whose wet strength matters, such as sewing threads for laundered goods and viscose.

Lower rates of 50 % or 20 % of the gauge length per minute are allowed by agreement for very high-elongation yarns so the test does not outrun the machine's travel, and the lower rate must then be reported.

Gauge Length, Rate and Machine Requirements

• Gauge length 500 mm ± 2 mm, measured between the clamping points with the pretension applied. On a capstan or bollard grip the gauge length is the free yarn between the two points where the yarn leaves the drums.

• Rate of extension 500 mm/min ± 10 mm/min on the 500 mm gauge, which is 100 % of the gauge length per minute. The rate must be held to ± 2 %.

• 250 mm ± 1 mm at 250 mm/min ± 5 mm/min is permitted only when the tester cannot accommodate 500 mm or by agreement, for example for yarns with hundreds of percent elongation. It keeps the strain rate at 100 %/min, but elongation results on a 250 mm gauge are not comparable with 500 mm results on the same yarn because of clamp effects.

• Force accuracy: the indicated force must be within 2 % of the true force over the range used. A modern frame calibrated to ISO 7500-1 class 1 (± 1 %) satisfies this, but the class must hold at the low end of the cell: a 10 tex yarn breaking at 150 cN needs a 10 or 50 N cell, not the 1 kN cell that came with the machine.

• Data rate: at 500 mm/min a cotton yarn with 6 % elongation breaks 3.6 s after pretension; at 5,000 mm/min on an automatic tester it breaks in 0.36 s. Peak capture needs a sampling rate of at least 100 Hz for Method A and 1 kHz for Method B, or the breaking force is read low.

A 500 mm gauge plus the grip bodies needs about 700 to 800 mm of daylight between the crossheads before extension, and a 10 % yarn needs a further 50 mm of travel. That rules out most hand-held and short-column force testers; a benchtop universal testing machine with 1,000 mm of travel or a dedicated yarn tester is the normal platform.

Pretension: 0.5 cN/tex and the Textured-Yarn Values

The pretension straightens the yarn and defines the gauge length, so the standard fixes it per unit linear density rather than as a force. It is applied by a weight hung on the yarn, a spring in the lower clamp, or the machine's preload function, and the lower clamp is closed with the pretension acting.

• Conditioned specimens (Methods A, B, C): 0.5 ± 0.1 cN/tex.

• Wet specimens (Method D): 0.25 ± 0.05 cN/tex.

• Textured polyester and polyamide: 2.0 ± 0.2 cN/tex. Textured acetate, triacetate and viscose: 1.0 ± 0.1 cN/tex. Bi-shrinkage and jet-bulked textured yarns: 0.5 ± 0.05 cN/tex, except carpet yarns above 50 tex, which use the standard value.

• Untwisted multifilament: the standard recommends inserting 60 ± 1 turns/m for yarns finer than 2,200 dtex and 30 ± 1 turns/m for coarser yarns so the filaments share the load; the twist must be reported.

Pretension in centinewtons for the standard 0.5 cN/tex value, with the tolerance band:

• 10 tex (Ne 59): 5 cN, 4 to 6 cN.

• 20 tex (Ne 30): 10 cN, 8 to 12 cN.

• 30 tex (Ne 20): 15 cN, 12 to 18 cN.

• 50 tex (Ne 12): 25 cN, 20 to 30 cN.

• 100 tex (Ne 6): 50 cN, 40 to 60 cN.

• 300 tex: 150 cN, 120 to 180 cN.

• 1,000 tex (1 kg/km technical yarn): 500 cN, 400 to 600 cN.

Too little pretension leaves crimp and slack in the gauge, which reads as extra elongation; too much pre-strains the yarn and reads as less. A 20 tex yarn pretensioned at 20 cN instead of 10 cN is already at 1 cN/tex, about 7 % of its breaking tenacity, and its elongation at break will be a few tenths of a percent low.

Sampling and Number of Specimens

The specimen-count rules are where most online summaries go wrong. The standard works in two stages: how many cases or containers to open, then how many packages and specimens.

• Cases to sample: up to 3 in the lot, open 1; 4 to 10, open 2; 11 to 30, open 3; 31 to 75, open 4; 76 or more, open 5.

