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C70A open-top railway wagon

C70A open-top railway wagon

Introduction: This open-top wagon for transporting coal is applicable for Chinese standard track gauge railways, adapted to the task of using tipper to unload. This type of wagon is composed of wagon body, coupler and draft gear, brake and bogie, etc. The car body is of all welded steel structure. The car body consists of under frame, side wall , end wall, door etc. For the main profile steel and plates, anti-corrosion high strengh steel alloy Q450NQR1 is used. 2 sets of wagons can compose a group through traction bar device, which can be interchanged with Type 16 or Type 17 interlocked coupler. The traction bar device also can be changed to type16 or type 17 interloacked coupler. MT-3 type buffer is used. Brake device includes 305mm brake cylinder with integrated flow spinning seal, type 120 control valve, type ST2-250 double-direction automatic slack adjuster, type KZW-A bare/heavy car automatic adjuster, compacting fast-installed hose connector and type NSW hand brake. Type K6 bogie is used.

Overview

The latest technology to meet the requirements of railway car policy to meet the business needs of the railway-owned trucks, and for the Shenhua Group developed a special 70t grade coal railway wagon - C70A-type coal car.

The car used in the national CTT C70 railway wagon car on the basis of the vehicle length, height and other technical parameters were improved design and use of sophisticated high-strength structure and advanced technology design and the existing railway wagons, effectively extending the car each life of components, thus greatly reducing vehicle maintenance, overhaul costs. Meanwhile, the car is also designed to take full account of the existing requirements Shenhua lines, bridges, locomotives and cargo handling equipment, and fully meet the country's own railway line for the Shenhua Group's operations.

The car uses 16 type 17 type rotary coupler and fixed coupler, can achieve without uncoupling continuous unloading, unloading improve efficiency, but also reduces the coupling coupler gap. When a group of two middle when equipped with a 16,17-type coupler with interchangeable drawbar, further reducing the vertical impulse train and improve the reliability of the vehicle even hang. Using new epoxy micaceous iron rust primer and epoxy glass flake paint, improved body corrosion resistance. Using K6 bogie, improve vehicle dynamics performance to meet the requirements of commercial operation speed 120km / h in.

Application

The car has been transferred to the Ministry of Railways presided Beijing February vehicle factory ten truck manufacturers, and complete production. In 2006, Shenhua Group bidding to all road C70A-type coal car totaled 4000. Since the use of the car, running well, greatly improving the efficiency of Shenhua's coal transportation, praised by users.

In 2007, the car comprehensive technical and economic indicators have reached the international advanced level of similar products, and access to China North Vehicle Group Technology Achievement Award.

Main technical parameters

Loading capacity(t)	70
Tare weight(t)	<23
Axle load(t)	23t+2%-1%
Volume(m3)	80.5
Special volume(m3/t)	1.15
Coefficient of tare weight	0.328
Load per meter of track(t/m)	<6.77
Commercial operation speed(km/h)	120
Height of car barycenter	1020
Minimum radius of curvature negotiable(m)	145
Length of vehicle(mm)	13726
Specific length of car (mm)	9210
Max width of car at side post(mm)	3184
Max height of car(mm)	3313
Inside length of car body(mm)	12190
Height width of car body(mm)	2974
Inside height of car body(mm)	2220
Height of coupler center line from rail top(mm)	880