4.5kW 8 Bar Tank Mounted Fixed Speed Single Stage Air Compressor

The Elily 4.5kW 8 Bar Tank-Mounted Fixed-Speed Single-Stage Rotary Screw Air Compressor is a compact all-in-one unit integrating a screw airend and standard air receiver tank. It delivers stable 8-bar constant-pressure airflow with robust construction and exceptional durability. Featuring low procurement costs and minimal daily maintenance expenditure, it stands as the most cost-effective solution for basic compressed air demands of small businesses and workshops.

1. Integrated 2-in-1 Tank-Mounted Design, Space-Saving & Plug-and-Play

This all-in-one unit integrates the compressor host and air receiver tank as a complete standalone system. All pressure tightness testing and factory commissioning are fully completed before delivery. The machine is ready for immediate operation after simple power and piping connection.

Models ranging from 4.5kW to 7.5kW occupy a floor area of only 0.53 m², greatly saving workshop space and eliminating complicated on-site assembly and installation work. The integrated structure effectively reduces pipeline connections and air leakage risks, ensuring stable and consistent air output.

2. Mature Fixed-Speed Motor Structure, Stable Operation & Low Maintenance

Adopting a classic industrial asynchronous fixed-speed motor without complex vulnerable electronic components, the unit features a simple, reliable mechanical structure. All spare parts are universally available in the market, bringing extremely low maintenance difficulty and operating costs.

With a low failure rate and excellent continuous operation capability, it supports long-term stable working conditions. Its durable overall design effectively reduces later operational investment, achieving superior long-term cost performance for small-scale production.

3. Flexible Dual Voltage Compatibility, Wider Application Range

The 4.5kW and 7.5kW compact models support dual voltage options: 220V single-phase and 380V three-phase, adapting to different civilian and industrial power environments. It realizes true plug-and-play convenience for small workshops, repair shops and family factories.

All models above 11kW are equipped with standard 380V three-phase industrial power configuration to match high-power industrial air supply demands. Diversified voltage specifications enable flexible matching for various application scenarios.

4. Low Noise & Vibration, Free Placement Without Soundproof Setup

Optimized with balanced operating structure and professional mute design, the unit maintains running noise at only 62–68 dB during operation. It produces slight vibration and requires no special foundation fixation or dedicated soundproof room.

The unit can be placed directly inside workshops, storefronts and indoor working environments, creating a quieter and safer working atmosphere for daily operation.

5. Intelligent Control & Full Safety Protection, Worry-Free Operation

Equipped with a high-precision LED digital controller, the machine supports one-touch start-stop and intuitive pressure parameter adjustment, delivering simple and user-friendly operation.

Built with five core safety protection mechanisms including high-temperature protection, overload protection, phase loss protection, high-pressure protection and oil shortage protection, the system triggers automatic shutdown and alarm once abnormal conditions occur, effectively protecting the equipment and ensuring long-term safe and stable operation.

Product Specifications:

Note:

Tank capacity is matched to compressor power: 7.5kW and below fitted with 60–80 L tanks; 11–15kW with 120 L; 22kW with 200 L.

All tanks are certified pressure vessels with official inspection certificates. Larger separate air receiver tanks can be customized on demand.

Target Industries and Applications

Elily’s 4.5kW 8 Bar Tank-Mounted Fixed-Speed Single-Stage Air Compressor delivers steady airflow and cost-efficient performance. The standard 8-bar pressure fits most common pneumatic tools, ideal for small and medium-scale operations.

- Auto Repair Shops: Powers pneumatic wrenches, spray guns, tire inflation and air blowing. Low noise avoids neighborhood disturbance. The 220V single-phase option works perfectly for roadside stores without three-phase power.

- Small Factories & Mold Workshops: Supports engraving machines, pneumatic fixtures and small sandblasting equipment. Stable pressure sustains simultaneous operation of multiple tools.

- Food Packaging & Light Industry: Matches strappers, sealers and pneumatic conveying. Combined with precision filters, it provides clean air for regular production.

