China Supplier Sanzhi 250kw 50Hz Permanent Magnet AC Power VSD Screw Air Compressor for Heavy Industry

• Customization: Available
• After-sales Service: Online Technology Support
• Warranty: 1 Year for The Whole Machine & 2 Years for Airend
• Model NO.: SZ250VF
• Lubrication Style: Lubricated
• Cooling System: Air Cooling
• Power Source: AC Power
• Cylinder Position: Vertical
• Structure Type: Closed Type
• Installation Type: Stationary Type
• Type: Twin-Screw Compressor
• Pressure: 0.8-1.3 MPa
• Volumetric Flow: 40-33 M³/Min
• Working Temperature: <Ambient Temperature+15ºC
• Air Outlet Discharge Size: DN80 Inch
• Power: 250kw
• Weight: 4100kg
• Voltage: 220V / 380V / 415V / 440V 3pH
• Condition: New
• Certification: ISO9001, SGS
• Transmission Mode: Direct Drive
• Transport Package: Wooden Package
• Specification: 2650*1650*1800m
• Trademark: SZ
• Origin: Zhengzhou, China
• HS Code: 8414804990
• Production Capacity: 500PCS/Month
• Package Size: 270.00cm * 170.00cm * 190.00cm
• Package Gross Weight: 4100.000kg

Product Description

Permanent Magnet Variable Frequency Screw Type Air Compressor, 7.5kw, 11kw, 15kw, 22kw, 30kw, 37kw, 45kw, 55kw, 75kw, 90kw, 110kw, 132kw, 160kw, 185kw, 200kw, 250kw

Detailed Photos

 

 

 

 

 

 

 

 

Product Parameters

 

Model	Power	Pressure	Free air delivery* of unit at working pressure	Cooling System	Working Temperature	Voltage	Frequency	Noise Level	Air outlet discharge size	Weight	Dimensions
	KW	Mpa	m³/min		ºC	V	Hz	dB(A)	Inch	Kg	L*W*H(mm)
SZ08VF	7.5	0.8	1.15	Air Cooling	<Ambient temperature+15ºC	380	50	65	G3/4	320	900*700*920
		1.0	1.00
SZ11VF	11	0.8	1.00-1.60	Air Cooling	<Ambient temperature+15ºC	380	50	65	G3/4	330	900*700*920
		1.0	0.90-1.50
		1.3	0.82-1.20
SZ15VF	15	0.8	2.30	Air Cooling	<Ambient temperature+15ºC	380	50	65	G1	450	1040*800*990
		1.0	2.20
		1.3	1.70
SZ22VF	22	0.8	1.00-3.60	Air Cooling	<Ambient temperature+15ºC	380	50	65	G1	550	1040*800*990
		1.0	0.90-3.00
		1.3	0.82-2.80
SZ37VF	37	0.8	6.60	Air Cooling	<Ambient temperature+15ºC	380	50	68	G1½	750	1430*1000*1300
		1.0	6.00
		1.3	4.80
SZ45VF	45	0.8	2.10-8.00	Air Cooling	<Ambient temperature+15ºC	380	50	68	G1½	1050	1430*1000*1300
		1.0	1.90-6.50
		1.3	1.80-5.60
SZ55VF	55	0.8	10.00	Air Cooling	<Ambient temperature+15ºC	380	50	72	G2	1450	1800*1200*1500
		1.0	8.80
		1.3	7.80
SZ75VF	75	0.8	3.30-13.00	Air Cooling	<Ambient temperature+15ºC	380	50	72	G2	1750	1800*1200*1500
		1.0	3.10-11.20
		1.3	2.70-10.5
SZ90VF	90	0.8	16.00	Air Cooling	<Ambient temperature+15ºC	380	50	72	G2	2000	2000*1200*1500
		1.0	11.20
		1.3	10.50
SZ110VF	110	0.8	5.20-20.50	Air Cooling	<Ambient temperature+15ºC	380	50	75	DN80	2550	2500*1500*1700
		1.0	4.90-19.00
		1.3	4.40-16.50
SZ132VF	132	0.8	24.00	Air Cooling	<Ambient temperature+15ºC	380	50	75	DN80	2950	2500*1500*1700
		1.0	22.00
		1.3	19.00
SZ160VF	160	0.8	7.30-29.00	Air Cooling	<Ambient temperature+15ºC	380	50	75	DN80	3150	2650*1650*1800
		1.0	6.50-26.20
		1.3	5.30-24.50
SZ185VF	185	0.8	32.00	Air Cooling	<Ambient temperature+15ºC	380	50	75	DN80	3500	2650*1650*1800
		1.0	29.00
		1.3	26.00
SZ200VF	200	0.8	36.00	Air Cooling	<Ambient temperature+15ºC	380	50	75	DN80	3860	2650*1650*1800
		1.0	33.00
		1.3	29.00
SZ250VF	250	0.8	40.00	Air Cooling	<Ambient temperature+15ºC	380	50	75	DN80	3860	2650*1650*1800
		1.0	36.00
		1.3	32.00
Due to product updates, the above parameters are subject to deviation in kind.

