DS90 is an oil-free rotary screw machine designed for powder and granular material transport vehicles. It is suitable for conveying various powders and granular materials, and motor drive remedies are also available for fixed locations. All of our screw compressors are oil-free and non-contact designs, which means that your valuable payload will not face any risk of contamination during the discharge process.
Key Takeaways
- The basic principle of oil-free rotary screw machine
- Demand analysis of dry bulk cargo transportation by road tanker
- Screw Truck Mounted Compressors in Dry Bulk Transportation by Road Tankers
Marine Main Compressor
Oil Free Screw Compressors for Bulk Trucks
Our screw compressors are suitable for transporting a broad array of products, including flour, sugar, salt, soda, cement, sand, plastic pellets, powdered chemicals, pharmaceutical materials, animal feed, wood pellets, lime, gypsum, and more.
Advantages At A Glance
➢ Small size – overall dimensions 604*281*432 ➢ Lightweight – net weight 128KG, overall supporting weight less than 220KG ➢ Low speed – 800-1000RPM, no need to match a dedicated power take-off ➢ Small angle – small input angle of the drive shaft ➢ High ground clearance – lower breakdown rate ➢ Easy to mount – suitable for all domestic vehicle chassis
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Technical Data
Truck Mounted Compressor Use cases
Transport and unload construction materials such as cement, fly ash, sand and gravel.
Transportation and unloading of grain, feed and fertilizer.
Transport of plastic granules, chemical powders and other chemical raw materials
Transportation of powdered sugar, flour and other dry powdered food ingredients.
Conveys pharmaceutical powders, granules and other raw materials. Meets the strict standards of the pharmaceutical sector
Conveying plastic granules, powder and other raw materials.
Transport and unload raw materials such as cement and gypsum powder to lower dust pollution
Oil-Free Screw Compressors – The Cleaner, Safer Choice for Bulk Transport
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Advantages of Oil-Free Screw Compressors in Dry Bulk Transportation by Road Tankers
Table of Content
- The basic principle of oil-free rotary screw machine
- Demand analysis of dry bulk cargo transportation by road tanker
- Screw Truck Mounted Compressors in Dry Bulk Transportation by Road Tankers
- Practical use case cases
- Future trends
- Conclusion
The basic principle of oil-free rotary screw machine
Oil-free rotary screw machine is a type of compressor that does not require lubricant for lubrication and cooling. Its operating mechanism is slightly different from that of traditional oiled screw compressors. Oil-free screw compressors compress air through two intermeshing screws. The specific operation process is as follows:
Air intake: When the screw starts to rotate, air is sucked into the compression chamber of the compressor through the air inlet. Compression process: As the screw rotates, the air is sandwiched in the space between the two screws. As the screw rotates, the volume of the compression chamber gradually decreases, the air is compressed, and the pressure increases. Exhaust process: When the air is compressed to a certain extent, the compressed air is released through the exhaust port and enters the air storage tank or delivery system.
The design of oil-free screw compressors eliminates the need for lubricant, which is mainly achieved by using high-output performance materials and sophisticated mechanical design. The screw in the compression chamber is usually made of wear-resistant materials and can run for a long time without oil.
The use case of oil-free screw compressors in dry bulk transportation by road tank trucks not only improves transportation operating efficiency and equipment reliability, but also has important environmental and economic significance. Through oil-free design, this type of compressor not only complies with environmental regulations and reduces operating expenses, but also provides pure compressed air, ensuring the quality of materials and the cleanliness of the transportation process.
Demand analysis of dry bulk cargo transportation by road tanker
Road tanker dry bulk transportation is an efficient and economical logistics method, mainly used to transport powdered and granular dry bulk materials such as cement, fly ash, grain, plastic granules, etc. This mode of transportation has the following special requirements:
1. Efficient load/unload cycling: Dry bulk materials need to be loaded and unloaded quickly and efficiently to lower load/unload cycling time and enhance logistics operating efficiency. 2. Pollution-free transportation: Dry bulk materials cannot be contaminated during transportation to guarantee their quality and purity 3. Reliability and sustainability: Long-distance transportation requires equipment with high reliability and continuous working ability to avoid breakdown during transportation. 4. Strong adaptability: It can adapt to various types of dry bulk materials and maintain good output performance under different transportation conditions 5. Environmental protection requirements: It is necessary to lower pollution to the environment during transportation and comply with environmental protection regulations.
Although traditional oil-filled screw compressors are widely used in dry bulk transportation, they face many challenges and problems in actual operation, mainly including the following aspects:
1. Oil pollution problem:
- Problem description: Traditional oil compressors need to use lubricant for lubrication and cooling. Lubricant may be mixed into the compressed air, causing contamination of downstream equipment and materials.
- Impact: Contaminated compressed air may affect the quality of materials, especially in sectors such as food processing and pharmaceuticals that have strict requirements on air quality, which will lead to a decline in product quality or even scrapping.
2. High upkeep cost:
- Problem description: Traditional oil compressors need to regularly replace lubricant and clean up oil pollution, which is labor-intensive and costly.
- Impact: Frequent upkeep work not only increases the running cost of the equipment, but may also raise equipment production downtime and affect transportation operating efficiency.