• For mean values only: take 10 packages at random and test at least 50 specimens for single spun yarns or at least 20 specimens for all other yarns (filament, plied, cabled), spread evenly across the packages. That is 5 or 2 breaks per package, not 20 per package.

• If the coefficient of variation is also required: take 20 packages and test at least 200 specimens for spun yarns or 100 for other yarns.

• If the CV is already known: the number of tests for ± 4 % precision at 90 % probability is n = 0.17 × CV². A ring-spun cotton yarn with CV 8 % needs 0.17 × 64 = 11 tests; an open-end yarn with CV 12 % needs 25; a filament yarn with CV 4 % needs 3, so the 20 minimum governs.

Specimens are taken from the package after discarding the outer layers, which carry handling damage and are often over-tensioned by the winder. Fancy yarns are tested with the first component to break recorded as the breaking force.

Conditioning per ISO 139

• Standard atmosphere: 20 ± 2 °C and 65 ± 4 % RH per ISO 139. The alternative atmospheres of 23 °C / 50 % and 27 °C / 65 % are permitted by agreement and must be reported.

• Preconditioning: at least 4 hours for Methods A to C; skeins for Method C overnight; tightly wound packages at least 48 hours, because the inner layers equilibrate slowly.

• Method D needs no conditioning; the specimen is soaked about 30 minutes in water (with a wetting agent if needed) and tested within 60 s of removal.

• Testing is done in the same atmosphere. Cotton, viscose and polyamide yarns change strength by several percent between 50 and 65 % RH, so a lab running ASTM D1776 at 21 °C / 65 % and ISO 139 at 20 °C / 65 % can share a room, but a 23 °C / 50 % plastics lab cannot run ISO 2062 to its standard atmosphere.

Clamps, Slippage and Jaw Breaks

ISO 2062 is more specific about clamps than most tensile standards, because clamp effects dominate yarn results. The default clamp is a flat-faced, unlined jaw that holds the yarn without slippage or damage. Any other type, lined jaws or capstan and bollard grips, may be used by agreement, and then all parties comparing results must use the same clamp type, gauge length and rate. Capstans are not required by the standard, whatever a grip catalogue implies; they are the agreed solution for yarns that cut or slip in flat jaws.

• Slippage greater than 2 mm during the test: discard the result. If it recurs, change the jaw lining or face type.

• Breaks within 5 mm of a jaw (jaw breaks): discard the result and record how many were discarded. Repeated jaw breaks mean the faces are too aggressive or the clamping pressure too high; move to flat or rubber-lined faces, reduce the air pressure, or go to a capstan.

• Flat steel faces suit most spun yarns and sewing threads. Rubber or leather-lined faces suit smooth filament yarns that slip on steel. Serrated faces suit coarse industrial yarns and twines and cause jaw breaks on fine yarns. Capstan or bollard grips wrap the yarn 270° around a drum so the clamped tail carries almost no load; they are the choice for high-tenacity filament, and the gauge length is measured between the drum tangent points.

The clamp also has to close with a repeatable force. Screw jaws depend on the operator; a pneumatic grip closes with the same force on every specimen, and at 50 to 200 breaks per sample that repeatability shows up directly in the coefficient of variation.

Step-by-Step Procedure (Method A)

• Condition packages at 20 °C / 65 % RH for at least 4 hours (48 hours if tightly wound). Determine the linear density per ISO 2060 on the same yarn.

• Set the gauge length to 500 mm, the rate to 500 mm/min, the force range so breaks fall in the calibrated part of the cell, and the pretension to 0.5 cN/tex × linear density (10 cN for a 20 tex yarn).

• Discard the outer layers of the package. Draw yarn off the package in the normal unwinding direction without pulling it through a tight guide.

• Clamp the yarn in the upper jaw, apply the pretension, let the yarn straighten, then close the lower jaw. Zero extension at this point; the gauge length is now 500 mm.

• Start the test and record force and extension continuously to rupture.

• Inspect the broken specimen. If it slipped more than 2 mm or broke within 5 mm of a jaw, discard the result and note it.

