Electric Locomotive

Equipped with AC-DC transmission, DF8D is a main line freight diesel locomotive. It can meet the needs of heavy load at high speed on busy main line.

The diesel power drives a three-phase AC synchronous traction alternator to generate three-phase alternating current. Through rectifier, the current is fed to the traction motor which then drives the wheel sets through traction gears.

The running gear of the locomotive consists of two exchangeable three-axle bogies, where a low four-rod mechanism traction and side bearings of rubber pads are adopted. Journal box springs and side bearings form a two-stage suspension. The traction motor is suspended from the axle of the wheel set. Type JZ-7 brake equipment is used for the braking system, which makes it possible to brake the locomotive independently or together with the whole vehicles trailed. Electric resistance brake can also be applied on long down gradient.

Main specification info,

CRV Group:

We are the rail vehicle and fittings supplier appointed by Chinese Ministry of Railways, providing various spare parts and fittings with ISO 9001:2008 Quality System authentication, China Railway Construction Corporation (CRCC) certificate, AAR and UIC standard parts.

What We Mainly Supply:

The company has been devoting itself to designing and manufacturing trains for 1000 mm, 1067 mm, 1676 mm meter-gauge railways and Russian 1520 mm rail gauge. Presently, the company has designed and developed open-top wagon, tank wagon, flat wagon, hopper wagon, grain wagon and covered wagon applicable to countries in Central Asia, South Asia and Africa; open-top wagon, hopper wagon and sulphur tank wagon applicable to countries like Sudan and Indonesian; grain hopper wagon applicable to Australia; cement tank wagon, flat wagon, timber wagon and sugar-cane wagon applicable to Southeast countries, and some products have been exported to the above stated countries.

There are other railway vehicle manufacturers, but the advantages of our products are good quality and economical price. And these will help our partner lower the cost of railway manufacture. Besides our perfect and timely after-sale service is another guarantee for our future cooperation. And we believe that our cooperation will be helpful in accelerating your company's development.