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A closed-loop stepper kit built around a Nema34 86mm frame motor, an HBS86H hybrid servo driver and a 3-meter encoder cable. The encoder lets the driver track the shaft's real position and correct for lost steps under load or fast acceleration, which is the main step up from open-loop steppers. The HBS86H adds cooling fans so it holds up in longer runs. It suits CNC builds, routers and automation projects that need reliable positioning at Nema34 torque levels rather than the cheapest open-loop setup.
In stockSold by Muzi Trading CompanyReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
This kit pairs a Nema34 closed-loop stepper motor with an HBS86H hybrid servo driver, a 400 W 60 V DC power supply and an encoder cable. The motor body is 86 mm long and the kit is rated at 12 N·m. The parts are matched to work together.
The motor has a built-in encoder. The driver compares the shaft's actual position with the commanded position in real time and corrects any step loss. This helps prevent accumulated position errors under overload or rapid acceleration.
The HBS86H uses an ARM chip and a vector closed-loop control algorithm. It is built to run the motor more smoothly and quietly, with less heat, and it can supply extra current for sudden load changes. The driver has cooling fans. The encoder cable connects the motor's encoder port to the driver's feedback port.
