Structural GR50 500KV S355JR Lattice Transmission Tower

Low Alloy High Strength Structural Steel Electricity Transmission Towers

1.    Production decription

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

All towers manufactured and design shall be generally in accordance with latest revision of the following standards except where specifically directed otherwise.
General
IEC 60826 - Design criteria of overhead lines
IEC 60652 - Loading tests on overhead line structures
ISO 1459 - Metallic coatings - Protection against corrosion by Hot Dip Galvanizing
ISO 1461 - Hot dip galvanized coatings on fabricated iron and steel articles
ISO 12944 - Paint coatings, corrosion protection, and structural steelwork
ISO 898-1 - Mechanical properties of fasteners. Part 1-Bolts, Screws and studs
ISO 630 - Structural Steels - plates, wide flats, bars, sections and profiles
ISO 657 - Hot rolled structural steel plates tolerances on dimensions and shape
ISO 7411 - Hexagon Bolts for high strength structural bolting with large width across flats
ISO 657-5 - Hot rolled Structural Steel Sections equal and unequal leg angles
ISO 7452 - Hot rolled structural steel plates tolerances on dimensions and shape
BS EN 50341-1 - Overhead electrical lines exceeding AC 45kV -General Requirements
BS 8004 - Code of Practice for Foundations
BS 8110 - Structural use of concrete
ANSI10-97 - Design of latticed steel transmission structures
IEC 60050 (151) International Electro-technical Vocabulary
Part 51 Electrical and Magnetic Devices
IEC 60050 (601) Chapter 601: Generation, transmission and distribution of electricity-General
IEC 60050 (601) Chapter 601: Generation, transmission and distribution of electricity-Operation
IEC 60059 IEC standard current ratings

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

5.    Hot dip galvanization and painting

6.   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.

7. 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 .