 

Product Structure

 

Working Principle

A permanent magnet frequency conversion air compressor adopts a pressure sensor to instantly sense the actual use pressure and air consumption in the system, and through the precise control of electric and frequency converter, it changes the motor speed without changing the torque of the air compressor motor, so as to regulate the system pressure in order to realize the output of compressed air according to the demand. When the system air consumption decreases, the amount of compressed air provided by the compressor is larger than the system air consumption, the inverter air compressor reduces the rotational speed, thus decreasing the amount of compressed air output; on the contrary, it raises the motor rotational speed to increase the amount of compressed air in order to maintain a stable system pressure.

Adopting vector control technology, the unit can operate at a wide range of speeds, and at the same time ensure that the motor temperature rise is minimized to get the appropriate and sufficient torque to drive the air compressor smoothly. The motor current consists of the torque component generated by the motor and other vector control technology distributes the current values of the motor to determine the values of the motor current component that generates torque and other current components. Vector control techniques can optimally compensate for this by responding to a voltage drop at the motor end, allowing the motor to output the maximum torque without increasing the current.


Advantages of Permanent Magnet Variable Frequency Screw Air Compressor

High efficiency and energy saving
Frequency conversion regulation can reduce the actual power consumption of frequency conversion compressor in the same proportion, and the energy can be effectively applied to air compression.

Cost Reducing
The energy cost of permanent magnet frequency conversion technology is reduced by more than 35%, and the life cycle cost of compressors can be reduced by an average of 22%. The extra cost of the compressor can be recovered within 1 to 2 years.

Steady Pressure
The PID(proportional, differential, integral) method is used to accurately adjust the exclusive compressor to maintain the stability of the system pressure.

Life Extension
Frequency conversion starts to reduce the impact of meta-collection on the power grid and machinery and prolong the service life.

Top quality
The use of Top-quality imported bearings and the latest research and development of rotor profile, large rotor, large displacement, low speed, low noise, improve efficiency and production quality.

 

Packaging & Shipping

Our Advantages

 

1. Price advantage

Direct to provide customers with ex-factory prices, so that customers are more competitive.

2. Direct deal
All products are supplied directly from the factory and we will offer more cost-effective products.

3. OEM & ODM services
The strong production and management capacity of the factory can provide OEM/ODM service for you.

4. Customised service
We accept non-standard orders, export orders, voltage/power/pressure, etc, which can be customized. If you have demands, please contact us.

5. Accept small order
You can place a small trial order first to test the quality of our products.

6. Fast delivery
High-quality products with timely delivery.

7. Complete authorisation
For distributors, we can provide the full authorization certificate to allow you to sell our SANZHI brand products.
 

