Voice Coil Positioning Stages

Product Info | Applications | Operating Info | Ordering Info | Dimensions | Specifications | Custom Application Samples

Featured Product:

Voice Coil Positioning Stages This custom gold plated, Voice Coil Linear Positioning Stage (VCS10-023-BS-01-MCS-R) was designed for a laser beam steering application. It has a stroke length of 1.0 in. (25 mm), a continuous force of 2 lbs (8.9 N) and a peak force of 6 lbs (26.7 N) and has a payload capacity of 2 lbs (.91 Kg) and a positioning resolution of 1 micron.

Product Info:

APPROPRIATE VOICE COIL APPLICATION SPECIFICATIONS

 

Travel	0.04 to 3 inches	[1 to 75 mm]
Acceleration	0.1 to 20 G's	0.1 to 20 G's
Peak Force	0.75 to 300 lbs	[3 to 1333N]
Continuous Force	0.25 to 100 lbs	[1 to 444 N]
Resolution	.000004" to .0005"	[0.1 to 12 micron]

The Voice Coil Positioning Stage is a compact, small footprint positioning stage. It is ideal for closed loop positioning applications with a short stroke where intricate position, velocity, and acceleration control is necessary.

Their compact size allows them to fit into small spaces. They have very low electrical and mechanical time constants. The low moving mass allows for high accelerations of light payloads.

The ironless core coil assembly has no magnetic attractive force to the stationary magnet assembly, which reduces the load on the bearing system, which increases the life of the bearing. There are no magnetic drag forces (hysteresis), which allows for higher accelerations.

These actuators are wound in such a way that no commutation is required for motion to occur. Electrical devices such as Hall Effects are not necessary. The result is a much simpler and more reliable system.

The VCS positioning stage incorporates the latest in linear motion technology :

• Motors: non-commutated moving coil (NCC) or moving magnet (NCM) voice coil motors.
• Bearings: Linear guidance and stiffness is achieved by using high precision ball slides or cross roller slides. Other types of bearings and bushings are available depending on the application.
• Feedback: Non-contact optical or magnetic linear encoders with a center reference mark for homing. Typical encoder output is A and B square wave signals but sinusoidal output is available as an option. Analog feedback is available via LVDT or Force Transducer.
• Limit Switches: Soft limits are typically used and monitored by the controller. But, if needed, end of travel limit switches may be included at both ends of the stroke. The switches can be either active high/low (5V to 24V). The limit switches can be used to shut down the amplifier or to signal the controller that an error has occurred. The limit switches can be an integral part of the encoder or can be mounted separately if required.
• Hard Stops: Hard stops are incorporated into the ends of the stage to prevent over travel damage in the event of servo system failure.

Advantages:

• Small Size, High Force to Weight Ratio
• High Accelerations
• No Cogging or Commutation
• Custom Designs with Quick Turnaround Times
• High Flux Density Neodymium Magnets are Used
• Low Cost Economical Solution

Applications:

• Mirror Tilt and Focusing
• Z Axis for Pick and Place Equipment
• Medical Diagnostic Probes and Laser Beam Steering
• Vision Inspection
• Miniature Position Control
• Clean room

Operating Info:

Required Electronics:
Because of the very low inductance of the actuator, a DC linear servo amplifier is required to provide power to the actuator. If a PWM amplifier is used, it is recommended to have a switching frequency of 50kHz or higher. A linear power supply is also recommended for better performance and noise reduction.

Environmental Considerations:
The stage is a precision device with sensitive components and should not be mounted in an environment that is wet or excessively dirty. The optical encoder scale is open and it should be kept free of debris in order to operate properly. The magnetic encoder scale should be kept away from any ferrous or magnetic materials. The magnetic assembly should not be placed in an area where loose steel particles can be drawn into the magnetic gap. The stage should not be mounted in an environment with ambient temperatures >50ºC.

Mounting:
The stage should be mounted to a flat and stiff surface. Counter bored thru holes are present in the base to allow for the mounting of the stage to the customers system. The moving slide assembly has threaded holes for attaching the payload. Custom mounting holes are available if the customer desires so. The stage may be mounted in any orientation. When mounting the stage with the slide moving vertically, it should be noted that the stage will be required to generate additional force due to gravity and that the moving slide will drop down to the bottom hard stop when power fails.

