Electric actuator DWM 20

linearlead screwstepper

Product Overview
Size 20 mm linear actuator DWM 20. Compact profile available in single‑stack and double‑stack configurations. Multiple motor and lead‑screw options allow precise selection of speed and travel per step for micro‑positioning applications.

Motor Characteristics
Motor | Voltage [V] | Current [A] [RMS] | Resistance [Ω] | Inductance [mH] | Lead Wire No. | Motor Length [mm]
8E2105 | 2.5 | 0.5 | 5.1 | 1.5 | 4 | 27.2
8E2205 | 4.4 | 0.5 | 8.8 | 2.7 | 4 | 38.1

Available Lead Screw and Travel per Step
Screw Dia. [inch] | Screw Dia. [mm] | Lead [inch] | Lead [mm] | Lead Code | Travel Per Step @ 1.8° [mm]
0.138 | 3.5 | 0.0118 | 0.3 | AF | 0.0015
0.138 | 3.5 | 0.024 | 0.6096 | AA | 0.003048
0.128 | 3.24 | 0.0394 | 1 | AB | 0.005
0.138 | 3.5 | 0.048 | 1.2192 | B | 0.006096
0.138 | 3.5 | 0.0787 | 2 | G | 0.01
0.138 | 3.5 | 0.096 | 2.4384 | J | 0.012192
0.138 | 3.5 | 0.1575 | 4 | M | 0.02
0.138 | 3.5 | 0.315 | 8 | T | 0.04

Mechanical Specifications
Model | Dynamic load C (kN) | Static load Co (kN) | Mro (Nm) | Mpo (Nm) | Myo (Nm)
DWM 20 | 0.51 | 0.87 | 1.18 | 2.4 | 2.4

Dimensional Drawing
External actuator images and detailed dimensional drawings are available for the Size 20 mm DWM 20 showing overall dimensions, mounting interfaces and connector positions.

Available Stroke Selection
Size A (mm) | Stroke B (mm) | Weight (kg) Single stack | Weight (kg) Double stack
70 | 20 | 0.145 | 0.168
90 | 40 | 0.159 | 0.182
110 | 60 | 0.173 | 0.196
130 | 80 | 0.186 | 0.209
150 | 100 | 0.2 | 0.223
170 | 150 | 0.235 | 0.258
190 | 200 | 0.27 | 0.293

* Weight values are for reference only and may vary with actual configuration.

Speed Thrust Curves
Speed‑thrust characteristic graphs are available for both single‑stack and double‑stack configurations to support motor and lead‑screw selection.

Technical specifications

• Commercial model: DWM 20
• Manufacturer / Brand: DINGS
• Actuator size: 20 mm
• Motor options: 8E2105 (2.5 V, 0.5 A RMS, 5.1 Ω, 1.5 mH, 4 lead wires, 27.2 mm length); 8E2205 (4.4 V, 0.5 A RMS, 8.8 Ω, 2.7 mH, 4 lead wires, 38.1 mm length)
• Lead screw options and travel per 1.8° step: AF / AA / AB / B / G / J / M / T (see table for lead and travel values)
• Mechanical ratings (DWM 20): Dynamic load C = 0.51 kN, Static load Co = 0.87 kN, Mro = 1.18 Nm, Mpo = 2.4 Nm, Myo = 2.4 Nm
• Available strokes (B): 20, 40, 60, 80, 100, 150, 200 mm with corresponding A sizes and single/double stack weights (see table)
• Dimensional drawings and external images available on product page
• Speed‑thrust curves available for single and double stack configurations