Do.L.O.R.E.S. – the load securing calculation software

In accordance with DIN EN 12195-1 and VDI 2700, sheet 2 Do.L.O.R.E.S. is the load securing calculation software.

Do.L.O.R.E.S stands for ‘Dolezych Ladungssicherung Optimiertes Rechnergestütztes Experten System’ (Dolezych load securing optimised computer-aided expert system). With this software you can determine the necessary number of lashing equipment and their dimensioning with pinpoint precision. Do.L.O.R.E.S. can be used alternatively in assistant mode or in expert mode. The assistant mode offers support in entering the data and is the fastest way to the result. The expert mode offers a large number of input options and also calculates the securing of the load for combinations of different lashing methods.

These are your advantages:

  • the optimised user interface ensures ease of use
  • an extensive help function guides the user step by step through the program
  • there are numerous calculation examples for different loads
  • the arrangement of the load on the loading area can be changed by mouse click
  • DoLores is in German and English; further languages will be available shortly
  • the inputs and results can be stored for subsequent further use
  • there are extensive documentation and printing options for your documents The calculation of the securing of the load takes place in accordance with the valid DIN EN 12195-2. However, calculation parameters according to VDI 2700, sheet 2 can additionally be selected. Supplementary to the European standard, the securing of special loads, e.g. reinforcing steel meshes, is dealt with here.

Endless web slings

Dolezych endless web slings (1- or 2-layer) according to DIN EN 1492-1 are perfectly suited for use with traverses in lifting or choking use. Compared to eye slings, endless web slings are much simpler to sew and thus are highly economical lifting devices.

Advantages of endless web slings:

  • easy handling in choking use
  • loads are always acrried ya two strands
  • higher load capacity compared to web slings or stirrup slings of equal width
  • highly cost-efficient

Endless web slings “DoColor”, single layerBandschlinge 1-lagig Dolezych




Endless web slings single layer table


Endless web slings “DoColor”, double layerBandschlinge 2-lagig Dolezych


Endless web slings double layer table

One-way use web slings according to DIN 60005

Einweg-Hebeband nach DIN 60005

One-way use web slings are produced according to DIN 60005 and have a safety factor of 1:5. That means that a sling with a working load limit of 1 t has to reach a breaking load of 5 t. One-use web slings are used for the transport of goods from manufacturer to the customer. They have to be disposed of at the end of the chain of transportation.

Historic situation:

Web slings, especially endless web slings which were not produced in accordance to DIN EN 1492-1 used to be called disposable slings. These slings differing from DIN EN 1492-1 neither did have a colour code nor a standardized, and therefore, unambiguous labelling. They do not meet the minimum thickness prescribed by the industry standard. They were intended for one way-use and supposed to be destroyed afterwards. The safety factor for one-use slings should be 1:5 which is derived from the regulations of BGR 500. In real-life use, these one-use / disposable slings were also used for preslung procedures although they were never intended for this at any rate (see reference to pre-slung procedures on pages 38 and 39). In some opean countries such disposable slings were produced with safety breaking factor 1:4 and even erroneously used for pre-slung procedures in some German enterprises.

DIN 60005:

Because of this DIN 60005 was developed as the new basis for one–way slings.

What does DIN 60005:2005 specify?

  • Safety factor 1:5 is valid, that means that the minimum breaking force must be the working load limit multiplied by 5
  • Minimum thickness of the sling material is 1 mm
  • Maximum band width is 100 mm
  • For unambiguous identification of one-way use, all web slings are equipped with an orange label
  • At the end of the chain of transportation, this means that the one-use web sling must be destroyed

By coming into effect DIN 60005 and a resulting DIN EN in Germany (correspondingly in ope) there is no longer any danger of confusion concerning the carrying load capacities. One-use, or disposable web slings can have very different designs in practical applications, such as endless web slings or eye slings in different colours.

One-way use endless web slings table

[issuu width=420 height=297 backgroundColor=%23222222 documentId=121009131150-f07452694f0e45a89bcc40d4302dcdb4 name=windkraft_transport username=dolezych tag=anschlagmittel unit=px v=2]

For Download:

Wind power catalogue

For any questions please contact our partner in the netherlands:

Visitenkarte Woest


Eye slings

Dolezych eye slings are lightweight and handy. The eyes are reinforced by coloured abrasion-resistant woven material. The eye reinforcement does not swell up when wet: that is why we do not use leather. For 1-4 layer web slings we differentiate between two differently sewn types of eyes that have shown their efficiency in practice: For multi layer web slings the flat eye is standard. They are available in standard reinforcement and full reinforcement. Single layer stirrup slings are produced with a 90° turned “inversed eye” (type C + D). They are available in standard reinforcement and full reinforcement.

