ALM-T Series – Ironless Linear Motor
The ALM-T Series comprises compact, lightweight ironless linear motors designed for smooth, cogging-free motion and high dynamic response. With continuous forces from 10 N to 846 N and peak forces up to 4,233.6 N, the range is suitable for precision positioning, high-speed motion and demanding force-control applications.
The ALM-T Series Ironless Linear Motor is designed for applications requiring a compact motor profile, low moving mass and high force density. Its ironless construction eliminates cogging force, enabling exceptionally smooth motion with minimal velocity ripple.
The motor’s lightweight coil and direct drive design provide high acceleration and rapid dynamic response without requiring mechanical transmission components such as ball screws, belts or gearboxes. This reduces backlash, mechanical wear and maintenance while supporting precise and repeatable linear motion.
The ALM-T range provides continuous force ratings from 10 N to 846 N and peak force ratings from 36 N to 4,233.6 N. Multiple motor sizes and coil lengths are available, allowing the required force, size and performance to be matched to the application.
Optional digital Hall modules are available for motor commutation. The motor’s slim construction makes it particularly suitable for integration into compact modules and multi-axis positioning systems where installation space is limited.
Typical Applications
- Semiconductor manufacturing equipment
- Flat-panel display production
- Ultra-precision positioning stages
- Biomedical equipment
- Laboratory automation
- Optical systems
- High-speed positioning machinery
- Precision force-control applications
Need help selecting the right linear motor?
Micromech’s experienced engineers can help you select and size the most suitable ALM-T motor, coil and magnetic track combination for your required force, speed and positioning performance.
Features
- Ironless linear motor design
- Compact, low-profile construction
- Lightweight motor coil
- High force density
- Zero cogging force
- Smooth motion with minimal velocity ripple
- High dynamic response
- Rapid acceleration and deceleration
- Continuous force ratings from 10 N to 846 N
- Peak force ratings from 36 N to 4,233.6 N
- Multiple motor sizes and coil lengths available
- No magnetic attraction force between the coil and track
- Optional digital Hall modules
- Reduced mechanical wear and maintenance
- Suitable for precision positioning
- Suitable for high-speed motion
- Suitable for demanding force-control applications
- Designed for integration into compact and multi-axis motion systems
Specification
The ALM-T Series includes six motor widths with multiple coil-length options to meet different force and installation requirements.
| Series | Available coil variants | Coil length range | Continuous force range | Peak force range |
|---|---|---|---|---|
| ALM015-T | B1–B2 | 34–67 mm | 10–20 N | 36–72 N |
| ALM016-T | B1–B2 | 49–97 mm | 19.5–39 N | 42.5–85 N |
| ALM021-T | B1–B4 | 78–258 mm | 29–116 N | 100.8–403.2 N |
| ALM028-T | B1–B5 | 106–442 mm | 74.4–371.8 N | 256.9–1,284.4 N |
| ALM038-T | B1–B6* | 134–704 mm | 124.4–746.6 N | 622.7–3,736.3 N |
| ALM048-T | B1–B6* | 134–704 mm | 141–846 N | 705.6–4,233.6 N |
*Available variants are B1, B2, B3, B4 and B6.
| General specification | Details |
|---|---|
| Motor type | Ironless linear motor |
| Cooling method | Natural cooling |
| Cogging force | Zero |
| Magnetic attraction force | Zero |
| Hall sensors | Optional digital Hall module |
| Insulation class | Class B (130°C) |
| Protection rating | IP00 |
| Operating temperature | 0°C to 40°C, non-freezing |
| Storage temperature | −15°C to 70°C, non-freezing |
| Operating humidity | 10% RH to 80% RH, non-condensing |
| Storage humidity | 10% RH to 90% RH, non-condensing |
Force, current and electrical characteristics vary by motor size and coil length. Refer to the ALM-T datasheet for detailed model-specific specifications and force-speed curves.
Certifications
- CE compliant
- RoHS compliant
Downloads
Direct Drive Motors Catalogue
Detailed ALM-T Series model specifications, dimensions, force-speed curves, motor performance data and ordering information.
