Air Compressor

A constant-frequency screw air compressor engineered for stable output, efficient direct transmission and dependable long-term industrial service.

BST constant-frequency screw Air Compressor

Performance Characteristics

Efficient, Stable & Easy to Maintain

Advanced air-end geometry, low-speed operation and a direct-coupled drivetrain deliver reliable compressed air with reduced transmission losses.

High-Efficiency Air End

The constant-frequency screw air compressor adopts an industry-leading air end with high efficiency and low rotational speed. It uses a third-generation rotor profile with advanced geometric design, ensuring stable performance, high reliability, energy savings, and long service life.

Efficient Direct Drive

It is equipped with a low-speed motor, offering high stability and 3–5% higher efficiency than similar products. The direct-coupled transmission structure provides 100% transmission efficiency without loss, reduces maintenance costs, allows easy disassembly, and greatly minimizes downtime.

Service-Friendly Construction

The coaxial integrated structure reduces the use of wear parts while maintaining full transmission efficiency. A low-speed cooling fan is used to extend service life, and the cooler and fan can be disassembled separately for easier maintenance.

Technical Specification

BST Screw Air Compressor Parameters

Nine constant-frequency models cover motor powers from 90 to 315 kW and multiple working-pressure options.

ParametersBST-90MBST-110MBST-132MBST-160MBST-185MBST-200MBST-220MBST-250MBST-315M1
F.A.D / Max. Working Pressurem³/min / MPa14.8 / 0.819.5 / 0.822.1 / 0.826.0 / 0.830.0 / 0.832.8 / 0.836.5 / 0.840.8 / 0.850.0 / 0.8
m³/min / MPa12.5 / 1.015.5 / 1.018.5 / 1.022.6 / 1.026.0 / 1.028.0 / 1.033.2 / 1.036.4 / 1.044.5 / 1.0
m³/min / MPa10.9 / 1.2514.4 / 1.2516.8 / 1.2520.5 / 1.2523.2 / 1.2526.0 / 1.2529.5 / 1.2533.2 / 1.2539.5 / 1.25
Ambient Temperature°C-5 ~ 45
Cooling ModeAir or Water Cooling
Drive ModeDirect Coupling Drive
PowerkW90110132160185200220250315
Starting ModeY-△ StarterSoft Starter
DimensionsLength (mm)195023002300250036503650369536954300
Width (mm)125014701470160021002100210021002365
Height (mm)181018401840190022802280228022802380
Weightkg143018101880230042004400470049006800
Outlet Pipe DiameterinchRp2Rp2-1/2Rp2-1/2Rp2-1/2DN100DN100DN125DN125DN125