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wholesale price for 3p induction motor

Product Description

Product Description

RQQ Series Integrated Soft Start Driver

I. Product Application 

RQQ series are soft start driver, which is used for electric single girder,double hoists girder, gantry cranes and other lifting equipment. It’s a new type integrated driver for both big and small Trolley.

II. Product Features

1. This soft start driver according to current driver’s dimensions, to optimize the design, integrated the soft start motor, reducer and the brake. Thereby improved the installation quality, reduced the assembly time, optimized installation program.Integration driver is with small size, light weight, easy installation and easy-maintenance, compact and beautiful structure.
2. This series soft start driver is equipped with YSE series dual-rotor soft start 3 phase asynchronous brake motor. F-class insulation, IP54 protection class. Motor housing is aluminum alloy, reduced weight and helped motor heat dissipation. So it prevents the motor winding aging easily, extends the lifespan of the motor. Motor adopts cold-rolled silicon steel sheet,( 55295255,which) enhances the output power, the motor heat condition,starting torque performance.It is much better than hot-rolled silicon steel sheet.

III. Operating conditions

1, Power supply: 50 ± 1% Hz, 380 ± 10%; -15 ℃ ≤ ambient temperature≤45 ℃. relative air humidity ≤85%, The working environment should be no explosion dust and non-corrosive.
2.Protection class IP54, insulation class F.
3.Work quota is S3-25%, 120 times per hour.
4. No rain and exposure , outdoor use should be packed with protective cover.
5.Motor should connect ground line, please refer to the power distribution regulations.
6. Before the motor installed on the device, please make sure the whole system has good and stable operating characters in the unloaded test.
7. After the driver installed on the device, please fill gear oil according to the note that posted on the driver.
8. Automatic braking when power off.

Product Parameter

RQQDⅢ Soft Start Driver

National patent NO.:ZL201220008549.1
RQQDⅢ soft start driver is for the installation dimension of small shape lengthened output gear. It applies to large-tonnage and large-span electric single girder, double girder hoists, gantry cranes and so on. The installation dimensions can’t be interchangeable with LDA Driver.

Motor installation dimension table      


Driver speed table for your reference

The design of the soft start driver is according to M=7,Z=48 tooth,contact wheel diameter φ370

Runding speed
Output Ratio
Output rotate speed (r/min)

Motor wiring diagram      

Detailed Images
Factory Show
Packing & Delivery
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Our Company

Wuhan Vohoboo Import & Export Trade Co.,Ltd is a modern high technology enterprise integrated R&D, manufacture and sales since the year of 2011.
Product: Vohoboo specialized in the development and production of Material handing equipment, such as Chain Hoist, Wire Rope Hoist, motor...

Contact US

Contact person: Jenny Wong
Tel: +86 27 86790925
Email/ Skype: jenny_ vohoboo at
Mob/ Whatsapp/ Wechat: +86 18986051460
QQ: 1905669553

Contact us if you need more details on 3p Induction Motor. We are ready to answer your questions on packaging, logistics, certification or any other aspects about 3p Induction Motor、3p Induction Motor. If these products fail to match your need, please contact us and we would like to provide relevant information.

Product Categories : RQQ Crane Motor with Gear Box

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