PBA Systems Pte Ltd - The Leader in Linear Motors
The Leader in Linear Motors

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Circular Voice Coil Motor - CVC

  • Direct drive
  • Peak force to 384.44N, Continuous force to 128.15N
  • Fast response, low moving mass
  • Non contact between core and coil movement
  • Excellent reliability

Introduction

Ultra High Frequency

short stroke motion system

Ultra High Frequency for Short Stroke Motion Systems

PBA’s Circular voice coils motors are simple electric linear motors consisting of a Magnetic housing and a lightweight coil. Voice coil motors do not need commutation and are often used for pure frequency oscillation. However, sub-micron positional control is easily achieved when worked in tandem with high resolution linear encoders.

Applying a voltage across the terminals of the motor causes the motor to move to one direction. Reversing the polarity of the applied voltage will move the motor to the opposite direction. The generated force is proportional to the current that flows through the motor coil. This force is almost constant in the specified stroke range of the motor. The non-commutated motor construction increases reliability and the direct coupling of the motor to the load allows for dynamic acceleration/deceleration and resultant high speed operation.

  • Zero Cogging, zero backlash and zero hysteresis
  • Extremely dynamic and high frequency motion profile
  • Negligible speed and force ripple at low speeds
  • Multiple Diameter sizes and force options
  • Simple operation – Only 2 terminals connections
  • High force versions available
  • Zero maintenance
  • High reliability

Specifications 1

SPECIFICATION Model
CVC16-SF-5 CVC19-SF-6 CVC20-SF-10 CVC24-SF-12 CVC26-SF-7 CVC30-SF-15 CVC35-HF-8 CVC38-SF-10
Performance Unit  
Stroke mm 5 6.4 10 11 7 15 8 10
Peak Force N 4.04 5.90 8.21 13.52 17.11 22.66 144.00 42.09
Continuous Stall Force @ 100°C* N 0.71 1.03 1.43 2.39 3.01 3.97 25.20 7.32
Continuous Stall Force @ 125°C* N 0.81 1.18 1.64 2.70 3.42 4.53 28.80 8.42
Peak Power @ 125°C* W 60.99 81.72 94.18 120.97 131.78 154.89 438.08 204.91
Continuous Power @ 100°C W 1.76 2.32 2.66 3.50 3.78 4.41 12.45 5.75
Continuous Power @ 125°C* W 2.44 3.27 3.77 4.84 5.27 6.20 17.52 8.20
Electrical
Peak Current A 5.06 4.54 4.28 4.25 2.90 3.13 4.00 3.76
Continuous Stall Current @ 100°C* A 0.892 0.793 0.746 0.750 0.510 0.548 0.700 0.653
Continuous Stall Current @ 125°C* A 1.011 0.907 0.855 0.850 0.580 0.626 0.800 0.751
Force Constant @ Mid Stroke N/A 0.80 1.30 1.92 3.18 5.90 7.24 36.00 11.21
Back EMF Constant @ Mid Stroke V/m/s 0.80 1.30 1.92 3.18 5.90 7.24 36.00 11.21
Coil Resistance @ 25°C ohm 1.70 2.83 3.67 4.77 11.16 11.26 19.50 10.35
Coil Resistance @ 100°C* ohm 2.22 3.69 4.78 6.22 14.54 14.67 25.41 13.49
Coil Resistance @ 125°C* ohm 2.39 3.97 5.15 6.70 15.67 15.81 27.38 14.53
Inductance @ 1kHz(Inside fully) mH 0.14 0.29 0.44 1.20 2.95 2.38 8.24 3.47
Motor Constant @ 125°C* N/√W 0.61 0.77 1.00 1.46 1.77 2.16 8.15 3.48
Max.Terminal Voltage Vdc 48
Thermal
Thermal Resistance @ 100°C* °C/W 42.55 32.34 28.18 21.45 19.83 17.02 6.02 13.04
Thermal Resistance @ 125°C* °C/W 40.99 30.59 26.55 20.67 18.97 16.14 5.71 12.20
Max. Coil Temperature °C 150
Mechanical
Coil Assembly Weight kg 0.005 0.005 0.010 0.018 0.016 0.025 0.110 0.045
Magnet Assembly Weight kg 0.010 0.023 0.032 0.045 0.053 0.100 0.390 0.168

Notes:

  1. 1. *Ambient temperature 25°C, heat dissipation by natural convection, without heat sink attached.
  2. 2. Specification tolerance-inductance +/-30%, all others +/-10%.
  3. 3. Peak force and current - 1 second duration.

