Electrical Rail Drilling Machine

Product Parameters

DC Motor Power: 1.2 kW

DC Motor Voltage: 36 V

Speed Range: 250–400 rpm

Drill Bit Diameter Range: Φ9.8–Φ36 mm (±0.25 mm tolerance)
(Standard equipped: Φ31 mm)

Drilling Time: < 120 seconds

Drilling Stroke: ≥ 40 mm

Applicable Rail Types: Suitable for 43–75 kg/m rails and various special-shaped rail profiles
(Standard equipped for 50–60 kg/m rails)

Total Weight: 18.2 kg

Main unit: 11.9 kg

Battery: 4.7 kg

Positioning gauge: 1.6 kg

Overall Dimensions: 530 × 270 × 410 mm

Product Pictures

Product Advantages

The railway electric drilling machine is a specialized device commonly used in railway maintenance and construction, primarily designed for drilling holes in steel rails to install clamps, connectors, and other components. Its advantages are mainly reflected in the following aspects:

●Efficient Operation: Electric drilling machines are powered by electricity, offering fast start-up and high drilling efficiency. Compared to traditional manual or combustion-powered methods, they significantly reduce operation time and enhance the progress of railway construction and repair work.

●Ease of Operation: These devices are typically designed as handheld or portable units, featuring lightweight and compact structures. This makes them easy to use in confined or elevated work environments, reducing the physical strain on workers.

●Stable Precision: Equipped with guiding devices and stable bases, electric drilling machines ensure accurate hole positioning and uniform bore diameters, minimizing errors and improving the safety of rail connections.

●Environmentally Friendly and Energy-Efficient: As electrically powered equipment, they produce no exhaust emissions and generate lower noise during operation, meeting environmental requirements for railway work. Additionally, electricity costs less than fuel, making them more economical for long-term use.

●Safety and Reliability: Many models come with safety features such as overload protection and automatic shutdown, enabling stable performance in harsh railway environments and reducing operational risks.

Product Components

●Power System: Typically powered by lithium batteries, featuring removable battery packs for continuous multi-hole drilling. This design enables zero carbon emissions, low-noise operation, and extended working time without external power sources.

●Clamping and Positioning Mechanism: Includes the main base and battery pack guide base, with V-shaped clamping blocks adaptable to different rail specifications (e.g., 50 kg, 60 kg rails). Positioning accuracy can reach ±0.5 mm.

●Drilling Mechanism: Comprises the drill bit assembly, gear reducer, and transmission system. Drill bits are quickly installed via a quick-change mechanism (e.g., spring-lock type), compatible with Φ12–Φ32 mm twist drills. Power is transmitted from the motor through the reducer to the spindle, driving the drill bit rotation.

●Feed Control Mechanism: Utilizes rack-and-pinion transmission paired with a bidirectional hydraulic damping device to achieve a precise feed rate of 0.1 mm per revolution, ensuring accurate drilling depth control.

●Cooling System: For water-cooled models, this includes a guide water sleeve and copper nozzles, with manual pump control of cutting fluid flow to reduce drill bit temperature. Some models may employ air cooling or other cooling methods.

●Torque Transmission System: Consists of a planetary gear set and bevel gear set forming a three-stage speed reduction structure, with a maximum output torque of 120 N·m, improving transmission efficiency by 40%.

Product Applications

●Line Construction and Track Laying
During the construction of new railway lines, rail drilling machines are used to drill bolt holes for connecting and securing rails. Such operations require high-precision positioning to ensure the accuracy of track geometry.

●Routine Maintenance and Repairs
Railway maintenance departments regularly use drilling machines for track inspections, such as replacing worn components or adjusting track structures. The equipment must be adaptable to fieldwork environments, with some models (e.g., those powered by internal combustion engines or lithium batteries) capable of flexible use in areas without power sources.

●Emergency Response Operations
Following disasters or malfunctions, drilling machines are employed to quickly drill holes for installing temporary reinforcements (e.g., anchor rods) to restore line operability. For instance, in slope support or subgrade reinforcement, drilling machines can create anchoring holes to enhance stability.

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