TM Series – Iron Core Linear Motors
Compact iron core linear motors with continuous force from 60 N to 360 N, peak force from 105 N to 630 N and speeds up to 36.6 m/s at 600 V. High force density direct drive with efficient heat dissipation, supplied as standard with a 3 m FLEX power cable.
Product Overview
| Motion Type | Linear |
|---|---|
| Technology | Iron Core |
| Product Range | Linear Motors |
| Series | TM |
Key Performance Specs
- Continuous Force: 360 mm
- Maximum Speed: 36.6 m/s
Key Features
- Continuous force range 60 N to 360 N
- Peak force range 105 N to 630 N
- Ultimate force range 120 N to 720 N
- Speeds up to 36.6 m/s at 600 V
- Motor width 50 mm, height 40 mm
- Magnet pitch 24 mm
- S, Z and N winding variants available
- PTC 1 kΩ and KTY 83-122 thermal protection
- Supplied as standard with 3 m FLEX power cable
- Direct drive technology with no mechanical transmission
TM Series – Iron Core Linear Motors
TM Series of Iron Core Linear Motors
The TM Series iron core linear motor by Tecnotion is a high precision linear motor designed to excel in demanding industrial conditions. Its robust construction suits a wide variety of industries. Using direct drive technology, the TM Series enhances productivity, accuracy and dynamic performance, eliminating the need for mechanical transmissions such as rack and pinion, belts and speed reducers. The absence of contact between the coil unit and magnets ensures zero mechanical wear. This approach enables slimmer, modular designs while reducing cost, setting a high standard for precision, durability and versatility across industrial applications.
Iron Core Linear Motor
The TM Series of iron core linear motors from Tecnotion offers a powerful and precise solution across a broad range of applications. These motors deliver high power while maintaining excellent precision and accuracy, and their ability to generate significant continuous force makes them well suited to demanding tasks where substantial thrust is required. Iron core linear motors also dissipate heat efficiently, maintaining performance and reliability under high loading conditions and helping to extend motor life. The result is a reliable, efficient solution for applications that demand both high power and precision.
Applications for Linear Motors
Precision linear motors are central to applications demanding high levels of accuracy and repeatability. They are widely used in laser cutting, scanning, digital printing, and electronics assembly and inspection. They also feature in processes such as Automatic Optical Inspection (AOI) and laser micro-machining, where ultra precision and accurate scan motion are required. In medical and scientific equipment, precision linear motors are relied on for accuracy and repeatability across every cycle.
Product Specifications: TM Series – Iron Core Linear Motors
| TM Series Iron Core | Symbol | Unit | TM3 S | TM3 Z | TM6 S | TM6 Z | TM12 S | TM18 N | TM18 S |
| Motor type, max voltage ph-ph | 3-phase synchronous iron core, 400 V ac rms (565 V dc) | ||||||||
| Ultimate force (magnet @ 25°C) | Fu | N | 120 | 240 | 480 | 720 | |||
| Peak force (magnet @ 25°C) | Fp | N | 105 | 210 | 420 | 630 | |||
| Continuous force (coils @ 100°C) | Fc | N | 60 | 120 | 240 | 360 | |||
| Maximum speed (@ 600 V) | vmax | m/s | 12 | 36.6 | 12 | 36.5 | 12 | 4.5 | 10.0 |
| Motor force constant (mount. sfc. @ 20°C) | K | N/Arms | 39 | 12.9 | 39 | 12.9 | 39 | 79 | 39 |
| Motor constant (coils @ 25°C) | S | N²/W | 95 | 190 | 380 | 570 | |||
| Ultimate current (magnet @ 25°C) | Iu | Arms | 4.1 | 12.6 | 8.2 | 25.1 | 16.4 | 12.3 | 25.1 |
| Peak current (magnet @ 25°C) | Ip | Arms | 3.1 | 9.5 | 6.2 | 18.9 | 12.4 | 9.2 | 18.9 |
| Maximum continuous current (coils @ 100°C) | Ic | Arms | 1.5 | 4.7 | 3 | 9.3 | 6 | 4.5 | 9.3 |
| Back EMF phase-phase peak | Bemf | V/m/s | 32 | 11 | 32 | 11 | 32 | 65 | 32 |
| Resistance per phase (coils @ 25°C ex. cable) | Rph | Ω | 5.4 | 0.56 | 2.7 | 0.28 | 1.35 | 3.6 | 0.85 |
| Induction per phase (I < 0.6 Ip) | Lph | mH | 35 | 3.65 | 17 | 1.83 | 9 | 23 | 5.5 |
| Electrical time constant (coils @ 25°C) | τe | ms | 6.5 | ||||||
| Maximum continuous power loss (all coils) | Pc | W | 49 | 99 | 197 | 296 | |||
| Thermal resistance (coils to mount. sfc.) | Rth | °C/W | 1.5 | 1.5 | 0.75 | 0.38 | 0.25 | ||
| Thermal time constant (up to 63% max. coil temp.) | τth | s | 75 | ||||||
| Temperature cut-off / sensor | PTC 1 kΩ / KTY 83-122 | ||||||||
| Coil unit weight (ex. cables) | W | kg | 0.6 | 0.9 | 1.6 | 2.3 | |||
| Coil unit length (ex. cables) | L | mm | 93 | 143 | 143 | 241 | 336 | ||
| Motor attraction force (rms @ 0 A) | Fa | N | 300 | 500 | 900 | 1300 | |||
| Magnet pitch NN | τ | mm | 24 | ||||||
| Cable mass | m | kg/m | 0.18 | ||||||
| Cable type (power FLEX), length 3 m | d | mm (AWG) | 8.3 (≥18) | ||||||
| Cable type (sensor), length 3 m | d | mm (AWG) | 4.3 (26) | ||||||
| Cable life (power FLEX), minimum | 5,000,000 cycles | ||||||||
| Bending radius static, minimum | 4x cable diameter | ||||||||
| Bending radius dynamic (power FLEX), minimum | 10x cable diameter | ||||||||
All specifications ±10%. Values assume a mounting surface at 20°C with the motor driven at maximum continuous current. Actual values depend on bus voltage. Cable life depends on bending radius, velocity and acceleration. The TM series comes standard with a 3 m long FLEX power cable.
Product Dimensions: TM Series – Iron Core Linear Motors
| Magnet Plate Dimensions | |||
| Le (mm) | 96 | 144 | 384 |
| M5 bolts | 4 | 6 | 16 |
| Mass (kg/m) | 2.1 | ||
Magnet plates can be butted together.
Product Technical Drawings: TM Series – Iron Core Linear Motors












