Model Number: A500-4T7R5GB/011PB
Warranty: 18 months, 18 Months
Type: speed driver
Certification: CE/ISO9001
Size: 248*138*170mm
Customized: Yes
Control Mode: vector control
Rated Power: 7.5kw
Nominal Voltage: 380v
power phase number: 3
Product name: Variable Frequency Drive
Color: Black
Power: 7.5kw
WEIGHT: 3.75kg
Output Current: 17.0/20.0A
Input voltage: 380V
CONTROL MODEL: vector control
Application: Industrial Equipment Ect
OEM: Support
Packaging Details: Carton Packaging

Products Description A500 seriesSynchronous motor open loop vector control driver. Can be used to drive synchronous motor, widely used in air compressor, cable, textile and hoist and other industriesOptimized vector control universal frequency converter, G/P in one. Can be used to drive asynchronous motor and torque motor,widely used in CNC machine tools, cable, paper making, lifting, lifting, fan water pump, petrochemical, air compressor, textilemachinery, plastic machinery, woodworking machinery, ceramic machinery, stone machinery and other industries

DescriptionFrequency Inverter
Power Range0.4kw ~ 630kw
Voltage220v ~ 380v (Range -20% ~ 20%)
Phase No.1 ~ 3
Performance and features High stabilization accuracy and wide adjustment rangeSteady speed accuracy: ±0.5% (SVC)Speed ​​range: 1:200 (SVC) Torque response: ≤ Hot sale low noise oil free portable air compressor 50L 40ms (SVC) Heavy load overload capacity: 110% rated stable operation, 150% rated load 1min, 180% rated load Excellent overcurrent suppression performanceSudden load, sudden load measured current waveformTypical application machine tools, mixers, ball mills, centrifuges, conveyor belt lights and other load mutation occasions High starting torque functionSpeed ​​torque test at full loadMotor output rated torque 102.4Nm at full load CZPT control speed fluctuation measured 0.2% SVCcontrol steady speed accuracy measured 0.4% Fast current limiting technologyMinimize the probability of inverter reporting overcurrent Instantaneous stop and non-stop functionIn the case of instantaneous power failure, the inverter will not stop. In the case of instantaneous power failure or suddenvoltage reduction, the inverter reduces the output speed, and compensates the voltage reduction through the load feedback energy,so as to maintain the inverter short time operation Industry-leading speed tracking performanceThe 0.3S realization belt is the direction speed tracking start. Typical applications Fans, punches and other occasions thatrequire speed tracking Applications Pump Fan Compressor Injection molding machine Digital controlled machine tool Textile machine Products details Naming rules and Nameplate A500 series specification
ModelInput voltageOutputcurrent (A)Matched motor(kw)Matched motor(kw)
A500-3SR4G1 phase: 220VRange:-15%~20%2.30.4173*96*140
A500-4TR75GB3 phase: 380VRange: -20%~20%2.10.75173*96*140
Why Us? Over 10 years experience,focus on VFD research and development, sales and service Obtained ISO, CE certificates Provide 24Hrs online service and 3-5 days fast ship We are an original manufacturer of OEM& Vietnam Famous Brand God-Star 27hp 4WD Mini Agricultural Tractor Good Quality Small Agricultural Tractor ODM VFD, and with a guarantee of up to 18 months We provide complete user manual, spare parts, video installation instructions Company Information ZheJiang SOURZE ELECTRIC CO.,LTD IS A SUBSIDIARY OF HangZhou SWEET TECHNOLOGY CO., LTD AND HAS REGISTERED ITS OWN TRADEMARK”SOURZE DRIVES”.SWEET TECHNOLOGY BASED ON THE POWER ELECTRONICS TECHNOLOGY AND MOTOR DRIVE CONTROL TECHNOLOGY WITH COMPLETELY INDEPENDENTINTELLECTUAL PROPERTY RIGHT, FOCUSES ON THE RESEARCH AND DEVELOPMENT, MANUFACTURING, SALES AND SERVICE OF LOW AND MEDIUM VOLTAGEINVERTER, INTEGRATED AND SPECIAL AIRCRAFT, SERVO DRIVE, ELECTRIC VEHICLE MOTOR CONTROLLER, INVERTER AND OTHER POWER ELECTRONICSPRODUCTS. OUR LOW AND MEDIUM VOLTAGE FREQUENCY CONVERTERS, SERVO DRIVES ARE WIDELY USED IN WOODWORKING MACHINERY, LIFTING, STONE, HVAC, CZPT 185 180 cfm used power driven air-compressor 40hp 180cfm industrial rotary screw air compressor air compressor for sale MACHINE TOOLS, METAL PRODUCTS, WIRE AND CABLE, PLASTIC, PRINTING AND PACKAGING, TEXTILE CHEMICAL FIBER, BUILDING MATERIALS,METALLURGY, COAL, MUNICIPAL, AUTOMOBILE, RAIL TRANSIT AND OTHER INDUSTRIES. Certificates Production Line Raw material PCB board testing Software loading Welding Painting Assembly Aging test Performance testing Packing Sweet Family Packaging & Shipping FAQ Q1: What’s the function of your VFD?A1: Our VFD control the speed and frequency of motors, which is widely used in industrial control, automation system and pump system.Q2: What’s the quality of your VFD?A2: our VFD has CE certificate. For each piece we have 4 times testing before delivery. All testing strictly follow ISO 9001 standard. Q3: What’s the lead time?A3: 3-5 days, it depends on quantity. Q4: How to choose suitable VFD for my machine? A4: Please send us your machine details, we will provide you most suitable model type. Q5: Do you support OEM service? A5: Yes, nylon wire rope wheel roller PA6 POM PTFE plastic bearing pulley sheave guide pulley we support OEM and ODM. For some items we have MOQ. For more questions, feel free to send us inquiry. Q6: What’s your quality guarantee period? A6: 18 mnonths. Q7: Do you accept OEM business? A7: Sure.


