Rail milling cutter
The necessity of rail milling: > Able to meet the railway smoothness requirement ≤0.2mm/m > Able to improve the shortcomings of low transmission grinding operation efficiency and environmental pollution, especially suitable for implementation in the closed environment of the subway. > Rail milling operation has high repair efficiency and no pollution.
Key words:
Classification:
Key words:
Tool matrix-Fixture matrix
Product Description
1. Development Background
The Speed History of China's High-Speed Rail: 200→ 250→ 300→ 380 km /h; In order to ensure to ensure the safe operation of high-speed rail ， the requirement for the rail unevenness per meter must not exceed 0.2 mm ； Under high-speed and heavy-load long-term operation, railways will experience Under high speed, fat edges, rail top surface scuffing or peeling, side wear, fish scale patterns, and other defects.
Rail defects change the normal wheel-rail relationship , seriously affecting train vehicle operational stability, passenger comfort, and driving safety.
By the end of the end of 2022 , the national railway operating mileage reached 155,000 kilometers , including high-speed rail over 42,000 kilometers, with 4,100 kilometers of new lines put into operation, including 2,082 kilometers of high-speed rail. There is a strong need for railway rail defect removal and maintenance.
The necessity of rail milling
> can meet the railway smoothness requirements ≤0.2mm/m
> can improve the shortcomings of low transmission grinding operation efficiency and environmental pollution disadvantages , especially suitable for implementation in the closed environment of subways
> Rail milling operation has high repair efficiency , no pollution
Subway Rail Milling Vehicle
2. Product Introduction
Application
Profile accuracy: ±0.2mm
Radial runout: ±0.02mm
Cutter diameter : 1100mm
Cutting parameters:
1. Maximum cutting depth: 0.3-0.5mm
2. Linear velocity: 120-180m/min
3. Feed rate: 1.8km/H
Advantages
1. High-quality special steel, special surface treatment, makes the cutter head can work stably for a long time.
2. Optimized design, uniform control of the cutting force of each set of blades , Increase blade life.
3. Excellent processing technology and reliable processing equipment, Blade runout control 0.02mm within, high surface quality No secondary processing is required.
4. Higher processing efficiency, in a limited construction window Longer processing distance.
5. Small environmental impact, will not cause iron filings and dust pollution Long tunnel processing without downtime.
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Nanjing Arrow-Stone Industry Co. ,Ltd
Telephone: 86 025 84958290
Address: No. 105, Building 8, District 8, Lingxin Market, Jiangning District, Nanjing