Specifications are subject to change without prior notice

Specifications 2

SPECIFICATION Model
CVC40-SF-5 CVC40-HF-6.5 CVC40-SF-20 CVC44-SF-13 CVC50-SF-30 CVC60-SF-25 CVC60-HF-20 CVC90-HF-20
Performance Unit  
Stroke mm 5 6.5 20 13 30 25 20 20
Peak Force N 34.09 92.42 47.92 54.32 74.91 120.33 218.50 640.74
Continuous Stall Force @ 100°C* N 5.92 16.09 8.34 9.41 13.14 20.90 37.72 111.41
Continuous Stall Force @ 125°C* N 6.82 18.48 9.58 10.86 14.98 24.07 43.70 128.15
Peak Power @ 125°C* W 140.63 289.27 240.73 264.20 381.62 463.70 760.32 1204.70
Continuous Power @ 100°C W 3.94 8.13 6.77 7.36 10.90 12.98 21.03 33.80
Continuous Power @ 125°C* W 5.63 11.57 9.63 10.57 15.26 18.55 30.41 48.19
Electrical
Peak Current A 4.41 3.59 3.13 5.60 4.23 5.85 4.75 15.77
Continuous Stall Current @ 100°C* A 0.766 0.624 0.545 0.970 0.742 1.016 0.820 2.742
Continuous Stall Current @ 125°C* A 0.882 0.717 0.626 1.120 0.846 1.170 0.950 3.154
Force Constant @ Mid Stroke N/A 7.73 25.78 15.31 9.70 17.71 20.57 46.00 40.63
Back EMF Constant @ Mid Stroke V/m/s 7.73 25.78 15.31 9.70 17.71 20.57 46.00 40.63
Coil Resistance @ 25°C ohm 5.15 16.03 17.50 6.00 15.19 9.65 24.00 3.45
Coil Resistance @ 100°C* ohm 6.71 20.89 22.80 7.82 19.79 12.57 31.27 4.50
Coil Resistance @ 125°C* ohm 7.23 22.51 24.57 8.42 21.33 13.55 33.70 4.84
Inductance @ 1kHz(Inside fully) mH 1.44 5.52 5.59 1.25 4.14 3.26 15.40 4.88
Motor Constant @ 125°C* N/√W 3.41 6.44 3.66 3.96 4.54 6.62 9.39 21.87
Max.Terminal Voltage Vdc 48 120
Thermal
Thermal Resistance @ 100°C* °C/W 19.05 9.22 11.07 10.20 6.88 5.78 3.57 2.22
Thermal Resistance @ 125°C* °C/W 17.78 8.64 10.39 9.46 6.55 5.39 3.29 2.08
Max. Coil Temperature °C 150
Mechanical
Coil Assembly Weight kg 0.023 0.075 0.060 0.040 0.100 0.200 0.410 1.190
Magnet Assembly Weight kg 0.078 0.255 0.230 0.300 0.526 0.668 1.140 2.425

Notes:

  1. 1. *Ambient temperature 25°C, natural convection, no heat sink attached.
  2. 2. Specification tolerance-inductance +/-30%, all others +/-10%.
  3. 3. Peak force and current - 1 second duration.