• Repeat across the 10 packages until 50 (spun) or 20 (other) valid results are in hand, or the n = 0.17 × CV² number if the CV is known.

• Calculate breaking force, elongation at break and tenacity; report means, CV where required, the method letter, gauge length, rate, pretension, clamp type, atmosphere, number of discards and any twist inserted.

Calculations and a Worked Example

• Breaking force F: the maximum force before rupture, reported as the mean to three significant figures in cN (or N for technical yarns).

• Elongation at break: ε = ΔL / L0 × 100, where ΔL is the extension at breaking force measured from the pretensioned zero and L0 is the gauge length; mean to two significant figures in %.

• Breaking tenacity: T = F / linear density, in cN/tex, reported to 0.1 cN/tex. Linear density to three significant figures in tex per ISO 2060.

• Coefficient of variation: standard deviation over mean, to 0.1 %.

Worked example: a 20.0 tex ring-spun cotton yarn, Method A, 500 mm gauge, 500 mm/min, pretension 10 cN. One specimen gives a breaking force of 300 cN at an extension of 30.0 mm. Tenacity = 300 / 20.0 = 15.0 cN/tex. Elongation at break = 30.0 / 500 × 100 = 6.0 %. The break occurred 3.6 s after the start (30 mm at 500 mm/min), which is why the data rate matters. Fifty results averaging 295 cN with a standard deviation of 24 cN give a CV of 8.1 %, so n = 0.17 × 8.1² = 11 tests would have been enough for ± 4 % on the mean; the 50-specimen minimum still applies for a spun yarn.

Unit conversions: 1 cN/tex = 1.02 gf/tex = 0.113 gf/den = 10 mN/tex = 0.01 N/tex; 1 gf/den = 8.83 cN/tex. A 15 cN/tex cotton yarn is 1.7 gf/den; a 70 cN/tex polyester industrial yarn is 7.9 gf/den; aramid at 200 cN/tex (22.6 gf/den) is outside the scope. Linear density: tex = 590.5 / Ne for cotton count, tex = dtex / 10, tex = denier / 9.

Common Errors and Their Size

• Running a 20 s time-to-break. That is ASTM D2256 and the pre-2009 ISO text. ISO 2062:2009 fixes 100 %/min; a yarn with 25 % elongation at 20 s time-to-break would be running at 75 %/min, and strength rises about 1 to 2 % per doubling of rate, so the error is small but the result is not ISO 2062.

• Twenty specimens per package. The rule is 10 packages and 20 specimens in total for filament and plied yarns, 50 for spun. Testing 200 breaks is not wrong, but reporting 10 as compliant is.

• Pretension as a fixed weight. A 10 cN weight is correct for 20 tex and 0.2 cN/tex for a 50 tex yarn, which leaves slack and inflates elongation by a few tenths of a percent.

• Counting jaw breaks. Breaks within 5 mm of a jaw are typically 5 to 15 % below mid-gauge breaks; leaving them in the mean lowers tenacity and raises the CV.

• Wrong load cell. A 1 kN cell reading a 150 cN break is working at 0.15 % of range; its ± 1 % class is only guaranteed above 1 or 2 % of range, so the 2 % force rule is not met.

• Testing at 23 °C / 50 %. Cotton loses about 5 to 8 % of its breaking force going from 65 to 50 % RH and viscose more; the atmosphere must be ISO 139 standard or reported as an alternative.

• Taking yarn through the package core or a tight tensioner. Any added tension before the clamps pre-strains the yarn; unwind over the end or from a creel with a free guide.

• Gauge length on a capstan measured drum centre to drum centre. The gauge is the free yarn between tangent points; a 50 mm drum adds 25 mm per grip, 10 % of a 500 mm gauge, if measured wrongly.

ISO 2062 vs ASTM D2256 and the Skein Methods

ASTM D2256 is the single-strand method used in North America and the two are often quoted as equivalent. They measure the same properties on different gauge lengths at different rates, and neither standard says results are interchangeable.

• Tester: ISO 2062 CRE only; D2256 prefers CRE and permits CRT and CRL.

• Gauge length: ISO 500 mm (250 mm by exception); ASTM 250 mm (10 in).

