? What’s the difference between Tubular Towers and Angular tower

The question of whether to use angular or tubular towers is always at the background of every project, the answer is not straight forward, because each type of tower is suitable to certain applications. As apparent from Mer Telecom’s line of telecom towers, we have incorporated both designs in order to supply cost effective towers to a wide variety of applications.

What’s the Tubular Steel Poles

Tubular steel poles are another of the major types of transmission towers. They are made up of hollow steel poles. Tubular steel poles can be manufactured as one large piece, or as several small pieces which fit together.

What’s the Lattice Steel Tower?

Lattice steel towers are made up of many different steel structural components connected together with bolts or welded. Many different types of lattice steel towers exist. These towers are also called self-supporting transmission towers or free-standing towers, due to their ability to support themselves. These towers are not always made of steel; they can also be made of aluminum or galvanized steel.

Angular VS Tubular Comparison Table:

Angular Towers	Tubular Towers
Members are available in several steel grades	Better weight/strength ratio
Members are available in many sizes	Lower wind drag brings to smaller foundations
Material is usually less expensive	More efficient cross section for buckling
Available in 90° sections, can be bent to 60°	Less eccentric connections brings to smaller elements
Fabrication is less expensive (no welding)	Large variety of sizes
Transportation is more efficient (better weight/volume ratio)	Transportation is more expensive
All surfaces are exposed to the galvanization process	All tubes must be open ended to ensure complete galvanizing on the inside

Angular sections are preferred for most small towers with relatively light loads, mainly because of the wide range of sizes, simple connections and low manufacturing cost.

For bigger towers and heavier loads, tubular sections are becoming more useful and more economical. While the costs do differ from one telecom towers manufacturer to another, it is true that the cost of manufacturing is significantly higher, mainly because of the welding process, but the weight to strength ratio is much lower than in angular sections.

Kehang steel tower company’s products mainly include communication towers, radio towers, monopole, portable signal tower, Angular and Tubular Towers,camouflage tree tower, Telecommunication Tower, Communication Tower, Microwave Tower, Angle Steel Tower, Steel Pole,steel tower lightning protection and grounding devices, electricity power transmission tower and substation infrastructure etc.

? What’s the difference between Tubular Towers and Angular tower

Tubular Tower manufacturer for Communication and Transmission

What is the Tubular Tower ?

Tubular Tower, which belongs to the technical field of Tubular Tower, includes a work platform for connecting the tower body and the upper part of the tower body. Defines the bottom of the tower wall openings, which wall defines the position of the work platform openings, the antenna holder fixed to the working platform fences, wherein the connector body is provided by a column ladder main rod connected to the main pole and ladder provided The ladder formed by the crosspiece is fixedly connected with the supporting frame of the ladder main rod, and the supporting frame is screwed and matched with the connecting bracket arranged on the inner wall of the tower.

Design& Technics

(l)Full-stress analysis program Of steel towers,which assures precision Of internal force analysis & proper
(2) Design system of steel poles: Four—legs poles&Substation structure
(3) Advanced 3D substantiality lofting software-3D substantiality trial assembly With software,obtain drawings by Auto-cad. Net work With production workshop,lofting and manufacturing at the same time . assure precision and installation Of towers.

Product performance characteristics:

1. It is composed of a single steel pipe and accessories. The main material is generally made by bending the steel plate.
2. The cross-section of the tower body is round or polygonal, and the connection adopts inner flange, outer flange or plugging form, and the appearance is beautiful.
3. Tower ladders and rest platforms can be built in, and communication equipment can be installed in the towers with high security.
4. Design interior and exterior ladders for customers to choose.
5. Using internationally advanced design concepts and calculation methods, the slope of the tower body can be adjusted according to the geology and climate of the customer site.
6. Easy to install, safe, high precision, small footprint and easy location.

Specifications:

Height	5-100M
Wind Pressure	0-300 KM/H
Structure	Overlap Connection
Material	Q345B/A572, minimum yield strength >=345MPA; Q235B/A36, minimum yield strength>=235MPA
Details & Shape	Can be designed as per customer’s requirement
Good’s Description	Cable and Ladder can be assembled by customer’s request
Lifetime	20years
Main Pole Lifetime	More than 20 years
Barks	Hot Dip Galvanization and Special Tree Gluewater
Delivery Time	28 days after receiving deposit
Galvanizing Standard	EN ISO 1461,ASTM/A123 or equivalent
Working & Resting Platform Quantity	1-3 PCS
Antenna Support	3-18 PCS
Microwave Dish	3-18 PCS
Manufacturing and Workmanship	BS449 or AISC
Welding Standard	BSEN287, BSEN288 or equivalent
Nuts& Bolts	Grade 8.8
Spare parts	All Necessary parts, e.g. Antenna Mount pole and Brackets , Climbing Steps, Safety Guide Cable, Lightning Rod, Mounting bracket for Obstruction light,  Holding down bolts/nuts, and all other bolt and nuts required for erection and installation

