Linear Rotary Actuator Selection Manual – JODELL

Table of Contents

• Full Series Product Drawings
• Selection Process & Notes
• Cable Installation Requirements
• Common Cable Failure Causes
• LRA Series Linear Rotary Actuators
• LA Series Voice Coil Linear Actuators
• JRD Series Self-developed Drives
• Benchmark Customers

1. Selection Process

1. Confirm the suitable voice coil actuator series
2. Select the required size and stroke
3. Choose the appropriate encoder type
4. Determine load, thrust force and force control accuracy based on working conditions
5. Verify the operating environment (air pressure, voltage) meets requirements
6. Check if the safety margin is sufficient
7. Confirm controller type, brand and customization
8. Determine control cable type and length → Selection completed

2. Cable Installation Requirements

1. Static Cable Fixing

Cables can be straight or 90° bent. Avoid excessive pulling, bending and large swinging during fixing.

2. Dynamic Cable Reserve & Swing Control

Reserve sufficient length for vertical relative motion, control lateral swing amplitude to avoid excessive movement.

3. Cable Chain Installation Specifications

• Fix both ends of the cable entering/exiting the chain, keep fixing points away from the bending area
• U-shaped bending plane parallel to the cable chain bracket
• Moderate length, not too tight or too loose

4. Cable Isolation Judgment

D1+D2 > 1.2H → No isolation required; D1+D2 ≤ 1.2H → Partition required

5. Wiring Specifications

• Cables shall not overlap, reserve 10% free space of cable diameter
• Air pipes and cables must be isolated
• No twisting, balanced weight distribution

3. Common Cable Failure Causes

No.	Failure Mode	Common Causes
1	Core Wire Breakage	Improper length, severe pulling; excessive load; fixing points in bending active area
2	Twisting / Insulation Damage	Wrong selection, too small bending radius, permanent material deformation
3	Sheath Wear	Unreasonable installation, no 10% free space
4	Shielding Failure / EMC Issues	Wrong shielding angle, shielding layer damage caused by mechanical load

4. Application Scenarios

• Flexible pick-and-place of fragile components (chip packaging, camera modules)
• 3C electronic product testing (touch panels, keyboards, switches)
New energy battery thickness measurement
• Micro electronic parts assembly

5. LRA Series Linear Rotary Actuators

Ultra-thinHigh Precision Force ControlLinear + Rotary Suitable for 3C, medical, precision manufacturing, semiconductor

Naming Rule

LRA – Stroke – Thickness – Motor Type – Resolution – Voltage – IP Rating

Core Model Parameters

Model	Stroke	Thickness	Continuous Thrust	Force Control Accuracy
LRA15-20	15mm	20mm	12N	±5g
LRA25-20	25mm	20mm	12N	±5g
LRA30-23	30mm	23mm	10N	±5g
LRA40-23	40mm	23mm	10N	±5g
LRA60-25	60mm	25mm	10N	±5g

General Key Parameters

• Rotation Angle: ±360°
• Linear Encoder Resolution: 0.2μm
• Rotary Positioning Accuracy: ±0.01°
• Power Supply: DC24V±10%
• Environment: 5-40℃, below 85%RH

6. LA Series Voice Coil Linear Actuators

High Frequency ResponseHigh AccelerationZero Backlash Direct drive, micron-level positioning

Model	Stroke	Continuous Thrust	Peak Thrust
LA-HP10-35V	10mm	13.6N	29.3N
LA-HF10-35V	10mm	31.4N	120N
LA15-50V	15mm	27.5N	70N
LA25-20	25mm	12N	–

7. JRD Series Self-developed Drives

Deeply compatible with LRA/LA/EPG/ELS, support force control, soft landing, EtherCAT, auto-homing

Model	Compatible Series
JRD-LEO	LA Series
JRD-LEO	LRA Series
JRD-FAL	EPG/ELS Series

8. Benchmark Customers

Coverage: Intelligent manufacturing, biomedicine, semiconductor, new energy, robotics and other 100+ customers