Worm gear reducer

Cheaper than planetary gearboxes In many cases, worm gear reducers are a popular alternative to planetary gearboxes. A worm gear reducer is a mechanical device with vertical input and output shafts. This allows for very high reduction ratios. They are typically used in high-reduction situations such as machine tools.
Worm gears are cheaper than traditional gearboxes. They also have many benefits, including noise reduction. The output shaft of the worm gear reducer is almost 90 degrees from the motor input shaft, making it ideal for high-torque applications.
The worm gear reducer adopts an aluminum body, which is light in weight and high in operation efficiency. Additionally, they are available with hollow shafts and mounting flanges. In terms of initial cost, worm gear reducers are cheaper than planetary gearboxes. In addition, they have better efficiency and longer service life.
Worm drives are also ideal for portable battery-powered lifting equipment. The high gear ratio of the worm gear ensures that it does not reverse drive. The worm gear has a spring-applied brake that holds the motor in place.
Planetary gearboxes are popular among industrial users. The efficiency of planetary gearboxes is important for practical applications.


The compact worm gear unit consists of a housing with an inner cavity. It has two side walls, one on either side of the front cover (13) and one on both sides of the rear cover (14). The front end cap is screwed onto the housing and the inner cavity is accessed through the rear end cap.
The compact worm gear unit can be configured to suit your application. They have many advantages, including saving space and increasing torque. The range includes single-envelope and double-envelope versions, available in a number of different power ratings. Additionally, they are IP65-rated, making them ideal for applications involving high radial or axial forces.
The compact worm reducer is a simple but effective worm drive. Its worm gear 16 meshes with the output shaft and rotates relatively stably. It also has a front-end cap and rear bearing. This enables the compact worm reducer to reduce vibration without damaging the output shaft.
Compact worm gear reducers are ideal for many applications and offer high efficiency. The compact design means you can mount them on the motor’s flange or base. Its durable construction makes it ideal for a variety of industries. They are extremely durable and can handle high-pressure and washdown conditions. They also come standard with a synthetic shaft.

