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Linear Motor Definition

2025-11-25 08:57:12 toyo管理员

I. Company and Product Overview

TOYO (Dongyouda) is a well-known automation equipment manufacturer from Taiwan, China, focusing on the field of linear motion control. Its linear motor products are renowned for high precision, high-speed response, and long stroke, and are widely used in semiconductors, 3C electronics, precision manufacturing, and other fields.
Core product lines:
  • LTF Series: Iron-core flat linear motors with high thrust and high load capacity, maximum stroke of 4700mm, suitable for heavy-load applications.

  • LGW Series: Ironless U-shaped linear motors with no cogging effect, suitable for precision positioning scenarios.

  • Shaft-type Linear Motors: Compact design with a maximum speed of 2500mm/s, suitable for space-constrained environments.

II. Working Principle and Technical Features

1. Working Principle

Based on the law of electromagnetic induction and Lorentz force, TOYO linear motors “unfold” a rotating motor into a linear form, directly converting electrical energy into linear motion without intermediate transmission mechanisms such as gears or belts.
  • Primary Coil (Stator): Fixed in place, generating an alternating magnetic field when energized.

  • Secondary Coil/Magnetic Rail (Rotor): Installed on moving components, interacting with the magnetic field of the primary coil to generate linear thrust.

2. Core Technical Advantages

AdvantageTechnical DescriptionApplication Value
Ultra-high PrecisionDirect drive design eliminates backlash; standard 1μm resolution optical scale enables system positioning accuracy of ±2μm.Semiconductor wafer handling, precision testing equipment
High-speed ResponseNo transmission delay; maximum acceleration up to 5g and maximum speed up to 3500mm/s.High-speed placement of electronic components, high-speed sorting systems
High Load CapacityHigh-density coil design; thrust of dual-axis synchronous drive can be doubled compared to single-axis, with a maximum load of 120kg.Large-scale automated production lines, PCB board transportation
Extra-long StrokeSingle motor has a maximum stroke of 8000mm; longer strokes can be customized on demand.Large-scale warehousing and logistics, semiconductor equipment
Stability and DurabilitySpecial heat dissipation mechanism ensures excellent rotor heat dissipation, minimal structural wear, and long-term precision retention.24/7 continuous production environments, reduced maintenance costs

III. Detailed Product Series

1. LTF Series (Iron-core Flat Type)

Performance Parameters:

  • Precision: Repeat positioning accuracy of ±0.002mm

  • Speed: Maximum 3500mm/s

  • Load Capacity: 15kg–120kg (varies by model)

  • Stroke: Standard 202mm–4688mm; extendable via customization

Sub-series:

  • LTF2-15: Maximum thrust of 266N, suitable for light-load precision applications.

  • LTF2-45: Maximum thrust of 1128N, suitable for medium-load applications.

  • LTF2-75: Maximum thrust of 1523N, preferred for heavy-load applications.

Features:

High thrust density and cost-effectiveness, suitable for high-speed transportation of large-volume objects and precision assembly.

2. LGW Series (Ironless U-shaped Type)

Features:

  • No cogging effect, smoother motion, suitable for ultra-high-precision applications.

  • Low heat generation, suitable for long-term continuous operation.

  • Compact structure, space-saving.

  • Particularly suitable for scenarios requiring high stability, such as optical inspection and precision assembly.

3. Shaft-type Linear Motors

Features:

  • Cylindrical structure, easy to install, suitable for space-constrained applications.

  • Horizontal load: 15–51kg; maximum speed: 2500mm/s.

  • Maximum stroke: 1940mm; precision: ±1–2μm.

  • Widely used in medical equipment and small automated production lines.

IV. Application Fields

1. Semiconductor and Electronic Manufacturing

  • Wafer Handling: LTF Series enables high-speed and stable handling, with precision ensuring no wafer damage.

  • PCB Board Processing: Used in spraying, dispensing, and testing equipment, with positioning accuracy of ±0.002mm.