Maintenance:
The ball bearing guides in the stage should be periodically lubricated with the manufacturers recommended grease. The open encoder scale should be wiped down occasionally to clear it of any dust or particles to ensure trouble free operation.

Ordering Info:

Stages can be ordered for any stroke up to 2 inches and any continuous force up to 100 lbs. The stages are built as the orders are placed, they are not stocked, as each customer requirement is different.

It should be noted that for both types of actuators (NCC & NCM) used for these stages, longer strokes are available but the efficiency or motor constant (Km) decreases as the stroke increases. This is due to the fact that the motor constant is inversely proportional to the stroke. If higher efficiency is desired for longer stroke actuators, the coil assembly can be wound as a multiphase coil and then it will have to be commutated. Please consult the factory for long stroke applications.

Model # VXSAA - BBB - CC - DD - Y
where:
X is C for moving coil NCC or M for moving magnet NCM type motor
AA is the stroke in inches (0.5 inch stroke is 05 & 1.0 inch stroke is 10)
BBB is continuous force in lbs (0.5 lbs is 005 & 1.0 lbs is 010)
CC is the bearing type BS = Ball Slide
CR = Cross Roller
LB = Linear Bearing
AB = Air Bushing
RB = Roller Bushing
JB = Jeweled Bearing
DD is encoder resolution (01 is for 1 micron)
Y is Special option (M is for magnetic encoder)

i.e. VCS10-023-BS-01-M is a NCC type motor with 1.0" stroke, 2.3 lbs of continuous force, Ball Slide stage with a 1 Micron Magnetic encoder

Specifications:

