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A compact Roots blower is a highly integrated and structurally compact Roots blower. Its core feature is that the main unit, motor, valves, silencers and other components are pre‑assembled on a unified base, specially designed for space‑constrained scenarios.

I. Core Structure and Features

High Integration

• Integrated unit: The blower main body, motor, inlet/outlet silencers, safety valve, check valve, filter, pressure gauge, flexible connector and vibration isolator are all integrated on a common base.
• Optimized layout: Mostly arranged in vertical stacking or direct‑drive compact configuration, with volume reduced by 30%–50% and floor space saved by about 40%–65% compared with conventional models.

Transmission and Performance

• Drive: Mostly direct drive (motor‑coupling‑blower), eliminating belts, with transmission efficiency ≥95%, lower energy consumption and lower noise.
• Rotor: Three-lobe or twisted-lobe profile, featuring small air pulsation, stable operation and noise level of 75–85 dB.
• Seal: Mostly oil‑free seals, ensuring clean, oil‑free conveyed gas.

Installation and Maintenance

• Easy installation: No foundation bolts required; only pipeline connection and power supply are needed on site.
• Simple maintenance: Closed gearbox, no belt replacement required; routine maintenance mainly involves regular oil replacement.

II. Main Technical Parameters (Reference)

• Flow rate: 0.45–100.6 m³/min
• Pressure boost: 9.8–98 kPa (medium and low pressure)
• Diameter: Approx. 80–200 mm
• Motor power: 5.5–110 kW

III. Compact vs. Conventional Roots Blower (Comparison)

表格

Item	Compact Type	Conventional Type
Structure	Highly integrated, unified base	Split type, separate installation
Floor space	Small (40%–65% reduction)	Large, requiring extra space
Transmission	Mainly direct drive, high efficiency	Belt / direct drive, slightly lower efficiency
Noise	75–85 dB	85–95 dB
Installation	Ready for use, no foundation bolts	Requires assembly and fixed foundation
Application	Narrow spaces, modularization	Sufficient space, conventional working conditions

IV. Typical Applications

Mobile / underground applications: Vehicle‑mounted equipment, tunnel ventilation, ship compartments

Wastewater treatment: Containerized / small‑scale aeration, mobile aeration equipment

Pneumatic conveying: Powder, grain and chemical material conveying in workshops

Aquaculture: High‑density oxygenation, vehicle‑mounted / ship‑mounted oxygen supply

Environmental protection / chemical industry: Desulfurization and denitrification, small‑scale chemical process air supply