Tower crane

general introduction of tower crane with top standard machanism and national large-scale steel

please select products according to the following technical parameters:

raw material control

a,The steel material selected 100% comes from our national large-scale steel corporations.

b,The critical materials of steelwelding material etc are all examed by chemical detection, then allowed into workshop for batch production.

c,Strictly according to drawing draft requirements, we make the products with 16 Manganese40 Chromium and 45# steel etc.

d,Every parts of our products: pin axlesleeve etc are strictly according to quenching and tempering procedure.

e,Every parts of our products are strictly according to the procedure requirements: millplanepolishpresstest etc.

f,As for final products, we are strictly according to The ISO9001 Quality System requirements and national standard.

general introduction of tower crane main mechanisms.

a,Raw material main material of tower crane body and tower-cap are 16 Manganese Q345B. Steels are selected from Shanghai Bao Steel Group heavy wall seamless steel pipe.

b,Hoisting mechanism: Jiangte and Boshan brand provided by national level manufacturer: Eddy current brakefour-speed winding hoisting.

Tower crane below TC4708 is three-speed hoisting mechanism.

c,Slewing mechanism: equipped with four-speed winding.

d,Luffing mechanism: cone rotor motor, neednt to refuel gear lubricant oil or maintenance, double-satellite reducer

e,Electrical apparatus system: main contactor: Tianshui 213 Weaponry Industry Machine Plant and Schneider. Operating system is high-quality product (Schneider integrated pellet), durable in use.

f,Welding: carbon-dioxide shield welding and automatic submerged arc welding. Feature: technologically advancedstrong connectivity.

g,Driver cab: arc space capsule, toughened glass, wide field of vision, clear and safe.

h,Half basic mast section: square strengthened steel, repeatedly applicable, convenient in tower crane displacement. Lower in cost. (TC5015,TC5613)

i,Basic mast section: 10 meters in length, strengthened bolted with 10.9 grade high-strength bolt. each mast section with 12 bolts.( common manufacturers adopt 8.8 grade)

Other assembly

a,All hoisting mechanisms are equipped with steel wire rope wringing devices.

b,Tip of lifting boom is equipped with anti-wringing devices.

c,Overall structure is strengthening style, 3-3.5 T heavier than same style of other manufacturers.

d,All the pins and axles are treated by polishingrust-removing and galvanizing.

e,Slewing body and mast sections are double-milled, horizontally flat, good stability, low bear cost, durable in usage.

f,Safety devices are provided by Guiyang Electrical Control Company, top-level in domestic market.

g,Luffing mechanism drum is designed with rope groove. Feature: not easy to wring or quench.

tower crane with top standard machanism and national large-scale steel ,raw material control ,durable in use.