Table eye widths and eye types

In the table to the right, you will find an overview of all available and technically possible eye widths and eye types. Depending on the width of the eye sling firstly, you have the choice between eye widths which have either full, half, or one-third width of the web sling.
You also have the choice of eye type:

  • standard reinforcement (type A)
  • full reinforcement (type B)
  • inversed eye (type C) normal reinforcement
  • inversed eye, full reinforcement (type D)

Upon request, we also produce web sling eyes in special dimensions and with special reinforcements adjusted to your special crane hook.



Eye slings “DoColor”, type ASchlaufenband Typ A 05619602

double layer, flat eye with standard reinforcement


Eye sling type A table


Eye slings “DoColor”, type BSchlaufenband Typ B 05619604

double layer, flat eye with full reinforcement


Eye sling type B table

Eye slings “DoColor”, type C and DSchlaufenband Typ C 05319002

single layer inversed eye with standard reinforcement (type C) or full reinforcement (type D)


Eye sling type C table


Eye slings Schlaufenband DoAntiCut“DoAntiCut”

double layer, flat eye with full reinforcement

Advantages for you:

  • DoAntiCut- woven edge protection for better protection against lateral damageDoAntiCut-Schlaufenbänder-Beispiel
  • V-shaped woven edge absorbs lateral stress
  • Woven edge works as a buffer between edge and carrying belt
  • resists all kinds of stress like dragging through under a load, dragging across floors, or fastening to crane hooks which are not totally burrfree. As a default, the eyes are reinforced up to the overlapping seam with extra abrasion resistant abrasion protection .
  • For easier visual recognition and differentiation e.g. to determine working load limit in low light conditions DoAntiCut eye slings are produced in luminous “ocolours”

Eye sling DoAntiCut table


With continuous imprint of working load limit.
The roundslings have webbed in stripes for each ton working load limit, one stripe per ton.

Every roundsling is specially impregnated which makes it more resistant against abrasion and dirt.

Supporting element is a high-end PES polyester fibre webbing roundsling endlessly folded. The working load limit grows according to the number of these fibres.  The protective cover of roundslings is made of seamless woven impregnated polyester webbing for endlessly folded fibre webbing.  Long-lasting marking on the protective cover: One woven-in bar for each ton of working load limit and imprinted working load limit on the other side.

Roundsling “DoForce 1”Rundschlinge DoForce Dolezych

with single cover

Roundsling with single cover table

Roundsling “DoForce 2”Rundschlinge DoForce Dolezych

with double cover

Roundsling with double cover table


Roundsling “DoWeb”Rundschlinge DoWeb Dolezych

with woven-in WLL marking

Roundsling DoWeb table

Roundsling “DoPremium”

The DoPremium roundsling results from optimizing all available qualities concerning abrasion resistance, widths, tearing resistance, wrinkling tendency, service periods and safety coding.

The roundsling cover of the well- proven DoWeb has been developed even further. The improved webbing design now offers more protection against abrasion and improves handling as the wrinkling tendency has been reduced to a minimum.

According to the standard, a roundsling has to be disposed of if the cover is damaged in such a way that the folded fibres can be seen. Compared to other roundslings the DoPremium quality offers longer service periods as the thickness of the cover can be compared to the one of a web sling.

The DoPremium roundsling has, in addition to the bar code (1 bar for each ton of working load limit), a woven-in working load limit mark. This can smoothly glide over angular loads. The mark can not rot or wear off.

In addition to the compact design, the optimized supporting width under the load and a premium design distinguish these top-rate roundslings. With the new DoPremium, we offer a product which unites all characteristics of a robust and conforming to safety regulations high-value lifting device. It can really be called a “supersling”. New technology for even more safety!

Roundsling DoPremium table

Heavy load roundsling “DoMega”Rundschlinge DoMega Dolezych

We produce heavy load roundslings up to a carrying capcity of 100 tons in all lengths. The advantages for the lifting of heavy loads are obvious: Compared to chains and ropes, a low own weight, especially protecting sensitive goods.

In the higher weight range, DoMega roundslings should be equipped with sharp edge protection if the loads are very angular or if they have sharp edges.

Heavy load roundsling table

The company history

Important dates in the company’s story

  • 1935 Franz Dolezych founds the company in Dortmund
  • 1949 Reconstruction of the factory, destroyed in the Second World War
  • 1968 Udo Dolezych joins the company
  • 1990 Udo Dolezych becomes sole managing partner
  • 1992 Branch founded in Kattowice/Poland
  • 2001 Branch founded in Balsthal/Switzerland
  • 2003 Branch founded in China
  • 2007 Branch opened in the Ukraine
  • 2008 Branch founded in Chile
  • 2010 The company celebrates its 75-year anniversary
  • 2011 Tim Dolezych joins the company