	Model #	Image	Stroke	Continuous Force	Peak Force	Motor Constant	Bearing Type	Encoder Resolution	Encoder Type	Moving Part	Motor P/N
1	VCS01-001-CR-001-F		0.125 in 3.2 mm	0.06 lbs 0.27 N	0.18 lbs 0.80 N	0.08 lbs/√watt 0.36 N/√watt	Cross Roller	0.1 Micron	Optical	Coil Assembly	NCC01-04-001-1X
2	VCS03-050-BS-01-MC		0.25 in 6.4 mm	5.0 lbs 22.2 N	15.0 lbs 66.7 N	1.82 lbs/√watt 8.07 N/√watt	Cross Roller	1 Micron	Magnetic	Coil Assembly	NCC03-15-050-2X
3	VCS03-050-CR-0005-MC		0.25 in 6.4 mm	5.0 lbs 22.2 N	15.0 lbs 66.7 N	1.82 lbs/√watt 8.07 N/√watt	Cross Roller	0.05 Micron	Optical	Coil Assembly	NCC03-15-050-2X
4	VCS03-050-CR-001-C		0.25 in 6.4 mm	5 lbs 22.3 N	15 lbs 66.8 N	1.38 lbs/√watt 6.14 N/√watt	Cross Roller	0.1 Micron	Magnetic	Coil Assembly	NCC03-15-050-2X
5	VCS05-011-BS-01-M		0.50 in 12.7 mm	1.1 lbs 4.9 N	3.3 lbs 14.7 N	0.67 lbs/√watt 2.95 N/√watt	Ball Slide	1 Micron	Magnetic	Magnet Assembly	NCC05-11-011-1X
6	VCS05-011-CR-001-F		0.50 in 12.7 mm	1.1 lbs 4.9 N	3.3 lbs 14.7 N	0.67 lbs/√watt 2.95 N/√watt	Cross Roller	0.1 Micron	Optical	Coil Assembly	NCC05-11-011-1X
7	VCS05-011-CR-01-MCH		0.50 in 12.7 mm	1.1 lbs 4.9 N	3.3 lbs 14.7 N	0.67 lbs/√watt 2.98 N/√watt	Cross Roller	1 Micron	Magnetic	Coil Assembly	NCC05-11-011-1X
8	VCS05-060-AB-01		0.50 in 12.7 mm	6.0 lbs 26.4 N	18.0 lbs 79.2 N	1.78 lbs/√watt 7.83 N/√watt	Air Bushing	1 Micron	Optical	Magnet Assembly	NCC05-18-060-2X
9	VCS05-060-BS-01		0.50 in 12.7 mm	6.0 lbs 26.4 N	18.0 lbs 79.2 N	1.78 lbs/√watt 7.83 N/√watt	Ball Slide	1 Micron	Optical	Magnet Assembly	NCC05-18-060-2X
10	VCS05-060-BS-01-MC		0.50 in 12.7 mm	6.0 lbs 26.4 N	18.0 lbs 79.2 N	1.78 lbs/√watt 7.83 N/√watt	Ball Slide	1 Micron	Magnetic	Coil Assembly	NCC05-18-060-2X
11	VCS05-060-BS-01-MCD		0.50 in 12.7 mm	6.0 lbs 26.4 N	18.0 lbs 79.2 N	1.78 lbs/√watt 7.83 N/√watt	Ball Slide	1 Micron	Magnetic	Coil Assembly	NCC05-18-060-2X
12	VCS05-060-BS-12		0.50 in 12.7 mm	6.0 lbs 26.4 N	18.0 lbs 79.2 N	1.78 lbs/√watt 7.83 N/√watt	Ball Slide	12 Micron	Optical	Magnet Assembly	NCC05-18-060-2X
13	VCS05-060-CR-001		0.50 in 12.7 mm	6.0 lbs 26.4 N	18.0 lbs 79.2 N	1.78 lbs/√watt 7.83 N/√watt	Cross Roller	0.1 Micron	Optical	Magnet Assembly	NCC05-18-060-2X
14	VCS05-060-CR-001-V		0.50 in 12.7 mm	6.0 lbs 26.4 N	18.0 lbs 79.2 N	1.78 lbs/√watt 7.83 N/√watt	Cross Roller	0.1 Micron	Optical	Magnet Assembly	NCC05-18-060-2X
15	VCS05-060-CR-01-M		0.50 in 12.7 mm	6.0 lbs 26.4 N	18.0 lbs 79.2 N	1.78 lbs/√watt 7.83 N/√watt	Cross Roller	1 Micron	Magnetic	Magnet Assembly	NCC05-18-060-2X
16	VCS05-060-VBS-V01		0.50 in 12.7 mm	6.0 lbs 26.4 N	18.0 lbs 79.2 N	1.78 lbs/√watt 7.83 N/√watt	Ball Slide	1 Micron	Optical	Magnet Assembly	NCC05-18-060-2X
17	VCS05-11-B-P-C		0.5 in 12.7 mm	1.1 lbs 4.9 N	3.3 lbs 14.7 N	0.67 lbs/√watt 2.98 N/√watt	Linear Bushing	Linear Potentiometer Micron	Magnetic	Coil Assembly	NCC05-11-011-1X
