DFF fastening Technical peculiarities :
- Driving speed: ≤ 250 km/h
- Axle load: ≤ 26 t
- Tension clamp: Skl 21
- Adjustability: height, gauge
- Elastic cellentic rail pad for less vibration and protection of the track
The DFF Fastening is a single support point with screw-dowel combination for anchoring on slab tracks, is based on the well-proven fastening solution W-Tram. A reinforced base plate offers a bigger surface for traffic load distribution: the system is able to withstand axle loads of up to 26 t and is therefore suitable especially for Metro and conventional rail projects.
Zhongbo Railway Fastening Company is a leading Chinese manufacturer of rail fastening and rail joint bar.
Zhongbo, as a specialized rail fastener manufacturer, provides a complete line of products, including rail fastening, anchor, rail joint, rail clip, rail screw, anchor bolt, rail clamp plate, rail fishplate, and fishplate bolt for connecting rail tracks.
We also make rail fastenings for crane rail and elevator guide rail, along with other related products. We manufacture according to GB/TB (Chinese national standards and railway standards), AREA, UIC, BS, DIN, ASTM, and AS standards.
Our products are mainly made through hot forging.
The threads of rail screw spikes are made by hot rolling with special threading machines.
We produce metric threads, BS, BSW, TR thread, or round threads.
Our high strength bolts come in different specifications of Class 4.8, 4.6, 5.6, 5.8, 6.8, 8.8, 10.9, and 12.9. A variety of non-standard fastening is also available. We can customize our products using customer drawings or samples as well.
rail fasteners
rail fasteners
rail fasteners with rail clip
Our products are performing widely in more than 50 countries in the world, for exporting, there are mainly divided four areas as below:
America mainly in USA and, Canada, Mexico and Brazil:
We supply E type rail fastening, W14 rail fastening systems, rail clips to metro, tramway fastenings, crane rail clips, track bolts and joint bar for rail connection, screw spikes, tie plates and concrete rings connection bolts for tunnels. They are mainly according to standards of AREMA, IFI, ASTM, UIC and other specifications from clients.
West Europe and Africa areas mainly in Spain, German, South Africa and Nigeria:
We supply W rail fastening systems, spring blade fastening systems, KP fastening system, metro rail fastenings,fish plates and fish plate bolts, sleeper screws, lock spikes, spear bolts for tunnels etc. They are manufactured to standard of UIC, NF ,DIN, BS and other specifications requested by clients.
East Europe and Mid-Asia area mainly in Russia, Kazakhstan, we supply:
W rail fastening systems, KP fastening system, rail joint bars and track bolts, track spikes and tie plates to this area. We manufacture and supply according to standard GOST, UIC, DIN and other specifications requested by clients.
Australia and Southeast Asia area mainly in Australia, Thailand, we supply:
E type rail fastening, W rail fastening, heavy haul rail fastenings, metro rail fastenings,fishplate and bolts, track spikes, turnout accessories, concrete ring connection bolts etc. We manufacture and supply according to standard BS, AS, JIS, UIC and specifications requested by clients.
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