RailMac KM70 Standard Gauge 4-Axle
The KM70 hopper wagon, introduced in 2015 by CRRC Group, is a modern bulk freight wagon developed for heavy‑load and high‑speed railway transportation.
It adopts a compact and reliable structure with dual unloading systems: pneumatic and manual. It is ideal for large‑scale transportation of bulk cargoes like coal and ore, and widely used in ports, power plants, coal preparation plants and steel enterprises.
As part of SinoMac, RailMac provides full life‑cycle services for the KM70 wagon, covering design, power system supply, installation, commissioning, after‑sales training, spare parts supply, troubleshooting and overhaul technical support. These comprehensive services ensure high reliability, stable operation and long service life for the wagon during its entire service cycle.
Advantages of KM70 Standard Gauge 4-Axle
Built with 450MPa yield strength atmospheric corrosion-resistant steel for main bearing parts and a straight center beam design, it delivers exceptional structural stability and a 70-ton load capacity, ideal for heavy bulk cargo transport.
Optimized bottom door mechanism (based on mature top-lock structure) and E-grade steel 17-type coupler with MT-2 buffer ensure stable, durable operation, while K6/K5 bogies reduce wheel-rail forces and boost running speed to 120km/h.
Humanized auxiliary facilities (escalator, cornice) create a safer working environment for operators, and the hopper ridge pull rod device improves sidewall anti-rising performance, preventing structural deformation during transit.
Combining high load capacity, high-speed operation, and corrosion-resistant materials, this wagon offers long service life, low maintenance costs, and reliable performance across ports, power plants, and steel mill scenarios.
Technical Specifications
Model | Loading Capacity | Gauge | Axle Load | Max Speed Full Load | Loading Volume |
| KM70 Standard Gauge 4-Axle | 70 t | 1435 mm | 23 t/axle | 120 km/h | 75 m³ |
| K18AK 4-Axle | 60 t | 1435 mm | 21 t/axle | 120 km/h | 65 m³ |
| KM80 Standard Gauge | 80 t | 1435 mm | 27 t/axle | 120 km/h | 75 m³ |
| ——END—— | |||||
Main Parameters | |||
| Loading capacity | 70 t | Overall height | 3780 mm |
| Tare weight | 23.8 t | Gauge | 1435 mm |
| Axle load | 23 t/axle | Max speed (full load) | 120 km/h |
| Overall length | 14400 mm | Minimum radius of curvature negotiable | 145 m |
| Overall width | 3200 mm | ||
| ——END—— | |||
Q1: Do you have the design capability to provide customized railway vehicles?
A: Yes, we have a professional technical team and are familiar with international railway standards such as UIC, AAR, EN, etc. We are able to provide railway equipment according to customer requirements.
Q2: The Chinese railway gauge is 1435 mm, but the railway gauge in our country is 1000 mm. Will this be a problem for you?
A: Of course not, we are able to design railway vehicles with different gauges, such as 1435 mm, 1000 mm, 1067 mm, 1520 mm or other required railway gauges.
Q3: Compared with your competitors, why should I choose you?
A: Tieke Railway was transformed from China Railway Freight Car Factory in 2016. The company has more than 10 years of experience in railway vehicle manufacturing; now, as Tieke Railway is a private company with modern market management strategies, our services are flexible, considerate, and the cost is more controllable.
Q4: What should I provide to get your quotation?
A: You can send an inquiry with detailed drawings, product photos, detailed technical parameters or demand description. Complete demand input is very important for us to provide you with an accurate quotation.
Note: All Above Data are Just for Reference, All Data Might Change Without Notices or Updates, Please Contact Our Sales Team to Confirm All Details Via WhatsApp or Email.
Engine Sale Manual
Installation Drawing
Installation Manual
Operation Manual
Parts Catalogue
