Independent Technical Assessment for fischer HybridPower 10x90
Report no.: 25-005-2(0)
Technical Report
Name of product: fischer HybridPower 10x90
Type of product: Plastic anchor with metal power wedge
Manufacturer: fischerwerke GmbH & Co. KG
Validity: 5 years
Technical Assessment is based on: EAD 330232-01-0601, EAD 330284-00-0601-v01, 25-005-1(0)
Date: 09/07/2025
1 Task and Aim
The characteristic fire resistance of the fischer HybridPower in concrete under pure tension load, inclined load, and shear load is assessed in this report in accordance with EAD 330284-00-0604-v01 and EAD 330232-01-0601.
For this purpose, fire tests were conducted in concrete. The anchors were subjected to pure tensile loading (0°), inclined loading (45°), and shear loading (90°). Screws with a hexagon head and an integrally formed washer were used as inserts. The fire tests were performed at the MPA of the University of Stuttgart using the fischer HybridPower in size 10 with a screw diameter of d = 7 mm. The anchors were exposed to a standard fire defined by the standard temperature curve according to EN1363-1:2020-05.
The characteristic fire resistance in concrete is evaluated for a shear load and a 45° inclined tensile load according to EAD 330284-00-0604-v01 and under tension load according to EAD 330232-01-0601. The evaluation is based on detailed results summarised in the test report Fi 638/01-25/07 dated 05.05.2025 and on the assessment report 25-005-1(0) dated 25.06.2025.
The characteristic fire resistance is valid for the following conditions:
- all material versions
- head type FUS and type T
- uncracked and cracked concrete (note, that uncracked concrete is generally not present in case of fire)
According to EN-1992-4:2018 the recommended partial factor for materials is γM,fi = 1,0 for steel failure and concrete related failure modes under shear loading. For concrete related failure modes under tension γM,fi = 1,0·γinst is recommended.
2 Description of the product
2.1 General description
The fischer HybridPower is a plastic anchor consisting of a plug sleeve made of polyamide combined with a metal skeleton (power wedge) and a special screw made of either galvanised steel, galvanised steel with an additional organic coating, or stainless steel (see Figure 2.1). The anchor sleeve expands when the special screw is screwed in, pressing the sleeve against the borehole wall. The power wedges interlock with the base material, ensuring secure anchorage. The screw is available with two different head types, a hexagon head (type FUS) and a countersunk head (type T). In the fire tests galvanised screws with hexagon head were used. The plastic sleeve consists of Polyamid PA6 and a metal skeleton. An installed anchor is shown in Figure 2.3. A technical drawing of the anchor and the screws is shown in Figure 2.2.
Figure 2.1: HybridPower (sleeve: size 10, screw: size 7). This figure shows two variants: a) HybridPower 10x90 FUS with a hexagon head, and b) HybridPower 10x90 T with a countersunk head.
Figure 2.2: Technical drawings of the sleeve and the screws of HybridPower. This figure displays detailed schematics of the anchor sleeve and the FUS and T type screws, indicating various dimensions.
Figure 2.3: Installed anchor HybridPower (10x90 FUS, push-through installation). This diagram illustrates the anchor installed in concrete, showing the effective anchorage depth (hef) and total length (h).
Screw Materials
The screws are made of either galvanised steel, galvanised steel with an additional organic coating, or stainless steel. The material of the screws used in the tests is marked in bold (see Table 2.1). The range of validity for all steel grades can be justified by the fact that the assessments are based on test results with carbon steel anchors. According to EAD 330232-01-0604, it can be assumed that the carbon steel version represents the less favorable case compared to the stainless steel version as it results in a shorter fire resistance duration. Therefore, the results summarised in this report are applicable to all material versions.
| Anchor | Screw | Material | ||
|---|---|---|---|---|
| ds [mm] | lG [mm] | ls [mm] | ||
| HybridPower | 7,0 | ≥ 77 | ≥ lG+10 | Galvanised steel gvz with Zn5/Ag or Zn5/An according to EN ISO 4042:2022 |
| Electro galvanised steel gvz with Zn5/Ag or Zn5/An according to EN ISO 4042:2022 with additional organic coating (Zn5/Ag/T7 or Zn5/An/T7) in three layers (total layer thickness ≥ 6 µm) | ||||
| Stainless steel "A2" of corrosion resistance class CRC II according to EN 1993-1-4:2006 + A1:2015 | ||||
| Stainless steel "A4" or "R" of corrosion resistance class CRC III according to EN 1993-1-4:2006 + A1:2015 | ||||
Plastic sleeve
The plastic sleeve consists of Polyamid PA6. The drawing is shown in Figure 2.2.
