Engineering Fitness Equipment with Rope that Won't Fray, Loosen, or Break

Workout routines such as Pilates have more in common with sailing than you may initially think.

Both must be designed with components that are load rated for maximum performance and easy for the end user to operate smoothly. The ropes used in pilates have to be especially durable in order to withstand repetitive motions and frequent use.

Products manufactured for both the sailing and exercise industries are designed for longevity, and longevity depends largely on the materials of the rope itself. Some ropes will fray or break under the strain of being repeatedly pulled and eased. Polyester braids and high-wear technora lines hold up the best under loads in these conditions.

The ideal solution is a high-tech load-bearing core protected by a woven cover, such as the ropes produced by Dyneema.

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Dyneema Ocean 5000

Dyneema Ocean 5000 rope is pre-stretched, meaning that it won’t loosen even with the most rigorous and repetitive of uses. It is also heat set, helping it provide a huge increase in breaking strength even in extreme circumstances.

This single braid synthetic rope is lighter and stronger than steel, making it an efficient and safe alternative to cable and wire ropes. It is dark grey in color and comes in 656ft spools. The following chart shows the breaking load of Dyneema Ocean 5000 synthetic rope as compared to grade 316 stainless steel wire a comparable diameter:

Product Number

Rope Diameter (mm)

Dyneema Breaking Load (lbs)

Stainless Steel Wire Breaking Load (lbs)

OC5-10GRY

10

25,960

22,930 (12mm)

OC5-8GRY

8

23,100

19,335 (8mm)

OC5-7GRY

7

18,260

7,807 (7mm)

OC5-6GRY

6

12,100

6,340 (6mm)

OC5-5GRY

5

9,240

4,410 (5mm)

OC5-3GRY

3

5,060

1,587 (3mm)


Dyneema Ocean 3000

Dyneema Ocean 3000 rope combines high strength with minimal creep. It also features a UV coating for stability and enhanced abrasion resistance. This version of Dyneema rope has an excellent strength to weight ratio and is available in three colors—grey, red, and blue. These features, in particular, make the Dyneema Ocean 3000 a popular choice in commercial gym equipment where aesthetic and convenience are important considerations.

If you are looking for a rope with high strength and low stretch, this synthetic rope is a great option. It adds very little weight to your design, which is beneficial when developing fitness equipment that can quickly become bulky with various steel components. Dyneema Ocean 3000 is available in 656ft spools and the following specifications:

Product Number

Rope Diameter (mm)

Breaking Load (lbs)

Weight per 100 (oz)

OC3-8GRY

8

9,900

30.1

OC3-6GRY

6

6,380

18.3

OC3-5GRY

5

4,620

11.8

OC3-4GRY

4

3,520

8.6

OC3-3GRY

3

1,760

4.3

OC3-2GRY

2

850

2.2


If you have any questions about Dyneema rope, contact us online or call 401 293 0539.

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Ronstan’s end-to-end design, manufacture and distribution operation delivers high specification products for all serious hardware applications.

Our state-of-the-art design facilities and manufacturing plant handles more than 4.9 million units each year.

As one of the top three sailboat hardware brands globally we know what it is like to deliver great equipment that can handle challenging conditions.