18	VCS06-005-BS-01-M		0.60 in 15.2 mm	0.5 lbs 2.2 N	1.5 lbs 6.6 N	0.37 lbs/√watt 1.65 N/√watt	Ball Slide	1 Micron	Magnetic	Magnet Assembly	NCC06-08-005-2X
19	VCS06-005-BS-12		0.60 in 15.2 mm	0.5 lbs 2.2 N	1.5 lbs 6.6 N	0.37 lbs/√watt 1.65 N/√watt	Ball Slide	12 Micron	Optical	Magnet Assembly	NCC06-08-005-2X
20	VCS06-010-BS-01-MXY		0.62 in 15.8 mm	0.8 lbs 3.6 N	2.3 lbs 10.2 N	0.34 lbs/√watt 1.51 N/√watt	Ball Slide	1 Micron	Magnetic	Coil Assembly	NCC06-24-010-XY
21	VCS08-225-LB-01-C		0.80 in 20.3 mm	22.5 lbs 100 N	67.5 lbs 300 N	4.00 lbs/√watt 17.8 N/√watt	Linear Bushing	1 Micron	Optical	Coil Assembly	NCC08-33-225-2X
22	VCS08-250-CR-01-MC		0.80 in 20.3 mm	35 lbs 156 N	105 lbs 467 N	5.8 lbs/√watt 25.8 N/√watt	Cross Roller	0.1 Micron	Magnetic	Coil Assembly	NCC08-34-350-2X
23	VCS10-023-BS-01		1.00 in 25.4 mm	2.3 lbs 10.2 N	6.9 lbs 30.7 N	0.81 lbs/√watt 3.56 N/√watt	Ball Slide	1 Micron	Optical	Magnet Assembly	NCC10-15-023-1X
24	VCS10-023-BS-01-M		1.00 in 25.4 mm	2.3 lbs 10.2 N	6.9 lbs 30.7 N	0.81 lbs/√watt 3.56 N/√watt	Ball Slide	1 Micron	Magnetic	Magnet Assembly	NCC10-15-023-1X
25	VCS10-023-BS-01-MC		1.00 in 25.4 mm	2.3 lbs 10.2 N	6.9 lbs 30.7 N	0.81 lbs/√watt 3.56 N/√watt	Ball Slide	1 Micron	Magnetic	Coil Assembly	NCC10-15-023-1X
26	VCS10-023-BS-01-MCS-R		1 in 24.4 mm	2.3 lbs 10.2 N	6.9 lbs 30.7 N	0.85 lbs/√watt 3.78 N/√watt	Ball Slide	1 Micron	Magnetic	Coil Assembly	NCC10-15-023-1X
27	VCS10-023-BS-01-MH		1.00 in 25.4 mm	2.3 lbs 10.2 N	6.9 lbs 30.7 N	0.81 lbs/√watt 3.56 N/√watt	Ball Slide	1.0 Micron	Magnetic	Magnet Assembly	NCC10-15-023-1H
28	VCS10-023-BS-12		1.00 in 25.4 mm	2.3 lbs 10.2 N	6.9 lbs 30.7 N	0.81 lbs/√watt 3.56 N/√watt	Ball Slide	12 Micron	Optical	Magnet Assembly	NCC10-15-023-1X
29	VCS10-023-LB-01-MD		1.00 in 25.4 mm	2.3 lbs 10.2 N	6.9 lbs 30.7 N	0.81 lbs/√watt 3.56 N/√watt	Linear Bushing	1 Micron	Magnetic	Magnet Assembly	NCC10-15-023-1X
30	VCS10-027-CR-001		1.00 in 25.4 mm	2.7 lbs 12.0 N	8.1 lbs 36.0 N	0.76 lbs/√watt 3.38 N/√watt	Cross Roller	0.1 Micron	Optical	Coil Assembly	NCC10-15-027-1RC
31	VCS10-046/023-CR-001-CXY		1.0 in 25.4 mm	4.6 lbs 20.4 N	13.8 lbs 61.4 N	1.7 lbs/√watt 7.5 N/√watt	Cross Roller	0.1 Micron	Optical	Magnet Assembly	NCC10-15-023-1X
32	VCS10-046-BS-01-M		1.00 in 25.4 mm	4.6 lbs 20.4 N	13.8 lbs 61.4 N	1.7 lbs/√watt 3.56 N/√watt	Ball Slide	1 Micron	Magnetic	Magnet Assembly	NCC10-15-023-1X
33	VCS12-1000-LB-C		1.2 in 30.5 mm	100 lbs 454 N	300 lbs 1362 N	11.8 lbs/√watt 52.5 N/√watt	Linear Bushing	0..1 Micron	Optical	Coil Assembly	NCC12-60-1000-2X
34	VCS15-050-AB-LV-2		1.5 in 38.1 mm	8.4 lbs 37.4 N	25.2 lbs 112 N	1.48 lbs/√watt 6.59 N/√watt	Air Bushing	LVDT Micron	Magnetic	Coil Assembly	NCC15-24-050-1R
35	VCS15-084-CR-001-CS		1.5 in 38.1 mm	8.4 lbs 37.4 N	25.2 lbs 112 N	1.48 lbs/√watt 6.59 N/√watt	Cross Roller	0.1 Micron	Optical	Coil Assembly	NCC15-24-050-1R