Specifications are subject to change without prior notice

Drawings

CVC Series

CVC Series Drawing

 
COIL UNIT CVC16-SF-5 CVC19-SF-6 CVC20-SF-10 CVC24-SF-12 CVC26-SF-7 CVC30-SF-15 CVC35-HF-8 CVC38-SF-10
A mm 16.0 19.0 20.0 24.0 26.0 30.0 35.0 38.0
B mm 13.4 15.7 16.6 21.0 22.0 24.6 30.4 31.2
C mm 10.8 15.8 19.0 19.0 20.0 24.5 80.8 27.5
D mm 16.5 24.0 31.0 30.0 27.5 39.0 92.5 39.0
E mm 7.0 9.0 10.0 19.0 12.0 16.0 27.0 20.0
F mm 7.0 9.0 10.0 12.7 12.0 12.6 12.6 20.0
G mm N/A N/A N/A ∅3.5(H7)↧5.0 M3↧THRU N/A ∅3.0↧6.0 N/A
H mm N/A N/A N/A ∅1.6↧1.7 N/A N/A N/A N/A
I mm N/A N/A N/A N/A N/A N/A N/A N/A
J mm N/A N/A N/A N/A N/A N/A N/A N/A
K mm N/A N/A N/A N/A N/A N/A N/A N/A
L mm N/A N/A N/A N/A N/A N/A ∅3.0(H7)↧5.0 N/A
M mm N/A N/A N/A N/A N/A N/A N/A N/A
N mm N/A N/A N/A N/A N/A N/A 27 N/A
X mm M2.5↧2.8 M3↧4.7 M3↧6.2 M2↧5.0 M2,M2.5,M3↧4.0 M3↧6.2 M3↧6.0 M4↧6.5
Y mm M2.5↧1.8 M3↧2.5 M3↧2.6 M2↧2.0 M3↧2.7 M3↧3.2 M3↧5.0 M4↧3.9
ϴ DEGREE 10° 25° 20° 20° 20° 20° -25° 20°
COIL UNIT CVC40-SF-5 CVC40-HF-6.5 CVC40-SF-20 CVC44-SF-13 CVC50-SF-30 CVC60-SF-25 CVC60-HF-20 CVC90-HF-20
A mm 40.0 40.0 40.0 44.0 50.0 60.0 60.0 90.0
B mm 34.0 34.8 33.2 37.2 42.4 50.6 52.0 81.6
C mm 12.0 40.5 32.5 31.8 43.0 43.5 90.0 90.0
D mm 17.5 49.3 49.8 44.5 67.6 66.1 118.0 109.4
E mm 20.0 20.0 20.0 25.4 20.0 30.0 44.0 48.0
F mm 20.0 20.0 20.0 19.1 20.0 30.0 44.0 40.0
G mm N/A N/A N/A ∅6.5(H7)↧6.2 ∅4.0↧7.6 N/A ∅8.0(H7) THRU ∅12.0(H7) THRU
H mm N/A N/A N/A N/A ∅4.0↧3.8 N/A ∅8.0 THRU ∅12.0 THRU
I mm N/A N/A N/A N/A  N/A N/A ∅3.0(H7)↧5.0 N/A 
J mm N/A N/A N/A  N/A  N/A  N/A  N/A  ∅4.0(H7)↧6.0
K mm N/A N/A N/A  N/A  N/A  N/A  ∅3.0(H7)↧5.0 N/A 
L mm N/A N/A N/A  N/A  N/A  N/A  N/A  ∅4.0(H7)↧5.0 
M mm N/A N/A N/A  N/A  N/A  N/A  32  40 
N mm N/A N/A N/A  N/A  N/A  N/A  32  34 
X mm M4↧2.7 M4↧5.2 M4↧6.2 M4↧6.2 M4↧7.6 M5↧10.0 M5↧10.0 M6↧7.9
Y mm M4↧2.7 M4↧3.7 M4↧3.7 M4↧4.0 M4↧3.8 M5↧4.5 M5↧10.0 M6↧9.0
ϴ DEGREE 20° -25° 20° 20° 30° 20° 20° -55°

Part Numbering System

PART NUMBERING SYSTEM
 

Coil Assembly

CVC Part Numbering

Force vs Stroke Plot

CVC Series Force vs Stroke Plot

 

Note: specifications are subject to change without prior notice


Video


Click to downloadin MP4 format (742KB)

Downloads

The CVC Series catalog is available for free at the DOWNLOADS section of this site.

The CVC Series 3D Drawings are available for free at the DOWNLOADS section of this site.

COMPANY

SERVICES

CONTACT

505 Yishun Industrial Park A
PBA Building
Singapore 768733

Tel +(65) 6576 6767
Fax +(65) 6576 6768

Sales / General Enquiries
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PRODUCTS

IRONLESS LINEAR MOTORS

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