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Cow Mattress Comfort Roll

DLG-APPROVED: "Deformability/elasticity, permanent tread load"

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The Approval

A test mark “DLG-APPROVED for individual criteria” is awarded for agricultural products which have success­fully fulfilled a scope-reduced usability testing conducted by DLG according to independent and recognised evaluation criteria. The test is intended to highlight particular innovations and key criteria of the test object. The test may contain criteria from the DLG test scope for overall tests, or focus on other value-determining characteristics and properties of the test subject. The minimum requirements, test conditions and procedures as well as the evaluation bases of the test results will be specified in consultation with an expert group of DLG. They corres­pond to the recognised rules of technology, as well as scientific and agricultural knowledge and requirements. The successful testing is concluded with the publication of a test report, as well as the awarding of the test mark which is valid for five years from the date of awarding. The test was based on the DLG Testing Framework for elastic stable flooring, as of December 2018 and DIN 3763:2022-08 (Elastic floorings for cattle and dairy cows walking and rest surfaces – Requirements and testing). Other criteria were not tested.


Table 1: Overview of results

DLG Quality profileEvaluation
Deformability and elasticity in new condition
Deformability and elasticity following endurance test
Lasting deformation following endurance test
Rubber mat and PU foam: no noticeable wear after endurance test

DLG Evaluation range:
*  ■ ■  or better = meets, exceeds or significantly exceeds the established DLG standards, 
■ ■ = meets the legal requirements for marketability,  = failed
**   Single criteria slip resistance:    =  passed,  =  failed
***    Single criteria acid resistance:   ■ ■ = resistant, 
■ ■  = limited resistant,  = failed

Requirements of DIN 3763 are fulfilled for the tested criteria.
Deformation and elasticity corresponds to class 2 DIN 3763 for single pens for calves

Manufacturer and contact information

Manufacturer and Applicant
Qingdao Kingstone Industry Co., Ltd
No. 88 Baifeng Road, Jiaohe Economic District
Huangdao, Qingdao, China

Phone +86 (0532) 85176696



DLG TestService GmbH - Groß-Umstadt location • Max-Eyth-Weg 1 64823 Groß-Umstadt Germany • Tel.: +49(0)69 24 788-611 •