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Test report 7470
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 DLG Appoved Test “Deformability/Elasticity, Permanent Tread Load” includes technical measurements on test stands of the DLG Test Center. The deformability and elasticity were measured and a permanent tread load was applied. The test was based on the DLG Testing Frameworks 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 investigated.
Assessment – brief summary
The veal floor tested here, was investigated with regard to durability and comfort properties on test stands in the DLG Test. The deformability and elasticity were measured and a permanent tread load was applied. Requirements DIN 3763 are fulfilled for the tested criteria. Deformation and Elasticity corresponds to class 2 DIN 3763 for single pens for calves.
Table 1: Overview of results
| Dlg Quality profile | Evaluation* |
| Lying measurement deformability and elasticity in new condition | ■■■■■ |
| Lying measurement deformability and elasticity following endurance test | ■■■■■ |
| Walking measurement deformability and elasticity in new condition | ■■■■■ |
| Walking measurement deformability and elasticity following endurance test | ■■■■■ |
| Lasting deformation following 250.000 endurance test | ■■■■■ |
| No noticeable wear and no damage following 250.000 endurance test | ■■■■■ |
* DLG Evaluation range:
■■■ or better = meets, exceeds or significantly exceeds the established DLG standards,
■■ = meets the legal requirements for marketability
■ = failed
The product
Description and Technical Data
The floor covering tested here, is an elastic floor covering for calves.
- green-black (also available as white-black) non-profiled curved rubber pad for slatted floors with plastic fastening clip.
- The rubber pad is suitable as a floor covering for slatted floors made of single, twin beams or large elements (with 3, 4, 5, 6 or 7 beams) both timber or concrete.
- The rubber pad is manufactured to fit every column element size.
- height of rubber pad: approx. 18.5 mm
- height with fastening clip (standard leg for concrete): approx. 85.5 mm
- height with fastening clip (short leg for timber): approx. 63 mm
The mats are supplies as single elements and they fit over each individual beam or slat and are notched in production to suit the element dimensions.
The method
Deformability and elasticity
Lying measurement
The deformability is measured in new condition and following permanent tread load using ball penetration tests with a calotte (r = 120 mm) and a penetration force of 2,000 N (corresponding to approx. 200 kg).
Walking measurement
The deformability is determined in new condition and after the continuous tread load with a cow’s foot modeled steel base and a penetration force of 2,000 N (approx. 200 kg). Where: the “artificial cow’s foot” in its dimensions is the one used in the continuous tread load.
Permanent tread load
The measurement of the continuous tread load is carried out with 250,000 alternating loads at 5,000 N (corresponds to approx. 500 kg) on a test bench with a round steel foot. The steel foot is adapted to the natural conditions as an “artificial cow foot”. The foot has a diameter of 105 mm and therefore a contact area of 75 cm²; the carrying edge of the hoof is simulated by a 5 mm wide ring on the periphery of the sole that projects 1 mm above the rest of the surface.
The test results in detail
Deformability and elasticity
Lying measurement
In the ball penetration tests in new condition with a calotte (r = 120 mm), penetration depth was 11.3 mm. The resulting calculated bearing pressure of 23.5 N/cm² indicates a load on the carpal joints when lying down and getting up. Elasticity was measured following a permanent tread load exerted by a steel foot (contact area: 75 cm²) with 250,000 alternating loads at 5,000 N. Following the endurance test, the penetration depth of the calotte increased from 11.3 to 11.4 mm. The bearing pressure decreased from 23.5 N/cm² to 23.3 N/cm² (see Fig. 3a). This means that deformability and elasticity slightly increase.
Walking measurement
In the impression tests with an artificial cow foot was the depth of penetration of the walkway surface in new condition 10.6 mm. The calculated bearing pressure is 26.67 N/cm². The elasticity was measured after the permanent load tread by a steel base (contact area 75 cm²) with 250.000 alternating loads measured at 5,000 N. The depth of penetration increased after the endurance test of 10.6 mm to 11.1 mm. This means, that deformability and elasticity of the walkway covering increase (see Fig. 3b).
Permanent tread load
After the continuous tread load on a test stand with 250.000 alternating loads at 5.000 N there was observed no noticeable wear and no damage on the surface of the mat. No lasting deformation was observed.
I.C.E. Comfort Slat Mats Ltd.
Poppintree Industrial Estate
Finglas, Dublin D11PW90
Ireland
Contact:
Phone 00353 1 8643494
Telefax 00353 1 8643502
sales@comfortslatmat.com
https://www.slatmats.com
Test implementation
DLG TestService GmbH, Standort Groß-Umstadt
The tests are conducted on behalf of DLG e.V.
DLG test framework
DLG Testing Frameworks for elastic stable flooring, as of December 2018
DIN 3763:2022-08 (Elastic floorings for cattle and dairy cows walking and rest surfaces – Requirements and testing)
Department
Agriculture
Division head
Dr. Michael Eise
Test engineer(s)
Dr. Harald Reubold *
* Author
Contact us
DLG TestService GmbH - Groß-Umstadt location • Max-Eyth-Weg 1 • 64823 Groß-Umstadt • Tel: +49 69 24 788-600 • tech@DLG.org