UF Series – Ironless Linear Motors
High precision ironless linear motors with continuous force from 19.5 N to 39 N, peak force from 42.5 N to 85 N and speeds up to 5.1 m/s at 60 V. Direct drive design with zero cogging and integrated NTC temperature sensor.
Product Overview
| Motion Type | Linear |
|---|---|
| Technology | Ironless |
| Product Range | Linear Motors |
| Series | UF |
Key Performance Specs
- Continuous Force: 39 mm
- Maximum Speed: 5.1 m/s
Key Features
- Continuous force range 19.5 N to 39 N
- Peak force range 42.5 N to 85 N
- Speeds up to 5.1 m/s at 60 V
- Motor size 16.15 mm wide x 53 mm high
- Magnet pitch 24 mm
- NTC temperature sensor fitted
- Ironless design for smooth, cog-free motion
- Direct drive technology with no mechanical transmission
UF Series – Ironless Linear Motors
UF Series of Ironless Linear Motors
The UF Series ironless 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 UF 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.
Ironless Linear Motor
The UF Series of ironless linear motors from Tecnotion offers a precision motion solution across a broad range of applications. These motors deliver exceptional precision and accurate motion, making them well suited to demanding tasks. Ironless linear motors also offer efficient thermal performance, preventing overheating and helping to extend motor life. The result is a reliable, efficient solution for applications that demand precision motion with zero cogging.
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: UF Series – Ironless Linear Motors
| UF Series Ironless | Symbol | Unit | UF3 | UF6 |
| Motor type, max voltage ph-ph | 3-phase synchronous ironless, 45 V ac rms (60 V dc) | |||
| Peak force (magnet @ 25°C) | Fp | N | 42.5 | 85 |
| Continuous force (coils @ 110°C) | Fc | N | 19.5 | 39 |
| Maximum speed (@ 60 V) | vmax | m/s | 5.1 | 5.1 |
| Motor force constant (mount. sfc. @ 20°C) | K | N/Arms | 12.3 | 12.3 |
| Motor constant (coils @ 25°C) | S | N²/W | 14.6 | 29.2 |
| Peak current (magnet @ 25°C) | Ip | Arms | 3.5 | 6.9 |
| Maximum continuous current (coils @ 110°C) | Ic | Arms | 1.58 | 3.17 |
| Back EMF phase-phase peak | Bemf | V/m/s | 10.1 | 10.1 |
| Resistance per phase (coils @ 25°C ex. cable) | Rph | Ω | 3.5 | 1.8 |
| Induction per phase | Lph | mH | 1.24 | 0.62 |
| Electrical time constant (coils @ 25°C) | τe | ms | 0.36 | 0.36 |
| Maximum continuous power loss (all coils) | Pc | W | 35 | 70 |
| Thermal resistance (coils to mount. sfc.) | Rth | °C/W | 2.4 | 1.2 |
| Thermal time constant (up to 63% max. coil temp.) | τth | s | 34 | 34 |
| Temperature sensor | NTC | NTC | ||
| Coil unit weight (ex. cables) | W | kg | 0.045 | 0.087 |
| Coil unit length (ex. cables) | L | mm | 49 | 97 |
| Motor attraction force | Fa | N | 0 | 0 |
| Magnet pitch NN | τ | mm | 24 | 24 |
| Cable mass | m | kg/m | 0.07 | 0.07 |
| Cable type (power and sensor), length 1 m | d | mm (AWG) | 4.3 (24) | |
| Cable life (FLEX), minimum | 15,000,000 cycles | |||
| Bending radius static, minimum | 5x cable diameter | |||
| Bending radius dynamic, minimum | 8x 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.
Product Dimensions: UF Series – Ironless Linear Motors
| Magnet Yoke Dimensions | ||
| Le (mm) | 72 | 120 |
| M4 bolts | 2 | 3 |
| Mass (kg/m) | 3.2 | |
Magnet yokes can be butted together.
Product Technical Drawings: UF Series – Ironless Linear Motors












