Product Description
mixed-flow compressor and axial compressors and vane compressors
I. Introduction:
Variable frequency conception:
Our variable frequency series screw compressor takes advantage of the stepless speed regulation of the frequency charger, and start screw air compressor gently through the controller or the PID regulator inside of the controller to improve the start and operation mode of the motor.
Prediction and evaluation of energy saving:
If the air compressor frequently upload and unload during the operation and particularly the steady pressure output is needed, it is necessary to use air compressor frequency changer to control air compressor to achieve the effect of energy saving in a certain range.
Steady pressure:
The air compressor frequency changer aims at a the larger fluctuations of air volume. Internal PID regulator can quickly adjust the response. Compared with the limit switch control of operating with motor in constant frequency, the stability of the air pressure output increases exponentially, keeping on a constant point.
Start with no impact:
For the frequency changer has the function of the soft start, the start-up current is 3 times lesser than the power frequency startup. So the impact of the startup is smaller.
Variable flow control:
Based on the PID regulator and the actual air consumption to adjust the motor speed at a real time, to control the emission output and to achieve a equilibrium air supply. When low consumption, the air compressor can sleep automatically to reduce the energy loss. The optimized control further improves the energy-saving efficiency.
Better voltage adaptability of AC power supply
Due to the over modulation technique used in frequency changer, while in low AC power supply voltage, it still outputs the enough torque to drive the motor to work. While in high AC power supply voltage, it will not lead to a higher voltage output to motor.
II. Technical specification
| Model | EV7.5A | EV11A | EV15A | EV18.5A | EV22A | EV30A | EV37A/W | EV45A/W | EV55A/W | EV75A/W | EV90A/W | EV110A/W | EV132A/W | EV160A/W | EV185A/W | EV200A/W | EV220A/W | EV250A/W | EV280W | EV315W | EV355W | |
| Free air delivery/Discharge air pressure (M3/min/ Mpa) | 1.2/0.7 | 1.7/0.7 | 2.4/0.7 | 3.1/0.7 | 3.7/0.7 | 5.2/0.7 | 6.5/0.7 | 7.5/0.7 | 10.5/0.7 | 13.5/0.7 | 16.5/0.7 | 20.5/0.7 | 25.8/0.7 | 28.8/0.7 | 32/0.7 | 40/0.7 | 40/0.7 | 45/0.7 | 51.3/0.7 | 55/0.7 | 64/0.7 | |
| 1.1/0.8 | 1.6/0.8 | 2.3/0.8 | 3/0.8 | 3.5/0.8 | 5/0.8 | 6.3/0.8 | 7.2/0.8 | 9.5/0.8 | 13/0.8 | 16/0.8 | 19/0.8 | 23/0.8 | 27/0.8 | 30/0.8 | 37/0.8 | 37/0.85 | 42/0.8 | 50.2/0.8 | 50.3/0.8 | 58/0.8 | ||
| 1/1.0 | 1.4/1.0 | 2.2/1.0 | 2.8/1.0 | 3.0/1.0 | 4.1/1.0 | 5.8/1.0 | 7.0/1.0 | 8.5/1.0 | 11/1.0 | 14/1.0 | 17.5/1.0 | 20.2/1.0 | 23.8/1.0 | 27.5/1.0 | 33/1.0 | 34/1.0 | 38/1.0 | 43/1.0 | 47/1.0 | 50/1.0 | ||
