Two-Stage PM VSD Screw Air Compressor

Short Description:

● Improved host lifetime

● Two-stage compression replaces single-stage compression

● Two-stage compression is more reliable and efficient

● Two-stage compression mainframe more efficient, more energy-saving

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Product Detail

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Features

1. Two-stage compression reduces the compression ratio of each stage, reduces internal leakage, improves volumetric efficiency, reduces bearing oad, and increases the life of the host.

2. Two-stage PM VSD replaces single-stage compression, and the displacement is increased by nearly 15%, which can achieve an additional 15% energy saving effect.

3. The rotor adopts the latest patented rotor UV profile, which has been refined by more than 20 procedures to ensure the accuracy, reliability, and effectiveness of the rotor profile.

4. Two-stage PM VSD air compressor mainframe is more efficient and more energy-saving. It can save up to 40% energy compared with ordinary industrial frequency machines. Calculated at 8000h/unit/year, it can save electricity costs 30,000 USD per year.

Advantages

1.More Energy Efficient
Two-stage PM VSD rotor is directly driven through the gears, and each stage of the rotor can obtain the best speed. The Air end is always running at the best energy-saving speed. The frequency conversion soft-start reduces the energy consumption of the air compressor during startup. By controlling the pressure between stages, the compressor always works at the best efficiency point under different working conditions. Compared with single-stage fixed speed air compressor, in principle, two-stage PM VSD air compressor can save 40% energy

2.More Efficient
PM VSD motor+ no transmission efficiency loss.
PM VSD motor has the advantages of energy-saving and excellent performance.
The one-piece structure can reduce the efficiency loss of coupling and gear.

Specifications

Two-stage PM VSD Air Compressor Series Specification 22kw-75kw

Model		DKS-22VT	DKS-37VT	DKS-45VT	DKS-55VT	DKS-75V
Motor	Power(kw)	22	37	45	55	75
Motor	Horsepower(ps)	30	50	60	75	100
Air displacement/ Working pressure (M³/Min./MPa)		4.2/0.7	7.6/0.7	9.8/0.7	12.8/0.7	16.9/0.7
		4.1/0.8	7.1/.0.8	9.7/0.8	12.5/0.8	16.5/0.8
		3.5/1.0	5.9/1.0	7.8/1.0	10.7/1.0	13.0/1.0
		3.2/1.3	5.4/1.3	6.5/1.3	8.6/1.3	11.0/1.3
Air outlet diameter		DN40	DN40	DN65	DN65	DN65
Lubricating oil volume (L)		18	30	30	65	65
Noise level dB(A)		70±2	72±2	72±2	74±2	74±2
Driven method		Direct driven	Direct driven	Direct driven	Direct driven	Direct driven
Start method		PM VSD	PM VSD	PM VSD	PM VSD	PM VSD
Weight (kg)		730	1080	1680	1780	1880
Extenal dimensions	Length (mm)	1500	1900	1900	2450	2450
	Width (mm)	1020	1260	1260	1660	1660
	Height (mm)	1310	1600	1600	1700	1700

Two-stage PM VSD Air Compressor Series Specification 90kw-185kw

Model			DKS-90VT	DKS-110VT	DKS-132VT	DKS-160VT	DKS-185VT
Motor	Power(kw)		90	110	132	160	185
Motor	Horsepower(ps)		125	150	175	220	250
Air displacement/ Working pressure (M³/Min./MPa)			20.8/0.7	25.5/0.7	29.6/0.7	33.6/0.7	39.6/0.7
			19.8/0.8	24.6/.0.8	28.0/0.8	32.6/0.8	38.0/0.8
			17.5/1.0	20.51.0	23.5/1.0	28.5/1.0	32.5/1.0
			14.3/1.3	17.6/1.3	19.8/1.3	23.8/1.3	27.6/1.3
Air outlet diameter			DN65	DN65	DN80	DN80	DN80
Lubricating oil volume (L)			120	120	120	140	140
Noise level dB(A)			76±2	76±2	76±2	78±2	78±2
Driven method			Direct driven	Direct driven	Direct driven	Direct driven	Direct driven
Start method			PM VSD	PM VSD	PM VSD	PM VSD	PM VSD
Weight (kg)			2800	3160	3280	3390	3590
Extenal dimensions		Length (mm)	2450	3150	3150	3800	3800
		Width (mm)	1660	1980	1980	1980	1980
		Height (mm)	1700	2150	2150	2150	2150