2.2 Base material
The anchors are intended for use in both cracked and uncracked concrete of strength classes ranging from C20/25 to C50/60.
2.3 Head forms
As noted above, two different head types are available for the screw: a hexagonal head (type FUS) and a countersunk head (type T). In the tests, only the hexagonal head was used. However, the same screw types (FUS and T) are also used for the fischer DuoXpand, which already holds a valid ETA under fire exposure. The assessment with this anchor concluded that both screw head types show the same behavior under fire exposure. Therefore, the characteristic fire resistance values assessed in this report are valid for both head types.
2.4 Installation of the product
The installation instruction is shown in Figure 2.4. The essential installation parameters are listed in Table 2.2.
Figure 2.4: Installation instruction of HybridPower, type FUS (type T is analogous). This figure illustrates the steps for installing the anchor.
| Drill hole diameter d0 [mm] |
Anchor length l [mm] |
Minimum drill hole depth h [mm] |
Screw dimension ds x ls [mm] |
Effective anchorage depth hef [mm] |
Maximum thickness of fixture tfix,max [mm] |
Setting tool [-] |
|---|---|---|---|---|---|---|
| 10 | 90 | 90 | 7,0 x 89 (FUS) 7,0 x 87 (T) |
70 | 10 | TX40 |
3 Performance of the product under fire exposure
3.1 Fire resistance according to EAD 330232-01-0601
3.1.1 Tension loading (0°) (steel failure and pull-out failure)
The characteristic fire resistance to steel and pull-out failure for the HybridPower in concrete are listed in Table 3.1.
| Fire resistance class [-] | Load direction [-] | NRk,p,fi or NRk,s,fi [kN] | σRk,s,fi [N/mm²] |
|---|---|---|---|
| R30 | 0° | 0,45 | 11,59 |
| R60 | 0,35 | 9,05 | |
| R90 | 0,25 | 6,51 | |
| R120 | 0,20 | 5,23 |
3.1.2 Concrete cone failure
The fire resistance to concrete cone failure of HybridPower is listed in Table 3.2.
| Screw diameter [-] | hef [mm] | As [mm²] | N0Rk,c,C20/25 [kN] | N0Rk,c,fi(90) [kN] | N0Rk,c,fi(120) [kN] |
|---|---|---|---|---|---|
| 7 | 70 | 38,5 | 20,2 | 7,1 | 5,6 |
3.1.3 Steel failure under shear load
Shear tests under fire exposure were conducted in accordance with EAD 330284. Since the assessment methodology is identical for both EADs, the results obtained according to EAD 330284 are also applicable to EAD 330232. The corresponding values are listed in Table 3.3.
| Fire resistance class [-] | σRk,s,fi [N/mm²] | VRk,s,fi [kN] | Wel [mm³] | M0Rk,s,fi [Nm] |
|---|---|---|---|---|
| R30 | 99,17 | 2,0 | 33,7 | 2,09 |
| R60 | 76,64 | 1,5 | 1,62 | |
| R90 | 50,90 | 1,0 | 1,07 | |
| R120 | 38,03 | 0,8 | 0,80 |
3.1.4 Concrete pryout failure
The fire resistance to concrete pry-out failure is listed in Table 3.4.
| Screw diameter [-] | hef [mm] | As [mm²] | N0Rk,c,C20/25 [kN] | N0Rk,c,fi(90) [kN] | N0Rk,c,fi(120) [kN] | k8 [-] | V0Rk,cp,fi(90) [kN] | V0Rk,cp,fi(120) [kN] |
|---|---|---|---|---|---|---|---|---|
| 7 | 70 | 38,5 | 20,2 | 7,1 | 5,6 | 2,0 | 14,1 | 11,3 |
3.1.5 Concrete edge failure
The fire resistance to concrete edge failure is listed in Table 3.5.
| Screw diameter [-] | dnom [mm] | hef = lf [mm] | ccr,fi [mm] | k9 [-] | α [-] | β [-] | fck [N/mm²] | V0Rk,c [kN] | V0Rk,c,fi(90) [kN] | V0Rk,c,fi(120) [kN] |
|---|---|---|---|---|---|---|---|---|---|---|
| 7 | 7 | 70 | 140 | 1,7 | 0,07 | 0,05 | 20 | 18,2 | 4,6 | 3,6 |
3.2 Fire resistance according to EAD 330284-00-0604-v01
3.2.1 Tests under inclined loading (45°) (steel failure and pull-out failure)
The characteristic fire resistance to steel and pull-out failure for the HybridPower in concrete is listed in Table 3.6.
