Grade 50 100m ASTM Double Circuit Transmission Tower

Transmission Line Double Circuit Tower

1.    Production decription

Transmission towers support the high-voltage conductors of overhead power lines, from the generating station switchyard right up to the source substations and satellite substations located near populated areas.

Their shape, height and sturdiness (mechanical strength) depend on the stresses to which they are exposed. Towers do not transmit electricity themselves unless lightning strikes the ground wire strung along the top of the structure. This cable is designed to protect conductors by allowing lightning discharges to reach the ground through the tower.

Steel Grades
              Main legs: Chinese steel Q355B, which same to ASTM A572 GR50

               Other members , bracing and not stress plate and angle steel: Chinese Q235B, which same to ASTM A36
 

               Plates: Chinese steel Q355B, which same to ASTM A572 GR50
 

Bolts: Chinese grade 6.8 and 8.8, which similar to ASTM A394

A) Dimension and tolerance for angle are according to GB/T1591-1994

B) Hot dip galvanization in accordance with GB/T 13912-2002, which similar to ASTM A 123

C) The welding will be performance in accordance with AWS D1.1 or CWB standard

Certificate

Type test 

2.  Product capacity

We have 5 auto production line for electric angle steel  towers Manufacturing,We can supply 3000 tons angle steel tower

every month .Else we have enogh site for installing more production line if needed.

We also have plasma cutting machine ,14m bending machine and auto welding machines for pole towers .

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​3.  Technical support

Our engineer and drawer has lots of designing ,lofting experience of lattice steel towers .

Which we can supply a overall solution of all the towers .

4.   Quality control

We have very strict quality control in every steel towers .

                    Material incoming control:chemical and physical test

                                   Zinc coating thinkness inspection

We usually has two ways of trial assembly for lattice steel towers : trial assembly before galvanzation

and after galvanization.

6.    Hot dip galvanization and painting

7.   Package and delivery

Package we usually do as our clients requirment .Usually for angle steel towers,We use steel wire to make it into bundle and use special material to protect the Zinc.

8. Company introduction

Qingdao Liangta Steel Structure Co., Ltd. ,established in year 2009,is a leading professional manufacturer in the field of transmission steel towers (the voltage up to 1000kv), telecommunication towers, monopoles, substation structures and rooftop towers. We also supply steel profile products as per customers 'requirement.

The factory located in Jiaozhou bay of Qingdao, covered an area of over 60,000 square meters with an annual production capacity 40,000 tons.

Location:
Less than one hour drive from Qingdao International Airport, 1 hour drive from Qingdao sea port.

• Qualification Certificates:
• -Environmental Management System Certificate: ISO14001:2015
• -Quality Management Systems Certificate: ISO9001:2015
• -Established Occupational Health and Safety Management Systems Certificate: OHSAS 18001:2007

We also have many experiences of foreign projects, like Philippines, Myanmar, Iraq, Mauritania and so on.

Welcome to contact us ,we make sure your every question will be answered in time .