Material Test:

1. All of our material are purchased from famous mill factory to assure the quality
2. A mill certificate issued by the mill factory with stamp and signature must be provided before unload the material in our factory; otherwise we have our reason to refuse the material.
3. Before put into production, all the material must pass the chemical and physical analysis to make sure that they have met the requested strength and component.

The single Tubular Tower includes a tower and a work platform connected to the upper part of the tower body. The antenna bracket is fixed on the fence of the working platform, and is characterized in that the ladder is composed of a ladder block connected to the main pole of the ladder and the main pole of the ladder. The main pole of the ladder is fixedly connected with the supporting frame, and the supporting frame and the supporting frame are arranged on the tower. The inner wall of the connection bracket is screw-fitted.

The advantages of a single Tubular Tower are:. The structure is simple and reasonable; the appearance is beautiful; the installation is easy to use and the floor area is smaller than that of the angle steel tower. In terms of safety, the angle tower is higher than the single tower tower, although the single tower tower is the protagonist. However, if the single-Tubular Tower is to achieve higher safety, only the rod diameter should be increased, the wall should be thickened, and high-strength steel should be used for the material. There will be high cost.

Tubular Tower manufacturer for Communication and Transmission

Steel 3 Legs Tube Tower

Four Legged Tubular Communication Tower

4 Legged Tubular Communication Tower are generally constructed with various sizes of angles for heights ranging from 45m to 106m. The structures are engineered and fabricated to accommodate heavy duty loading imposed from the attachment of microwave dishes and mounting of sector antennas. Besides, the towers are formulated to house a variety of accessories which include platforms, antenna bracket, lighting system, Climbing Ladder, Safety Cage, Cable Ladder, Utility Mounted Poles and ect. The recommend height of this structure is 45m, 60m, 91m and 106 meters and suitable for single/multiple operator usage

Material: Steel
Spare Parts: Parts for connection or installation
Height: 5-80m
Earthquake Intensity 8°
Optimal Temperature -35℃ To 45℃
Working & Resting Platform Quantity 1-3 PCS
Antenna Support 3-18 PCS
Microwave Dish 3-18 PCS
Nuts & Bolts Grade 8.8
Vertical Deviation <1/1000
Preservative Treatment Hot Dipped Galvanized /Painting For All Tower Steel Members, Guarantee Against Rusting For 50 Years
Main Function Supporting For Signal Transmission, Bracing for The Signal Transmitting Antenna

Excellent product, scientific management is the foundation of our company, technology, equipment and strong power is the root of our company to develop the enterprise, has the first-class tower automatic production line and advanced processing technology, and equipped with rational physical laboratory and universal testing machine, five chemical elements tester, spectrum analyzer, ultrasonic flaw detection instrument, coating thickness tester and other testing equipment, from raw material to finished products, has a perfect quality inspection system.

Four Legged Tubular Communication Tower

Four Legged Angular Telecommunication Tower

Tubular tower appeared year 2001 in China. The main pier is made from tubular, auxiliary part made from pipe and angel steel.
The advantage of tubular tower:
1. Reduce the weight by 10%–20%
2. Reduce the wind press of the tower
3. Larger 20% rotation radius than angel tower.
4. Larger load capacity than angel tower.
5. Reduce 10%–20% material
6. Shorten preiod install
7. Structure diversification

The shortage:1. More complex structure connection2. Slower efficiency in production

Height	From 10M-100M or according to client’s requirement
Material	Normally Q235B/A36,Yeild Strength≥235MPa
	Q345B/A572,Yeild Strength≥345MPa
	As well as Hot Rolled coil from ASTM572, GR65,GR50,SS400
Tolerance of the dimension	According to client’s requirement
Surface treatment	Hot-dip-galvanized following ASTM123, or any other standard by client’s requirement
Joint of Poles	Slip joint, flanged connected
Standard	ISO9001:2008
Welding Standard	AWS(American Welding Society)D 1.1
Production Process	Raw material test-cutting-bending-welding-dimension verify-flange welding-hole drilling-sample assemble-surface clean-galvanization or power coating /painting-recalibration-packages

Four Legged Angular Telecommunication Tower

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3Legged Tubular Communication Tower

3 Legged Tubular Towers are mainly fabricated with circular hollow sections which are specially designed to reduce the number of individual members. We strongly believe that less number of tower members means less fabrication time, less handling and storing problem, less erection time, less chances of misplacing, more efficient in term of man hour per tower, higher productivity with a very cost effective solution. The recommend height of this structure is 30m, 45m, 60m and 76m and suitable for either 1~3 operator usage.

