OCTO Series Multi-head Linear Actuator
Overview
OCTO SERIES MULTI-HEAD LINEAR ACTUATOR
Multi-Headed Linear Positioning Enclosed Stage
PBA Systems introduces OCTO, a multi-headed linear positioning enclosed stage ideal for applications that require independent control of multiple axes travelling on the same directional vector/plane. For further versatility, OCTO actuators provide two independent travel paths/lanes which allow for carriages on different lanes to overtake each other without risk of collision.
Powered by the DX series of ironless motors, the independent carriages are guided by linear encoders and precision recirculation linear ball bearing blocks on a single rail.
Each carriage has its own encoder readhead (Digital and analogue options available) and has a resolution of up to 80nm resolution when analogue encoder option is selected and used in tandem with PBA Maxtune drives --- This allows for extremely precise independent control of individual carriages.
- Multiple motors on single travel path
- Dual lane operations to allow for overtaking
- Custom strokes, and feedback resolution configurations
- Effective stroke - Up to 4m (Enclosed version: 2m Max)
- Cable carrier attachment
| Application |
|
D3
PBA OCTO
- Multi-axis Actuator
- Peak force to 145N, Continuous force to 29N
| SPECIFICATION | MODEL | ||
| OCTO-LXX-D3-C1 | |||
| Motor Parameters | Unit | S | P |
| Peak Force | N | 145 | |
| Continuous Force @ 120°C* | N | 29 | |
| Peak Power @ 120°C | W | 695 | |
| Continuous Power @ 120°C* | W | 28 | |
| Peak Current | Apk | 11.81 | 23.63 |
| Continuous Current @ 120°C* | Apk | 2.36 | 4.73 |
| Continuous Stall Current @ 120°C* | Arms | 1.75 | 3.50 |
| Force Constant | N/Apk | 12.3 | 6.1 |
| Back EMF Constant | Vpk/m/s | 14.1 | 7 |
| Coil Resistance L-L @ 25°C | Ohm | 4.8 | 1.2 |
| Coil Resistance L-L @ 120°C* | Ohm | 6.6 | 1.7 |
| Inductance L-L @ 1kHz | mH | 3.00 | 0.75 |
| Motor Constant @ 25°C* | N/√W | 6.46 | |
| Motor Constant @ 120°C* | N/√W | 5.49 | |
| Max. Terminal Voltage | Vdc | 400 | |
| Thermal Resistance @ 120°C* | °C/W | 3.42 | |
| Max. Coil Temperature | °C | 120 | |
| Electrical Cycle Length | mm | 60 | |
| Specifications | |||
| Repeatability** | μm | ±2.0 | |
| Accuracy*** | μm | ±30μm/300mm | |
| Straightness*** | μm | ±10μm/200mm | |
| Flatness*** | μm | ±10μm/200mm | |
| Linear Guide Rated Load and Static Moment | |||
| Model Code | LM Guide | ||
| Block Quantity | 1 | ||
| Maximum Bearing Load | kN | 4.8 | |
| Pitch Moment | Nm | 15.2 | |
| Yaw Moment | Nm | 8.1 | |
| Roll Moment | Nm | 28.1 | |
Notes:
- 1. Apk=1.414*Arms; Vpk=1.414*Vrms
- 2. *Ambient temperature 25°C, heat dissipation by natural convection, without heat sink attached.
- 3. Specifications tolerance - inductance +/-30%, all others +/-10% (for motor parameters).
- 4. Peak force and current - 1 second duration
- 5. ** Depend on encoder resolution
- 6. *** Specific accuracy, straightness and flatness requirement, contact PBA for more information.
- 7. For customized stroke length, contact PBA.
- 8. For different motor models, contact PBA.
OCTO Drawing
| MOTOR MODEL | STROKE (S) mm |
ACTUATOR LENGTH (L) mm |
P | Q | SLIDER MASS kg |
MODULE MASS kg |
| C1 | 350 | 728 | 04 | 10 | 0.8 | 10.4 |
| 650 | 1028 | 06 | 14 | 19.8 | ||
| 950 | 1328 | 08 | 18 | 29.2 | ||
| 1250 | 1628 | 10 | 22 | 38.6 | ||
| 1550 | 1928 | 12 | 26 | 48.0 | ||
| 1850 | 2228 | 14 | 30 | 57.4 | ||
| 2150 | 2528 | 16 | 34 | 66.8 | ||
| 2450 | 2828 | 18 | 38 | 76.2 |