| 0.8/1.3 | 1.2/1.3 | 1.7/1.3 | 2.3/1.3 | 2.5/1.3 | 3.7/1.3 | 25.0/1.3 | 6.0/1.3 | 7.5/1.3 | 9.5/1.3 | 12/1.3 | 14/1.3 | 18/1.3 | 21/1.3 | 24/1.3 | 28/1.3 | 31/1.25 | 33/1.3 | 33/1.3 | 41.9/1.3 | 42/1.3 | ||
| Air supply temperature | ≤ambient temperature +8~`15ºC | |||||||||||||||||||||
| Motor | Power (kw/hp) | 7.5/10 | 11/15 | 15/20 | 18.5/25 | 22/30 | 30/40 | 37/50 | 45/60 | 55/75 | 75/100 | 90/120 | 110/150 | 132/175 | 160/215 | 185/250 | 200/270 | 220/300 | 250/340 | 280/380 | 315/420 | 355/480 |
| Start method | Y-△Starter | |||||||||||||||||||||
| Voltage (v/hz) | 380V 3PH 50HZ (380V-3PH-60HZ/ 460V- 3PH- 60HZ/ 220V- 3PH-60HZ/ 400V-3PH-50HZ/6000V-3PH-50HZ/other voltagesd can be customized ) | |||||||||||||||||||||
| Drive method | V-belt transmission / Coupling transmission | |||||||||||||||||||||
| Oil content (PPM) | ≤3 | |||||||||||||||||||||
| Connector inch | 3/4″ | 3/4″ | 1″ | 1″ | 1″ | 1 1/4″ | 1 1/4″ | 1 1/2″ | 1 1/2″ | 2″ | 2″ | 2 1/4″ | 2 1/2″ | 2 1/2″ | 3″ | DN100 | DN100 | DN100 | DN150 | DN150 | DN150 | |
| Noise(Db)±2 | 56 | 58 | 60 | 60 | 60 | 66 | 66 | 66 | 70 | 71 | 71 | 73 | 75 | 77 | 78 | 80 | 80 | 82 | 84 | 85 | 86 | |
| Dimension | length mm | 1290 | 1290 | 1290 | 1290 | 1380 | 1380 | 1600 | 1900 | 1900 | 2440 | 2560 | 2760 | 2760 | 2860 | 2860 | 3250 | 3800 | 3800 | 3800 | 3900 | 3900 |
| width mm | 900 | 900 | 900 | 900 | 900 | 900 | 955 | 1200 | 1200 | 1300 | 1300 | 1340 | 1340 | 1510 | 1510 | 1800 | 2000 | 2000 | 2000 | 2100 | 2100 | |
| height mm | 1190 | 1190 | 1190 | 1190 | 1150 | 1150 | 1365 | 1600 | 1600 | 1620 | 1620 | 1710 | 1710 | 1810 | 1810 | 2050 | 2050 | 2050 | 2050 | 2150 | 2150 | |
| Weight (kg) | 400 | 500 | 550 | 650 | 680 | 1000 | 1050 | 1200 | 1350 | 1800 | 2150 | 2900 | 3000 | 3800 | 4300 | 5000 | 5500 | 6000 | 6200 | 6500 | 6700 | |
III. CE & ISO Certificates:
Package photos:
On-site photos:
IV. Company Introduction
ZheJiang CZPT COMPRESSOR CO., LTD. is 1 UK wholly-owned compressor company, which was situated in ZheJiang in 2004, based in technical cooperation with European air end manufacturer and British O.S.G. OSG ZheJiang specializes in manufacturing the world-class screw compressors and air purification equipments.
In order to meet customers’ expectations and requirements, OSG ZheJiang integrates the compressing system to embody the merits of reliability, energy saving, silence, convenience. OSG ZheJiang had obtained the compressor production license (certificate No: XK06-571-0571), quality certificate and general machinery certificate, ISO 9001:2008 certificate and CE certificate.
OSG has established a nation-wide service system of 40 offices, and provided comprehensive services, such as consulting, training, repairing, spare parts supplying, etc. OSG ZheJiang also do OEM for trading companies and agents, according to their requirements.
OSG ZheJiang welcome customers and engineers all over the world to study, train and cooperate. Welcome to OSG ZheJiang .
