Single cover or double cover? Polyester round slings look similar from the outside. The difference lies in the sleeve that encloses the load-bearing fibres. The DoForce has a single cover, the DoForce2 a double one. This comparison shows what the product data says about both versions and when each one fits. You will find all models in the round slings category.
Both versions at a glance
The values are taken from our product data. We compare four round slings with different load capacities and lengths.
| Criterion | DoForce single cover | DoForce2 double cover |
|---|---|---|
| Examples | WLL 1,000 kg and 2,000 kg, each 500 mm | WLL 2,000 kg and 3,000 kg, each 1000 mm |
| Cover | single sleeve | double sleeve |
| Strength according to description | flexible and gentle on the load | additional protective layer, longer service life |
| Material | polyester (PES) | polyester (PES) |
| Colour | violet (1,000 kg), green (2,000 kg) | green (2,000 kg), yellow (3,000 kg) |
| Operating temperature | -40 °C to +100 °C | -40 °C to +100 °C |
| Standard according to product data | EN 1492-2, DIN EN 1492-2 | EN 1492-2, DIN EN 1492-2 |
The figures are manufacturer specifications. The respective product page and the operating instructions are authoritative.
This article is a selection guide – the manufacturer's operating instructions apply for use and inspection.
What the cover of a round sling does
A round sling consists of load-bearing fibres enclosed in a sleeve. The cover protects these fibres against wear. Both versions are made of polyester (PES).
Single cover: flexible and light
According to the product description, a single cover keeps the sling particularly flexible and gentle on the objects being lifted. The description also mentions the low weight and easy handling. According to the manufacturer, the single cover offers protection against wear.
Double cover: an additional protective layer
On the DoForce2, a second cover encloses the fibres. According to the product description, this double-cover construction offers an extra layer of protection and is meant to extend service life.
The models in detail
DoForce with single cover
The Round sling DoForce single sheath WLL 1,000 kg, 500 mm is violet and has a nominal length of 500 mm. The Round sling DoForce single sheath WLL 2,000 kg, 500 mm is green and also 500 mm long. This makes both of them the short slings in our comparison.
DoForce2 with double cover
The Round sling DoForce2 double sheath WLL 2,000 kg, 1000 mm is green and has a nominal length of 1000 mm. The Round sling DoForce2 double sheath WLL 3,000 kg, 1000 mm is yellow and the same length. The operating temperature range stated in the product data, -40 °C to +100 °C, is what counts.
According to the product description, the colour identifies the load capacity in line with EN 1492-2. This makes it possible to see at a glance which sling may carry which load.
Which version for which job?
Workshop with sensitive components
For the DoForce with a single cover, the product description states that it is flexible and gentle on the objects being lifted. The product data for the DoForce2 says nothing about this, and the slings compared here differ in length.
Production with frequent use
If the sling is used daily and often, the additional protection of the double cover can make sense. According to the manufacturer, the DoForce2 is meant to last longer.
Warehouse with a freezer area
According to the product data, both versions are designed for temperatures from -40 °C to +100 °C. The manufacturer's operating instructions apply for use.
Check before every use
Check the round sling before every use. The manufacturer's operating instructions explain how the permissible load changes with the slinging method and when a sling must be withdrawn from use. The manufacturer's specifications apply.
Frequently asked questions
Does a round sling with a double cover carry more load?
Not automatically. The load capacity is stated as WLL in the product name. The double cover concerns the protection of the fibres, not the load rating.
What does the colour of a round sling mean?
According to EN 1492-2, the colour indicates the load capacity. In our comparison, the slings are violet, green or yellow.
Which length do I need?
The length depends on the load and the slinging method. Here, the DoForce comes with a nominal length of 500 mm and the DoForce2 with 1000 mm.
When may a round sling no longer be used?
The criteria for this are set out in the manufacturer's operating instructions. Base your check before every use on these requirements.
Conclusion
The single cover stands for flexibility and gentle handling, the double cover for additional protection of the fibres. The load capacity does not depend on the cover but is stated as WLL in the product name. Choose by load, length and frequency of use. Like the load capacity, the nominal length is stated directly in the product name of each sling.
You will find all models under round slings. We are happy to advise you: +49 2237 628095-00, Monday to Friday from 9 am to 5 pm.