high efficiency

High-efficiency worm gear reducers are ideal for applications that require precision, repeatability, and efficient performance. These reducers are designed with state-of-the-art servo motor technology to provide tight integration and an angular backlash of less than two arc minutes. The reduction ratio can be lower if the application requires it.
Rising energy costs have led to an increased focus on the efficiency of drives. In response to this, manufacturers have increased the efficiency of worm gear reducers through a number of technical improvements. By minimizing losses from rolling and sliding friction, worm gear reducers are more efficient than their counterparts.
The high-efficiency worm reducer is simple in design and has the characteristics of a compact structure, high-speed ratio, low power consumption, and self-locking. Other advantages of these reducers include low noise and long service life. Many also have built-in control systems that allow manual and remote adjustments. They also feature automatic shutdown protection and thermal protection.
High-efficiency worm reducers can be used for mechanical acceleration. The input hypoid gear is usually made of steel, while the output hypoid gear is usually made of bronze. Bronze is a soft metal that is good at absorbing shock loads. However, bronze requires work hardening to achieve optimum hardness. For large worm gears, this process can take 300 to 550 hours.

low clearance

A low-clearance worm reducer is a device used to adjust the speed of a rotating shaft. It uses a worm gear consisting of two members. One worm is at one end of the shaft and the other is at the other end. Both worms are screwed into the synchronous drive structure.
Low clearance worm gear reducers can be produced on conventional worm gear production lines without overlapping investments. These units are usually made of soft rubber. Also, they are relatively quiet in operation. These machines are designed so that they are suitable for use in elevators. The softer material in the worm gear also helps absorb shock loads.
The tooth profile of the worm gear is designed to change with the axial movement of the worm. Worms have thinner right teeth and thicker left teeth. As the worm moves to the right, its teeth mesh with the worm gear, reducing backlash.
There are many different types of worm gears. The design of gears depends on many factors, including backlash, thermal design, friction factors and lubrication. Worm gears are made of several different materials. Some different types of materials used in worm gears require special lubrication.


The quieter worm reducer is designed to reduce the noise level of the rotating gear motor. The device has more gear teeth in meshing contact with the gears, which helps it run more quietly. In addition to being quieter than other transmissions, it’s also less expensive than its counterparts.
Worm gearboxes can be used for different applications, but they are not as efficient as helical gearboxes. Worm reducers are cheaper but less than 90% efficient. Higher gear ratios reduce efficiency, so worm gear reducers are better suited for applications that require low-speed torque. The cost of buying a worm gearbox will depend on the horsepower and gear ratios required.
Worm reducers are also more comfortable to use than planetary gearboxes. They don’t vibrate and heat up quickly, making them an excellent choice for low to medium horsepower applications. Worm gear reducers can be upgraded to improve their performance by combining with other gear trains or gearboxes.

easy to replace

An easily replaceable worm gear reducer can save you a lot of money. A worm gear reducer is part of a chain drive and allows you to change gear ratios quickly and easily. Worm gear reducers can be easily replaced in a number of ways. It’s a good idea to read the manufacturer’s manual before replacing a worm gear reducer. Make sure you have the instructions available so you can refer to them in the future.
Worm gear reducers offer many advantages, including long service life and low noise. They are also designed with a 90-degree output shaft for easy installation. Another advantage of these gear reducers is that they can be used with both solid and hollow output shafts. This means less maintenance and downtime.
Worm gear reducers are widely used. Most gear manufacturers have large inventories. Worm gears also have uniform mounting dimensions. Dimensional consistency means you don’t have to worry about matching the shaft length and diameter to the worm gear. You can easily find a replacement worm gear reducer for your equipment.
When replacing the worm gear reducer, check the lubricating oil recommended by the machine. If not included, use original gear oil. Be sure to follow the manufacturer’s instructions carefully.

China 7.5kw9.0kw Frequency converter VFD Variator for industrial 380V vfd     premium worm reducer	China 7.5kw9.0kw Frequency converter VFD Variator for industrial 380V vfd     premium worm reducer
editor by Cx 2023-07-13