V. Company Advantages
1.Enormous potentiality, long history
ZheJiang CZPT Compressor Co., Ltd. is 1 British wholly-owned enterprise. Currently in China, OSG has set up 3 major manufacturing bases (ZheJiang CZPT Compressor Co., Ltd, ZHangZhoug Ulite Tools Co.,Ltd., ZheJiang OSG welding), 5 Manufacturers. Meanwhile we cooperate with the European world-advance air end manufacturer. OSG ZheJiang possesses a complete production, sales and after-sales service system. OSG has 40 offices and more than 80 after-sales service centers, and products are sold to more than 20 countries.
2. Advanced configuration, world-renowned components, abundant production experience.
The control system is the most advanced. The controller is designed and manufactured by Schneider, France. It is equipped with the large Chinese-English liquid crystal display screen. It can monitor more than 20 main operating parameters, and has the functions of fault recording, maintenance and alarm shutdown. It can achieve efficient intelligent control, unattended.
Remote control: the computer processor can directly check the user’s real-time operating system. Combine the reliability, energy saving, practicality in one. remote control can start, stop, load, unload the compressor and also other local control can be carried out. The operation, alarm and fault and relative local information can be monitored. (detailed description followed)
Remote control function:
Multiple compressors remote centralized control: reduce system pressure, reduce energy consumption, real-time monitoring.
Dual pressure setting: Two system pressure bands can be set manually or automatically to optimize energy use and reduce operating costs.
Delayed secondary shutdown: This function controls the motor to run only when needed, allowing the motor to run less and minimize the energy consumption.
Axle Spindle Types and Features
The axle spindle is an integral part of your vehicle’s suspension. There are several different types and features, including mounting methods, bearings, and functions. Read on for some basic information on axle spindles. The next part of the article will cover how to choose the correct axle spindle for your vehicle. This article will also discuss the different types of spindles available, including the differences between the rear and front bearings.
Features
The improved axle spindle nut assembly is capable of providing additional performance benefits, including increased tire life and reduced seal failure. Its keyway features and radially inwardly extending teeth allow nut adjustment to be accomplished with precision. The invention further provides a unique, multi-piece locking mechanism that minimizes leakage and torque transfer. Its principles and features are detailed in the appended claims. For example, the improved axle spindle nut assembly is designed for use in vehicles that are equipped with a steering system.
The axle spindle nut assembly includes a nut 252 with threads 256 on its inner periphery. The axle spindle 50 also features threads 198 on its outer periphery. The nut is threaded onto the outboard end of the axle spindle 50 until it contacts the inboard surface of the axle spacer 26. In the assembled state, a bearing spacer 58 is also present on the axle spindle.
The axle spindle nut assembly can reduce axial end play between the wheel end assembly 52 and the axle spindle 50. It can be tightened to an extreme torque level, but if the thread faces separate, it will undercompress the bearing cone and spacer group. To minimize these disadvantages, the axle spindle nut assembly is a critical component of a wheel-end assembly. There are several types of axle spindle nuts.
The third embodiment of the axle spindle nut assembly 300 comprises an inner washer 202, an outer washer 310, and at least 1 screw 320. The axle spindle nut assembly 300 secures and preloads bearing cones 55, 57. Unlike the first embodiment, the axle spindle nut assembly 300 uses the inner washer 202, which is optional in the third embodiment. The inner washer 202 and outer washer 310 are similar to those of the first embodiment.
Functions
An axle spindle is 1 of the most important components of a vehicle’s suspension system. The spindle retains the position of bearings and a spacer in an axle by providing clamp force. The inner nut of an axle spindle should be properly torqued to ensure a secure fit. A spindle nut is also responsible for compressing bearings and spacers. If any of these components are missing, the spindle will not work properly.
An axle spindle is used in rear wheel drive cars. It carries the weight of the vehicle on the axle casing and transfers the torque from the differential to the wheels. The axle spindle and hub are secured on the spindle by large nuts. The axle spindle is a vital component of rear wheel drive vehicles. Hence, it is essential to understand the functions of axle spindle. These components are responsible for the smooth operation of a vehicle’s suspension system.
