QS 3000W 138 72V 100KPH Mid drive motor 12inch assembly kits with EM150SP Controller 

Please noted that tire is not included as default.

For 138 3000W mid drive motor kit assembly, it could be used for electric scooter, electric motorbike, which could be 72V 100KPH, avaiable for 12inch wheel kits as default (14inch wheel assemble kits will comes out soon).

e.g. Z6 electric motorbike

E-motorbike weight, approx 115kg+2*80kg

Speed: continuous 100km/h

Gear ratio: 1:4.77 (double steps transmission )

Climbing slope: 30°@190kg

Battery: 72V40h NCM lithium battery

Tire: 130/70-12

One set including below kits

Combo 1

·1pc QS 12inch 3000W Mid Drive Motor assembly with Left/Right fork( Tire are not included）

·1pcs X Votol EM72150SP sine wave motor controller with standard CAN-BUS

·1pcs X DKD LCD speedometer

·1pcs X Z6 throttle with combination switch

.1pcs X Disc brake system

You can click below pic for Aliexpress purchasing link.

Combo 2

·1pc QS 12inch 3000W Mid Drive Motor assembly with Left/Right fork( Tire are not included）

·1pcs X Votol EM72150SP sine wave motor controller with standard CAN-BUS

·1pcs X Z6 throttle with combination switch

.1pcs X Disc brake system

Combo 3

·1pc QS 12inch 3000W Mid Drive Motor assembly with Left/Right fork( Tire are not included）

·1pcs X Votol EM72150SP sine wave motor controller with standard CAN-BUS

Combo 4

·1pc QS 12inch 3000W Mid Drive Motor assembly with Left/Right fork( Tire are not included）

Key Features

1). Simplify to make a electric-motorcycle. Gearbox, transmission shaft, clutch are no need. Which save space.

2). It could be installed in the rear to save more space for battery.

3). Support regenerative braking

4). High efficiency: 85~92% 

Product description

Genearlly Spec:

1. Item: QS Motor 3000W 138 70H Mid Drive Motor
2. Motor Type: BLDC Permanent Magnet Inner Rotor Motor With Hall Sensor
3. Brand: QS Motor, QSMOTOR
4. Motor Design: Single axle 
5. Matched Wheel: 12inch Wheel (as default)
6. Magnet Height: 70mm, 40pcs, 5 pole pairs
7. Diameter of stator: 138mm
8. Rated Power: 3000W
9. Rated Voltage: 72V as default
10. Speed: 100KPH 
11. No-load rpm: 3800rpm without flux weakening, 6600RPM with flux weakening.
12. Max Torque: approx 56.0N.m without Reduction ratio, approx 247.0N.m with 1:4.77 Reduction ratio  
13. Reduction ratio: 1:4.77 (as default)
14. Max Efficiency: 88%
15. Continuous Battery Current: 35A (72V)
16. Peak Battery Current: 120A (72V)
17. Suggest Peak Phase Current: 450A
18. Thermic Probe: KTY83/122 as default
19. Working Temperature: Pending
20. Single Hall Plate with waterproof connectors
21. 16mm² Cross Section of Phase Wire (not include insulation layer)
22. Hall Sensor Phasing angle: 120 degree
23. Waterproof Grade: IP54
24. Color: Black 
25. N.W./G.W.: 7.8kgs/9.1kgs   
26. Package Dimension: 34cm*34cm*33cm

Dimension Drawing:

• QS 3kW 138 mid drive motor

Test report

EM72150SP Controller Description:

Specification

·Sine wave controller, programmable, with regen function  

·Rated Current:180A      

·BOOST Current: 220A

·Peak Current: 470A

·Max.Power: 12960W

·Flux Weakening Ratio:100~250%

·Max.Efficiency:88~93%                                             

·Net weight: 1650g                                                                          

·Waterproof IP67   

3. DKD LCD speedometer, can-bus(optional, LIN as default)

It display D N R, P, S gear, and battery current X5/10.

P.s.: If the working battery doesn't have can-bus communication, then the can-bus speedometer will shows lack of electricity always.

So, we suggest to do the speedometer as Line communication version if client can't get can-bus battery.

4. Z6 throttle with combination switch

With Reverse, Parking button( throttle on/off), 3 slide switch gear, s/boost button, Light and Horn.

It match with VOTOL controller well.

5. Disc brake system 

Application for QS 138 3kW mid drive motor