加拿大采购需求：步进电机、电机轮、步进驱动器、机器人轮、机器人电机、AMR 直流电机

We're a robotics startup in Montreal, and we're looking into your wheel hub motors for our indoor project. We're particularly interested in understanding the performance specifications of these motors. Could you provide details on the rated continuous load capacity per wheel, continuous torque at nominal voltage, and the maximum current draw under full load? Additionally, it would be helpful to know if there's built-in thermal protection or an overheating cut-off feature, as well as your recommendations on a suitable motor controller, ideally a dual-channel model. Furthermore, we'd like to get the pricing for 4 sample units, including shipping costs to Montreal, QC. Your prompt response would be appreciated as we are eager to move forward with our project.