I. Core Advantages: Dual Lithium Battery Power + Professional Anchor Modification, Reconstructing Sleeper Maintenance Efficiency

1. Dual Lithium Battery System, Freeing You from Scenario Constraints
Equipped with two 8.0Ah-10.0Ah high-capacity lithium iron phosphate batteries, supporting hot-swappable alternating use, completely eliminating the reliance on cables in traditional wired anchor modification machines, adapting to power-free operation scenarios such as railway mainlines, tunnels, and bridges; a single battery can complete 20-30 sets of sleeper anchor modification operations on a full charge, with dual battery life covering 80-120 sets, meeting the needs of high-intensity daily maintenance; equipped with 60-minute fast charging technology, it can be fully charged in 1 hour after a power outage, ensuring the continuity of emergency repair operations. 2. Precise anchoring capability, adaptable to multiple types of sleepers. The power core uses a 1200W-1800W high-power brushless motor with a speed of 400-1000r/min and a torque output range of 50-300N・m. Combined with a dedicated anchoring drill bit and anchoring components, it can precisely adapt to the anchor replacement and reinforcement of concrete sleepers (Type II and Type III) and wooden sleepers. The anchoring hole diameter covers 16mm-32mm (mainstream sleeper anchor specifications), and the anchoring depth adjustment range is 50mm-200mm, with an error controlled within ±1mm, avoiding excessive drilling that could damage the sleeper structure (a single sleeper can cost over a thousand yuan). 3. Portable and efficient design, reducing work intensity. The body is made of aerospace-grade aluminum alloy and high-strength engineering plastic composite material, with a total weight of only 10-15kg. Compared with traditional pneumatic anchor re-modification machines (20-30kg), the weight is reduced by 50%, and a single person can complete the entire process of handling, positioning, and anchor re-modification. Some models support a folding handle design, which reduces the volume by 40% when stored, making it convenient for transportation and storage in railway inspection vehicles and emergency rescue vehicles. A single anchor re-modification operation only takes 3-5 minutes (including drilling, hole cleaning, and anchoring), which is more than 3 times more efficient than manual anchor re-modification (15-20 minutes/set). II. Technical Highlights: Professional Configuration Enhances Sleeper Maintenance Advantages

1. Anchor Modification and Hole Cleaning System Adapted to Sleeper Anchoring Characteristics

Drill Bit Technology: Utilizes tungsten carbide alloy coated anchor modification drill bits with a hardness exceeding HRC65, offering excellent wear resistance. A single drill bit can continuously drill 30-50 holes (depending on the strength of the sleeper concrete); equipped with a quick-change drill chuck, drill bit replacement can be completed in 20 seconds without additional tools;

Hole Cleaning Design: Features a built-in high-pressure airflow hole cleaning system that automatically sprays high-pressure air after drilling to thoroughly remove concrete debris and dust from the hole (cleaning rate up to 99%), preventing residual impurities from affecting anchoring strength; some high-end models are equipped with a vacuum dust collection device to reduce dust pollution and meet environmental protection requirements. 2. Dual Lithium Batteries and Safety Protection for Complex Railway Working Conditions
Battery Performance: Lithium iron phosphate battery with a cycle life of ≥2000 cycles, supporting stable operation in extreme environments from -25℃ (high-altitude cold regions) to 60℃ (high-temperature tunnels), with excellent vibration resistance (able to withstand bumpy transportation along railway lines);
Multiple Protections: Equipped with four safety mechanisms: overload protection (automatic shutdown when torque exceeds rated value by 120%), over-temperature protection (alarm when motor temperature ≥75℃), anti-jamming protection (power cut-off when speed drops suddenly), and leakage protection (insulation resistance ≥1MΩ);
Environmental Adaptability: The machine body has an IP55 protection rating, dustproof, waterproof, and splashproof, and can operate normally in rainy weather, humid tunnel environments (relative humidity ≤95%), and dusty environments along railway lines; equipped with a safety lock trigger, requiring simultaneous pressing of the lock button and trigger to start, preventing accidental operation. 3. Humanized and intelligent design enhances operational convenience. Ergonomics: Features a two-way anti-slip grip (soft rubber material + anti-slip texture), improving grip comfort by 40% and significantly reducing hand fatigue during extended work (over 4 hours); the machine body is equipped with adjustable support feet to adapt to different sleeper heights (150mm-300mm), ensuring more stable positioning. Intelligent monitoring: The LCD high-definition display shows real-time parameters such as remaining battery power (percentage), drilling speed, anchoring depth, and cumulative number of operations, providing clear information; supports Bluetooth connection to a mobile APP, recording data such as location (GPS positioning), borehole diameter, depth, time, and operator for each anchoring operation, facilitating traceability and management by railway maintenance departments. III. Typical Application Scenarios: Focusing on All Scenarios of Railway Sleeper Maintenance

1. Mainline Railway Sleeper Maintenance
Suitable for re-anchoring operations on loose or damaged sleeper anchors in conventional and high-speed railways, as well as sleeper anchoring and reinforcement during major and medium-scale line maintenance; the cordless design eliminates the need for cable deployment, enabling rapid response to dispersed operation needs along the line, reducing construction preparation time by 70% compared to traditional equipment.