Axle spindles can be mounted in 3 ways: in the typical axle assembly, the spindles are bolted onto the ends of the tubular axle, and the axle is suspended by springs. Short stub-axle mounting uses a torsion beam that flexes to provide a smooth ride. A second washer is used to prevent excessive rotation of the axle spindle.
Apart from being a crucial component of the suspension system, the spindles of the wheels are responsible for guiding the vehicle in a straight line. They are connected to the steering axis and are used in different types of suspension systems. European cars use a MacPherson Strut suspension system in which the spindle is connected to the arms in the front and rear of the suspension frame. The MacPherson strut allows the shock absorber housing to turn the wheel.
Methods of mounting
Various methods of mounting axle spindle are available. In general, these methods involve forming a tubular blank of uniform cross section and thickness, and receiving the bearing assembly against it. The spindle is then secured using a collar, which also serves as a bearing stop. In some cases, additional features are used to provide greater security. Some of these features may not be suitable for all applications. But they are generally suitable.
Axle spindle forming is usually done by progressive steps using hollow punches. The metallic body of the punch has an inner work surface, which receives the axle blank. A mandrel is fixed within the work opening of the punch. The punch body’s work surface forges the spindle about the mandrel. The punch has 2 ends, a closed and an open one.
A wheeled vehicle axle assembly (10) includes a cylindrical housing member (12 a) and a plurality of spindle mounting flanges (30) secured on the housing member. The spindles (16) are firmly attached to the housing member by means of coupling members. The coupling members are configured to distribute the bending loads imposed on the spindle by the axle. It is important to note that the coupling members can be either threaded or screwed.
Traditionally, axle spindles were made from tubular blanks of irregular thickness. This method allowed for a gradual reduction in diameter and eliminated the need for extra metal within the spindle. Similarly, axles made by cold forming eliminate the need for additional metal in the spindle. In this way, the overall cost of manufacture is also reduced. The material used for manufacturing axles also determines the size and shape of the final product.
Bearings
A nut 16 is used to retain the wheel bearings on axle spindle 12. The nut comprises several parts. The first portion includes a plurality of threads and a deformable second portion. The nut may be disposed on the inboard or outboard end of the axle spindle. This type of nut is typically secured to the axle spindle by a retaining nut.
The bearings are installed in the spindle to allow the wheel hub to rotate. While bearings are greased, they can dry out over time. Consequently, you may hear a loud clicking sound when turning your vehicle. Alternatively, you may notice grease on the edges of your tires. Bearing failure can cause severe damage to your axle spindle. If you notice any of these symptoms, you may need to replace the bearings on your axle spindle. Fortunately, you can purchase the necessary bearing parts at O’Reilly Auto Parts.
There are 3 ways to mount an axle spindle. A typical axle assembly has the spindles bolted to the ends of the tubular axle. A torsion beam is also used to mount the spindles on the axle. This torsion beam acts like a spring to help make the ride smooth and bump-free. Lastly, the axle spindle is sometimes mounted as a bolt-on component.
Cost
If your axle spindle has been damaged, you may need to have it replaced. This part of the axle is relatively easy to replace, but you need to know how to do it correctly. To replace your axle spindle, you must first remove the damaged one. To do this, a technician will cut the weld. They will then thread the new 1 into the axle tube and torque it to specification. After that, they will weld the new axle spindle into place.
When you are thinking about the cost of an axle spindle replacement, you must first determine if it is worth it for your vehicle. It is generally a good idea to replace the spindle only if it is causing damage to your vehicle. You can also replace your axle housing if it is deteriorating. If you do not replace the spindle, you can risk damaging the axle housing. To save money, you can consider using a repair kit.
You can also purchase an axle nut socket set. Most wrenches have an adjusting socket for this purpose. The socket set should be suitable for most vehicle types. Axle spindle replacement costs around $500 to $600 before tax. However, you should be aware that these costs vary widely based on the type of vehicle you have. The parts can cost between $430 and $480, and the labor can cost anywhere from $50 to 70.
