The Elektrotor RD series comprises medium-pressure blowers designed for various industrial applications, offering robust performance and a range of configurations to suit diverse operational needs. These blowers are primarily used for conveying gaseous media, with specific models optimized for different flow rates and pressure requirements.
Function Description
The RD blowers operate by drawing in air or other gaseous media and increasing their pressure before discharge. This process is facilitated by a motor-driven impeller housed within a robust casing. The design ensures efficient air movement, making them suitable for applications such as ventilation, material transport, and process air supply. The blowers are designed for continuous operation, with a focus on reliability and longevity.
Important Technical Specifications
The RD series offers a wide range of models, each with specific performance characteristics. Key technical specifications include:
- Motor Output: Ranging from 0.04 kW to 26.50 kW, accommodating various power requirements.
- Voltage: Typically 230/400 V or 400/690 V, 3-phase, 50 Hz, with some models supporting 60 Hz operation.
- Total Pressure: Models offer total pressures from 650 Pa up to 3500 Pa, indicating their capability to overcome resistance in ducting systems.
- Volumetric Flow Rate: Ranging from 2.7 m³/min to 35.0 m³/min, providing options for different air volume demands.
- Motor Speed: Typically around 2800-3500 rpm, ensuring effective air movement.
- Efficiency Class: Most models are rated IE3, indicating high energy efficiency in compliance with current regulations.
- Sound Pressure Level: Varies by model, generally ranging from 60 dB(A) to 80 dB(A) at 1m distance, depending on the operating point.
- Ambient Temperature: Designed for operation within a range of -20°C to +40°C. For higher temperatures, special considerations or versions may be required.
- Medium Temperature: Standard versions can handle conveyed media temperatures from -20°C to +80°C. For temperatures up to +180°C, a thermal barrier and a filter unit are required.
- Protection Class: Motors typically have IP55 protection, ensuring resistance against dust and water jets.
- Insulation Class: Motors are usually rated F, allowing for higher operating temperatures.
- Bearing Service Life: Minimum 22,000 hours for horizontal motor shaft, and 11,000 hours for vertical motor shaft.
The blowers can be configured with various mounting options, including foot mounting, console mounting, and pressure or suction side mounting, to integrate seamlessly into existing systems.
Usage Features
The RD blowers are designed for ease of installation and operation, with several features enhancing their usability:
- Flexible Mounting: Various mounting options allow for versatile installation in different orientations and spaces.
- Motor Protection: Integrated motor protection features, such as PTC thermistors or thermal contacts, safeguard the motor from overheating.
- Frequency Converter Compatibility: The blowers are suitable for operation with frequency converters, allowing for variable speed control and optimized performance. This also enables soft starts and stops, reducing mechanical stress.
- Robust Construction: The use of durable materials like aluminum, steel, copper, and plastic ensures a long service life and resistance to harsh industrial environments.
- Compliance: The blowers comply with relevant European directives and standards, including the Machinery Directive (2006/42/EC) and the Low Voltage Directive (2014/35/EU), ensuring safety and quality.
- Explosion Protection: Specific models are available for potentially explosive atmospheres, complying with ATEX directives. These models require careful selection and installation according to specific guidelines.
- Noise Reduction: While industrial blowers generate noise, the design aims to minimize it, with sound pressure levels provided for planning purposes.
- Electrical Connection: Clear instructions are provided for electrical wiring, including star-delta connections and frequency converter integration.
Maintenance Features
Regular maintenance is crucial for ensuring the longevity and optimal performance of the RD blowers. Key maintenance aspects include:
- Filter Checks: Regular inspection and cleaning or replacement of filters are recommended to prevent blockages and maintain airflow efficiency.
- Bearing Maintenance: The ball bearings are sealed for life and generally do not require relubrication. However, regular checks for unusual noises or vibrations are advised. In case of damage, bearings must be replaced by qualified personnel.
- Visual Inspections: Periodic visual inspections of the blower, motor, and all connections are necessary to identify any signs of wear, damage, or loose components.
- Cleaning: The blower and motor should be kept clean to prevent dust and debris buildup, which can affect performance and cooling.
- Electrical Checks: Regular inspection of electrical connections and wiring ensures safety and proper operation.
- Documentation: Maintaining a log of all maintenance activities, including dates and findings, is recommended for effective tracking and troubleshooting.
- Spare Parts: Elektrotor provides a comprehensive list of spare parts, ensuring that components can be easily replaced when needed. It is recommended to use original spare parts to maintain performance and warranty.
- Storage: If the blower is to be stored for an extended period, it should be kept in a dry, dust-free, and vibration-free area, with temperatures between -20°C and +60°C. Bearings should be checked after 6 months of storage.
The RD series blowers are designed for easy serviceability, allowing for straightforward access to key components for inspection and replacement. However, any repairs or modifications should only be carried out by qualified personnel to ensure safety and maintain warranty.
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