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Polyester 12-Strand

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SECURE SCREEN

Secure Screen is a retractable garage door screen which can also be adapted to many other uses such as porches, barns and many commercial applications.

Click here for more information

 
SPLICING

Splicing Instructions

Rope splicing is a very strong method of fixing a loop eye or joining two ends together; as the rope is pulled tighter, the spliced strands become more and more squeezed and locked into place.

Splicing Index

 

MANILA ROPE

Add that decorative touch to your house, deck or yard with Manila 3-strand rope.

Click HERE for more information.

 


POLYESTER 12-STRAND

A braided 12-strand, single-end-per-carrier polyester. This product is made from a variety of polyester fibers sourced from all over the globe, and is treated with a spliceable urethane coating, which is applied after the rope is braided. This coating firms the rope, increases snag resistance, improves abrasion resistance, and helps keep contaminants from entering the rope.  Polyester 12-braid is easy to splice and repair if damaged in service. Available in several brilliant colors for rapid line identification and to track time in service, polyester 12-braid comes in unlimited lengths.

Specific gravity: 1.38

Sold in 600' rolls
Due to freight costs, call for pricing over 1"

Standard color is orange, call for availability of other colors.

Dia.
Inch

Average
Break
Strength
Pounds

Minimum
Break
Strength
Pounds

Max
Working
Load
5:1

Weight
Pounds
Per 600'

5/16" 3,600 3,060 720 17.4
3/8" 5,400 4,590 1,080 23.4
7/16" 8,100 6,885 1,620 35.4
1/2" 11,250 9,562 2,250 51.0
9/16" 14,850 12,622 2,970 63.0
5/8" 16,380 13,923 3,276 70.8
3/4" 21,600 18,360 4,320 94.8
7/8"* 31,950 27,158 6,390 141.6
1"* 38,700 32,895 7,740 171.0
*Two-end-per-carrier construction

A braided 12-strand rope constructed of Performance Fiber's type 1W81 high tenacity polyester. This product is treated with a spliceable urethane coating, which is applied after the rope is braided. This coating firms the rope, increases snag resistance, improves abrasion resistance, and helps keep contaminants from entering the rope.  Polyester 12-braid is easy to splice and repair if damaged in service. The two-end-per-carrier construction creates a larger void in the middle of the rope, making used rope splicing easier, or production splicing for sling making faster.

Standard color is orange, call for availability of other colors.

Dia.
Inch

Average
Break
Strength
Pounds

Minimum
Break
Strength
Pounds

Max
Working
Load
5:1

Weight
Pounds
Per 600'

1/4" 2,500 2,250 500 13.2
5/16" 4,000 3,600 800 16.8
3/8" 6,000 5,400 1,200 24.0
7/16" 9,000 8,100 1,800 42.6
1/2" 12,500 11,250 2,200 54.0
9/16" 16,500 14,850 3,300 67.2
5/8" 18,200 16,380 3,640 76.2
3/4" 24,000 21,600 4,800 102.0
7/8" 35,500 31,950 7,100 153.6
1" 43,000 38,700 8,600 193.8
1-1/8" 56,000 50,400 11,200 209.4
1-1/4" 65,500 58,950 13,100 235.8
1-5/16" 74,750 67,275 14,950 279.6
1-1/2" 93,500 84,150 18,700 340.8
1-5/8" 112,500 101,250 22,500 432.6
 
Single braid polyester with orange Maxijacket coating from www.machovec.com Orange Single braid polyester with black Maxijacket coating from www.machovec.com Black
Single braid polyester with yellow Maxijacket coating from www.machovec.com Yellow Single braid polyester with red Maxijacket coating from www.machovec.com Red
Single braid polyester with blue Maxijacket coating from www.machovec.com Blue Single braid polyester with green Maxijacket coating from www.machovec.com Green

APPLICATIONS

TENSILE STRENGTHS: are determined from tests on new, unused rope in accordance with standard test methods of the Cordage Institute.

CAUTION: USE OF WORKING LOADS

Because of the wide range of rope use, rope condition, exposure to the several factors affecting rope behavior, and the degree of risk to life and property involved, it is impossible to make blanket recommendations as to working loads. However, to provide guidelines, working loads are tabulated for rope in good condition with appropriate splices, in non-critical applications and under normal service conditions.

The Cordage Institute Formula for working load is:

Working Load = Minimum Breaking Strength/Safety Factor

A higher working load may be selected only with expert knowledge of conditions and professional estimate of risk. Also, if the rope has not been subject to dynamic loading or other excessive use, has been inspected and found to be in good condition, is to be used in the recommended manner; if the application does not involve elevated temperatures, extended periods under load, or obvious dynamic loading (see explanation below) such as sudden drops, snubs or pickups. For all such applications and for applications involving more severe exposure conditions, or for recommendations on special applications, call Jay at 612-282-4035.

**Many uses of rope involve serious risk of injury to personnel or damage to valuable property. This danger is often obvious, as when a heavy load is supported above one or more workmen. An equally dangerous situation occurs if personnel are in line with a rope under tension. Should the rope fail, it may recoil with considerable force. Persons should be warned against the serious danger of standing in line with any rope under tension. IN ALL CASES WHERE SUCH RISKS ARE PRESENT, THERE IS ANY QUESTION ABOUT THE LOADS INVOLVED OR QUESTIONS ABOUT THE CONDITIONS OF USE, THE WORKING LOAD SHOULD BE SUBSTANTIALLY REDUCED AND THE ROPE PROPERLY INSPECTED.

DYNAMIC LOADING VOIDS NORMAL WORKING LOADS

Normal working loads are not applicable when the rope is subject to significant dynamic loading. Whenever a load is picked up, stopped, moved or swung there is an increased force due to dynamic loading. The more rapidly or suddenly such actions occur, the greater the increase will be. In extreme cases, the force put on the rope may be two, three or even more times the normal involved. Examples could be picking up a tow on a slack line or using a rope to stop a falling object. Therefore, in all such applications such as towing lines, lifelines, safety lines, climbing ropes, etc. working loads as given DO NOT APPLY.

Users should be aware that dynamic effects are greater on a low elongation rope such as polyester than on a high elongation rope such as nylon, and greater on a shorter rope than on a longer one. The working load ratios listed contain provision for very modest dynamic loads. This means, however, that when this working load has been used to select a rope, the load must be handled slowly and smoothly to minimize dynamic effects and avoid exceeding the provision for them.

EFFECT OF TEMPERATURE ON TENSILE STRENGTH

The tensile strength charts apply to ropes tested at normal room temperature (70F). Ropes have lower tensile strengths at higher temperatures. 30F (or more) lower at the boiling point of water (212F) and continuing on down to zero strengths for nylon and polyester at 490F and 300F for polypropylene.

Also, continued exposure at elevated temperatures causes permanent damage. TENSILE STRENGTHS shown are average based on new ropes tested under laboratory conditions, minimum can vary by 10%.

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