Product Description

Key attributes

Industry-specific attributes

Rated Loading Capacity



Max. Lifting Height



Other attributes

Applicable Industries

Building Material Shops


Showroom Location



Video outgoing-inspection



Machinery Test Report



Marketing Type

Ordinary Product


Warranty of core components

3 months


Core Components




ZheJiang , China



3 months


Weight (KG)

20 kg



Tower Crane






Building Construction


Rated Lifting Moment






Brand Name




tower crane 3 phase motor


Product name

3 phase motor





Working radius (m)






Power Supply



Slewing Speed



Tip load

1.0 Ton


Main Material




3 Months


Packaging and delivery

Packaging Details

in wooden box



HangZhou and any other ports in china



Supply Ability

200 Set/Sets per Month


Show less 

Lead time

Quantity (sets) 1 – 100 > 100
Lead time (days) 8 To be negotiated

Product Description


Specifications :

The products are according to the followlng technical parameters .

Raw material control:

1.The steel material selected 100 % comes from our natlonal large-scale

steel corporations .

2.The critical materials that steel,welding material etc are all examed

by chemical detection , then They are allowed into workshop for batch


3.Strictly conforms to drawing requirements, we make the products with

16 Manganese,40 Chromium and 45#steel etc .

4,Every parts of our products that pins ,axles,sleeves etc are strictly

obey quenching and tempering procedures .

5,Every parts of our products strictly conforms to the procedure

requirements : mill ,plane, polish, press ,test etc in turn.

 6,As for have finished products ,we perform the requirements of the

ISO9001 Quality System and national standard strictly.

General introduction of tower crane main mechanisms .

( 1 ) Main raw material of tower crane’s body and tower-cap are 16

Manganese,Q345B Steels , which are selected from heavy wall seamless

steel pipe manufactured by Ansteel Steel Group.

( 2 ) Hoisting mechanism ” Jiuhe ” and ” HangZhou ” brand are provided by

national-level manufacturer. To adopt eddy current brake,four-speed

winding hoist.

( 3 ) Slewing bearing : appointed corporation of CHINAMFG Slewing

Bearing Factory .

( 4 ) Slewing mechanism : equipped with four-speed winding motor and “

Shengjian ” brand, the quality is the same with exporting supplier “

  ” .

( 5 ) Luffing mechanism is double-speed cone rotor motor, so It’s

needn’t refill gear lubricant or maintenance , and double-planetary


( 6 ) Electrical apparatus system : The main contactor is from

  or Siemens. The operating system is a high-quality product (

 integrated pellet ) ,which provided by Xihu (West Lake) Dis. Sangang ,and is

durable in use.

( 7 ) Welding : welding is carbon-dioxide shielded and automatic

submerged arc welding. Feature: advanced technology,strong


( 8 ) Driver cab : With arc space capsule , toughened glass , wide

field of vision , clear and safe ,auto wiper, air conditioner.

( 9 ) Basic mast section : square strengthened steel, repeatedly

applicable, convenient in tower crane displacement. But lower in cost.

( 10 ) Mast section : 3 CHINAMFG in length , strengthened bolted with

10.9 grade high-strength bolt . each mast section with 12 bolts .(

common manufacturers adopts 8.8 grade).


Jingchenglihe Trading (ZheJiang ) Co., Ltd. is a leading wholesaler of new and used trucks, trailers, excavators, and wheel loaders in China Established in 2015, the company has been providing high-quality products to its customers for over a decade. Jingchenglihe Trading (ZheJiang ) Co., Ltd. imports its products from China, Europe, and America, ensuring that its customers have access to the latest and most advanced equipment available in the market. The company’s commitment to quality and customer satisfaction has made it a trusted name in the industry. Jingchenglihe Trading (ZheJiang ) Co., Ltd. offers a wide range of products to meet the diverse needs of its customers. Whether you are looking for a heavy-duty truck for construction work or a trailer for transportation, the company has got you covered. In addition to its extensive product range, Jingchenglihe Trading (ZheJiang ) Co., Ltd. also provides excellent after-sales service to its customers. The company has a team of experienced technicians who are always ready to assist customers with any issues they may face with their equipment. This ensures that customers can rely on the company for all their equipment needs, from purchase to maintenance and repair.  This has helped the company expand its reach and establish itself as a regional player in the industry. In conclusion, Jingchenglihe Trading (ZheJiang ) Co., Ltd. is a reputable wholesaler of new and used trucks, trailers, excavators, and wheel loaders . With its commitment to quality, customer satisfaction, and excellent after-sales service, the company has become a trusted name in the industry. Its extensive product range and regional reach make it an ideal choice for customers looking for reliable and high-quality equipment.


1. who are we?
We are based in ZheJiang HangZhou China,sell to Africa(40.00%),Mid East(50.00%),South Asia(10.00%). There are total about 11-50 people in our office.

