7.5kW 8 Bar Tank-Mounted VSD Single-Stage Screw Air Compressor

Elily 7.5kW 8 Bar Tank-Mounted Single-Stage VSD Screw Air Compressor adopts a fully integrated all-in-one design, combining the main compressor host and air receiver tank into a compact unified system with a stable working pressure of 0.8 MPa.

The compressor unit and air tank are firmly fixed on an integrated base frame. All internal piping assembly and strict air tightness testing are fully completed in the factory before delivery. On-site installation is extremely convenient — users only need to connect the power supply and air outlet pipeline to start formal operation.

Equipped with a high-efficiency IE4 premium permanent magnet synchronous motor, the intelligent VSD system automatically adjusts the motor operating speed according to real-time air consumption, avoiding unnecessary energy waste.

Field practical tests verify that, under 0.8 MPa working pressure and 60% operating load, the 7.5kW VSD model saves 1.8 kWh of electricity per hour when compared with conventional fixed-speed piston compressors of the same power specification, delivering remarkable long-term energy-saving benefits.

We provide both 220V single-phase and 380V three-phase versions, with a stable air displacement ranging from 0.8 to 1.0 m³/min. The 220V single-phase model is particularly suitable for auto repair workshops, small processing workshops, and home-based factories without three-phase power access.

The unit operates at an ultra-low noise level of only 63 dB(A), over 20 dB quieter than traditional piston compressors. It can be placed directly in workshop working areas without requiring additional soundproofing equipment.

Equipped with a high-definition LED digital intelligent controller, the machine supports real-time monitoring of discharge pressure, operating frequency, total running time, and maintenance countdown data. It features automatic start-stop operation: the unit automatically stops once reaching the preset upper pressure limit and restarts when system pressure drops. Users can freely set customized upper and lower pressure thresholds to match their actual pneumatic usage demands.

Product Specifications:

Note:

Standard air tank capacities by power: 

≤7.5kW (60–80L), 11–15kW (120L), 22kW (200L) 

Larger tanks or split-type structures are customizable; 

Consult our sales team for details.

Applications:

Elily 7.5kW 8 Bar Tank-Mounted Single-Stage VSD Screw Air Compressor is widely applicable for small and medium-scale pneumatic demand scenarios across multiple industries, featuring stable pressure output, low noise, significant energy savings and easy installation.

1. Rubber Industry

Ideal for vulcanizer mold release and factory pneumatic control systems. Maintaining a steady working pressure of 0.8 MPa, the unit achieves up to 30% energy savings. With a low noise level of only 63 dB(A), it can be installed directly inside production workshops and serves as an excellent replacement for traditional noisy piston compressors.

2. Packaging Industry

Perfectly matched for strapping machines and sealing equipment. The all-in-one integrated design supports plug-and-play operation for fast on-site deployment. Optional precision filters ensure clean air output. With an air displacement of 1.2 m³/min, the compressor can stably drive 2 to 3 packaging machines simultaneously.

3. CNC Machining Industry

Suitable for CNC chip blowing, pneumatic tool changing and workpiece clamping. Air pressure fluctuation is controlled within ±0.01 MPa, effectively guaranteeing high-precision machining quality. The available 220V single-phase version makes it highly adaptable for small mold processing workshops with limited power conditions.

4. Glass Processing Industry

Provides stable pneumatic power for glass edging machines, drilling equipment and cutting air-blowing processes. The permanent magnet VSD system intelligently adjusts air output according to actual demand. Ultra-low operating noise allows installation close to processing equipment without affecting the working environment.

5. Ceramics Industry

Widely used for ceramic green body dust removal, automatic glazing control and brick pressing auxiliary air supply. The integrated air tank simplifies pipeline layout and reduces installation complexity. Equipped with high-efficiency filtration, the compressor operates steadily even in high-dust workshop environments.

6. Woodworking & Furniture Industry

Designed for pneumatic nail guns, spraying equipment and carving chip removal work. The 220V plug-and-play version adapts to conventional civilian power supplies. With only 63 dB(A) noise and a compact floor area of 0.53 m², it is highly suitable for small woodworking and furniture workshops.

7. Printing & Dyeing Industry

Supports stable operation of printing machines, folding equipment and embossing machines. Consistent air pressure ensures reliable air suction and tension control during production. Optional air dryers are available to provide dry and clean compressed air for high-standard printing and dyeing processes.