• Rate: ISO 500 mm/min on 500 mm (100 %/min); ASTM set for a time to break of 20 ± 3 s, or 300 ± 10 mm/min on 250 mm (120 %/min) by agreement. On a 6 % cotton yarn the ASTM time rule gives about 45 mm/min, a fifth of the ISO strain rate.

• Pretension: both 0.5 cN/tex; D2256 excludes yarns that stretch more than 5 % between 0.05 and 1.0 cN/tex.

• Properties: ISO breaking force, elongation, tenacity; ASTM adds initial modulus, chord modulus and breaking toughness, plus knotted and looped variants.

• Conditioning: ISO 139 20 ± 2 °C / 65 ± 4 %; ASTM D1776 21 ± 1 °C / 65 ± 2 %.

• Specimens: ISO 50 spun / 20 other across 10 packages; ASTM sets its count by the required precision and the yarn's CV, with a similar statistical formula.

• Elongation effect of gauge length: a 500 mm gauge dilutes clamp-zone strain, so ISO elongation at break on the same yarn is usually a few tenths of a percent lower than the 250 mm ASTM value.

Skein (lea) strength per ISO 6939 or ASTM D1578 breaks a wrapped skein of 100 or 120 turns and reports count-strength product rather than single-end tenacity; it is faster per sample but tells nothing about elongation or the weakest places in the yarn. Film tapes are tested as strips under ISO 527-3, fabrics under ISO 13934-1.

Equipment for ISO 2062: Grips, Load Cells, Machines

Universal Grip ISO 2062 pneumatic yarn grip

Our ISO 2062 pneumatic grip (part UGC-ISO2062-PG) is a double-acting pneumatic grip for single-end yarn testing. Opposed air cylinders close both jaws simultaneously so the yarn stays on the load axis, and a toggle valve or foot switch gives fast, repeatable clamping with the same force on every specimen through a 50- or 200-break session. Specifications from the data sheet: 1 kN standard capacity with higher capacities on request; aluminium body with steel jaw faces; interchangeable serrated, flat or rubber-lined faces; double-acting pneumatic actuation at typically up to 6 to 8 bar; open U-frame for easy threading; pin or threaded adapter to suit your frame. Order with the yarn type and count range, the jaw face type, your available air pressure and the machine connection. Flat faces are the standard's default unlined jaw; rubber-lined faces are the agreed lined option for slippery filament; serrated faces are for coarse industrial yarn and twine. The pneumatic grips page covers the general range and air supply.

Other grips for yarns

• Bollard and capstan grips: 270° wrap drums for high-tenacity filament, sewing threads that cut in flat jaws, and yarns outside the ISO 2062 scope such as aramid; measure the 500 mm gauge between tangent points and report the clamp type.

• Wrap grips: ribbon-style wrap for tapes and narrow fabrics tested by agreement under the yarn method.

• Vise and screw grips: acceptable for Method A at low throughput; clamping force varies with the operator, so expect a higher CV than with pneumatic closure.

Load cells and machines

• Load cell: choose so breaks fall between 10 and 90 % of range: 10 N for sewing threads and fine filament (50 to 500 cN), 50 or 100 N for spun and industrial yarns, 500 N or 1 kN for cords and technical yarns above 300 tex. The 1 kN grip capacity covers the whole range.

• Machines: a 2.5 kN benchtop universal testing machine with 1,000 mm travel, interchangeable low-force cells and a 500 to 5,000 mm/min speed range covers Methods A and D and manual Method B rates; Mark-10 tensile testers with a tall column suit a QC bench running the 250 mm gauge by agreement.

• Conditioning: an environmental chamber with humidity control holds 20 °C / 65 % at the specimen when the lab cannot; otherwise test in the ISO 139 room.

• Software: peak capture at 1 kHz, automatic discard flags for slip and jaw breaks, and a tenacity calculation from the entered linear density.

ISO 2062 FAQ

What is ISO 2062?

ISO 2062 is the international standard for determining the single-end breaking force and elongation at break of yarns taken from packages on a constant-rate-of-extension tester. The current edition is ISO 2062:2009; a fourth edition is in committee draft since 2026. It reports breaking force, elongation at break and tenacity in cN/tex.

