Metal insulation washer W-MDD
Insulation disc metal W-MDD
DWL-(W-MDD)-(HDG)-D80MM
Register now and access more than 125,000 products
- Permitted loads under exposure to fire R30; R60; R90; R120
- Tested fire resistance
- When attaching soft insulation materials that are not self-supporting, the insulation washer is simply pushed onto the insulation dowel
- Two-part design for fast, secure assembly
- Knock-in shaft has the design of a clamping sleeve and braces along the entire installation depth in the drill hole
- Anchor head surface is suitable as plaster base
The insulation panels must be fastened with at least 4 anchors per square metre.


Datasheets(X)
With a German construction permit, the anchor may be used in a multiple attachment configuration to anchor insulation panels in cracked and non-cracked standard concrete with a strength class of at least C20/25 and max. C50/60.
Disc diameter | 80 mm |
Internal diameter | 9 mm |
Material | Steel |
Surface | Hot dip galvanized |
Performance data | ||
Anchor diameter (mm) | 8 | |
Permissible load in concrete | Fperm [kN] = C20/25 - C50/601) | 0,074 |
Max. weight/panel in concrete (for 4 anchors) | (kg) | 29.64) |
Perm. load under exposure to fire2) | R30; Fperm [kN]2) | 0,07 |
R60; Fperm [kN]2) | 0,07 | |
R90; Fperm [kN]2) | 0,07 |
Designation | L [mm] | Max tfix [mm] | PU/qty. | ||
Insulation dowel, hot-dip galvanised steel Base diameter 35 mm | 5921 008 080 | W-MDD 8x80 | 80 | 40 | 250 |
5921 008 110 | W-MDD 8x110 | 110 | 70 | 250 | |
5921 008 140 | W-MDD 8x140 | 140 | 100 | 250 | |
5921 008 170 | W-MDD 8x170 | 170 | 130 | 250 | |
5921 008 200 | W-MDD 8x200 | 200 | 160 | 250 | |
5921 008 250 | W-MDD 8x250 | 250 | 210 | 200 |
Installation parameters | ||
Nom. drill dia. | d0 (mm) | 8 |
Diameter of cutting edges | dcut ≤ | 8,45 |
Drill hole depth | h1 ≥ (mm) | 45 |
Sleeve diameter | dh (mm) | 9 |
Effective anchorage depth | hef ≥ (mm) | 40 |