CHIHAI Miniature Linear Stepper Actuator, SM1545 / SM1530 / SM1519 / SM2016
CHIHAI Miniature Linear Stepper Actuator, SM1545 / SM1530 / SM1519 / SM2016
CHIHAI MOTOR
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Overview
The CHIHAI MOTOR miniature linear stepper actuator family converts controlled stepper rotation into guided linear travel. Select the actuator model and an actual package. SM 1545 is available alone or with a standard driver or PLC-control driver; SM 1530, SM 1519 andSM 2016 are actuator-only choices.
Features
- Compact lead-screw and guide assembly for miniature motion mechanisms.
- Two-phase four-wire stepper operation with reversible motion under a suitable driver.
- SM 1545 uses an M 3×0.5 right-hand stainless-steel lead screw and supported carriage.
- Model-specific travel and driver options keep the actual assembly clear.
Specifications
| Identity | CHIHAI MOTOR miniature linear stepper actuator family |
| Actual models / travel | SM 1545: 65 mm; SM 1530: 30 mm; SM 1519: 19 mm; SM 2016: travel not specified here |
| Drive principle | Two-phase four-wire bipolar stepper; requires a suitable driver, not direct DC across arbitrary terminals |
| 1545 screw | M 3×0.5 right-hand lead screw, SUS 303 stainless steel |
| 1545 size | 15×14.5×88 mm reference; 88.3 mm drawing overall; 77.0±0.1 mm body reference |
| 1545 mass | Approximately 40 g; other models differ |
| 1545 drive reference | 9 V DC with L 6219 driver reference; 3–12 V adjustable drive-family information does not define every board rating |
| 1545 phase current | 600 mA per phase |
| 1545 phase resistance | 15 Ω±7% per phase at 20°C |
| 1545 excitation | Two phases; 1–2 phase excitation; bipolar drive |
| 1545 step angle | 18° per step |
| 1545 pull-out torque | More than 230 gf·cm at 125 pps; rotary motor reference, not linear payload capacity |
| 1545 pulse references | Maximum response more than 1300 pps; maximum self-start more than 900 pps |
| 1545 insulation | Class E coils; 100 VAC for 1 second; 50 MΩ at 500 VDC test reference |
| 1545 temperatures | Operating 0 to 55°C; motor surface 80°C or less |
| 1545 connector | 51021-0400 housing, 1.25 mm pitch, single row; 120±10 mm lead reference |
| 1545 mounting | Original drawing includes 15/18.5 mm end references, 19±0.1 mm carriage feature, 22.5±0.1 mm vertical reference and 88.3 mm overall |
| Driver choices | Standard driver or PLC-control driver offered with SM 1545 only; other model options are actuator-only |
SM 1545 Wiring and Drive
The following pin order applies to the SM 1545 connector drawing. Red and white form phase A; brown and black form phase B. Match actual wire colors and connector orientation before connection.
| Pin | Color | Phase |
|---|---|---|
| 1 | Brown | B |
| 2 | Black | B return |
| 3 | White | A return |
| 4 | Red | A |
Use a current-controlled bipolar stepper driver and a compatible power supply. Do not wire the four motor leads as a two-wire brushed DC motor. The 9 V/L 6219 and 600 mA-per-phase values are the SM 1545 electrical reference, not guaranteed input ratings for both optional control boards. Confirm board markings and input requirements before connection. The standard-driver package and PLC-control-driver package are different board choices; no PLC, power supply, external pulse controller or limit switch is promised as an extra item.
Mechanical Selection and Operation
SM 1545, SM 1530 andSM 1519 have 65, 30 and 19 mm travel respectively. SM 2016 is a distinct illustrated assembly; do not substitute the SM 1545 dimensions or assume its travel. Use the preserved 1545 drawing only for that model. Check mounting, screw clearance and carriage fit before machining or assembly.
Provide end-of-travel control in the application and avoid driving the carriage into its mechanical stops. Keep the guide aligned and protect it from debris. Load capability depends on orientation, speed, drive current and duty cycle; the rotary torque reference is not a guaranteed linear payload. Avoid unsupported side loads, stall and overheating.
Applications
Miniature sliding platforms, small positioning mechanisms, experimental 3D-printer axes and compact instrument motion projects. Select the actual travel, load and controller behavior for the mechanism.
What's Included
One selected linear actuator. Only the two SM 1545 driver packages additionally include their pictured driver board. Power supply, PLC, complete positioning platform, printer and external limit sensors are not included.
FAQ
Can I add either driver to every model?
No. Only SM 1545 is offered with the two driver packages in this listing.
Can I directly connect the motor to a DC supply?
No. A two-phase bipolar stepper driver must control the phase sequence and current.
Do the detailed electrical values apply to every option?
No. The detailed table and drawing apply to SM 1545; other assemblies have their own dimensions and drive requirements.
Are limit switches included?
No limit switches are listed. Provide suitable end-of-travel control for the application.
Visual Details
