Features and application
ZFQZ Series Frequently Starting Braking DC Motors are developed on the basis of Z4 Series and ZZJ-800 Series DC motors. The rotating inertia of the motors is 45% and 65% of the motors of Series ZZJ-800 and ZZJ-900 respectively. The motors are suitable for direct and reversal rotation and start and stop in high frequency in a bad working circumstance. The motors are good-overloading. The max. Rotating moment and the starting moment are 112% and 117% of the moments of Series ZZJ-800 and Series ZZJ-900 motors respectively. The weight of the motors is just 65% of the Series ZZJ-800 motors. The class of the motor power is in accordance with the international standard IEC34-13 Technical Criterions of Auxiliary Machine and Hoisting and Metallurgy. Outline mounting dimensions of the motors comply with IEC 72 Standard, except for the axial distance between the mounting holes (dimension B). The mounting dimension of the motors with bottom plates is able to be in compliance with the dimension of Series ZZJ-800 and Series ZZJ-900 motors. Also, the shaft extension dimension of the motors can be customized into the corresponding dimension of Series ZZJ-800 and Series ZZJ-900 motors after discussion with customers. Therefore, Series ZFQZ DC motors can substitute for Series ZZJ-800 and Series ZZJ-900 motors.
Requirements for Use
1. The allowable ambient temperature for the operation of the motors is -30C~+40C and the allowable sea level is not higher than 1000m.
2. The supplying electric source of the motors adopts rectified electric source or DC generator electric source. When adopting 3-phase, fully controllable bridge rectified electric source, the motors can work for a long period without outer smoothing reactor.
Products Specification
1. There are 2 kinds of rated voltage of motors: 220V, 440V. As required, the motors with other voltage level can be produced.
2. The mode of excitation of motors is separate excitation. The voltage of excitation is 180V or 310V. As required, the motors with other voltage level can be produced.
3. ZFQZ Series Frequently Starting Braking DC Motors running at basic speed can reach max. Rotating moment regulated in the Technical Data Table. It will last 60s.
4. For the motors of rated voltage 220V, the rotating speed can reach as 2 times as the rated rotating speed through increasing the applied voltage. At this time, the allowable max. Rotating moment is as 1.8 times as the rated rotating moment. It will last 15s.
5. For the motors of rated voltage 220V, the max. Rotating moment is as 0.6 times as the rated rotating moment when the motors are running with low-intensity magnetic rotation regulated in the Technical Data Table. It will last 15s.
6. The electric current changing rate of the motors can reach as 200-250 times as the rated electric current changing rate. It can be discussed if >250 is required.
7. The standard position of wire outlet box of the motors is on the right of the machine baseplate seen from the drive end. If required, it can be mounted on the left of the machine baseplate. If so, this requirement should be stated in the order.
Protection Class: IP21S.IP23 and IP44 can be negotiated
Electric Motor Mounting Type:
IMB3 Z4-100~Z4-450 Horizontal foot mounted
IM35 Z4-100~Z4-350 Horizontal flanged foot mounted
IMV-1 Z4-100~Z4-225 Vertical flanged mounted
IMV-51 Z4-100~Z4-315 Vertical flanged and foot mounted
Duty: ContinuousS1
Methods of Cooling: IC06, IC17, IC37 and ICW37A86, Other types of protection and cooling required by customers can be negotiated.
Our Strength:
Furthermore, in order to distinguish us from competitors, to grow even further and gain more market share, we decided to invest most of its profits in specializing and acquired the quality certificate of ISO9001 , passed CE.At the same time we has dozens of Utility Model Patents. We also made a cooperation with Shanghai Electrical Apparatus Research Institute (Group) Co.,Ltd, as special motor production base for SEARI in 2005 . Now participates in many international tenders and exports to many countries around the world through everyone's efforts in Hengli.
Production of system:
We strictly check on every step of the production chain to ensure links is good in quality, to satisfy customers' demand and ensure delivery at the same time. advanced equipment and complete internal supply chain, from punching, laminating, welding, machining, winding, embedded line, dipping, assembled to test, all the procedures are done in-house to ensure quality.
Warranty Period:
The motor could work well within one year's using period or no less than thirteen months from departure date of our company(subject to the first) if the user use and store the motor properly according to the instruction .
If the motor is damaged or can not work normally within the stipulated time due to the poor quality , our company will repair and replace the spare parts or motors free of charge ,while all entry and exit costs borne by the buyer.
Service after the Warranty Period :
Our company implements the lifelong paid service if malfunction occurs after the warranty period, we will supply the required easy-weared parts and spare parts at cost price. After sales- service personnel will call back the user irregularly.
Audited Supplier 
){kind=link}
){kind=link}