36	VCS15-084-CR-001-XY		2 in 50.8 mm	2 lbs 8.9 N	6 lbs 26.7 N	0.75 lbs/√watt 3.34 N/√watt	Cross Roller	0.1 Micron	Optical	Coil Assembly	NCC20-18-020-1X
37	VCS20-020-BS-01-M		2.00 in 50.8 mm	2.0 lbs 8.9 N	6.0 lbs 26.6 N	0.73 lbs/√watt 3.55 N/√watt	Ball Slide	1 Micron	Magnetic	Magnet Assembly	NCC20-18-020-1X
38	VCS20-020-BS-01-MC		2.00 in 50.4 mm	2.0 lbs 8.9 N	6.0 lbs 26.6 N	0.73 lbs/√watt 3.55 N/√watt	Ball Slide	1 Micron	Magnetic	Coil Assembly	NCC20-18-020-1X
39	VCS20-020-CR-001-CS		2 in 50.8 mm	2 lbs 8.9 N	6 lbs 26.7 N	0.75 lbs/√watt 3.34 N/√watt	Cross Roller	0.1 Micron	Magnetic	Coil Assembly	NCC20-18-020-1X
40	VCS20-020-CR-001-XY		2.00 in 50.8 mm	2.0 lbs 8.9 N	6.0 lbs 26.6 N	0.73 lbs/√watt 3.55 N/√watt	Cross Roller	0.1 Micron	Optical	Magnet Assembly	NCC20-18-020-1X
41	VCS40-020-CR-01-MF		4.00 in 102 mm	2.0 lbs 8.9 N	6.0 lbs 26.6 N	0.56 lbs/√watt 2.50 N/√watt	Cross Roller	1 Micron	Magnetic	Magnet Assembly	NCC52-20-020-1X
42	VMS02-012-JB-01		0.20 in 5.1 mm	1.2 lbs 5.3 N	3.6 lbs 16.0 N	0.49 lbs/√watt 2.17 N/√watt	Jeweled Bearing	0.5 Micron	Optical	Magnet Assembly	NCM02-10-012-2JBE
43	VMS02-035-2F-05-M		0.11 in 2.8 mm	3.5 lbs 15.6 N	10.5 lbs 46.7 N	0.90 lbs/√watt 3.99 N/√watt	Two Flexures	5.0 Micron	Magnetic	Magnet Assembly	NCM02-17-035-2F
44	VMS02-035-BS-001		0.22 in 5.6 mm	3.5 lbs 15.6 N	10.5 lbs 46.7 N	1.02 lbs/√watt 4.54 N/√watt	Ball Slide	0.1 Micron	Optical	Magnet Assembly	NCM02-17-035-2F
45	VMS02-035-CR-001-V		0.22 in 5.6 mm	3.5 lbs 15.6 N	10.5 lbs 46.7 N	5.05 lbs/√watt 22.5 N/√watt	Cross Roller	0.1 Micron	Magnetic	Magnet Assembly	NCM02-17-035-2F
46	VMS05-180-LB-01-LS		0.50 in 12.7 mm	18.0 lbs 80 N	54.0 lbs 240 N	2.95 lbs/√watt 13.1 N/√watt	Linear Bushing	1 Micron	Magnetic	Magnet Assembly	NCM05-28-180-2LB
47	VMS05-180-LB-12		0.50 in 12.7 mm	18.0 lbs 79.2 N	54.0 lbs 238 N	2.95 lbs/√watt 13.1 N/√watt	Linear Bushing	12 Micron	Optical	Magnet Assembly	NCM05-28-180-2LB
48	VMS05-180-RB-001		0.50 in 12.7 mm	18.0 lbs 79.2 N	54.0 lbs 238 N	2.95 lbs/√watt 13.1 N/√watt	Roller Bushing	0.1 Micron	Optical	Magnet Assembly	NCM05-28-180-2LB
49	VMS05-360-LB-01-M		0.50 in 12.7 mm	36.0 lbs 160 N	108 lbs 480 N	5.90 lbs/√watt 26.2 N/√watt	Linear Bushing	1 Micron	Magnetic	Magnet Assembly	NCM05-28-180-2LB
50	VMS08-100-LB-01LS		0.75 in 19.1 mm	10 lbs 45 N	30 lbs 134 N	2.16 lbs/√watt 9.6 N/√watt	Linear Bushing	1 Micron	Magnetic	Magnet Assembly	NCM08‐25‐100‐2LB
51	VMS08-100-LB-LS		0.75 in 19.1 mm	10 lbs 45 N	30 lbs 134 N	2.16 lbs/√watt 9.6 N/√watt	Linear Bushing	Micron	Magnetic	Magnet Assembly	NCM08-25-100-2LB
52	VMS10-020-LB-12		1.00 in 25.4 mm	2.0 lbs 8.9 N	6.0 lbs 26.6 N	1.05 lbs/√watt 4.62 N/√watt	Linear Bushing	12 Micron	Optical	Magnet Assembly	NCM10-15-020-2LB
53	VMS30-090-LB-1S		3 in 76.2 mm	9 lbs 40.1 N	27 lbs 120 N	0.82 lbs/√watt 3.6 N/√watt	Linear Bushing	1 Micron	Magnetic	Magnet Assembly	NCM30-22-090-2LB