Industrial Compressor 75kw Oil Injected Low Noise Screw Air Compressor

Overview

Basic Info.

Model NO.	SJ50A
Structure Type	Closed Type
Installation Type	Stationary Type
Type	Single Screw Compressor
Feature	Permanent Magnet Motor
Transport Package	Wooden Case
Specification	6.8m3/min
Trademark	Jiayi
Origin	Wenling City of Zhejiang Province
HS Code	8414809090
Production Capacity	100 Pieces Per Day

Product Description

China 30hp 22kw high pressure electric rotary screw air compressor for industrial

Product Description

Screw compressors are designed for those applications that require a high volume of compressed air and/or continuous usage.
They do not require to stop for the cooling process, allowing constant air production. Silent, efficient, and reliable, Jiayi's screw
compressors grant you a more comfortable workspace, continuous usage, longer components' lifecycle, more efficiency, and
cost savings.
Screw compressors operate based on two meshing helical screw rotating in inverse order, avoiding any contact with mechanical
parts.VARIABLE SPEED SCREW COMPRESSORS
Variable speed screw compressors allow you to save up lots of power energy, compared to fixed speed ones. While traditional
compressors work at one speed (at 100%), variable speed screw compressors regulate the motor's speed to adjust to the
production's fluctuating air requirements. They are ideal for applications and production systems whose usage of compressed air
varies during the day, granting the right quantity of air needed and a saving the cost of electricity.
HIGH EFFICIENCY IN VARIABLE SPEED SCREW COMPRESSORS
The magnet permanent motor controll the energy consumption better than fixed speed compressors. This innovative technology
takes the energy savings to a new level, improving efficiency and performance. Jiayi's innovative technology guarantees
remarkable savings on energy bills, creating return on the investment in 1-2 years.

NO.	COMPARE	PERMANENT MAGNETIC FREQUENCY CONVERSION	INDUSTRIAL FREQUENCY	RESULT	CONCLUSION
1	Motor efficiency	94%-96%	87%-89%	7% saving	The permanent magnetic inverter model save 32% more envergy than the normal industrial frequency type.
2	No-load electricity consumption	45% of the full capacity	45% of the full capacity	if we assume average no loading time 30%,the overall saving will be 13.5%
3	Over pressure electricity consumption	no	average 1kg/cm,electricity consumption 7%	7% saving
4	Integrated shaft efficiency	100%	belt 94%, coupling 97%	save on belt 6%, on coupling 3%
5	Other advantage	constant pressure output	variable pressure	permanent magnetic ensure the production quality

Product Parameters

SJ series screw air compressor technical data
Model	SJ10A	SJ15A	SJ20A	SJ25A
Air volume / Air pressure	1.2m3/min0.7Mpa	1.65m3/min0.7Mpa	2.5m3/min0.7Mpa	3.2m3/min0.70Mpa
Lubricating oil	4L	8L	8L	12L
Power	7.5kw	11kw	15kw	18.5kw
Type	Variable speed, magnet permanent motor	Variable speed, magnet permanent motor	Variable speed, magnet permanent motor	Variable speed, magnet permanent motor
Size	880*600*820mm	1080*720*1000mm	1080*720*1000mm	1250*850*1080mm
Weight	120kgs	214kgs	214kgs	282kgs
Noise	66dB(A)	68dB(A)	68dB(A)	68dB(A)
Driving mode	Direct link
Output pipe	G3/4	G3/4	G3/4	G 1 1/4

FeatureIn the workshop, air consumption is high during the day time but comparatively low in the night. In the meantime, the air
consumption in busy season is much higher than that of in low season.
92% air compressors have got serious fluctuations during operation
70% air compressors have a load between 40% to 80% while working.
Thus, there is much energy to save if we use a variable frequency compressor in stead.
1. Permanent magnet frequency conversion motor that makes the machine meets the National Level 1 energy efiiciency standard.
2. The new patent design of screw type machine equipped with 8 sets of S K F import bearing.
3. Big name brand frenquency converter / inverter, top vector frequency conversion control system.
4. Double frenquency conversion desigh makes frequency changing possible for for both motor and the fan.
5. PID air volume regulation technology for saving overall air consumption.
6. 40-200hz wide frequency option in order to meet different working conditions.
7. Stable air pressure, fluctuation within 0.1bar.
8. 0 load start, less effect on power grid.
9. A better design to seperate the low temperature and high temperature unit, so the electrical componentes have longer life span.
10. Best human manchine interface with more date and detailed function.
Smart Control Panel
The digital control panel can control versatile situation with clear display, which makes the air compressor easy to control and easy
to maintain.High Efficient Built-in Cooler
The cooler is designed for high temperature environment, it helps to keep air compressor running in an appropriate temperature.
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