Self Supporting 4 Legs Galvanized Steel Telecom Tower Galvanized iron
4 Legs Self-Supporting Galvanized Angle Steel Lattice Tower
4-legged Free Standing Angular Mobile AntennaTower
Professional supplier and factory of 4 legs Self-supporting Galvanized steel Lattice Communication Tower, Antenna Tower, Radio Tower and TV tower, Power Transmission and Distribution Tower
There are 3 popular types of lattice communication towers--ground fixed self-spoorting steel towers, rooftop self-supporting steel towers and steel wire guyed towers. The steel lattice towers are usually as high as 35m to 120m. Besides using for telecommunications, the steel towers are also widely used for power transmission and distribution as well as TV and radio signal transmission stations.
SST: Self-supporting Steel Tower
Self-supporting steel tower is the most popular tower for communication or power transmission and distribution applications. It’s generally designed for 3 legs or 4 legs, composed of galvanized tubular steel tubes and angular steel plates by welding and fastening with bolts and nuts. With height of 20m to 120m, the galvanized iron or steel lattice towers are widely used for mounting mobile communication macrocell stations and power transmission or distribution wires or cables.
Specifications of 4 Legged Angular Steel Lattice Tower
| Material | Angle steel plates, flat steel plate, bolts and nuts |
| Steel Type | Weldable low carbon structural steel |
| Steel Grade | GB Q235, Q345, BS 4360, ASTM A36 etc. |
| Yield Strength | Fy≥235MPa |
| Tensile Strength | Fu≥400MPa |
| Elongation | σ≥20% |
| Surface Finish | Hot dip galvanization plus optionally painting |
| Galvanized layer | T≥65μm |
| Height | 20m to 120m, customized to requests and specifications or drawings |
| Design | 4 legs self-supporting free standing lattice tower |
| Structure | 1 to 5 platforms, each platform comes with 4 to 6 brackets for mounting antennas or specified number of brackets for mounting antennas, microwaves, RRUs and other devices. |
| Supply mode | CKD(Complete Knocked Down), SKD(Semi-Knocked Down), DKD(Direct Knocked Down) |
| Fixing/Fastening | Bolts and nuts, connecting plates |
| Configuration | Concrete steel frame Foundations/pedestals, anchoring hold down bolts, tower sections, 1-5 platforms (optional), mounting brackets, ladder, anti-fall safety system, lightning rod, earthing plate etc. |
| Wind Load | 0.35-1.0kN/sqm |
| Lifespan | 20-50 years |
| Warranty | 3 years |
| Applications | GSM/3G/4G/5G cellphone antennas, VHF/FM radio antennas, microwaves, telecom microcell or macrovell stations, TV stattions etc. |
70m High Mast 4-leg Anglular Steel Mobile Communication Tower With 3 Platforms and Antenna Brackets
The structure of 4-legged galvanized steel lattice communication tower is generally composed of concrete foundations with steel cage frames, anchoring bolts, sections of tower body, 1 to 5 platforms, mountning brackets, lightning rotection rod, ladder, earthing plates, anti-fall safety system (cage structure) and fasteners (such as clamps, clips, bolts and nuts etc.). The design structure and height of telecommunication towers can be customized according to requirements and drawings.
Similar Galvanized Steel Communication Towers
3 legged self-support steel lattice tower is generally made of tubular steel pipes as main structure (you can tell it as tower legs or body) and angular steel plates or steel tubes or rods as sub-frame (horizontal and vertical braces). The lattice tower is generally divided into several sections and the sections are connected by flange plates with bolts and nuts. Each tower section is made of tubular steel pipes and angular or flat steel plates, sometimes the tower is made of completely steel pipes or some braces are made from solid steel bars.
The sections of tubular steel lattice tower completely made from steel pipes are generally welded in factory by 5m or longer lattice parts, each section is welded with flange plates for connection among tower sections. When you install the tower, you need to construct foundations with anchoring bolts frame (someone calls it steel cage frame) and concrete. The tower is fixed to foundations via flange plates with bolts and nuts. This kind of tubular steel lattice tower is easier for installation and very solid and strong, but the cost is a little higher and more costly for transportation because all the tower sections are welded in big parts which take more room in the truck or container.
So the most popular 3 legged steel lattice tower is made from tubular pipes and angular steel plates. The steel pipes are made for tower legs, angular steel plates are made for bracings (support members) and flate steel plates for connectors. The steel pipes are welded with flanges at each end for connection. All the parts of tower are prefabricated in CKD (completel knocked down) steel members ready for installation. When you install the tower, just fix the steel pipes to foundations by bolts and nuts and then connect the angular steel plate bracings to the pipes via welded connecting plates with bolts and nuts. In CKD way of fabrication, the cost is lower and shipping cost is also much lower because you can ship more materials in a container or truck.
The structure of 3 legged steel lattice communication tower is generally composed of foundation anchoring bolts (cage frames), sections of tower body, 1 to 5 platforms, mountning brackets, lightning arrest or protection rod, ladder, earthing plates, anti-fall safety system (external cage structure) and fasteners (such as clamps, clips, bolts and nuts etc.). The design, structure and height of telecommunication towers can be customized according to requirements and drawings.
Rooftop Galvanized Steel Bipod or Tripod or Lattice Tower
The rooftop steel tower is a small size tower for communication microcell station for enlarging the telecommunication signal coverage in the communities. It is typically designed as bipod or tripod tower mounted on the roof top, the height of rooftop towers is generally 5m to 15m. The rooftop tower is composed of a main pole which is made from tubular steel pipe and some angle steel or flat steel plates as bracings, connected by flanges, bolts and nuts. A foundation with anchoring bolts is also required for fixing the tower. Sometimes the rooftop tower is designed as wire guyed tower to make it with higher wind load.
Galvanized angle steel plates
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