2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

3.what can you buy from us?
Truck Tractor Horse,Dump Truck,Commercial Truck Trailer,Truck Chassis,Excavator,Bulldozer,Mobile Crane,etc.

4. why should you buy from us not from other suppliers?
Since 2015 Supply Commercial Vehicles, Trucks horses, Dump Truck Tippers, Trailers, Tankers, Excavators, Wheel Loaders, Bulldozers Standard, Customized, New or Used, Different Size Benz, CHINAMFG HOWO, Shacman, FAW, CAT, Daewoo, Hyundai, OEM

5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FAS,Express Delivery;
Accepted Payment Currency:USD,CNY;
Accepted Payment Type: T/T,L/C,MoneyGram,Credit Card,Western Union,Cash;
Language Spoken:English,Chinese,French,Russian

Mr Cris
Jingchenglihe Trading (ZheJiang ) Co., Ltd.

Address: Room 701# Building 3. Luguya Garden. Xianjiahu West Road 409#, High-Tech Development Zone of HangZhou, HangZhou, ZheJiang , China

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After-sales Service: 24h X 7days
Warranty: 1 Year
Certification: GS, RoHS, CE, ISO9001
Condition: New
Maximum Lifting Height: 30-40m
Maximum Lifting Weight: >16t
US$ 500/Piece
1 Piece(Min.Order)




3 phase motor

How does a 3-phase motor ensure efficient and reliable operation?

A 3-phase motor is designed to ensure efficient and reliable operation through various mechanisms and features. Here’s a detailed explanation of how a 3-phase motor achieves efficient and reliable performance:

  • Rotating Magnetic Field: One of the key factors that contribute to the efficiency and reliability of a 3-phase motor is the creation of a rotating magnetic field. The three sets of stator windings, spaced 120 degrees apart, are energized by the three-phase power supply. This arrangement generates a rotating magnetic field within the motor. The rotating magnetic field interacts with the rotor, inducing currents that create torque and drive the rotation of the motor. The creation of a rotating magnetic field allows for smooth and efficient operation, minimizing vibrations and maximizing power output.
  • Higher Power Output: Compared to single-phase motors, 3-phase motors are capable of delivering higher power output. The balanced three-phase power supply and the design of the motor allow for efficient power transmission and higher torque production. This higher power output makes 3-phase motors suitable for applications that require greater horsepower and torque, such as industrial machinery, pumps, and compressors.
  • Efficiency: 3-phase motors are known for their high efficiency. The balanced three-phase power supply and the design of the motor contribute to reduced power losses and improved efficiency. The rotating magnetic field generated by the stator windings ensures smooth operation and minimizes energy wastage. As a result, 3-phase motors convert a higher percentage of electrical energy into mechanical energy, leading to energy savings and cost efficiency in the long run.
  • Reliable Starting Mechanism: 3-phase motors have a reliable starting mechanism that allows them to start on their own. With a simple direct-on-line (DOL) starting method, the motor can be connected directly to the power supply without the need for additional starting mechanisms. This ensures reliable and prompt motor startup, eliminating the need for manual intervention or complex starting circuits.
  • High Starting Torque: 3-phase motors typically exhibit high starting torque, which is crucial for overcoming the inertia and initial resistance of the connected load. The balanced three-phase power supply and the design of the motor enable the creation of a strong rotating magnetic field during startup. This results in a higher starting torque compared to single-phase motors, ensuring efficient and reliable motor operation even under heavy load conditions.
  • Durable Construction: 3-phase motors are constructed with durability in mind. The stator and rotor cores are made of laminated iron to minimize eddy current losses and improve magnetic performance. The windings are typically coated with insulating materials to protect them from environmental factors and ensure proper insulation. The motor housing or frame is designed to provide protection and support to the internal components. These design features contribute to the reliability and longevity of 3-phase motors in various operating conditions.
  • Thermal Protection: Many 3-phase motors incorporate thermal protection mechanisms to prevent overheating. These mechanisms may include thermal overload relays, temperature sensors, or embedded thermal switches. If the motor temperature exceeds a safe threshold, the thermal protection system activates and interrupts the power supply to prevent damage to the motor. This ensures reliable operation by preventing motor failure due to excessive heat.
  • Proper Maintenance and Lubrication: Regular maintenance and proper lubrication are essential for ensuring the efficient and reliable operation of 3-phase motors. Periodic inspections, cleaning, and lubrication of bearings, as well as checking the electrical connections and insulation, help maintain optimal motor performance and prevent premature failures. Following manufacturer guidelines and adhering to recommended maintenance practices contribute to the longevity and reliability of the motor.

These factors collectively contribute to the efficient and reliable operation of 3-phase motors. Their ability to deliver higher power output, high starting torque, and energy efficiency, combined with durable construction and proper maintenance, make 3-phase motors a preferred choice for a wide range of industrial, commercial, and residential applications.

3 phase motor

Can 3-phase motors be adapted for use in both small and large-scale applications?