Communication tower consists of tower body, platform, lightning rod, ladder, antenna support and other steel components, and by hot galvanized anti-corrosion treatment, mainly for microwave, ultrashort wave, wireless network signal transmission and transmission.
Products Name: Mobile Communication Tower
Application: Communication accessories
Height: 5-80m
Material: Q420/Q235/Q345 or customized
Minimum yield strength: 355mpa
Minimum ultimate tensile strength: 490mpa
Max ultimate tensile strength: 620mpa
Maximum Design Wind Speed: 30m/s
Spare Parts:All necessary parts, e.g. Antenna Mount Pole and Brackets, Climbing Steps, Safety Guide Cable, Lightning Rod, Mounting Bracket for Obstruction Light, Holding Down Bolts/Nuts, And All Other Bolt and Nuts Required for Erection and installation.

3Legged Tubular Communication Tower

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Telecommunication Monopole Antenna Tower

Monopoles

Length :From 20 to 56meter –

Matercial :ASTM A36; ASTM A572 –

deal: Hot dip galvanized Following ASTM A 123 or any other stardand by client required –

Packing: Plastic bubble , Mat &Straw Bale or following client required –

Structure: Self-supporting tubular towers, Broadcast & TV tower, microwave tower, roof top tower, watch out tower, medium wave tower –

Thickness: from 6 to 28mm –

Shape: polygonal(6 side,8 side,12 side,16 side) round tapered –

Easy install and maintenance –

baseplate ASTM A 633 GRE –

:Production process

material test → Cutting →Molding or bending →Welding (longitudinal )→Dimension verify →Flange welding →Hole drilling →Calibration → Deburr→Galvanization or powder coating, painting →Recalibration →Thread →Packages.

 

Telecommunication Monopole Antenna Tower

Telecom Tower Monopole

: Monopole Tower is a kind of tower that consists of one stem or one pole anchored to the ground. According to its cross-section, Monopole Tower is divided in to two types

.Cilcular-pole is a kind of monopole having a cross section/panel diameter similar from bottom to top

.Tapered-pole is a kind of monopole having a varied cross-section diameter size that when the used diameter is more up will be smaller

Specification of Telecom Tower Monopole

Material	Normally   Q345B/A572, Minimum Yield Strength ≥ 345 N/mm²Q235B/A36, Minimum Yield Strength ≥ 235 N/mm² As well as Hot rolled coil from ASTM A572 GR65, GR50, SS400
Suit for	Signal Transmission for Mobile Phone
Shape	Polygonal or Conical
Height	From 10 meter to 45 meter
Tolerance of the dimension	According to client’s requirement.
Surface treatment	Hot dip galvanized Following ASTM A 123, or any other standard by client required.
Joint of Poles	Slip joint, flanged connected
Standard	ISO 9001:2008
Length of per section	Within 14 meter once forming
Welding Standard	AWS (American Welding Society ) D 1.1
Thickness	1 mm to 36mm
Packages	Packing with plastic paper or according to client’s request.

Pipe Monopole Tower – Monopole Tower Manufacturers

.Kehang monopoles are single member self-supporting structures used in urban areas where space is limited
.We offer steel tapered, slip-sleeve monopoles or flanged pipe poles depending on your communication application

 

SLIP-SLEEVE

Designed to carry wireless and microwave communication equipment, our steel tapered monopoles are made of high-strength steel with minimum yield strength of 65 ksi. They are constructed of slip-sleeve tapered sections. Each order includes steel templates to assure proper base bolt alignment. Our monopoles have step bolt working rings at handhole levels and loop step bolts at all working points. They are available 12, 16, or 18-sided and in heights that meet your specifications. A factory-applied finish coat is available upon request

FLANGED PIPE POLES

In addition to providing slip-sleeve monopoles, Kehang offers pipe poles that are internally and externally flanged. Each order includes steel templates to assure proper base bolt alignment. Designed with safety in mind, we provide step bolt working rings at handhole levels and loop step bolts at all working points. Our flanged pipe poles are capable of carrying a variety of communication applications and custom-engineered to meet your height specifications

Light Standard Pole

The Light Standard Pole is a relatively small diameter CSA–S37 compliant pole that can be used to replace or augment light standards. Its height ranges from 14.9m to 18.6m (49 to 61 feet) and it is ideal for microcell densification projects

Micropole

The Micropole is a relatively small diameter, short CSA–S37 compliant pole that can be used where loading can accommodate outside mounted antennas. It ranges in height from 14.9m to 34.4m (49 to 113 feet) and is ideal for urban areas and medium–density sites.