| Fire resistance class [-] | Load direction [-] | FRk,p,fi [kN] | σRk,s,fi [N/mm²] |
|---|---|---|---|
| R30 | 45° | 1,58 | 41,11 |
| R60 | 1,10 | 28,55 | |
| R90 | 0,62 | 15,99 | |
| R120 | 0,37 | 9,71 |
3.2.2 Tests under shear loading (90°) (steel failure)
The characteristic fire resistance to steel failure for the HybridPower in concrete under shear load is listed in Table 3.7.
| Fire resistance class [-] | Load direction [-] | FRk,p,fi [kN] | σRk,s,fi [N/mm²] |
|---|---|---|---|
| R30 | 90° | 1,99 | 99,17 |
| R60 | 1,54 | 76,64 | |
| R90 | 1,02 | 50,90 | |
| R120 | 0,76 | 38,03 |
3.2.3 Characteristic fire resistance for shear load with lever arm
The characteristic fire resistance for shear load with lever arm is listed in Table 3.8.
| Fire resistance class [min] | FRk,s,fi [kN] | σRk,s,fi [N/mm²] | Wel [mm³] | M0Rk.s,fi [Nm] |
|---|---|---|---|---|
| R30 | 0,45 | 11,6 | 33,7 | 0,47 |
| R60 | 0,35 | 9,0 | 0,37 | |
| R90 | 0,25 | 6,5 | 0,26 | |
| R120 | 0,20 | 5,2 | 0,21 |
3.2.4 Interaction of fire resistance for load directions between 45° and 90°
For the HybridPower the characteristic fire resistance for load directions between 45° and 90° is listed in Table 3.9.
According to EAD 330284-00-0604-v01, for fastening of facade systems, the load bearing behaviour of the specific screwed-in plastic anchor with a diameter ≥ 10mm and a metal screw with a diameter ≥ 7mm and a hef of ≥ 50mm and a plastic sleeve made of polyamide PA6 with no permanent centric tension load and only for shear load without lever arm FRk,fi,90 = 0,8 kN applies. The fire resistance FRk,fi,90 = 0,8 kN is justified for a load direction of α ≥ 57° with a constant tensile load of 1,1 kN.
| Load direction [°] | Characteristic fire resistance FRk,p/s,fi [kN] | |||
|---|---|---|---|---|
| R30 | R60 | R90 | R120 | |
| 0 | -1) | -1) | -1) | -1) |
| ≥45 | 1,58 | 1,10 | 0,62 | 0,37 |
| ≥60 | 1,99 | 1,54 | 0,87 | 0,53 |
| ≥75 | 1,99 | 1,54 | 1,02 | 0,76 |
| 90 | 1,99 | 1,54 | 1,02 | 0,76 |
1) Pure tension loading is not allowed according to EAD 330284. Pure tension loading is covered by EAD 330232 (see Section 3.1).
4 Summary
The characteristic fire resistance assessed according to both standards EAD 330232-01-0601 and EAD 330284-00-0601v01 are given in Table 4.1 and Table 4.2.
| Failure mode | Characteristic fire resistance [kN] | |||
|---|---|---|---|---|
| R30 | R60 | R90 | R120 | |
| Tension loading | ||||
| Pull-out or steel failure | 0,45 | 0,35 | 0,25 | 0,20 |
| Concrete cone failure | 7,1 | 7,1 | 7,1 | 5,6 |
| Shear loading | ||||
| Steel failure | 2,0 | 1,5 | 1,0 | 0,8 |
| Pryout failure | 14,1 | 14,1 | 14,1 | 11,3 |
| Concrete edge failure | 4,6 | 4,6 | 4,6 | 3,6 |
| Failure mode | Load direction | Characteristic fire resistance [kN] | |||
|---|---|---|---|---|---|
| R30 | R60 | R90 | R120 | ||
| Pull-out or steel failure | 0 | -1) | -1) | -1) | -1) |
| ≥45 | 1,58 | 1,10 | 0,62 | 0,37 | |
| ≥60 | 1,99 | 1,54 | 0,87 | 0,53 | |
| ≥75 | 1,99 | 1,54 | 1,02 | 0,76 | |
| 90 | 1,99 | 1,54 | 1,02 | 0,76 | |
1) Pure tension loading is not allowed according to EAD 330284. Pure tension loading is covered by EAD 330232 (see Table 4.1).
According to EN-1992-4:2018 the recommended partial factor for materials is γM,fi = 1,0 for steel failure and concrete related failure modes under shear loading. For concrete related failure modes under tension γM,fi = 1,0·γinst is recommended.
