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Nema 23 Stepper Motor - High Torque - 1.8degree/step, 345oz-in

Nema 23 Stepper Motor - High Torque - 1.8degree/step, 345oz-in

Best price now

$40.59at Rat RigChecked Nov 10

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Price facts

  • Last seen at $40.59 at Rat Rig on Nov 10.
  • Our take on the Nema 23 Stepper Motor - High Torque - 1.8degree/step, 345oz-in

    The LDO 57STH86 is a Nema 23 bipolar stepper with 345 oz-in of holding torque, a 1.8-degree step angle and a 3.0 A per phase current rating. It uses a 6.35 mm (1/4 inch) shaft and comes with 8 cm pre-tinned leads, so it can be soldered or fitted with connectors. It suits CNC routers, 3D printers, laser cutters and automation builds that need more torque than a Nema 17 can give. Against generic Nema 23 motors, LDO is a known name in motion hardware, and the high torque rating puts it above common 270 to 300 oz-in units of the same frame size.

    Best forCNC router and mill buildsLarge 3D printers and laser cuttersAutomation and linear motion projectsMakers upgrading from Nema 17
    Pros
    • High 345 oz-in holding torque for its frame size
    • Standard Nema 23 mounting pattern
    • 1/4 inch shaft fits common pulleys and couplers
    • Pre-tinned leads ready to solder or connectorize
    • LDO is an established motion hardware brand
    Cons
    • Needs a driver rated for 3.0 A per phase
    • 3.0 V rating means it wants a current-controlled driver, not direct voltage
    • Short 8 cm leads may need extension for some builds
    • No connector included, just bare tinned wires

    Nema 23 Stepper Motor - High Torque - 1.8degree/step, 345oz-in prices at every store

    • Rat RigNew

      In stockShips from Portugal · duties may applyReturn policy

      $40.59Checked Nov 10
      Visit Rat Rig

    About the Nema 23 Stepper Motor - High Torque - 1.8degree/step, 345oz-in

    This is a high-torque Nema 23 stepper motor made by LDO, model LDO-57STH86. It has a 1.8 degree stepping angle and a holding torque of 24.5 kg/cm (345 oz-in).

    The motor is rated for 3.0 V and 3.0 A per phase. It has a 6.35 mm (1/4") shaft. Its four wires are pre-tinned and 8 cm long, so you can use an extension connector or solder or join them directly.

    Manufacturer
    LDO
    Model
    LDO-57STH86
    Frame size
    Nema 23
    Holding torque
    24.5 kg/cm (345 oz-in)
    Stepping angle
    1.8 degrees
    Voltage
    3.0 V
    Current
    3.0 A per phase
    Shaft
    6.35 mm / 1/4"
    Connector
    4 pre-tinned wires, 8 cm long

    Questions and answers

    What driver does this motor need?
    Use a current-controlled stepper driver rated for at least 3.0 A per phase, such as a DM542-class or TB6600-class driver. Set the driver current to 3.0 A and use a supply well above the 3.0 V rating.
    Is it a good upgrade from a Nema 17?
    Yes, if your machine can carry the larger frame and needs more torque. It delivers far more holding torque than typical Nema 17 motors, but it is bigger and heavier, so check mounting space and belt or screw loads.
    How do I wire the four leads?
    The motor has two coils with four pre-tinned wires. Pair the leads per coil to your driver's A and B outputs; if the motor runs rough or weak, swap one pair. Solder directly or use connectors.
    What shaft size does it have?
    The shaft is 6.35 mm, or 1/4 inch, which matches common 1/4 inch pulleys, couplers and gears. Check that your existing hardware uses that bore before ordering.
    Is it 1.8 degrees per step?
    Yes, it moves 1.8 degrees per full step, or 200 steps per revolution. Microstepping on the driver gives finer resolution.
    What is in the box?
    The motor with its 8 cm pre-tinned lead wires. No driver, connector or cable extension is included.
    Where is the Nema 23 Stepper Motor - High Torque - 1.8degree/step, 345oz-in cheapest?
    At Rat Rig, for $40.59, as of our latest check.

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