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Two Stages Screw Air Compressor

Achieve Higher Airflow with Lower Energy Consumption

Most screw compressors do all the work in one step – squeezing air from atmospheric pressure all the way to 8 bar in a single pass. That’s hard on the machine and hard on your power bill. 

Two‑stage compression changes the game: the first stage compresses partway, the air cools down in between, then the second stage finishes the job. Lower internal temperatures mean less wear on bearings and screw elements, and up to 15% better efficiency than single‑stage units. Now add our PM VSD on top of that, and you’re matching motor speed to your actual air demand while every cubic meter takes less work to produce. 

Your electricity meter slows down. Your compressor runs cooler and quieter. For 24/7 high‑demand lines, this is the one that pays you back month after month. Simple thermodynamics, executed right.

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PURITY
7.1–45.1m³/min
FLOW RAT
8 bar / 116 psi
PRESSURE RATING
Two‑stage PM VSD

Features

These models provide a typical return on investment between 6 to 24 months.

Simple Installation

Plug-and-play system can be installed easily with minimum cost and interruption.

Small Footprint

Compact design allows installation in spaces too small for twin tower generator systems.

A-Series Specifications

ModelAir Flow
(m³/min)
Pressure
(Bar)
Horsepower
(HP)
Rated Power
(KW)
Noise dB
(A)
Dimensions
(L×W×H mm)
Weight
(kg)
Outlet
(inch)
JBT-50A7.1m³/min850HP37KW64±2dB(A)1660*1085*1400mm960KgG1,1/2
JBT-75A12.8m³/min875HP55KW64±2dB(A)2180*1360*1680mm2060KgG2
JBT-100A15.8m³/min8100HP75KW64±2dB(A)2180*1360*1680mm2160KgG2
JBT-120A19.8 m³/min8120HP90KW78±2dB(A)2500*1600*1840mm3260KgG2,1/2
JBT-150A24.1m³/min8150HP110KW78±2dB(A)2300*1470*1840mm3360KgG2,1/2
JBT-175A27.8m³/min8175HP132KW78±2dB(A)2300*1470*1840mm3560KgG2,1/2
JBT-250A36.1m³/min8250HP185KW78±2dB(A)3600*2100*2200mm4180KgDN100
JBT-280A40.5m³/min8280HP200KW78±2dB(A)3600*2100*2200mm4260KgDN100
JBT-300A45.1m³/min8300HP220KW78±2dB(A)3600*2100*2200mm4260KgDN100


Specifications

Supply Voltage380V
Frequency50Hz
Pressure8 Bar
Variable Frequency Drive (VFD)INOVANCE VFD
Drive ModePermanent Magnet Synchronous
Startup ModeVariable Frequency Drive Start
Recommended Operating Temperature Range68 to 77°F
Minimum/maximum Operating Temperature Range41 to 122°F


Frequently Asked Questions

What is a nitrogen generator, and how does it work?

A nitrogen generator is a device that produces nitrogen gas (N₂) from compressed air. It uses separation methods, such as Pressure Swing Adsorption (PSA) and Membrane Technology, to remove oxygen and other gases, leaving purified nitrogen gas.

What are the advantages of having a nitrogen generator over purchasing bottled nitrogen?

Cost savings: Long-term savings are achieved by eliminating the recurring costs of purchasing bottled nitrogen.

Convenience: Continuous on-site nitrogen generation eliminates the need for deliveries and reduces the risk of running out of nitrogen.

Customization: On-demand nitrogen generation allows you to tailor the flow and purity to your needs.

What is the difference between PSA and membrane nitrogen generators?

PSA (Pressure Swing Adsorption): Uses carbon molecular sieves to separate nitrogen from other gases in compressed air under varying pressure.

Membrane Technology: This technology uses selective permeable membranes to separate nitrogen from oxygen based on the size of the molecules.

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