Electric actuator LRA series

linearrotaryservo-motor

Introduction
The ZR linear‑rotary actuator (LRA series) is a highly integrated 2‑D motion module combining Z‑axis linear lift and ±360° R‑axis rotation. It couples a direct‑drive linear motor for precise linear motion with a servo‑driven rotary axis to enable synchronized compound moves such as lift, rotate and angle calibration for high‑precision pick‑and‑place and precision assembly applications.

Features

• Ultra‑thin Z+R integration: compact form factor simplifies system design and maintenance.
• Accurate force control: direct‑drive linear motor with motion control algorithms; laboratory results report ±3G deviation on repeat force control under matched conditions.
• Linear + rotary coordination: supports high‑speed pick‑and‑place with real‑time force and position monitoring and adjustment.
• Micron‑level positioning: linear optical encoder (0.1–0.2 μm typical) and 17‑bit rotary encoder (resolution 131072) for repeatable placement and misalignment avoidance.
• Intelligent soft‑landing: precise force control enables gentle contact—suitable for semiconductor chip packaging and delicate assembly.

Specification - LRA15-50
Z‑axis — Adjustable stroke: 15 mm
Sustained thrust: 27.5 N
Peak thrust: 70 N
Force constant: 17.7 N/A
Sustained current: 1.55 A
Peak current (Z): 4 A
Linear encoder resolution: 0.2 μm
Repeat positioning precision: ±2 μm
Body parameters — Thickness: 50 mm; Deadweight: 1 kg
Force control repeatability example: 20–125 g (repeatability ±5 g); 125–700 g (±4%)
Voltage: DC 48 V ±10%
Usage environment: 5–40 °C, <85% RH
R‑axis — Rotation angle: ±360°; Rotary encoder resolution: 131072; Rotary positioning precision: ±0.01°; Rated torque: 0.028 N·m; Peak torque: 0.142 N·m; Rated current (R): 1.11 A; Peak current (R): 5.33 A
Compliance: CE

Specification - LRA25-20
Z‑axis — Adjustable stroke: 25 mm
Sustained thrust: 12 N
Peak thrust: 39.6 N
Force constant: 7.5 N/A
Sustained current: 1.6 A
Peak current (Z): 5.3 A
Linear encoder resolution: 0.2 μm
Repeat positioning precision: ±2 μm
Body parameters — Thickness: 20 mm; Deadweight: 0.74 kg
Force control repeatability example: 20–50 g (±5 g) and 50–300 g (±10 g)
Voltage: DC 24 V ±10%
R‑axis — Rotation angle: ±360°; Rotary encoder resolution: 131072; Rotary positioning precision: ±0.01°; Rated torque: 0.01 N·m; Peak torque: 0.043 N·m
Usage environment: 5–40 °C, <85% RH
Compliance: CE

Specification - LRA30-23
Z‑axis — Adjustable stroke: 30 mm
Sustained thrust: 10 N
Peak thrust: 35 N
Force constant: 10 N/A
Sustained current: 1 A
Peak current (Z): 3.5 A
Linear encoder resolution: 0.2 μm
Repeat positioning precision: ±2 μm
Body parameters — Thickness: 23 mm; Deadweight: 1.27 kg
Force control repeatability example: 20–50 g (±5 g) and 50–300 g (±10 g)
Voltage: DC 24 V ±10%
R‑axis — Rotation angle: ±360°; Rotary encoder resolution: 131072; Rotary positioning precision: ±0.01°; Rated torque: 0.01 N·m; Peak torque: 0.043 N·m
Usage environment: 5–40 °C, <85% RH
Compliance: CE

Specification - LRA30-25
Z‑axis — Adjustable stroke: 30 mm
Sustained thrust: 10 N
Peak thrust: 35 N
Force constant: 10 N/A
Sustained current: 1 A
Peak current (Z): 3.5 A
Linear encoder resolution: 0.2 μm
Repeat positioning precision: ±2 μm
Body parameters — Thickness: 25 mm; Deadweight: 1.1 kg
Force control repeatability example: 20–50 g (±5 g) and 50–300 g (±10 g)
Voltage: DC 24 V ±10%
R‑axis — Rotation angle: ±360°; Rotary encoder resolution: 131072; Rotary positioning precision: ±0.01°; Rated torque: 0.01 N·m; Peak torque: 0.043 N·m
Usage environment: 5–40 °C, <85% RH
Compliance: CE

Specification - LRA40-23
Z‑axis — Adjustable stroke: 40 mm
Sustained thrust: 10 N
Peak thrust: 35 N
Force constant: 10 N/A
Sustained current: 1 A
Peak current (Z): 3.1 A
Linear encoder resolution: 0.2 μm
Repeat positioning precision: ±2 μm
Body parameters — Thickness: 23 mm; Deadweight: 1.25 kg
Force control repeatability example: 20–50 g (±5 g) and 50–300 g (±10 g)
Voltage: DC 24 V ±10%
R‑axis — Rotation angle: ±360°; Rotary encoder resolution: 131072; Rotary positioning precision: ±0.01°; Rated torque: 0.01 N·m; Peak torque: 0.043 N·m
Usage environment: 5–40 °C, <85% RH
Compliance: CE

Specification - LRA60-25
Z‑axis — Adjustable stroke: 60 mm
Sustained thrust: 10 N
Peak thrust: 35 N
Force constant: 10 N/A
Sustained current: 1 A
Peak current (Z): 3.5 A
Linear encoder resolution: 0.2 μm
Repeat positioning precision: ±2 μm
Body parameters — Thickness: 25 mm; Deadweight: 1.5 kg
Force control repeatability example: 20–50 g (±5 g) and 50–300 g (±10 g)
Voltage: DC 24 V ±10%
R‑axis — Rotation angle: ±360°; Rotary encoder resolution: 131072; Rotary positioning precision: ±0.01°; Rated torque: 0.01 N·m; Peak torque: 0.043 N·m
Usage environment: 5–40 °C, <85% RH
Compliance: CE

Specification - LRA‑E50‑25
Z‑axis — Adjustable stroke: 50 mm
Sustained thrust: 12 N
Peak thrust: 39.6 N
Force constant: 7.5 N/A
Sustained current: 1.6 A
Peak current (Z): 5.3 A
Linear encoder resolution: 0.2 μm
Repeat positioning precision: ±2 μm
Body parameters — Thickness: 25 mm; Deadweight: 1 kg
Force control repeatability example: 20–50 g (±5 g) and 50–300 g (±10 g)
Voltage: DC 24 V ±10%
R‑axis — Rotation angle: ±360°; Rotary encoder resolution: 131072; Rotary positioning precision: ±0.01°; Rated torque: 0.02 N·m; Peak torque: 0.187 N·m; Peak current (R) noted in tables: up to 10.7 A for some variants
Usage environment: 5–40 °C, <85% RH
Compliance: CE

Selected variants overview

• Multiple force‑control and form‑factor variants are available (examples: LRA‑F, LRA‑HP, LRA‑S families). Typical Z strokes: 15–60 mm; linear encoder resolution: 0.1–0.2 μm; repeat positioning: ±2 μm; R‑axis: ±360°, rotary resolution 131072, rotary precision ±0.01°.
• Voltage options: typically DC 24 V ±10% or DC 48 V ±10% depending on the model.
• Force control repeatability and precision figures originate from HONPINE laboratory tests and depend on drive matching and configuration.

Notes
All stated force‑control repeatability and precision figures are laboratory results and depend on system configuration, matching drive and operating conditions. For selection, provide required stroke, force range and interface specifications to ensure correct model and drive pairing.