Yes, 3-phase motors are highly adaptable and can be used in both small and large-scale applications. Here’s a detailed explanation of their adaptability:

  • Small-Scale Applications: 3-phase motors are available in a wide range of sizes and power ratings, making them suitable for small-scale applications. These motors can be found in various small industrial machines, appliances, and equipment. They are commonly used in small pumps, compressors, fans, conveyors, blowers, and other devices requiring reliable and efficient motor operation.
  • Large-Scale Applications: 3-phase motors are also well-suited for large-scale applications that demand high power and torque. They can be found in heavy-duty industrial machinery and equipment used in manufacturing plants, mining operations, oil refineries, and other industrial sectors. Large-scale applications of 3-phase motors include motor-driven compressors, generators, crushers, mills, conveyor systems, and large HVAC (heating, ventilation, and air conditioning) units.
  • Flexibility in Voltage and Frequency: 3-phase motors can operate with different voltage and frequency configurations, allowing for adaptation to various power systems worldwide. They can be designed and configured to accommodate specific voltage and frequency requirements, making them compatible with the electrical infrastructure of different regions and countries. This flexibility in voltage and frequency makes 3-phase motors suitable for both small and large-scale applications globally.
  • Motor Control Options: 3-phase motors can be coupled with various control devices and technologies to adapt to different application requirements. For small-scale applications, simple motor starters or contactors can provide basic control functionality. In contrast, large-scale applications often utilize more advanced control systems, such as variable frequency drives (VFDs) or adjustable speed drives (ASDs), which offer precise speed and torque control. These control options allow 3-phase motors to meet the specific needs of both small and large-scale applications.
  • Application-Specific Designs: Manufacturers offer a wide range of 3-phase motor designs and configurations to cater to different application requirements. Motors can be customized to meet specific performance criteria, environmental conditions, and industry standards. This adaptability allows 3-phase motors to be optimized for both small and large-scale applications, ensuring optimal efficiency, reliability, and performance.

Overall, the adaptability of 3-phase motors makes them suitable for a wide range of applications, from small-scale to large-scale. Their availability in various sizes, flexibility in voltage and frequency, compatibility with different control options, and ability to be customized for specific applications make them a versatile choice for different industrial needs. Whether it’s powering small machines or driving heavy-duty equipment, 3-phase motors can be adapted to meet the requirements of both small and large-scale applications.

3 phase motor

How does a 3-phase motor ensure consistent and reliable performance in machinery?

A 3-phase motor is designed to ensure consistent and reliable performance in machinery. Here’s a detailed explanation of how it achieves this:

  • Rotating Magnetic Field:
    • A 3-phase motor operates by creating a rotating magnetic field in its stator. This rotating magnetic field induces a current in the rotor, causing it to rotate.
    • The design of the 3-phase motor, with three separate windings spaced 120 degrees apart, ensures a smooth and continuous rotation of the magnetic field. This results in a consistent and reliable rotation of the motor’s rotor.
  • Power Distribution:
    • 3-phase motors are typically connected to a 3-phase power supply. The three phases of the power supply provide a balanced and continuous flow of electrical power to the motor.
    • This balanced distribution of power across the three phases helps maintain a consistent and steady supply of electrical energy to the motor. It ensures that the motor receives a continuous and reliable power source, minimizing fluctuations and interruptions in performance.
  • Higher Efficiency:
    • Compared to single-phase motors, 3-phase motors are known for their higher efficiency and smoother operation. The balanced three-phase power supply and the rotating magnetic field contribute to this superior performance.
    • The balanced power distribution reduces power losses and minimizes voltage drops, resulting in improved energy efficiency. Additionally, the rotating magnetic field provides a more uniform torque output, reducing vibrations and ensuring smoother operation.
  • Robust Construction:
    • 3-phase motors are constructed to withstand the demanding conditions often encountered in industrial machinery.
    • Their robust design, including sturdy frames, high-quality materials, and effective cooling mechanisms, enhances their durability and reliability. This allows 3-phase motors to consistently deliver reliable performance, even in challenging environments.
  • Motor Protection:
    • To ensure reliable performance, 3-phase motors are equipped with various protective features.
    • These may include thermal overload protection, which safeguards the motor against excessive heat by monitoring the motor’s temperature and tripping a protective device if it exceeds a safe threshold.
    • Other protective features may include voltage and current monitoring, short circuit protection, and phase failure protection. These mechanisms help prevent damage to the motor and ensure its consistent and reliable operation.

Overall, a 3-phase motor ensures consistent and reliable performance in machinery through its design characteristics, balanced power distribution, higher efficiency, robust construction, and built-in protective features. These elements work together to deliver smooth operation, minimal interruptions, and long-term reliability, making 3-phase motors a preferred choice for a wide range of industrial applications.

China manufacturer Tower Crane Three Phase Motor CHINAMFG   with Hot selling	China manufacturer Tower Crane Three Phase Motor CHINAMFG   with Hot selling
editor by CX 2024-05-14