Advice please : Quick voltage and amps question + speed control

[magicniner]

Just use one PWM controller rated at the sum plus 15% or so to run all three.

[Fivetide]

Just use one PWM controller rated at the sum plus 15% or so to run all three.

what abot the AC to DC feeding : 10-50V 40A PWM DC Motor Speed Controller CW/CCW Reversible Pulse Driver TE535

Specifications:
Working voltage: DC 10~50V
Sustained current: 40A
Maximum current: 60A
Speed range: 0%~100%
CW/CCW: Support
Output voltage: Load linear
Speed principle: Current regulation
Dimension: Approx. 110 x 78 x 38mm

??

[magicniner]

It should work fine, I'm a big fan of component systems though, that way if one bit fails you replace it but at that price it's probably worth a punt on the integrated unit.