Electric actuator 11E2 series

electromechanicallinearball screw

Overview
The Size 11 [28 mm] External Stepper Ball Screw Linear Actuator converts stepper motor rotation into precise linear motion. Multiple screw-end machining, encoder and power-off brake options are available to match application requirements.

Motor Characteristics
Model No. | Rated Voltage [V] | Current [A] (RMS) | Resistance [Ω] | Inductance [mH] | Lead Wires | Motor Length "L" [mm]
11E2110 | 2.1 | 1.0 | 2.1 | 1.5 | 4 | 33.35
11E2209 | 3.9 | 0.95 | 4.1 | 4.0 | 4 | 45

Ball Screw Specification (overview)
Ball screw type | 0601 | 0602 | 0606
Ball size | Φ0.8 | Φ0.8 | Φ0.8
Number of thread | 1 | 1 | 2
Thread direction | Right (all types)
Shaft root dia. | Φ5.3 | Φ5.1 | Φ5.2
Number of circuit | 3.7×1 | 2.7×1 | 1.6×2
Shaft, nut material | SCM415H (all types)
Surface hardness | HRC58~62 (all types)
Anti-rust treatment | Anti-rust oil (all types)
Grade | C7 (all types)

Nut size / Performance
Nut size | A | B | C | D | H | W | X | E | Axial play (mm) | Dynamic load [N] | Static load [N]
BS0601 | 24 | 3.5 | 15 | 12 | 16 | 18 | 3.4 | | ≤0.02 | 680 | 1200
BS0602 | 24 | 3.5 | 16 | 12 | 16 | 18 | 3.4 | | ≤0.02 | 880 | 1500
BS0606 | 27 | 4 | 17.2 | 14 | 16 | 21 | 3.4 | 8 | ≤0.02 | 870 | 1450

Dimensional Drawings
External actuator and dimension drawings for Size 11 are provided as visual references to support integration and mounting design.

Speed-Thrust Curves
Speed-thrust curves are available for single-stack and double-stack configurations. Test condition: 24 Vdc, driver DS-OLS2-FPD bipolar chopper at rated current (RMS). Motor thrust varies with voltage and driver; a 50% thrust margin is recommended for design safety.

Options

• Screw end machining: multiple end-machining options to suit coupling and mounting.
• Encoder option: EK1 encoder with multiple CPR choices (examples: 100, 108, 120, 125, 128, 200, 250, 256, 300, 360, 400, 500, 512, 720, 800, 1000). Single-ended and differential outputs supported.
• Power-off brake: available for Size 11 motor (see parameters below).

Power-Off Brake — Parameters
Rated voltage: DC 24V ±5%
Resistance: 143.7 Ω ±10%
Power: 5.5 W
Hold torque: >0.3 N·m
Insulation class: B
Insulation resistance: >100 MΩ (DC 500V)
Dielectric strength: AC 1000V for 1 s
Retraction time: 50 ms
Release time: 50 ms
Gyration gap: 1°
Emergency brake cycles: 200 cycles
Lifetime: 500,000 cycles
Noise level: <60 dB

Available Images
Product page includes external images, dimensional drawings, single-stack and double-stack speed-thrust curves, screw-end machining examples, encoder images and power-off brake images.

Technical Specifications

• Series / Model: Size 11 (28 mm)
• Product type: External Stepper Ball Screw Linear Actuator
• Main motor models: 11E2110, 11E2209
• Ball screw types: 0601, 0602, 0606; ball Φ0.8; shaft root dia. Φ5.1–Φ5.3; material SCM415H; surface hardness HRC58–62; grade C7
• Nut options: BS0601, BS0602, BS0606 — axial play ≤0.02 mm; dynamic loads ~680–880 N; static loads ~1200–1500 N depending on nut
• Encoder: EK1 option with multiple CPR and output variants
• Power-off brake: DC 24V ±5%, 5.5W, hold torque >0.3 N·m, lifetime 500,000 cycles
• Recommended test condition for thrust curves: 24 Vdc with DS-OLS2-FPD bipolar chopper driver; allow ~50% thrust margin for different drivers/voltages
• Brand: DINGS