Rail & Mining Car Couplers: Military-Grade Durability, Multi-National Standards, Heavy-Load Performance (Passenger/Freight/Mining)

Overview of Rail Car Coupler

This series of rail car couplers are core connection devices designed for railway transportation and heavy-load mining scenarios, focusing on mechanical structure stability, basic functional compatibility and full-condition durability. The products cover three major areas: passenger trains (EMU/urban rail), freight heavy-load, and mining locomotives. They support manual/semi-automatic coupling, are compatible with multi-national railway standards and special mining needs, and ensure train/mine car marshaling, traction transmission, longitudinal impact buffering and basic gas-electric docking functions. They are suitable for high-frequency, high-load transportation tasks in harsh environments.

Features of Train Coupler

Military-grade materials and structures

• Coupler body material（metal hooks）: high-strength low-alloy steel (such as Q345E, ASTM A572 Gr50), tensile strength ≥600MPa, yield strength ≥345MPa, impact resistance increased by 40%.
• Mining reinforced version: the surface of the hook tail frame and hook tongue is thickened with chrome plating (≥80μm), the wear resistance is increased by 3 times, and it is suitable for the dust and gravel impact environment of open-pit mines.

Multi-scenario compatible design

• Railway standard: compatible with mainstream railway coupler interfaces in many countries, supporting transnational intermodal transshipment.
• Mining customization: optional wide-body hook for mining (coupler tongue opening angle ≥ 110°), adapted to wide track gauge (1435-2000mm) and overload requirements (single hook load ≥ 350 tons).

Simple operation and safety redundancy

• Couplering mechanism: three-level locking structure (main coupler tongue + anti-unhooking coupler tongue + mechanical locking pin), manual couplering torque ≤ 60N·m, hooking success rate ≥ 99.5%.
• Anti-unhooking guarantee: The hook tongue pin hole is built with a double-row needle bearing to reduce hooking wear; the coupler tail frame is equipped with an anti-unhooking baffle to prevent longitudinal impact unhooking.

Technical Specifications of Train Coupler

Parameters	Railway general type (RT-15)	Mining reinforced type (MT-200)
Applicable speed	0-250km/h (railway)	0-60km/h (mining)
Maximum traction force	2500kN (longitudinal)	4000kN (longitudinal)
Maximum impact force	Compression 4500kN/tension 3500kN	Compression 6000kN/tension 5000kN
Hanging gap	≤10mm (vertical)	≤15mm (vertical, wide-body design for mining)
Vertical offset	±30mm (railway)	±50mm (for mining, adapting to complex terrain)
Weight	≤300kg (railway)	≤450kg (mining)
Working temperature	-30℃ to +60℃ (railway)	-40℃ to +80℃ (high temperature resistant coating for mining)
MTBF	≥80,000 km (railway)	≥2,000 hours (for mining, continuous operation)
Protection level	IP65 (railway electrical module)	IP67 (fully sealed, dustproof and waterproof for mining)

Core functions of Train Coupler

Mechanical coupling and locking

• Railway type: After the convex cone of the coupler tongue is engaged with the concave cone hole, the lock pin is manually inserted and rotated 90° to lock, and the coupling time is ≤15 seconds/section. Train connect and coupler railway.
• Mining type: The opening angle of the couplertongue is expanded to 110°, supporting blind coupling of mine cars at a slope of ±20°, and the width of the hook body is increased by 30% to resist lateral impact.

Buffering and vibration reduction system

• Railway standard version: rubber buffer + friction buffer combination, energy absorption rate ≥75%, impact attenuation time ≤0.8 seconds.

• Mining enhanced version: hydraulic buffer (optional) + rubber spring composite structure, adapted to high-frequency impact in open-pit mines (impact ≥200 times per shift)

Adaptability to extreme environments

• Railway type: coupler surface is galvanized + Dacromet coating, salt spray test ≥ 720 hours, anti-corrosion ability is improved by 50%.
• Mining type: The coupler body is fully sprayed with wear-resistant ceramic coating (hardness ≥ 9H), and the anti-gravel impact performance is improved by 200%; optional heating module, no jamming when connected at low temperature of -40℃.

Application scenarios of Train Coupler

Railway transportation
Intercity EMUs, heavy-load freight, and cross-border transport.
Mining transportation
Open-pit mines: Adapt to 220-ton mining dump trucks, and the impact resistance of the coupler body matches the violent bumpy working conditions of ore transportation after blasting.
Underground tunnels: Optional mining narrow-gauge couplers (gauge 900mm), with adjustable coupler height (400-600mm) to adapt to low tunnel operations.
Mixed deployment of multiple models: supports mixed deployment of mining electric locomotives, hydraulic support transport vehicles, and personnel transport vehicles, with a single-row load capacity of ≥5,000 tons.

Package of Train Coupler

Polybag+Carton box+Wooden case/Pallet, according to customer’s request

Company Profile

Luoyang Fonyo Heavy Industries Co., Ltd. was founded in 1998, covers an area of 72,600㎡, with more than 300 employees, 32 technicians, including 5 senior engineers, 11 assistant engineers, and 16 technicians. It has been rated as Luoyang Engineering Technology Center, Luoyang Technology R&D Center, and National High-tech Enterprise for many times.
Our production capacity is 30,000 tons per year. Currently, we mainly produce cast steel, cast iron (gray iron, ductile iron, etc.), processing of finished product and component assembly for locomotive,railcar,high-speed trains, mining equipment,wind power,etc.Our products have been exported to Russia, the United States, Germany, Argentina, Japan, France, South Africa,Italy and other countries.

FAQS

Q1: Are you a manufacturer or trading company?
A: We are a manufacturer. Our company was founded in 1998, with nearly 30 years in casting industry, a total area of 72,600㎡, with a factory building area of 51,000㎡.
Q2. What are your main products?
A: We primarily focus on steel casting, iron casting, finished product machining, and component assembly production for locomotive, railcar, high-speed trains, mining equipment, wind power,etc.
Q3: How precision can you produce casting parts?
A: We have the capability of producing casting parts with different casting processes. The production is strictly comply with ISO 9001, ISO 14001 and ISO45001,EN15085, IRIS.
Q4. Can you produce according to the samples?
 Yes, we can produce by your samples or technical drawings. We can build drawings for you after we get your samples too.
Q5: How do you do Quality Control before delivery?
A: Quality inspection is a very important factor to guarantee the quality of steel casting parts. We follow 3 times of inspection during the whole production process. And we will provide material testing report, dimensional testing report, and mechanical properties testing report to our clients before delivery.

It you are interested in any products,please feel free to contact us.
Contact: Stella Liu
Email:sales@railwaypart.com
Mobile:+8615515351287