Products

Disc Magnet High Speed Step Motor

P430 - Disc Magnet High Speed Step Motor

P430

Portescap disc magnet motors provide exceptional dynamic performance unparalleled by any other small diameter stepper in the market. The unique thin disc magnet enables finer step resolutions in a given envelope, significantly higher acceleration and greater top speed than conventional steppers.

These high speed stepper motors excel in applications that require the precision of a stepper and the speed and acceleration of a brushless DC motor. Closing the loop provides a competitive advantage against a servo solution.

Motor Highlights

  • Precise - well-suited for microstepping
  • Fast - disc magnet enables fastest acceleration and highest top speed of any step motor while maintaining accurate positioning
  • Unique - low detent torque and highly customizable
  • Adaptable - higher steps per revolution than similar diameter steppers

Customization Available

  • Sintered or ball bearings
  • Various windings
  • Shaft modifications - increase/decrease length, knurling
  • Longer leads, connectors
  • Gearheads for increased torque
  • Encoders for position verification
  • Lead screw shafts

Applications

Specification + Detail
Resources
Metric English 
Winding{%|%}unit P430 258 005 01 P430 258 005 01 (parallel) P430 258 013 01 P430 258 013 01 (parallel)
Diameter{%|%}in 1.54 1.54 1.54 1.54
Diameter{%|%}mm 39 39 39 39
Length{%|%}mm
Length{%|%}in
Operating Voltage (VDC)
Resistance per Phase, ± 10%{%|%}Ohms 2.5 2.5 6.5 6.5
Inductance per Phase, typ{%|%}mH 3.5 3.5 10.0 10.0
Nominal Phase Current, 2 ph. On{%|%}A 1.12 1.12 0.68 0.68
Nominal Phase Current, 1 ph. On{%|%}A 1.60 1.60 1.00 1.00
Back-EMF Constant{%|%}V/1000 rpm
Back EMF Amplitude{%|%}V/ksteps/s 2.3 2.3 3.8 3.8
Holding Torque, MIN (mNm)
Holding Torque, MIN (oz-in)
Holding Torque, Typical{%|%}mNm 60.0 60.0 60.0 60.0
Holding Torque, Typical{%|%}oz-in 8.50 8.50 8.50 8.50
Holding Torque, 1.5x nominal current{%|%}mNm 90.0 90.0 90.0 90.0
Holding Torque, 1.5x nominal current{%|%}oz-in 12.70 12.70 12.70 12.70
Detent Torque, Typical{%|%}mNm 3.50 3.50 3.50 3.50
Detent Torque, Typical{%|%}oz-in 0.50 0.50 0.50 0.50
Rated Current per Phase, 1 Phase ON (A)
Detent Torque, Max (mNm)
Detent Torque, Max (oz-in)
Rotor Inertia{%|%}kgm²10{%SUP%}-7{%/SUP%} 3.00 3.00 3.00 3.00
Rotor Inertia{%|%}oz-in-sec²10{%SUP%}-3{%/SUP%} 164.02 164.02 164.02 164.02
Nominal Voltage (Volt)
Optimization (rpm)
No-Load Speed (rpm)
No-Load Current (mA)
Max continuous mechanical power (@ 25°C)
Max continuous Current (A)
Max Continuous Torque (mNm)
Max Continuous Torque (oz-in)
Terminal Resistance (W)
Output Power (W)
Stall Torque (oz-in)
Stall Torque (mNm)
Efficiency (%)
Speeds up to (rpm)
Torque up to (oz-in)
Torque up to (mNm)
Current up to (thermal limits)
Torque Constant (mNm/A)
Torque Constant (oz-in/A)
Motor Regulation R/k² (10³/Nms)
Motor regulation k/R½ (mNm/W)
Motor regulation k/R½ (oz-in/W)
Internal resistance - phase to phase (W)
Line to Line resistance at connectors (Ω)
Inductance - phase to phase (mH)
Friction Torque (onz-in)
Friction Torque (mNm)
Rotor Inductance (mH)
Mechanical Time Constant (ms)
Thermal Time Constant (C/W)
Absolute accuracy 2 ph. On, Full step mode{%|%}% +/- 5% +/- 5% +/- 5% +/- 5%
Steps per Revolution 100 100 100 100
Ambient Temperature Range (°C)
Operating Temperature Range (°F)
Rotor Operating Temperature Range (°C)
Rotor Operating Temperature Range (°F)
Ambient temperature range (operating){%|%}°C -20 to 50 -20 to 50 -20 to 50 -20 to 50
Ambient temperature range (operating){%|%}°F -4 to 122 -4 to 122 -4 to 122 -4 to 122
Insulation Resistance at 500 VDC (Mohms)
Leadwire
Max motor speed (rpm)
Ambient storage temperature range (°C)
Ambient storage temperature range (°F)
Ball bearings preload (N)
