LAR - LINEAR-ROTARY ACTUATORS
The LAR range of multi patented voice coil actuators are based on the design of the LAL linear voice coil actuators have been designed with the most demanding & arduous of automation tasks in mind. The LAR series adds the option of a rotary movement of the shaft to the LAL versions. The motors used for the rotary movement can be direct drive motors or gear motors; the encoder resolution ranges from 4,864 to 20,000 counts per revolution depending on model.
The LAR rotary/linear actuator units find their applications in pick & place systems, parts feeders & electronic assembly machines, test and measuring applications along with many, many others where the need for speed, accuracy, precision & repeatability is paramount and where the linear movement needs the addition of a rotary movement. The option to measure force by means of measuring current and the possibility to offer linear/rotary actuators makes the LAR rotary/linear actuators the ideal choice for applications in test and measuring applications in quality inspection e.g. in automotive production.
Most important properties:
- no cogging
- stroke 5 / 10 / 15 / 25 / 50 / 100mm (depending on model)
- peak force up to 500N
- high dynamic response, low moving mass
- high overload capacity (max. ED 40% at peak force)
- limit- and home switches integrated
- encoder resolution 5 / 1 / 0.5µm
- repeatability +/-2 counts
- various shaft configurations
Options for linear/rotary actuators:
- vacuum
- return spring (for vertical applications, other wise the shaft could fall down in case of power loss and lead to damages inside the machine or parts)
- custom shafts
- enhanced force capabilities by 48V coil or double coil
- enhanced accuracy of force measurement by usage of "low friction" linear guide
- enhanced life by extra wide linear guide
| Model drawing  |
supply voltage Vdc |
stroke mm |
peak force N |
cont. force N |
force constant N/A |
overall weight kg |
moving mass kg |
peak torque Nm |
gear ratio |
encoder resolution counts |
max. velocity rpm |
| LAR15-015-5 | 24 | 15 | 5 | 2 | 2.7 | 0.25 | 0.095 | 0.008 | / | 20,000 | 500 |
| LAR20-015-5 | 24 | 15 | 7 | 2.8 | 5 | 0.41 | 0.09 | 0.008 | / | 20,000 | 500 |
| LAR31-017-5 | 24 | 17 | 14 | 5.6 | 10 | 0.85 | 0.22 | 0.066 | / | 20,000 | 500 |
| LAR31-027-5 | 24 | 27 | 12 | 4,8 | 7 | 0.85 | 0.2 | 0.066 | / | 20,000 | 500 |
| LAR31-031-5 | 24 | 31 | 11 | 4 | 7 | 0.84 | 0.19 | 0.06 | / | 40,980 | 2,000 |
| LAR35-025 | 24 | 25 | 12 | 4.8 | 7 | 1.2 | 0.14 | 0.085 | / | 20,000 | 500 - 5,000 |
| LAR35-050 | 24 | 50 | 10 | 4 | 7 | 1.4 | 0.29 | 0.085 | / | 20,000 | 500 - 5,000 |
| LAR55-050-5 | 24 | 50 | 25 | 10 | 19 | 3.1 | 0.5 | 0.2 | / | 2k - 28k | 500 - 5,000 |
| LAR55-050-7 | 48 | 50 | 40 | 16 | 27 | 2.8 | 0.31 | 0.2 | / | 2k - 28k | 500 - 5,000 |
| LAR55-100-5 | 24 | 100 | 16 | 6.4 | 13 | 3.85 | 0.5 | 0.2 | / | 2k - 28k | 500 - 5,000 |
| LAR55-100-7 Zeichnung für 24V!) |
48 | 100 | 25 | 10 | 18 | 3.85 | 0.5 | 0.2 | / | 2k - 28k | 500 - 5,000 |
| LAR95-015-7 | 48 | 15 | 84 | 33 | 53 | 3.5 | 0.9 | 0.2 | / | 2k - 132k | 75 - 5,000 |
| LAR95-050-7 | 48 | 50 | 65 | 26 | 41 | 4 | 0.9 | 0.2 | / | 2k - 132k | 75 - 5,000 |
| LAR300-050-8 | 48 | 50 | 202 | 80 | 86 | 9.5 | 1 | 0.2 | / | 2k - 132k | 75 - 5,000 |