What gauge length and speed does ISO 2062 use?

500 mm ± 2 mm at 500 mm/min ± 10 mm/min, which is 100 % of the gauge length per minute. A 250 mm gauge at 250 mm/min is allowed only when the machine cannot take 500 mm or by agreement. Automatic Method B testers may run 2,000 or 5,000 mm/min by agreement.

Does ISO 2062 use a 20 second time to break?

No. The 20 ± 3 s time to break belongs to ASTM D2256 and to the pre-2009 editions of ISO 2062. Since 2009 the rate is fixed at 100 % of gauge length per minute on a CRE tester; CRT and CRL testers are obsolete under the current edition.

What pretension does ISO 2062 require?

0.5 ± 0.1 cN/tex for conditioned specimens, 0.25 ± 0.05 cN/tex wet, 2.0 cN/tex for textured polyester and polyamide, 1.0 cN/tex for textured acetate and viscose, and 0.5 ± 0.05 cN/tex for bi-shrinkage and jet-bulked yarns. For a 20 tex yarn the standard pretension is 10 cN.

How many specimens does ISO 2062 need?

For mean values, 10 packages and at least 50 specimens for single spun yarns or 20 for other yarns in total, spread across the packages. For a coefficient of variation as well, 20 packages and 200 or 100 specimens. If the CV is known, n = 0.17 × CV² gives ± 4 % precision at 90 % probability.

Which results must be discarded under ISO 2062?

Any specimen that slips more than 2 mm in the jaws, and any that breaks within 5 mm of a jaw. Both are discarded and the number of discards is reported. Repeated slips call for lined faces or a capstan; repeated jaw breaks call for gentler faces or lower clamping pressure.

Does ISO 2062 require capstan grips?

No. The default clamp is a flat-faced, unlined jaw. Lined jaws and capstan or bollard grips may be used by agreement, in which case everyone comparing results must use the same clamp type, gauge length and rate. Capstans are the usual solution for high-tenacity filament that slips or cuts in flat jaws.

What are Methods A, B, C and D in ISO 2062?

A is manual testing of conditioned yarn from the package; B is automatic testing, typically at 2,000 or 5,000 mm/min; C tests relaxed skeins after conditioning and is the referee method for elongation disputes; D tests wet specimens within 60 s of removal from water at 0.25 cN/tex pretension.

How is tenacity calculated in ISO 2062?

Tenacity in cN/tex = breaking force in cN divided by linear density in tex measured per ISO 2060. A 20 tex yarn breaking at 300 cN has a tenacity of 15.0 cN/tex, which is 1.7 gf/den (1 cN/tex = 0.113 gf/den). Breaking force is reported to three significant figures and elongation to two.

What conditioning does ISO 2062 specify?

The ISO 139 standard atmosphere of 20 ± 2 °C and 65 ± 4 % RH, with at least 4 hours of preconditioning for Methods A to C, overnight for Method C skeins and at least 48 hours for tightly wound packages. The 23 °C / 50 % and 27 °C / 65 % alternatives are allowed by agreement and must be reported.

How does ISO 2062 differ from ASTM D2256?

ISO uses a 500 mm gauge at 500 mm/min on a CRE tester only; ASTM D2256 uses 250 mm with the speed set for a 20 ± 3 s break (or 300 mm/min by agreement) and also reports modulus and toughness. Conditioning is ISO 139 20 °C / 65 % versus ASTM D1776 21 °C / 65 %. Results are not interchangeable.

Which grips and load cell do I need for ISO 2062?

A pneumatic grip with flat, rubber-lined or serrated faces and 1 kN capacity covers almost all yarns; capstan grips are for high-tenacity filament by agreement. Pick the load cell so breaks fall between 10 and 90 % of range: 10 N for fine threads, 50 to 100 N for spun and industrial yarns, 500 N to 1 kN for cords. The machine needs about 800 mm of daylight for the 500 mm gauge.

Need pneumatic yarn grips, capstan grips or a complete CRE system for ISO 2062? Contact Universal Grip with your yarn type and count range, expected breaking force and machine connection and we will quote the right setup.