Features With Slider Design: The 4 wire stepper motor linear rail is designed with a slider, which has high precision, high sensitivity, high stability and durability. Application Range: Stroke stepper motor with slider is widely used in small equipment, such as medical equipment, laser engraving machine, etc. Maximum Linear Speed 25mm Per Second: The 80mm stroke stepper motor has a maximum linear speed of 25mm per second, featuring reliability and high precision. Need to Work With The Driver: The motor needs an A4988 driver (not included) to drive and cannot be directly connected to the power supply. Practical: Each step of the stroke stepper motor moves 0.25mm, and if you need a smaller one, you can use a microstep driver, which is a very practical mechanical accessory. Specifications: Model: D8-MOTOR80 Drive voltage: 12V DC (drive: 16219) Current per phase: 800 ma/phase Coil resistance : 15  10%Ω/phase No.of phases: 2 phases Step angle: 18 ./step Excitation method: 1-2 phase excitation Drive mode: Bipolar drive Pull-out thrust: 500g  above at 125pps Max response frequency: 1600 pps above Max starting frequency : 1100 pps above nsulation class: Class E  Insulation strength: 100vac one second Insulation resistance: 50M DC 500V Operating temperature: 0~+55℃ Motor surface temperatur: 80℃ Thread Rod Diameter: 3mm Thread Rod Length: 90mm Slide Block Stroke: 80mm Thread Rod Pitc: ±0.5mm Length: 10.3cm/4.1in Weight: 50g (approx.) Package Includes: 1 x Motor with Linear Slide Package List