I see a lot of servos that use a “plastic-metal-plastic” sandwich design. While that’s fine for a hobby drone, it is a disaster for a 150kg industrial joint. Why? Because of the CNC servo case thermal path.
When you run a motor like the XQ-S9150D at its peak 10A current, the internal coils get hot fast. In a plastic case, that heat stays trapped inside like an oven. Eventually, your magnets lose strength and the torque fades.
But with a full CNC servo case, the entire housing acts as one massive heat sink. We precision-machine our shells from aerospace-grade aluminum to ensure the tightest possible fit between the motor and the wall. This lets the heat “jump” directly to the outer surface and dissipate into the air.
And another thing: rigidity. Under 180kg-cm of torque, a plastic case will actually flex. That micro-flexing ruins your gear alignment and causes premature wear. A CNC servo case stays rock solid, protecting your steel gears and keeping your precision exactly where you set it.
So, if you’re choosing between a $80 “sandwich” motor and a full metal one, look at the thermal data. In the long run, the metal case pays for itself by preventing motor burnout.
Powering Innovation
Contact XQ-power’s product specialist to recommend suitable motor or servo for your product.