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TBW Series – Iron Core Linear Motors

Water cooled iron core linear motors delivering continuous force from 1200 N to 3000 N when liquid cooled, peak force from 2400 N to 6000 N and speeds up to 6 m/s at 560 V. The highest force platform in the range, with integrated cooling channels at no additional cost.

Product Overview

Motion Type

Linear

Technology

Iron Core

Product Range

Linear Motors

Series

TBW

Key Performance Specs

  • Continuous Force: 3000 mm
  • Maximum Speed: 6 m/s

Key Features

  • Water cooled continuous force range 1200 N to 3000 N
  • Air cooled continuous force range 1140 N to 2850 N
  • Peak force range 2400 N to 6000 N
  • Ultimate force range 2700 N to 6750 N
  • Speeds up to 6 m/s at 560 V
  • Motor width 130 mm, height 47 mm
  • Coil unit length 344 mm to 852 mm
  • Magnet pitch 24 mm
  • Integrated water cooling channels at no additional cost
  • N and S winding variants available
  • PTC 1 kΩ and KTY 83-122 thermal protection

TBW Series – Iron Core Linear Motors

TBW Series of Iron Core Linear Motors

The TBW 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 TBW 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 TBW 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.

Integrated Water Cooling

Every motor in the TBW Series features integrated cooling channels, allowing a liquid cooled system to be set up easily and at no additional cost. Water cooling raises continuous force across the range, from 1140 N to 1200 N on the TBW18 and from 2850 N to 3000 N on the TBW45, making the series well suited to sustained high duty cycle applications where heat would otherwise limit output.

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: TBW Series – Iron Core Linear Motors

TBW Series Iron Core Symbol Unit TBW18 N TBW18 S TBW30 N TBW30 S TBW45 N TBW45 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 2700 4500 6750
Peak force (magnet @ 25°C) Fp N 2400 4000 6000
Continuous force water cooled (coils @ 100°C) Fcw N 1200 2000 3000
Continuous force air cooled (coils @ 100°C) Fc N 1140 1900 2850
Maximum speed (@ 560 V) vmax m/s 3 6 2.5 6 2.5 6
Motor force constant (mount. sfc. @ 20°C) K N/Arms 186 90 225 93 225 93
Motor constant (coils @ 25°C) S N²/W 2580 4300 6450
Ultimate current (magnet @ 25°C) Iu Arms 19.6 41 27 65 41 98
Peak current (magnet @ 25°C) Ip Arms 15.0 31.1 20.7 50 31 75
Continuous current water cooled (coils @ 100°C) Icw Arms 6.5 13.4 8.9 21.5 13.4 32.3
Back EMF phase-phase peak Bemf V/m/s 152 76 183 76 183 76
Resistance per phase (coils @ 25°C ex. cable) Rph Ω 4.4 1.0 3.9 0.66 2.6 0.44
Induction per phase (I < 0.6 Ip) Lph mH 35 8 31 5 21 3
Electrical time constant (coils @ 25°C) τe ms 8 8 8
Maximum continuous power loss (all coils) Pc W 726 1209 1804
Thermal resistance (coils to mount. sfc.) Rth °C/W 0.10 0.06 0.04
Thermal time constant (up to 63% max. coil temp.) τth s 87 87 87
Water cooling flow (for ΔT=3K) Φw l/min 3.1 5.2 7.8
Water cooling pressure drop (order of magnitude) ΔPw bar 1.0 1.5 2.5
Temperature cut-off / sensor PTC 1 kΩ / KTY 83-122
Coil unit weight (ex. cables) W kg 7.3 12.3 18.2
Coil unit length (ex. cables) L mm 344 580 852
Motor attraction force (rms @ 0 A) Fa N 4900 8300 12450
Magnet pitch NN τ mm 24 24 24
Cable mass m kg/m 0.3 0.6
Cable type (power), length 1 m d mm (AWG) 11.9 (14) 16.9 (10)
Cable type (sensor), length 1 m d mm (AWG) 4.3 (26)

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.

Product Dimensions: TBW Series – Iron Core Linear Motors

Magnet Plate Dimensions
Le (mm) 192 288
M5 bolts 8 12
Mass (kg/m) 10.5

Magnet plates can be butted together. The TBW18 is shown on a 2 x 192 mm magnet plate.

Product Technical Drawings: TBW Series – Iron Core Linear Motors

TBW Series - Iron Core Linear Motors technical drawing