8. Thermoforming Industry

Specially applied for positive-pressure mold release and air-blowing operations in thermoforming production. The built-in air receiver tank effectively copes with instantaneous high air consumption. The compact 220V model is ideal for small and medium-sized thermoforming factories.

9. Vacuum Suction & Workpiece Clamping

Compatible with CNC machines and engraving equipment for vacuum workpiece fixation. The stable 0.8 MPa positive-pressure output drives vacuum generators consistently, preventing workpiece displacement and ensuring precise clamping during high-speed processing.

10. Material Handling & Central Vacuum Systems

Suitable for pneumatic material conveying, workshop dust cleaning and centralized factory air supply systems. The integrated structure greatly simplifies system installation. Optional dryers and precision filters can be configured to meet diversified industrial air quality requirements.

Company Strength

Guangdong Yili Machinery Equipment Co., Ltd., operating under the brand Elily, was founded in 2010. As a high-tech enterprise certified by Guangdong Province, we focus on the R&D and manufacturing of permanent magnet VSD screw air compressors.

Our manufacturing base covers a plant area of 20,000 square meters with an annual output capacity of more than 5,000 compressor units. Our products are exported to over 40 countries and regions around the globe.

We have built exclusive dedicated production and testing lines for low-power all-in-one dual-function compressor models. Every finished unit fitted with an air receiver tank passes a 30-minute full-system factory inspection covering pressure holding, temperature rise, noise and vibration tests before shipment.

All matched air receiver tanks are nationally certified pressure vessels complete with official supervision inspection certificates, fully complying with safety standards to guarantee reliable and safe operation for users.

Quality Inspection and Control Procedure

1. All incoming raw material batches are strictly inspected by the in-house Quality Control Center. Qualified materials are handed over to the Warehousing and Logistics Department for standardized storage. Unqualified raw materials are directly rejected and returned to suppliers.

2. On-site quality inspectors conduct real-time quality checks throughout the entire production process. Products that meet quality standards continue with subsequent production procedures and are sampled for professional performance testing. Disqualified products require technical adjustment or immediate production suspension. All finished products undergo 100% full inspection, and only fully qualified products are allowed to enter the next production process.

3. All products that fail to meet inspection standards are classified as defective products and isolated in accordance with quality management regulations.

4. At the end of each production shift, inspectors carry out comprehensive final inspection on all products produced during the shift. Qualified products are approved for warehouse storage. Unqualified products are sent for rework and secondary inspection. Products that pass re-inspection will be stored, while persistent non-conforming products will be classified as defective goods.

5. Before delivery, every product batch undergoes strict final outgoing quality inspection. Only fully qualified products are approved for shipment. Any unqualified products are identified as defective and will never be delivered to customers.

Customer's genuine feedback

FAQ

Q: What are the differences between the 220V and 380V models?

A: The core difference lies in power supply: the 220V model adopts single-phase power supply, whereas the 380V version requires three-phase power. In terms of air output, the flow rate of the 220V unit with the same rated power is around 15%–20% lower than the 380V counterpart, caused by the slightly lower operating efficiency of single-phase motors.

Q: Does the unit really only produce 63 decibels of noise?

A: When measured 1 meter away from the fully loaded 7.5kW compressor, the noise level ranges from 63 to 65 dB(A), comparable to the volume of daily face-to-face conversation. Placed in a workshop corner, it barely distributes regular work and communication.

Q: Is there a risk of explosion for the all-in-one air receiver tank?

A: There is zero explosion risk. The air receiver is a nationally certified pressure vessel, engineered to withstand pressure 1.5 times the maximum working pressure. Every unit passes a strict pressure holding test before factory shipment. Additionally, a built-in safety valve automatically releases excess pressure once the pressure threshold is exceeded, ensuring safe operation.

Q: Is mobile phone remote control available?

A: The standard controller only supports on-site parameter setting and data display without mobile APP remote access. If you require remote start/stop or real-time data monitoring, an optional IoT module can be equipped. Please reach out to our sales team for more details.

Q: How to handle machine faults within the warranty period?

A: Contact our after-sales team first for remote fault diagnosis. If component replacement is required, we will deliver spare parts via express delivery free of charge. The complete machine enjoys a 12-month warranty, while core main components are covered under a 2-year warranty.

Q: Can we test the machine on-site or apply for a refund?

A: On-site machine testing is available at our Dongguan headquarters. For shipped units with customized configurations, non-quality related returns are not accepted without prior consultation. Nevertheless, we offer comprehensive solutions including remote video troubleshooting and free accessory resupply to resolve your operational issues.