2. Urban Rail Transit Sleeper Maintenance
Used for re-anchoring operations on sleepers in tunnels and elevated sections of subways, light rail, and suburban railways; the compact body (length ≤70cm) is suitable for the narrow spaces of tunnels (minimum working space ≥100cm×60cm), and the low-noise design (working noise ≤88dB) meets urban construction environmental protection requirements, avoiding disturbance to residents. 3. Switch Area Sleeper Re-anchoring: Sleepers in switch areas experience complex stresses, and anchor bolts are prone to loosening and damage. The precise positioning function of the re-anchoring machine ensures a perfect fit between the anchor hole and switch components. Its efficient operation shortens the re-anchoring time for a single set of switch sleepers by 1-2 days, reducing line closure time.
4. Railway Bridge and Tunnel Section Operations: Suitable for re-anchoring and maintenance of bridge-bearing sleepers and tunnel sleepers. Lithium-ion battery drive eliminates the need for external power (power is difficult to obtain for bridges and tunnels). Vibration-resistant design prevents operational vibrations from affecting the stability of the bridge structure. Dustproof and waterproof performance is suitable for the humid and dusty environment inside tunnels.
5. Emergency Rescue and Dedicated Line Maintenance: Addresses sudden faults such as broken sleeper anchor bolts and loose sleepers, quickly re-anchoring and reinforcing them to buy time for line restoration. It is also suitable for sleeper maintenance on industrial and mining railways (such as coal mine and port dedicated lines) and heavy-haul railways, meeting the demands of high-intensity operations. IV. Selection Guide: Choose Railway Sleeper Re-anchoring Equipment According to Your Needs

1. Priority of Core Parameters (Sorted by Importance)
* Anchoring Specifications: For routine operations, select 16-32mm hole diameter and 50-200mm anchoring depth; for heavy-haul railways, select 20-32mm hole diameter and 100-200mm anchoring depth.
* Motor Power: For conventional/urban rail, select 1200-1500W; for heavy-haul/high-intensity operations, select 1500-1800W.
* Battery Configuration: Prioritize dual 8.0Ah or higher capacity, supporting fast charging and low-temperature adaptability (operable at -25℃).
* Positioning and Depth Accuracy: Positioning error ≤ ±1mm, anchoring depth error ≤ ±1mm, with depth limit locking function.
* Protection Rating: At least IP55; IP65 is recommended for tunnel/rainy weather operations. Upgraded version; Accessory compatibility: Supports multiple specifications of anchor drill bits and anchoring components; the brand can provide sleeper-specific accessories. 2. Brand and scenario compatibility recommendations Industrial-grade first choice (mainstream procurement in railway systems): CRCC Heavy Industry: Leading manufacturer of railway-specific equipment, adaptable to heavy-haul railways and high-speed rail scenarios, supports customized functions, and provides CRCC certification (mandatory certification for railway products); CRRC Times Electric: Matches high-speed rail sleepers, high anchoring accuracy, and data can be connected to the railway operation and maintenance platform; Cost-effective choice (engineering teams, repair shops): Bosch (GCM 18V-EC 32): Industrial-grade quality, adaptable to conventional railways and urban rail, with a dense after-sales service network; Makita (DHR400Z): Lightweight design, suitable for daily maintenance and emergency repairs, with strong battery versatility; Key points for selecting niche brands: Must provide CRCC certification, battery warranty ≥2 years, accessory compatibility proof, and prioritize brands that can provide on-site calibration services. V. Usage and Maintenance Techniques: Extending Equipment Lifespan and Ensuring Operational Safety

1. Correct Usage Specifications

Preparation Before Operation:

Clean oil stains and concrete debris from the sleeper surface to ensure accurate positioning;

Calibrate the concentricity of the depth limit device and drill bit (error ≤ 0.05mm), and check the battery power (≥ 50%) and the air pressure of the hole cleaning system;

Select the appropriate drill bit (tungsten carbide alloy drill bit for concrete sleepers) according to the sleeper type and anchor bolt specifications, and tighten the chuck after installation;

Operating Procedure:

Fix the equipment support feet onto the sleeper, adjust the positioning device to align with the anchor modification mark, and lock the fixing mechanism;

Start the hole cleaning system for pre-purging, and after confirming normal airflow, press the safety lock + trigger to start drilling;

After drilling to the preset depth, the equipment will automatically stop, and the hole cleaning system will be started to thoroughly remove impurities from the hole;

After completing the hole cleaning, inject the anchoring agent and install the anchor bolts. After every 5 consecutive anchor modifications, stop the machine to allow it to cool down. Minutes; Safety Precautions: Wear safety goggles (to protect against flying concrete debris), cut-resistant gloves (to protect against sleeper burrs), and a dust mask (to prevent dust inhalation); Do not modify anchors in cracked or damaged sleeper areas, as this may worsen sleeper damage; If the drill gets stuck, immediately release the trigger, turn off the power, and use a wrench to rotate the drill bit in the opposite direction to remove it. Do not attempt to restart it. 2. Daily Maintenance Points
Drill Bit and Anchoring Component Maintenance:
After operation, clean residual concrete debris from the drill bit with a wire brush and apply anti-rust oil (for long-term storage);
Replace the drill bit promptly when the drilling speed decreases by more than 20% or irregular patterns appear on the hole wall;
Regularly check the sealing of the anchoring components to prevent anchor leakage from affecting the working effect;
Battery Maintenance:
Store in a dry and ventilated environment (temperature 0-30℃), avoid mixing with metal objects (to prevent short circuits);
If not used for a long period (more than 1 month), fully charge before storage, and recharge every 3 months (maintain 50%-80% charge);
Do not charge in high temperature (≥60℃) or low temperature (≤-25℃) environments to avoid battery bulging;
Machine Body and Hole Cleaning System:
Clean the machine body heat dissipation holes and hole cleaning nozzles weekly (use compressed air to blow away dust), and check for air leaks;
Check the wear of the motor carbon brushes monthly (wear exceeding 1/2). Replace the air source filter element of the cleaning system regularly; Regular calibration: Calibrate the depth limit accuracy and torque sensor every 3 months (contact the brand's after-sales service or a third-party organization); Conduct a comprehensive inspection annually (motor power, battery capacity, anchor modification accuracy) to ensure the equipment meets operating standards.