.Kehang’s innovative micropole is helping our clients expand their urban networks

Mono–pine

Kehang’s Mono–pine is an innovative solution for wooded settings. It is a step–tapered pole ranging in height from 24.4m to 36.6m (80 to 120 feet), with artificial branches and needles covering the upper part of the pole. The Mono–pine is designed to blend into a forest and is virtually indistinguishable from the surrounding trees.

.Kehang’s innovative Mono–pine has made headlines in Ontario’s cottage communities

Rapid–Deploy Monopole

The Rapid–deploy Monopole is a temporary or permanent tower solution ranging in height from 10m to 18m (32 to 60 feet). It is a CSA–S37 compliant pole that can be installed in less than two days with a ballast design that eliminates any foundation requirements. It is ideal for microcell densification projects in urban settings for seasonal requirements.

Flag Pole

The Flag Pole has a circular face and constant diameter, which enables antennas to be mounted inside the pole, under the shrouding material. It ranges in height from 22m to 40.2m (72 to 132 feet) and is ideal for medium to high–density sites, where an unobtrusive appearance is required.

Standard Monopole

The Standard Monopole is a step–tapered pole ranging in height from 24.4m to 48.8m (80 to 160 feet). It has a small footprint, making it ideal for heavy–density or smaller sites and accommodates multiple panel and dish antenna installations

 

Pipe Monopole Tower – Monopole Tower Manufacturers

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Monopole tower communication pole tower

Steel Monopole Tower: We are profession in this type line of power tower from 10KV to 500kV; Communication Series Tower, stainless steel pipe&tube, steel pole tower, steel pole, Microwave Series Tower, Monopole Series Tower, Guyed Series Tower, substation structure, Lightning Protecting Series Tower, Radio Series Tower, Electric Power Series Tower, Street Light Pole Series Tower, made by our company can be widely used in army, post, telecommunication, mobile communication, radio and TV, etc

CLIMATIC CONDITIONS

Average grade of the atmosphere : Very heavily polluted, Humid and saline
Minimum ambient temperature : 100C
Maximum ambient temperature : 400C
Average ambient temperature : 340C
Relative humidity- maximum : 90 – 100%
Average Annual Rainfall : 1500-2500 mm
Maximum Wind velocity : 120km/hr. (33.3 m/s)
Isokeraunic level : 180 thunderstorm days
Seismicity Coefficient : 0.16
Altitude or Terrain : 0 – 500m a.s.l

 

Type	Steel tubular tower, Communication tower, Lighting rod tower, Radio and television tower, Electrified railway structure, Substation architecture Telecommunication tower
Material	Normally   Q345B/A572, Minimum Yield Strength ≥ 345 N/mm²       Q235B/A36, Minimum Yield Strength ≥ 235 N/mm² As well as Hot rolled coil from ASTM A572 GR65, GR50, SS400, or any other standard by client required.
Power Capacity	10~550KV
Welding	Welding complies with AWS D1.1 standard. CO2 welding or submerged arc auto methods No fissure, scar, overlap, layer or other defects Internal and external welding makes the pole more beautiful in shape If customers need any other requirements of welding, we also can make adjustment as your request
Galvanization	Hot dip galvanization in accordance with Chinese standard GB/T 13912-2002 and American standard ASTM A123; or any other standard by client required.
Joint	Joint with insert mode, flange mode.
Painting	According to clients’ request
Life Period	More than 25 years, it is according to installing environment
Certificates	ISO9001-2008 , Test report of 220kV Steel Tubular Tower & Transmission Line Tower 500kV, Certificate of Conformity of Factory Production Control from LIoyd’s Register, etc

TYPE OF MONOPOLE

Monopoles shall be self-supporting and galvanised tubular steel type with body extensions. The body extensions shall be applied on the slope so that legs are suited to the original slope of tower-site so that excessive land cutting around foundations and land collapse is prevented
.The following monopole types shall be designed for the project in order to meet various monopole positions and loadings economically