3. Low operating efficiency:
- Problem description: Some traditional compressors are of outdated design, with low energy operating efficiency and low energy utilization.
- Impact: Inefficient compressors consume a lot of energy during long-term operation, raise operating expenses, and cannot meet the needs of efficient transportation.
4. Insufficient reliability:
- Problem description: Traditional compressors are prone to breakdown during long-term high-intensity operation and have low reliability.
- Impact: Equipment breakdown will cause transportation interruption, raise transportation time, and even affect the execution of transportation plans.
5. Environmental pollution:
- Problem description: Improper use and handling of lubricants will pollute the environment, and exhaust emissions from traditional compressors will also have a negative impact on air quality.
- Impact: Environmental pollution not only affects the surrounding ecosystem, but may also cause companies to face environmental penalties and raise operational risks.
Dry bulk transportation by road tankers requires compressors that are efficient, pollution-free, dependable, adaptable and environmentally friendly. Nevertheless, traditional oil-based compressors have many problems in these aspects. Through its unique oil-free design and high-operating efficiency operating mechanism, oil-free screw compressors can effectively meet these special needs, overcome the shortcomings of traditional compressors, and provide more dependable and environmentally friendly remedies. For this reason, the use case of oil-free screw compressors in dry bulk transportation by road tankers not only improves transportation operating efficiency and material quality, but also has significant economic and environmental benefits.
Screw Truck Mounted Compressors in Dry Bulk Transportation by Road Tankers
Clean and environmentally friendly
Oil-free design avoids oil pollution and ensures the purity of materials: One of the best features of an oil-free rotary screw machine is its oil-free design. This design completely eliminates the use of lubricant, thus avoiding oil contamination problems. In dry bulk transportation, the purity of the material is critical. For example, when transporting food, pharmaceutical ingredients or premium plastic pellets, any form of contamination directly affects the quality of the final product. The pure compressed air provided by the oil-free rotary screw machine ensures that the material is pollution-free during transportation and maintains its original purity and quality.
Comply with environmental regulations and lower environmental pollution: Oil-free screw compressors not only avoid pollution during material transportation, but also have significant advantages in environmental protection. Traditional oil-filled compressors require the use of lubricant, which may cause environmental pollution during use and disposal. The oil-free designed compressor completely eliminates this hidden danger and complies with increasingly stringent environmental regulations and standards. Reducing the use of lubricants and waste oil disposal reduces the pressure on enterprises in environmental protection and promotes a greener and more sustainable operating model.
High operating efficiency
Provide stable high-voltage output and enhance unloading operating efficiency: Oil-free screw compressors are known for their high operating efficiency and stable high-pressure output. In dry bulk transportation by road tankers, efficient air compression is the key to rapid unloading. Oil-free screw compressors can provide stable and continuous high-pressure output, allowing dry bulk materials to be quickly and evenly discharged from tank trucks, greatly improving unloading operating efficiency, reducing load/unload cycling time, and improving overall logistics operating efficiency.
Well designed, dependable operation and reduced production downtime: The oil-free rotary screw machine is well designed and uses advanced technology and premium materials to guarantee the reliability and stability of its operation. This reliability means that the compressor can still maintain stable output performance during long-term high-intensity operation, greatly reducing equipment production downtime and breakdown rates. For road transport, reduced production downtime means improved transport continuity and accuracy of plan execution.
Low upkeep cost
No need to frequently change lubricant, reducing upkeep expenses: The oil-free design of the oil-free rotary screw machine not only avoids oil pollution, but also greatly reduces upkeep expenses. Traditional oil compressors require regular replacement of lubricant and cleaning and upkeep of the oil system, which are not only cumbersome but also raise operating expenses. Oil-free screw compressors do not require lubricant at all, eliminating the cost of frequent replacement and disposal of lubricant, and reducing the daily upkeep cost of the equipment.
Simple structure, easy upkeep and overhaul: The structural design of the oil-free rotary screw machine is simple and clear, and upkeep and overhaul are very convenient. Since there is no lubricant system, the overall structure of the compressor is simpler, which makes it easier for upkeep personnel to perform routine inspections and upkeep work, quickly troubleshoot, and guarantee the long-term stable operation of the equipment. This simple and easy-to-use design not only reduces upkeep time, but also reduces upkeep difficulty and cost.
Extended service life
Wear-resistant materials and premium components extend equipment life: The oil-free rotary screw machine uses wear-resistant materials and premium components, which greatly extends the working life of the equipment. Key components such as the screw rotor and sealing system use high-strength and wear-resistant materials, which can operate stably for a long time under high load conditions. Premium manufacturing standards and strict quality assurance further guarantee the durability and reliability of the equipment.
Frequently Asked Questions
What is the main advantage of a screw compressor?
It delivers continuous, stable air flow with low vibration and is ideal for round-the-clock industrial operation.
When is a reciprocating compressor the better choice?
For intermittent use, high-pressure applications, or lower initial budgets, piston compressors remain a practical option.
What does two-stage compression enhance?
Two-stage compression reduces the compression ratio per stage, improving efficiency and lowering discharge temperature.
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Tell us your required pressure, air flow, and application, and the Panrui team will recommend the right compressor with a detailed quotation. Contact us or browse the product range to learn more.