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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 

Part Numbering System



D3
PBA OCTO
•  Multi-axis Actuator
•  Peak force to 145N, Continuous force to 29N
 

SPECIFICATION		MODEL
		DX30B/BT
		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	3.5
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	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 Spindle X (Thailand) Co.,Ltd

OCTO Drawing