For attachment to the anchor rail

Technical Details MBA

: MOSO MBA cast in channel

Anchorage on cast in channels with construction supervisory permit is more straightforward than dowel installation.

However, this type of attachment imposes high demands on the planning stage, as the façade planning should be completed during construction of the carcass.

The cast in channels are produced, according to the authorisation, of material 1.4571/1.4401 or 1.4362. The bolts are of material 1.4301.

Technical Details MBA

View tables

Technical data
MBA 28/15	MBA 38/17	MBA 50/31	MBA 52/34
Screw diameter
M10	M12	M12	M16
Overall rail height (mm)
50	77	106	159
Torque T_inst (Nm)
15	25	25	60
Min. distance from edge ar (mm)
50	75	150	200

Permissible loads
Type	FZ		FQ
Permissible loads (KN) (concrete >C20/25) point load further information see authorisation
Type	Continuous lengths	Short lengths I≤25 cm	Continuous + short lengths
MBA 28/15	3	3,5	3,5
MBA 38/17	4,5	7	8
MBA 38/17 K	7	-	8
MBA 50/31	10	12	12
MBA 52/34	22	22	22
FFZ: Centered tension and oblique tension(>15°) FQ: Transverse tension and ablique tension(<15°)

Permissible force Fv for different anchor spacings
Type / Version	Load stage	Anchor rail	HK screw	ak>	25 cm
Type / Version	Load stage	Anchor rail	HK screw	ar	FV
EK-U/-W-L WK-D/-N/-E FB-U	3,5	Continuous length MBA 38/17K or Short length (≤25cm) MBA 38/17	MHK 38/17 M12x80	75	3,5
WK-K	3,5		MHK 38/17 M12x80	80	3,5
WK-O	3,5		MHK 38/17 M12x80	300	3,5
WK-K	5,0	Continuous length or Short length (<25cm) MBA 50/31	MHK 50/30 M12x80	100	5,0
EK-U/-W-L WK-D/-N/-E FB-U	7,0		MHK 50/30 M12x80	150	7,0 (6,8)*
WK-K	7,0		MHK 50/30 M12x80	120	7,0
WK-O	7,0		MHK 50/30 M12x40	300	7,0
EK-U/-W-L WK-D/-N/-E FB-U	10,5	Continuous length or Short length (<25cm) MBA 52/34	MHK 50/30 M16x100	200	10,5
WK-O	10,5	Continuous length or Short length (<25cm) MBA 52/34	MHK 50/30 M16x40	300	10,5
* The value in brackets applies for anchor rail lengths > 250mm. The values specified in the table apply for anchors with standard dimensions. For a technical application, the attachment values will be recalculated by our engineering office with input of the actual conditions; this may lead to higher load-bearing capacities and other distances from the edge.

Anchor rails (cold-roll)
Designation	Continuous length	Short lengths	Corner piece
MBA 28/15	6050 mm	10 - 1050 cm	-
MBA 38/17	6050 mm	10 - 1050 cm	15 x 25 cm
MBA 38/17 K	6050 mm	10 - 1050 cm	-
MBA 50/31	6050 mm	10 - 1050 cm	15 x 25 cm
MBA 52/34	6050 mm	10 - 1050 cm	25 x 25 cm
Installation rails
MOS 28/15	6050 mm	On request	Also available with perforation (type MLS)
MOS 38/17	6050 mm	On request
MOS 50/31	6050 mm	On request
MOS 52/34	6050 mm	On request
Other dimensions on request

Hammer head (HK) screws
Type	For profile	Diameter	Right-hand thread,length	Left-hand thread,length
MHK 28/15	28/15	M 8	30 mm	On request
MHK 28/15	28/15	M10	20 - 200 mm	On request
MHK 38/17	38/17	M10	30 -60 mm	On request
		M12	25 - 200 mm
		M16	25 - 200 mm
MHK 50/30	50/31 52/34	M12	30 - 100 mm	On request
		M16	30 - 150 mm
		M20	45 - 150 mm
Other dimensions on request

Bold arrangement
Rail length (mm)	Arrangement of head bolt - end distance (mm)
100
150
200
250
> 250 - 6000

Errata and technical changes reserved.

MOSO MBA cast in channels

with authorisation of Institut for contruction technique, Berlin

Authorisation-No.: Z-21.4-1826
Stainless steel 1.4404/1.4571 or 1.4362

Keywords / Related terms: MBA rails, anchor rails, hammered-head bolts, hook-head bolts, support anchor rail