Passive-Safety Masts & Gantries
4420
Lattix® 4420
Passive safety mast for signs and all other types of road side information.
Standards and compliance
- EN12767
Details and drawings
Passive safety mast for signs and all other types of road side information.
Complete mast includes:
- Aluminium top plate with bolts
- Mast 4420
- Foot plate with washers and bolts
Product specifications
Performance under vehicle impact (passive safety):
100-NE-B-R-SE-MD-0
(according to EN12767:2019)
The Lattix® 4420 mast system can be used as mast for sign support, other information and surveillance equipment or other applications. The mast is delivered as a complete assembly including mast, base plate and top plate.
The mast is tested and approved according to:
- EN 12899-1, Fixed, vertical road traffic signs
- EN 12767, Passive Safety of support of structures for road equipment
Full-scale impact crash tests and simulations have been performed according to EN 12767 at a speed of 35 km/h and 100 km/h with 3,9 m mast length. Simulations show that the mast will have equal performance up to 8,65 m length.
The mast is approved for maximal 8,65 m and minimal 1,8 m from the ground to bottom of sign. Due to the risk of the penetration of the windscreen of an impacting car, the untested reduced minimum height of the lower edge of the sign shall not be lower than 2,0 m. Lower installations may be used, but risk of windscreen penetration shall be evaluated.
The sign mounted to a single mast should not weigh more than 200 kg and needs to be dimensioned according to local wind loads.
All performance presumes sufficient foundation.
| Performance under vehicle impact (passive safety) according to EN 12767:2019 | Value |
| Performed speed class tests and simulations | 35 km/h and 100 km/h |
| Approved speed class | 100 |
| Approved function class | NE (non energy absorbing) |
| Approved safety class | B |
| Durability | Value |
| Resistance to corrosion | Aluminium, class SP 2 |
The Lattix® 4420 mast system can be coated (powder-coated) if desired.
Product data
Material / Surface treatment
Mast: EN-AW 6063 T66
Base plate: S355, Galvanized steel according to EN ISO 1461
Bolts: BUMAX 109
Data / Weight
| Product | Mast side length [mm] | Section shape [mm], (square-cut) | Mast weight [kg/m] | Base plate weight [kg] | Bolt pattern, foundation [mm] | Bolts in base plate |
| Lattix® Mast 4420 | 197,5 | 197,5 x 197,5 | 7,6 | Ca. 15,5 | 240 x 240 | 4 x M20 |
Capacity
| Product | Maximum bending moment, Mu [kNm] *) | Stiffness for bending, EI [kNm2] | Shear capacity, FU [kN] | Maximum torsion moment, Tu [kNm] *) | Stiffness for torsion, GIt [kNm2] | Stiffness for torsion, GIt [kNm/(deg/m)] |
| Lattix® Mast 4420 | 40 | 728 | 20 | 4,5 | 71 | 1,24 |
*) The moments do not take into account the partial material factor gm. EN 12899-1 gives a gm for aluminium of 1,15.
Accessories
The Lattix® 4420 mast is delivered fully-assembled with top plate and base plate if not specified differently.
Lattix® Element Masts can be delivered with accessories kits:
- top plates,
- base plates,
- foundations,
- sign clamps,
- cable covers,
- brackets for tunnel,
- connector plates
- etc.
Lengths
The Lattix® 4420 mast is produced in many standard lengths, but can also be produced in customized length if desired.
| Standard length [mm] | Art. Nr. |
| 2330 | JU200724 |
| 2615 | JU200725 |
| 2950 | JU200726 |
| 3235 | JU200727 |
| 3520 | JU200728 |
| 3805 | JU200729 |
| 4090 | JU200730 |
| 4375 | JU200734 |
| 4660 | JU200731 |
| 4945 | JU200735 |
| 5230 | JU200732 |
| 5515 | JU200736 |
| 5800 | JU200737 |
| 6085 | JU200733 |
| 6370 | JU200738 |
| 6655 | JU200739 |
| 6940 | JU200763 |
| 7225 | JU200764 |
| 7510 | JU200765 |
| 7795 | JU200766 |
| 8080 | JU200767 |
| 8365 | JU200768 |
| 8650 | JU200769 |
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