Lead Screw DC Motor

Kechen Motor – Lead Screw DC Motor Manufacturer in China

Micro lead screw  DC motors combine a small DC motor with a precision lead screw to generate linear motion without additional transmission parts. This design helps reduce assembly complexity and keeps the system easy to control.

These motors are widely used in applications where basic linear motion, stable output, and cost control are required. With simple forward and reverse control, they can be easily integrated into standard DC systems.

Our products are built with consistent lead screw accuracy and stable motor performance, ensuring smooth movement and reliable operation under repeated use. Different screw pitches are available to balance speed and thrust based on application needs.

We offer multiple size options and structural types, including captive and non-captive designs. Stroke length, voltage, and mounting dimensions can be adjusted to match specific project requirements.

Choosing our lead screw DC motors helps simplify your design while maintaining stable performance in daily operation.

Construction & Materials

• Motor core – High‑grade laminated steel stack with copper windings, rated for continuous duty.
• Lead screw – Stainless steel (303, 316) or carbon steel with anti‑corrosion coating. Trapezoidal or ball screw threads according to load/speed requirements.
• Nut – Self‑lubricating POM, PEEK, or bronze. Reduces backlash and extends service life.
• Housing – Aluminum alloy (6061 or 6063) with anodized finish. Optional stainless steel cover for harsh environments.

Performance Advantages

1. Direct linear output – No need for separate linear guides, couplings, or belt drives. The lead screw is factory‑aligned to the motor shaft, eliminating alignment errors and reducing assembly time.
2. High positional repeatability – Typical accuracy within ±0.05 mm (open‑loop). With an external encoder, closed‑loop control achieves ±0.01 mm.
3. Wide force‑speed range – By varying the screw lead (1–100 mm) and motor winding, we match your required linear speed and axial force (up to 50 N). Higher forces are available with planetary gearbox add‑ons.
4. Durable in continuous operation – Our brushed DC motors are built for reliable long‑term use. The brush assembly is serviceable, allowing routine maintenance to extend motor life. This design offers a lower initial cost and works well for intermittent duty cycles as well as moderate continuous operation.

Why Choose Our Lead Screw DC Motors

• In‑house engineering support – Our application engineers review your load profile, duty cycle, and mounting constraints. We recommend the optimal screw lead, motor size, and feedback option before you order.
• Flexible customisation – Stroke length, lead screw material, nut material, connector type, and shaft end machining (flat, keyway, or tapped hole) are all configurable.
• Quality testing – Each batch undergoes dynamometer sampling to verify no‑load current, speed‑torque curve, and insulation resistance. Standard functional checks (direction, current, noise) are performed on every unit before packing. Test reports are available upon request.
• Short lead times – Standard models ship within 10–15 working days. Custom units require 15–20 days, including design approval and sampling.

Typical Applications

Micro lead screw DC motors are used in a wide range of device-level and light industrial applications where linear motion is required:

• Medical devices (infusion pumps, patient lifts, dental chairs)
• Industrial automation (pick‑and‑place units, valve actuators, clamping systems)
• Laboratory equipment (sample handling, stage positioning)
• Agricultural machinery (ventilation damper controls, seed metering)
• Commercial appliances (vending machine product pushers, office chair height adjustment)

Ordering & Technical Support

To specify the correct lead screw DC motor for your project, please provide:

• Required linear force (N) and speed (mm/s)
• Stroke length (mm) and total travel cycles per day
• Supply voltage and available current
• Environmental conditions (temperature, moisture, dust)
• Desired feedback (encoder)

Send your requirement sheet to our engineering team. We will reply with a datasheet, 3D step file, and quotation within 24 hours.