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The BM Series Belt-Free Direct-Drive Air Compressor is a purpose-built, high-efficiency industrial air supply solution engineered exclusively for heavy-duty construction site operations and mobile industrial applications. With an integrated direct connection between the motor and compressor mainframe, this unit fully eliminates traditional belt transmission components, resolving common pain points of belt wear, power loss, and frequent maintenance in high-dust, harsh construction environments. Delivering a stable 8 bar working pressure with motor power options from 1.5kW to 1.8kW, and air tank capacities of 24L and 50L, this belt-free air compressor for construction sites offers reliable, continuous compressed air output for trade clients, construction contractors, and industrial equipment operators. Its rugged yet compact build, with dimensions as small as 59×25.5×66 cm, enables flexible deployment in narrow job sites and mobile work scenarios, making it a go-to air supply choice for on-site industrial operations.

MODEL | MOTOR POWER | HEAD | CYLINDER | CAPACITY | SPEED | PRESSURE | TANK | DIMENSIONS | ||||||||
KW | HP | TYPE | MM | L/MIN | C.F.M | R.P.M | BAR | PSI | L | GAL | L×W×H | |||||
BM-24 | 1.5 | 2 | BM | 42*1 | 169 | 6 | 2850 | 8 | 115 | 24 | 6.4 | 59*25.5*66 | ||||
BM-24 PRO | 1.8 | 2.5 | BM | 47*1 | 185 | 6.5 | 2850 | 8 | 115 | 24 | 6.4 | 59*25.5*66 | ||||
BM-50 | 1.5 | 2 | BM | 42*1 | 169 | 6 | 2850 | 8 | 115 | 50 | 13.2 | 67*30.5*65 | ||||
BM-50 PRO | 1.8 | 2.5 | BM | 47*1 | 185 | 6.5 | 2850 | 8 | 115 | 50 | 13.2 | 67*30.5*65 | ||||
The core direct-drive air compressor design eliminates belt-related power loss and mechanical failure risks, maximizing transmission efficiency to convert more energy into stable compressed air output. Running at a consistent 2850 R.P.M, it maintains steady air supply even during long-hour, high-intensity construction operations, cutting unnecessary energy consumption while meeting heavy-duty air demand.
With a lightweight, integrated modular structure, this heavy-duty mobile air compressor occupies minimal floor space and can be easily relocated across different construction sites. It requires no complex installation or commissioning, adapting seamlessly to outdoor job sites, temporary work zones, and narrow spaces where large stationary air compressors cannot be deployed.
The belt-free structure drastically reduces the number of wearable mechanical parts, lowering failure risks even in dusty, harsh construction environments. Daily maintenance only requires simple routine checks, with no frequent disassembly or spare part replacement needed. This drastically cuts maintenance labor and time costs for equipment rental businesses and construction teams, avoiding costly work interruptions.
Equipped with a professional silent damping structure and precision-balanced impeller, the unit runs with minimal vibration and stable pressure output, with no sudden fluctuations. It delivers consistent compressed air for a wide range of pneumatic tools, ensuring uninterrupted construction progress and reliable performance in variable on-site conditions.
This construction site air compressor powers core pneumatic equipment including nail guns, air hammers, paint sprayers, and concrete vibrators, with continuous air supply perfectly matching the high-intensity demands of building construction, interior decoration, and civil engineering projects.
Ideal for equipment rental providers and industrial maintenance teams, it supports on-site repair, pipeline pressure testing, and emergency maintenance operations, with its low-maintenance design and durable build ensuring long-term stable performance in frequent rental and mobile use cases.
Widely used in auto repair shops, hardware processing workshops, and property maintenance teams, it supports tire inflation, pneumatic tool operation, and pipeline leak testing, with a small footprint saving valuable workspace while meeting daily commercial maintenance air demands.
It provides stable compressed air for on-site metal processing, mechanical assembly, and pneumatic tool operation, delivering consistent pressure to improve on-site fabrication efficiency and assembly precision for construction and industrial business partners.