7.5kW 4 in 1 Fixed Speed Single Stage Air Compressor

Elily 7.5kW 4 in 1 Fixed Speed Single Stage Air Compressor is an integrated unit combining the compressor, air receiver tank, refrigerated dryer, and filters. It is space-saving and requires no complex installation. Featuring a classic, robust fixed-speed motor configuration, it delivers a high-purity air supply suitable for various industries.

1. Classic Fixed-Speed Motor Configuration: Streamlined, Durable, and Easy to Maintain
Equipped with a 7.5kW national standard fixed-speed asynchronous motor, it utilizes direct-drive transmission to eliminate intermediate power losses. It employs a proven Y-Δ (star-delta) reduced-voltage starting method, avoiding complex variable-frequency electronic components. Resistant to dust and temperature extremes, it is well-suited for harsh workshop environments. Compared to variable-frequency models, it offers lower purchase costs and widely available, universal spare parts. It requires only routine maintenance every 2,000 hours—eliminating the need for specialized mechanics—and offers low barriers to daily operation, high reliability during long-term continuous use, and a long service life.

2. Integrated 4-in-1 Design: Significant Savings on Footprint and Installation Costs
The unit integrates the compressor block, national standard air receiver tank, plate-type refrigerated dryer, and a four-stage filtration system onto a single base. Piping connections, airtightness testing, and system commissioning are completed at the factory. There is no need to purchase separate dryers or filters, and the design eliminates tedious on-site tasks like piping layout, interconnection, and leak testing—simply plug it in and use it. With a compact, organized layout, it saves over 30% of floor space compared to split-system setups, making it ideal for space-constrained environments like small workshops, studios, and auto repair shops; a single person can easily position the unit.

3. High-Efficiency Refrigerated Drying + Four-Stage Precision Filtration: Dry, Clean, Oil-Free, and Water-Free Air
Features a built-in, matched 1.6m³/min refrigerated dryer that effectively condenses and removes moisture, achieving an outlet pressure dew point of 3°C or lower. This completely prevents water accumulation and rusting in pipelines and pneumatic tools. Complemented by a four-stage progressive precision filtration system, it removes dust, liquid water, oil mist, and impurities layer by layer. It achieves a filtration precision of 0.01ppm and a residual oil content of ≤0.001mg/m³, meeting the air purity requirements for applications such as spray painting, precision instrumentation, and food packaging.
4. Air-cooled constant-temperature heat dissipation + multiple safety protections ensure no overheating during prolonged operation.

The system utilizes an oversized plate-fin radiator and a high-power cooling fan, combined with an optimized internal airflow design. This enables continuous full-load operation in high-temperature environments (up to 35°C) while keeping discharge temperatures within a stable, safe range—effectively preventing shutdowns due to overheating or pressure drops. It comes standard with an intelligent PLC control system featuring five key safety protections: high temperature, high pressure, phase loss, overload, and oil loss. The system automatically shuts down and triggers an alarm upon detecting anomalies; its user-friendly, one-touch operation makes it easy for beginners to use while ensuring safe, reliable performance.

Product Specifications:

Product Applications:

The Elily 7.5kW 4 in 1 Fixed Speed Single Stage Air Compressor—featuring stable pressure, a clean air supply, and excellent cost-performance—is ideally suited for small-to-medium-scale applications requiring a constant air supply and cost-effective solutions. Typical use cases include small-scale laser engraving, pneumatic marking, automotive bodywork and painting, precision laboratory air supply, woodworking, small packaging equipment, and auxiliary air for automated assembly. It is particularly well-suited for standard production environments that require dry compressed air but do not necessitate variable frequency drive (VFD) capabilities.

Product Capabilities

Guangdong Yili Machinery Equipment Co., Ltd., established in 2010, is a Guangdong-based high-tech enterprise specializing in the R&D and manufacturing of integrated air compressors (featuring both fixed-speed and variable-frequency models). The company operates a modern 20,000-square-meter facility with an annual production capacity exceeding 5,000 units. It maintains dedicated production lines for its "four-in-one" integrated fixed-speed models, subjecting every unit to five rigorous pre-delivery tests: pressure, airtightness, temperature rise, noise, and aging. All air receivers are certified pressure vessels that come with official inspection certificates. With over a decade of experience serving the small-to-medium-scale compressed air market—supporting more than 1,500 small factories, auto repair chains, and processing workshops—the company has earned market recognition for its products' rugged durability, excellent cost-performance ratio, and convenient after-sales service.

Comprehensive After-Sales Support:

The unit comes with a 1-year warranty for the complete machine, a 3-year warranty for core components, and a 5-year warranty for the air receiver tank (compliant with national standards). We guarantee a response within 2 hours and on-site inspection/repair within 48 hours in domestic prefecture-level cities. Included are an illustrated manual, a QR code for operation videos, and a quick-reference troubleshooting chart, enabling a standard electrician to master operation in just 10 minutes. Consumables such as air filters, oil filters, and lubricants are kept in stock year-round with rapid 48-hour shipping; lifelong remote technical guidance is provided, allowing for easy equipment maintenance even without a dedicated mechanic.

Logistics and Delivery

The Elily 7.5kW 4 in 1 Fixed Speed Single Stage Air Compressors feature triple-layer reinforced packaging—consisting of a solid wood pallet, stretch wrap, and a heavy-duty carton—to prevent shock and impact damage during transit. We offer direct factory delivery via dedicated vehicle for major industrial cities, while customers in remote areas can pick up their orders from designated logistics depots. Before shipment, we depressurize the tanks and seal all pipeline connections to ensure safe, compliant transport. Upon receipt, if you notice any packaging damage or equipment deformation, please take photos as evidence and contact our customer service team to facilitate after-sales support.

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FAQ

How many pneumatic tools can a 7.5kW fixed-speed "4-in-1" unit power?
It can simultaneously power 2–3 small pneumatic wrenches or blow guns, or one small laser engraver or spray gun, meeting the centralized air supply needs of standard small workstations.

Can the fixed-speed model operate continuously for 24 hours?
Yes. The fixed-speed motor features a stable structure and excellent heat dissipation, supporting uninterrupted, constant-load operation around the clock. It is resistant to overheating-related failures and is suitable for long-term assembly line operations.

What is the minimum order quantity (MOQ)?
The MOQ for standard models is 1 unit. For OEM customization, the MOQ is 5–10 units, depending on the specific customization requirements.

What is the product warranty period?
The warranty covers the entire unit for 1 year, with a 3-year warranty on core components: the permanent magnet motor, the compressor air end, and the variable frequency drive (VFD).

Are certifications such as CE and ISO provided?
Yes. The unit holds CE certification and ISO9001 quality management system certification. Scanned copies of the original certificates can be provided to meet export customs clearance requirements.

Can voltage and frequency be customized?
Yes. We support 220V, 380V, 400V, 415V, and 440V, as well as 50Hz or 60Hz frequencies. Please specify the voltage standard of the destination country when placing your order.

Is video guidance provided for installation and commissioning?
Yes. Our technical staff can provide real-time video guidance via platforms such as WeChat, WhatsApp, or Zoom to assist with installation, wiring, parameter settings, and initial startup/commissioning.

Can different models be mixed in a single order?
Yes. A single order can include models with different power ratings and configurations; the MOQ is calculated based on the total order.