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Direct Driven Variable Speed Screw Compressor VSD With PLC Control

Good quality Screw Air Compressor for sales
Good quality Screw Air Compressor for sales
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We had bought compressor from WAN BEARDSLEY many times. WB is as good as world famous brand! They have the most in time post-sale service.

—— Donni Sulistyo

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Direct Driven Variable Speed Screw Compressor VSD With PLC Control

China Direct Driven Variable Speed Screw Compressor VSD With PLC Control supplier

Large Image :  Direct Driven Variable Speed Screw Compressor VSD With PLC Control

Product Details:

Place of Origin: Shanghai, China
Brand Name: Wan Beardsley
Certification: ISO9001, CE
Model Number: WZS-100EVA

Payment & Shipping Terms:

Minimum Order Quantity: Negotiation
Price: Negotiated
Packaging Details: exporting wooden case / plywood case
Delivery Time: 1-15 workdays after deposit.
Payment Terms: T/T, L/C
Supply Ability: 500 sets per month
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Detailed Product Description
Name: Variable Speed Screw Compressor Power: 75kW
Control: PLC Control Air End: HANBELL (AB)
Motor Grade: IP55/54 Power Supply: 220/380/440V 50/60Hz 3Ph
Transmission Mode: Direct Driven Bearing: SKF
Lubrication Style: Wan Beardsley Brand Lubricated Oil INVERTER: HOLIP / VEICHI Brand

Direct Driven Variable Speed Screw Compressor VSD With PLC Control


Efficiency​ of Variable Speed Screw Compressor


Efficiency is mainly decided by two parts of the air compressor. The first part is the host. It is easy for us to understand more air volume at cost of same power consumption means higher efficiency. The second part is electric motor. Permanent magnet motor and high efficient motor are common on current air compressors. Compared with ordinary electric motors, permanent magnet motors present higher efficient, higher power factor, and higher detent torch. Permanent magnet (synchronous) electric motors show the same detent torch as other synchronous electric motors. Without rotor windings, these permanent magnet motors show lower power consumption, because rotor excitation is unnecessary. However, permanent magnet motors need frequency converters which consume certain power. The test proves efficiency of low power permanent magnet motors remains higher than that of ordinary motors after adding frequency converters. We can use high efficient motors at high power stage to improve operation efficiency. On the other hand, characteristics of permanent magnet motors decide that they can maintain the same efficiency even at lower rotation speed. However, efficiency of ordinary motors declines with decreasing of rotation speed, showing a parabola curve
Variable Speed Screw Compressor Detailed Specifications:







Air flow




Compression stages

Outlet diameter






WZS-30EVA 22 8 3.8 66±2 Single 1¼” 1380 850 1150 620
10 3.0
WZS-40EVA 30 8 5.0 68±2 Single 1¾” 1380 850 1150 680
10 4.4
WZS-50EVA 37 8 6.8 68±2 Single 1½” 1600 1000 1370 850
10 5.4
WZS-60EVA 45 8 8.0 68±2 Single 1½” 1600 1000 1370 880
10 6.8
WZS-75EVA 55 8 9.7 69±2 Single 2” 1700 1270 1500 1350
10 8.6
WZS-100EVA 75 8 13.2 70±2 Single 2” 2150 1300 1700 1650
10 11.6
WZS-125EVA 90 8 15.0 70±2 Single 2” 2150 1100 1500 1950
10 14.6
WZS-150EVA 110 8 19.0 71±2 Single DN65 2550 1650 1850 2600
10 17.0
WZS-180EVA 132 8 23.0 72±2 Single DN65 2550 1650 1850 2880
10 20.0
WZS-200EVA 160 8 26.5 75±2 Single DN80 2950 1800 1850 3200
10 22.5


Company profile:


Wan Beardsley Compression Machine (Shanghai) Co., Ltd is a medium and large-sized enterprise specialized in research, development and production of air compressors. By virtue of fruitful technological strength and advanced and complete production and testing equipments, this company pursues enterprise tenet “Achieve high quality with conscientiousness and create a centennial brand with quality”, strictly performs the commitment “be the most energy-efficient screw air compressor”, continuously seeks for sustainable improvement of products, process and system, and increasingly improves product properties, quality and reliability so as to make out R & D and manufacturing capacity step onto a new stair in manufacturing technology of air compressor. Our product quality has reached internally first-class level, and some products have been exported to and supported Southeast Asia and European and American markets.


1)Pre-sale services:
24 hours' online service for the prompt reply.

2)Sale services:
Our professional engineer team will provide you the satisfied scheme according to your demand.

3)After-sale services:
To offer the better service, we will do the satisfaction survey for each sale experance and regularly pay return visit to customers.

Contact Details
Wan Beardsley Compressor (Shanghai) Co., Ltd

Contact Person: Ben Wang

Tel: +8617321079732

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