More Products

 

 

Company Profile

Sanzhi (Henan) Compressor Co., Ltd is a manufacturer in the production of screw air compressors and screw vacuum pumps, with more than 10 years of experience. The extensive product range includes normal pressure/low-pressure screw air compressors, permanent magnet frequency conversion screw air compressors, two-stage compression screw air compressors, screw air compressors for laser cutting, single-tank mobile screw air compressors, double-tank mobile screw air compressor, electric mobile screw air compressor, diesel mobile screw air compressor, screw vacuum pump, etc.

In production, we are able to achieve the most efficient production by multi-air compressor assembly lines which are lean and modern. With the effort of over 50 employees, we continue to optimize management systems such as ERP to shorten the lead time and deliver qualified products at a fast speed.

In management, our factory passed ISO9001 quality management system certification. We always adhere to the implementation of the stringent quality management system, and strictly implement the standard quality control processes. The outgoing of each machine is an experience of material inspection, production inspection and pre-delivery inspection.

In customer service, on the hand of pre-sales, we offer our customers a professional guide to choosing air equipment for multiple facilities and supply with high customization like its appearance and allocation, and we are even able to create unique products to meet dealer's demand, that is OEM. Meanwhile, for after-sales, we staffed a professional sales & service team for quick response to customers.

We Sanzhi (Henan) Compressor Co., Ltd, devote ourselves to delivering superior and stable products, for building long-term relationships with our customers. Efficient delivery, qualified machine, and worthy price, we are reliable to provide you with a satisfactory compressed air solution.

Our factory is located in Xinzheng City, Henan Province, China. We can pick you up from Xinzheng International Airport to our factory, 30 kilometers in about one hour. Welcome to our company!
 

Certifications

 

FAQ

Q1. Are you a trading company or manufacturer?
A: We are a professional manufacturer of screw air compressors, with more than 10 years of experience.

Q2. How do you control quality?
A: 1. The raw materials are strictly inspected.
  2. Installation procedures are strictly controlled.
  3. Each machine must pass at least 5 hours of continuous testing before leaving the factory.

Q3. What information must I provide to get the suitable machine?
1. How much air delivery capacity (Unit: CFM or m³/Min)
2. How much working pressure (Unit: PSI, Bar or Mpa)
3. What is the voltage and frequency of my country of residence (V/Hz)
4. Whether I need other accessories such as an air tank, filters, and/or air dryers.
Tell us the answer, we will offer a scheme for you!

Q4. What is the general unit conversion?
1Bar = 0.1Mpa = 14.5PSI
1m³/min = 35.32cfm
1KW = 1.34HP

Q5. What is the available voltage air compressor?
A: Sanzhi available voltage include 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, 440v/60hz/3p, and can be customized according to your requirements.

Q6. How long is the delivery time?
A: For standard voltage,15 working days after the confirmed order. Non-standard, please contact our sales.

Q7. What's the payment term?
A: 30% T/T in advance, 40% T/T before shipment, and 30% T/T against the B/L copy. USD, RMB can be accepted.

Q8. How about your warranty?
A: One year for the whole machine and two years for screw air compressor, except for consumable spare parts.

Q9. What about the maintenance?
A: First maintenance needs to be done after 500 hours, and then every 2000-3000 hours to do the normal maintenance, and consider the actual environment.

Q10. Can machines be run in high-temperature environment?
A: Yes, machines would run in high-temperature environment countries. Working temperature from -20° to 45°(-4ºF-113ºF).

Q11. Do you offer OEM service?
A: Yes, with a professional design team, both OEM & ODM orders are highly welcome.

Q12. How long could your air compressor be used?
A: Generally, more than 10 years.

Q13. Will you provide some spare parts for the machines?
A: Yes, of course.

Q14. How about your after-sales service?
A: Provide customers with installation and commissioning online instructions, and arrange for our engineers to help you with training and installation.