Axial static force without shaft support (N)
Max winding temperature (C)
Max Winding Temperature (C)
Max Winding Temperature (F)
Max winding temperature (F)
Hall Sensor Elecrical Phasing (degree)
Typical Housing Material
Continuous Stall Current (A)
Peak Torque for 1s (mNm)
Peak Torque for 1s (oz-in)
Peak Current (A)
Shaft Load Max Axial (lb)
Shaft Load Max Axial (N)
Shaft Load Max Radial (lb)
Shaft Load Max Radial (N)
Max. Force* @ .001" (0.0254 mm) / Step (N)
Max. Force* @ .001" (0.0254 mm) / Step (oz)
Max. Force* @ .002" (0.0508 mm) / Step (N)
Max. Force* @ .002" (0.0508 mm) / Step (oz)
Max. Force* @ .004"(0.1016 mm) / Step (N)
Max. Force* @ .004"(0.1016 mm) / Step (oz)
Stroke Length, Typ{%|%}mm
Stroke Length, Typ{%|%}in
Min. Holding Force (Unenergized) @ .0005" (0.0127 mm) / Step{%|%}N
Min. Holding Force (Unenergized) @ .0005" (0.0127 mm) / Step{%|%}oz
Min. Holding Force @ 0.001" (0.0254 mm) / Step (Un-energised) (N)
Min. Holding Force @ 0.001" (0.0254 mm) / Step (Un-energised) (oz)
Min. Holding Force @ 0.002" (0.0508 mm) / Step (Un-energised) (N)
Min. Holding Force @ 0.002" (0.0508 mm) / Step (Un-energised) (oz)
Min. Holding Force (Unenergized) @ 0.003" (0.0762 mm) / Step (Un-energized){%|%}N
Min. Holding Force (Unenergized) @ 0.003" (0.0762 mm) / Step (Un-energized){%|%}oz
Min. Holding Force @ 0.004" (0.1016 mm) / Step (Un-energised) (N)
Min. Holding Force @ 0.004" (0.1016 mm) / Step (Un-energised) (oz)
Min. Holding Force @ rated current @ .0005" (0.0127 mm) / Step{%|%}N
Min. Holding Force @ rated current @ .0005" (0.0127 mm) / Step{%|%}oz
Min. Holding Force @ rated current @ .001" (0.0254 mm) / Step{%|%}N
Min. Holding Force @ rated current @ .001" (0.0254 mm) / Step{%|%}oz
Min. Holding Force @ rated current @ .002" (0.058 mm) / Step{%|%}N
Min. Holding Force @ rated current @ .002" (0.058 mm) / Step{%|%}oz
Min. Holding Force @ rated current @ .003" (0.0762 mm) / Step{%|%}N
Min. Holding Force @ rated current @ .003" (0.0762 mm) / Step{%|%}oz
Min. Holding Force @ rated current @ .004" (0.1016 mm) / Step{%|%}N
Min. Holding Force @ rated current @ .004" (0.1016 mm) / Step{%|%}oz
Number of lines available
Output signal
Supply Current - maxium (mA)
Supply Current - stand-by (μA)
Supply Current - typical (mA)
Supply Voltage (V)
Direction of rotation ( = / ≠)
Max. Recommended Input Speed (rpm)
Number of gear stages
Number of lines available
Maximum Coil Temperature{%|%}°C 130 130 130 130
Maximum Coil Temperature{%|%}°F 266 266 266 266
Thermal Resistance{%|%}°C/W 11 11 11 11
Natural Resonance Frequency @nominal current{%|%}Hz 360 360 360 360
Electrical time constant{%|%}ms 1.5 1.5 1.5 1.5
Angular Acceleration (nominal current){%|%}rad/s2 200,000 200,000 200,000 200,000
Bearing Type Ball Ball Ball Ball
Dielectric Withstanding Voltage{%|%}VAC 500 VRMS for 5 seconds 500 VRMS for 5 seconds 500 VRMS for 5 seconds 500 VRMS for 5 seconds
Radial Shaft Play{%|%}µm 15@5N 15@5N 15@5N 15@5N
Axial Shaft Play{%|%}µm 10@5N 10@5N 10@5N 10@5N
Max Radial Shaft Load{%|%}oz 72 72 72 72
Max Radial Shaft Load{%|%}N 20 20 20 20
Max Axial Shaft Load{%|%}oz 108 108 108 108
Max Axial Shaft Load{%|%}N 30 30 30 30
Weight{%|%}g 100.0 100.0 100.0 100.0
Weight{%|%}oz 3.5 3.5 3.5 3.5
Type of encoder
Power rate, nominal current{%|%}kW/s 12.0 12.0 12.0 12.0
Linear Travel Accuracy 3.6 3.6 3.6 3.6
Input Power (W)
Stepper Type
Document Technology Document Type Language File Type
P430 drawing Disc Magnet Stepper DXF Drawing  
P430 Specification Sheet Disc Magnet Stepper Specification Page  
P430 3D Drawing Disc Magnet Stepper 3D  
Disc Magnet Motors (brochure) Disc Magnet Stepper Literature  
Disc Magnet Stepper Speed vs. Torque Curves specifications Disc Magnet Stepper Specification Page  
Miniature Motors for Automated Solutions (brochure) Literature