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Home Products Stepper Lead Screw Linear Actuator-20mm

Size 8 [20mm] Stepper Lead Screw Linear Actuators

Size 8 [20mm] Stepper Lead Screw Linear Actuator unit can be integrated into various applications to provide precise linear positioning while occupying less than 1 in² of mounting footprint and providing up to 45N of continuous thrust.

Size 8 Stepper Lead Screw Linear Actuator has four form factors available - External, Non-captive, Electrical Cylinder(Captive) and Kaptive.

Size 8 [20mm] Stepper Lead Screw Linear Actuators images

Motor Characteristics

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MotorVoltage[V]Current[A [RMS]]Resistance[Ω]Inductance[mH]Weight[g]Lead Wire No.Motor Length[mm]
8-21052.50.55.11.551427.2
8-22054.40.58.82.774438.1
NOTE

Motor Insulation Class B, Motor Temperature Rise 80°C, Ambient Temperature -20℃~55℃

Available Lead Screw and Travel per Step

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Screw Dia.[inch]Screw Dia.[mm]Lead[inch]Lead[mm]Lead CodeTravel Per Step @ 1.8° [mm]*
0.1383.50.01180.3048AF0.0015
0.1383.50.0240.6096AA0.003048
0.1383.240.03941AB0.005
0.1383.50.0481.2192B0.0061
0.1383.50.07872G0.01
0.1383.50.15754M0.02
0.1383.50.3158T0.04
  • * Motor wiring and screw lead could be made according to customer’s request
  • * Value truncated
 

Dimensional Drawings

external actuator images
external actuator demension
non-captive actuator images
non-captive actuator demension
captive actuator images
non-captive actuator demension
Stroke Specification
Size A
(mm)		 Stroke B
(mm)		 Size L (mm)
22.2 12.7 Single stack
motor
27.2mm		 Double stack
motor
38.1mm
28.55 19.05
34.9 25.4
41.3 31.8
47.6 38.1
60.3 50.8
73 63.5
kaptive actuator images
kaptive actuator demension
Stroke Specification
Size A
(mm)		 Stroke B
(mm)		 Size C (mm)
L=27.2 L=38.1
10.9 9 0 0
14.6 12.7 3.5 0
20.8 19.05 9.5 0
27.3 25.4 15.5 4.5
33.7 31.8 22.5 11.5
40 38.1 28.5 17.5

Speed Thrust Curves

speed thrust curves image
speed thrust curves image

Options

Screw End Machining
opt screw end machining
Teflon Coating

If customer's applications require greaseless screw and nut combination, DINGS' offers teflon coated lead screw of stepper linear actuator.

Teflon coated lead screw stepper linear actuator enables it's longer life cycle and better thrust force generation against conventional SUS lead screw.

Teflon coating can be applied in the whole range of lead screw options in DINGS' and all types of linear actuators such as External, Non-Captive, Electric Cylinder and Kaptive.

In addition, anti-backlash nut also can be combined with teflon coated lead screw too.

teflon coat
External Anti-Backlash Nut
External Anti-Backlash Nut

* According to different screw lead code selection, length of Anti-Backlash nut can be changed.

Non-Captive Anti-Backlash Nut
Non-Captive Anti-Backlash Nut
Encoder Option
EK1 Encoder images
EK1 Encoder images

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Resolution(CPR) 100 108 120 125 128 200 250 256 300 360 400 500 1000 512 720 800
Single ended output 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Differential output A B C D E F G H I J K L M N O P
Power-Off Brake [Available For Size 8 Motor]

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Rated voltage DC 24V ± 5%
Resistance 55Ω ± 10%
Power 9.6W
Hold torque >0.06N.M
Insulation B
Insulation resistance >100MΩ (DC500V)
Dielectric strength AC 1000V for 1 sec
Retraction time 50ms
Release time 50ms
Gyration gap 1°
Emergency brake time 200
Lifetime 2,000,000 times
Noise level <60db
Size 8 [20mm]