- Laboratories & Auxiliary Medical Facilities: Supplies small precision instruments. Quiet, stable operation suits indoor environments requiring low noise.

- Home Workshops & DIY Studios: Great for model spraying, woodworking nail guns and manual pneumatic processing. Compact layout and simple maintenance are easy for individual users.

Procurement Process

1. Share your requirements: pneumatic tool types, quantity of tools running concurrently, daily operation hours and available power supply.

2. Our professional team offers free model selection and prompt quotation.

3. Confirm configuration, sign contract and complete payment.

4. In-stock units can be dispatched within 3 working days.

5. Remote video guidance for installation and commissioning. On-site service is available by appointment for complicated projects.

6. Continuous after-sales follow-up and maintenance reminders.

Choose Elily 4.5kW 8 Bar Tank-Mounted Fixed-Speed Single-Stage Air Compressor for dependable low-pressure air supply. It features solid durability, high cost performance and simple maintenance, bringing you a hassle-free one-stop purchasing solution.

Logistics & Packaging

Elily’s 4.5kW 8 Bar Tank-Mounted Fixed-Speed Single-Stage Air Compressor adopts robust three-layer reinforced packaging: wooden pallet, stretch film and heavy-duty carton, protecting the unit against collision damage during long-distance transit.

We provide dedicated truck delivery to major industrial cities across China. Clients in remote regions may collect goods from designated logistics terminals. Before shipment, the air receiver tank is fully depressurized to meet transport safety requirements.

If you spot damaged packaging, tilting or equipment deformation upon arrival, capture photos as evidence and contact our support team immediately. Do not power on the machine.

For export orders, we supply complete pressure vessel documentation complying with international standards. Custom export packaging and customs clearance support are also available.

FAQ

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

A: The main distinction is power supply condition. The 220V single-phase version works with ordinary domestic power without three-phase electricity, yet its free air delivery is 15–20% lower at the same power. The 380V three-phase model delivers stronger power and larger airflow, ideal for continuous heavy-duty operation. Pick 380V if three-phase power is accessible; otherwise, opt for the 220V variant.

Q: Are fixed-speed compressors noisy during operation?

A: No. The full 4.5–22kW 2-in-1 fixed-speed compressor series runs at 62–68 dB(A), similar to daily conversation. Optimized vibration and noise reduction structures allow indoor installation without soundproof rooms and will not disturb staff or surrounding neighbors.

Q: Is the built-in air receiver tank of the 2-in-1 unit safe?

A: Completely safe. The tank is a certified pressure vessel designed to endure pressure 1.5 times the rated working load. Each tank passes factory pressure retention testing and is fitted with an automatic safety relief valve. Official inspection certificates are provided for compliant and long-term safe operation.

Q: How to select the proper power rating for a fixed-speed air compressor?

A: Sum up the air consumption of all pneumatic tools running simultaneously and add a 1.2 safety margin to match the model according to parameter sheets. If you cannot confirm airflow demand, inform our sales team of your tool types and quantities, and we will offer free professional selection suggestions.

Q: Can the working pressure of fixed-speed units be adjusted?

A: Yes. The whole series supports adjustable pressure ranging from 0.8 MPa to 1.0 MPa. Users can set startup and shutdown pressures freely via the intelligent controller. The factory default setting is 0.8 MPa (8 bar), enabling immediate startup upon delivery.

Q: How are faults dealt with within the warranty period?

A: Contact our after-sales team and share fault videos for remote diagnosis and guidance. If spare parts replacement is required, we arrange direct shipment of components. On-site maintenance will be organized within 48 hours for failures of core components. Free repair and spare parts are offered for non-artificial damage under warranty.

Q: Is customized air tank capacity available?

A: Yes. Standard tank sizes satisfy most working scenarios. If larger storage capacity is needed, we can customize units with bigger integrated tanks or separate split air receiver systems. Consult our sales team for tailor-made configurations.