Compared to grade 80, grade 100 chains provide a higher carrying capacity and therefore they have been used for many years. Chain materials got a particular alloying process that results in a higher wear resistance, assured strength and 25% higher carrying capacity. Compared to grade 80, the equivalent carrying capacity results lower own weight, even though measurements and shaping are equivalent to the grade 80. CoComfort chain slings are suitable for heat application up to 400° C, but please pay attention to loss of carrying capacity!
Relating to grade 1 DIN EN 818-1, no details are defined about requirements and inspection procedures. And this – depending on respective manufacturing – often results in deviations of measurements and shape. Please take note that combining chains from different manufacturers strictly requires first the consulting of the manufactures, also second the manufacture’s release. In April 2006, the PAS 1061(PAS = Publicly Available Specification) was published. This PAS 1061 completes the standards of the series referring to DIN EN 818, and defines in detail the requirements for short link and medium tolerance round link chains which can be used for chain slings and for general lifting purposes. The DoComfort product range (chains and accessories) applies to these specifications and even gets ahead of them relating to temperature resistance (400° C instead of 380° C). Since April 2004, this system replaces the prototype certificate of grade 100 by North German Employees Insurance Association for Metal Working Industry (NMBG) showing as a decagonal carrying capacity labeling. Combining chains and components from different type series is only permitted with prior release given by Dolezych.
Advantages of DoComfort chain slings:
With the same nominal diameter, up to 25 % more load capacity compared to chain systems of Grade 80. Hence: significant weight reduction at the same load capacity Considerable weight reduction
Compliant with all requirements of EU-standards EN 818-4
Less wear of chain links and accessories through higher surface hardness
Impact toughness in comparison to Grade 80 more than doubled
In itself an non-confusable system, only chains and components with equal load capacity can be combined with another
Elongation strain at least 20 %
Load capacity at temperatures up to + 200° C = 100 %, from + 200° C – + 300° C = 90 %, from + 300° C – + 400° C = 75 % of nominal load capacity
Quality-Management-System DIN EN ISO 9001:2000 warranted, constantly high quality standard. Moreover, regular inspection of the production through external inspection agencies
All chain components have:
Official approval stamp of BG for the presently highest possible Grade 100 in the area of chain slings
Standard turquoise color
Please note: For safety reasons, components or chains of DoComfort-System are not to be combined neither with special grade of other manufacturers, nor with components or spare parts of other grades. Safety is guaranteed only then, if all turquoise components as well as connecting bolts are of gold color – for this reason an unambigious matching is guaranteed.
with hook and shortening claw
with end link
with WHG hook
with SHA hook
with GVS componentl
with AHG hook
Chain nom. size in mm
Load capacity in t at 0°
DoKettPlus chain slings grade 100
DoKettPlus chain components with higher carrying capacity.
DoKettPlus components basically meet all the requirements of the grade 100 and that results in 25% higher carrying capacity compared to equivalent components of grade 8.