  • IC Packaging: Meets micro-level precision requirements for precision placement and wire bonding.

2. Display Panel Industry

  • TFT-LCD/OLED Production Lines: Used for glass substrate transmission, cutting, and testing.

  • Flat Panel Display Module Assembly: Enables precision lamination of backlight modules and touch screens, balancing speed and precision.

3. Medical and Precision Testing

  • Medical Equipment: Applied in CT scanning tables and precision surgical instrument positioning, with quiet and vibration-free operation.

  • Optical Testing: Used for nano-level precision adjustment of microscope platforms and spectrometers.

  • Laboratory Automation: Enables precise sample pipetting and analytical instrument positioning.

4. Other Industrial Applications

  • Warehousing and Logistics: Drives AGV trolleys and builds high-speed sorting systems, increasing operation cycle efficiency by 40%.

  • Printing and Packaging: Enables precise paper transmission and print head positioning, improving printing quality.

  • New Energy: Used for lithium battery pole piece cutting and cell assembly, meeting high cleanliness requirements.

V. Comparison Between TOYO Linear Motors and Traditional Transmission

FeatureTOYO Linear MotorsTraditional Rotating Motors + Transmission Mechanisms
Transmission MethodDirect drive, no intermediate linksMotor → Gear/Belt/Lead Screw → Linear Motion
Positioning Precision±0.002mm–±0.02mmAffected by transmission backlash, generally ≥±0.05mm
Response TimeMillisecond-level, instant start/stopHundreds of milliseconds, with transmission delay
Maximum SpeedUp to 3500mm/sLimited by transmission mechanisms, generally <1000mm/s
Maintenance RequirementLow (no wearable components)High (regular replacement of belts, gears, etc.)
Noise LevelLow (no mechanical contact)High (friction from transmission components)
Application ScenariosHigh precision, high speed, long strokeGeneral precision, low speed, short stroke
Advantage Summary: By eliminating the transmission chain, TOYO linear motors achieve "zero backlash, high response, and long service life," making them particularly suitable for modern automated production lines with strict requirements for precision and speed.

VI. Market Status and Price Range

  • Market Positioning: Mid-to-high-end linear motor market; higher cost-effectiveness than Japanese brands (e.g., Yaskawa, Panasonic) with comparable precision and stability, and 20–30% lower prices.

  • Price Range:

    • Small shaft-type: Approximately RMB 4,000–8,000

    • Medium LTF Series: Approximately RMB 8,000–20,000

    • Large heavy-load series: Approximately RMB 20,000–50,000 (customization-dependent)

  • Chinese Agents: Shenzhen Huiji Times, Shanghai Yufei Electromechanical, Dongguan Longfang Automation, etc., providing technical support and after-sales services.

VII. Selection Recommendations

By Load

  • <20kg: Choose shaft-type or G Series lightweight models.

  • 20–50kg: LTF2-20/30 Series.

  • 50–100kg: LTF2-45 Series.

  • 100kg: LTF2-75 Series or dual-axis parallel solution.

By Precision Requirement

  • Ordinary Precision (±0.02mm): Standard series.

  • High Precision (±0.005mm): LGW ironless series.

  • Ultra-high Precision (±0.002mm): LTF2 Series + high-precision optical scale.

By Environment

  • Clean Room: Choose dust-free series.

  • High-temperature Environment: Special heat dissipation version.

  • Space-constrained: Shaft-type or compact LGW series.

Conclusion

With advantages in direct drive technology, high precision, and long stroke, TOYO linear motors have become core components of modern automated equipment. Whether for precision positioning in semiconductor manufacturing or efficient handling in high-speed electronic production lines, TOYO linear motors provide stable and reliable solutions. Compared with traditional transmission methods, they not only simplify mechanical design but also significantly improve equipment performance and reliability, making them an ideal choice for precision manufacturing in the Industry 4.0 era.