Metal insulation dowel W-MDD
Steel insulation anchor W-MDD
DWL-(W-MDD)-(HDG)-D35MM-(200-250)-8X300
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- 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 disc is simply pushed onto the insulation anchor.
- Quick and secure mounting thanks to 2-part construction
- Knock-in shaft has the design of a clamping sleeve and braces along the entire installation depth in the drill hole
- Surface of anchor head suitable for use as a plaster base
The insulation panels must be fastened with at least 4 anchors per square metre.
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.
 | |
Anchor diameter | 9 mm |
Anchor length (l) (l) | 300 mm |
Disc diameter | 35 mm |
Nominal drill-bit diameter (d 0) | 8 mm |
Embedding depth (h nom) | 40 mm |
Type description | W-MDD |
Material | Steel |
Max. attachment height (t fix) | 260 mm |
Centre-to-centre distance (a) | 120 mm |
Edge clearance (a r) | 60 mm |
Minimum component thickness (h min) | 80 mm |
Surface | Hot dip galvanized |
| Performance data | ||
| Anchor diameter (mm) | 8 | |
| Permissible load in concrete | Fperm [kN] = C20/25 – C50/601) | 0,074 |
| Max. weight/plate 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 | |
| R120; Fperm [kN]2) | 0,06 | |
| Axis distance R30–R120 | scr, fi (mm)3) | 160 |
| Edge distance R30–R120 | c cr, fi (mm)3) | 80 |
| 1) Permissible load = zulF = RD/ΥRD with HyRD = 1.35 2) Under fire stress, the partial safety factor for the load-bearing capacity YM, fi is at least 1.0 3) If the fire affects more than one side, the edge distance must be ≥ 300 mm. 4) 29.6 kg corresponds to 0.296 kN | ||
| Designation | L [mm] | max tfix [mm] | PU/qty. | ||
| Insulation anchor steel hot dip galvanized Washer dia. 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 | |
| 5921 008 300 | W-MDD 8x300 | 300 | 260 | 200 | |
| Insulating material washer, steel, hot-dip galvanised washer dia. 80 mm | 5921 008 80 | W-MDD 80 | – | – | 250 |
| Insulation anchor, A2 stainless steel, washer dia. 35 mm | 5921 018 080 | W-MDD-R 8x80 | 80 | 40 | 250 |
| 5921 018 110 | W-MDD-R 8x110 | 110 | 70 | 250 | |
| 5921 018 140 | W-MDD-R 8x140 | 140 | 100 | 250 | |
| 5921 018 170 | W-MDD-R 8x170 | 170 | 130 | 250 | |
| 5921 018 200 | W-MDD-R 8x200 | 200 | 160 | 250 | |
| 5921 018 250 | W-MDD-R 8x250 | 250 | 210 | 200 | |
| 5921 018 300 | W-MDD-R 8x300 | 300 | 260 | 200 | |
| Insulating material washer, steel, A2 stainless steel washer dia. 80 mm | 5921 018 80 | W-MDD-R 80 | – | – | 250 |
| Installation parameters | ||
| Nominal drill bit diameter | d0 (mm) | 8 |
| Drilling surface diameter | dcut ≤ | 8,45 |
| Drill hole depth | h1 ≥ (mm) | 45 |
| Sleeve diameter | dh (mm) | 9 |
| Embedment depth | hef ≥ (mm) | 40 |
| Minimum component thickness | hmin ≥ (mm) | 80 |
| minimum edge distance | cmin ≥ (mm) | 60 |
| Minimum axis distance | smin ≥ (mm) | 120 |
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