Inner signal warning sleeve

The core of a round sling can be covered by an inner signal warning sleeve. This is a red Dyneema® or orange high tenacity Polyester sleeve which serves the purpose of indicating when a sling is damaged. When the inner signal warning sleeve is visible, the jacket has been damaged already and the sling can not be used any further. This way, the core of the round sling is still usable and only the jacket needs to be repaired or replaced.

RJ3_7897-350x250
RJ3_7872-350x250
RJ3_7865-350x250

Dyneema® inner signal warning sleeve

Dyneema® is extremely resistant to cuts, abrasion and puncture. Even when the outer jacket is damaged, a Dyneema® inner signal warning sleeve will protect the core of the roundsling. A Dyneema® inner signal warning sleeve will be provided in the color red, to make sure it stands out and is directly noticeable.

Dyneema® properties:

  • Resistance against cuts, abrasion and puncture
  • Service temperature range from -50°C up to +70°C
  • Extremely resistant to UV
  • Excellent on (sea)water and moisture
  • Good resistance against acids and alkali

Dyneema® advantages:

  • Extremely durable and stretchable
  • No damage to payload
  • Proven track-record in many industries/applications
  • Chemical resistant
  • Extremely resistant to cuts, abrasion and puncture
RJ3_7896-350x250
RJ3_7892-350x250
RJ3_7894-350x250

Polyester inner signal warning sleeve

A polyester inner signal warning sleeve is less resistant to cuts, abrasion and puncture than Dyneema®. The polyester sleeve will be provided in orange.

Polyester versus Dyneema® comparison

Polyester:

  • Abrasion resistant
  • Service temperature range from -40°C up to +100°C
  • D:d ratio approx. 1:2 with small WLL & 1:3 with high WLL
  • Elongation at WLL < 3 until 5%
  • Elongation at break ≈ 8 until 10%
  • Takes up water