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BCS Linear Actuators

The BCS is a rodless screw drive actuator with light to moderate load capability.

The BCS is Tolomatic’s first electric rodless actuator. Built on the design of the succesful BC2 pnuematic series, the BCS features a simple carrier design guided by solid Delrin supports. These bearings provide medium load support and are less susceptible to particulate in the environment like exposed ball bearing systems do.

  • 3 Body Sizes
  • Maximum Load carrying capacity up to 600 lbf (272 kg)
  • Stroke lengths up to 120 in (3.4m)
  • Travel speeds up to 60 in/s (1.5 m/s)
  • Acme and Ball Screw drive options
  • Auxiliary carrier option for increased load and moment support
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Features & Ordering

Download the BCS Brochure for full details on features

BCS Brochure

BCS Features

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BCS Ordering

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Specifications

BCS Screw Specifications

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BCS Detailed Specifications - US Measurements

BCS Size Max Stroke Screw Type Screw Lead Max Thrust Screw Dynamic Load Rating Lead Accuracy Backlash Screw Diameter Base Actuator Inertia Base Actuator Inertia Inertia Per in of Stroke Maximum Dynamic Friction Torque
LMI RP
in in/rev lbf lbf in/ft in in lb-in2 lb-in2 lb-in2 lb-in
10 85.0 SN01 1.000 170 N/A 0.0060 0.007 0.500 0.032 0.035 0.0017 1.9
120.0 SN02 0.500 170 N/A 0.0050 0.007 0.500 0.019 0.022 0.0017 1.6
120.0 SNA02 0.500 170 N/A 0.0050 0.003 0.500 0.019 0.022 0.0017 1.6
120.0 SN05 0.200 170 N/A 0.0060 0.007 0.500 0.015 0.018 0.0017 1.1
61.0 BN08 0.125 151 300 0.0040 0.015 0.375 0.005 0.006 0.0005 1.0
61.0 BNL08 0.125 151 300 0.0040 0.002 0.375 0.005 0.006 0.0005 1.0
15 120.0 SN01 1.000 300 N/A 0.0050 0.007 0.750 0.139 0.154 0.0087 2.2
120.0 SN02 0.500 200 N/A 0.0050 0.007 0.625 0.056 0.063 0.0042 1.6
120.0 SNA02 0.500 200 N/A 0.0050 0.003 0.625 0.056 0.063 0.0042 1.6
59.0 BN02 0.500 855 1,071 0.0030 0.015 0.500 0.030 0.033 0.0017 1.4
59.0 BNL02 0.500 855 1,071 0.0030 0.002 0.500 0.030 0.033 0.0017 1.4
120.0 BN05 0.200 830 1,411 0.0030 0.015 0.625 0.046 0.052 0.0042 1.2
120.0 BNL05 0.200 830 1,411 0.0030 0.002 0.625 0.046 0.052 0.0042 1.2
59.0 BNM05 0.197 1,577 2,697 0.0019 0.002 0.630 0.047 0.053 0.0043 1.4
20 120.0 BN02 0.500 2,713 3,400 0.0040 0.015 0.750 0.124 0.137 0.0087 1.8
120.0 BNL02 0.500 2,713 3,400 0.0040 0.002 0.750 0.124 0.137 0.0087 1.8
120.0 BN05 0.200 955 1,624 0.0030 0.015 0.750 0.109 0.122 0.0087 1.6
120.0 BNL05 0.200 955 1,624 0.0030 0.002 0.750 0.109 0.122 0.0087 1.6
120.0 BNM05 0.197 1,801 3,080 0.0019 0.002 0.787 0.114 0.128 0.0096 2.2

Contact Tolomatic for higher accuracy and lower backlash options.
* For Acme screws, maximum thrust is the maximum continuous dynamic thrust subject to Thrust x Velocity limitation.
For ball screws, maximum thrust reflects 90% reliability for 1 million linear inches of travel.

BCS Detailed Specifications - Metric Measurements

BCS Size Max Stroke Screw Type Screw Lead Max Thrust Screw Dynamic Load Rating Lead Accuracy Backlash Screw Diameter Base Actuator Inertia Base Actuator Inertia Inertia Per in of Stroke Maximum Dynamic Friction Torque
LMI RP
mm mm/rev N N mm/300mm mm mm kg-cm2 kg-cm2 kg-cm2 N-m
10 2159.0 SN01 25.40 756 N/A 0.15 0.18 12.70 0.094 0.102 0.0002 0.21
3048.0 SN02 12.70 756 N/A 0.13 0.18 12.70 0.056 0.064 0.0002 0.18
3048.0 SNA02 12.70 756 N/A 0.13 0.08 12.70 0.056 0.064 0.0002 0.18
3048.0 SN05 5.08 756 N/A 0.15 0.18 12.70 0.044 0.053 0.0002 0.12
1549.4 BN08 3.18 671 1,334 0.10 0.38 9.53 0.015 0.018 0.0001 0.11
1549.4 BNL08 3.18 671 1,334 0.10 0.05 9.53 0.015 0.018 0.0001 0.11
15 3048.0 SN01 25.40 1,334 N/A 0.13 0.18 19.05 0.407 0.451 0.0010 0.25
3048.0 SN02 12.70 890 N/A 0.13 0.18 15.88 0.164 0.184 0.0005 0.18
3048.0 SNA02 12.70 890 N/A 0.13 0.08 15.88 0.164 0.184 0.0005 0.18
1498.6 BN02 12.70 3,801 4,764 0.08 0.38 12.70 0.088 0.097 0.0002 0.16
1498.6 BNL02 12.70 3,801 4,764 0.08 0.05 12.70 0.088 0.097 0.0002 0.16
3048.0 BN05 5.08 3,690 6,276 0.08 0.38 15.88 0.135 0.152 0.0005 0.14
3048.0 BNL05 5.08 3,690 6,276 0.08 0.05 15.88 0.135 0.152 0.0005 0.14
1498.6 BNM05 5.00 7,016 11,997 0.05 0.05 16.00 0.138 0.155 0.0005 0.16
20 3048.0 BN02 12.70 12,068 15,124 0.10 0.38 19.05 0.363 0.401 0.0010 0.20
3048.0 BNL02 12.70 12,068 15,124 0.10 0.05 19.05 0.363 0.401 0.0010 0.20
3048.0 BN05 5.08 4,247 7,224 0.08 0.38 19.05 0.319 0.357 0.0010 0.18
3048.0 BNL05 5.08 4,247 7,224 0.08 0.05 19.05 0.319 0.357 0.0010 0.18
3048.0 BNM05 5.00 8,012 13,700 0.05 0.06 20.00 0.334 0.375 0.0011 0.25

Contact Tolomatic for higher accuracy and lower backlash options.
* For Acme screws, maximum thrust is the maximum continuous dynamic thrust subject to Thrust x Velocity limitation.
For ball screws, maximum thrust reflects 90% reliability for 25 million linear millimeters of travel.

BCS Weight, Temperature and IP Rating- US Measurements

Actuator Series Carrier Weight (lb) Base Weight (lb) (Including Carrier) Weight per/in Of Stroke (lb) Temperature Range (F°) IP Rating**
BCS10 0.69 2.91 0.176 40 – 130 44
BCS15 1.94 6.61 0.392
BCS20 2.81 14.59 0.666

* Heat generated by the motor and drive should be taken into consideration as well as linear velocity and work cycle time. For applications that require operation outside of the recommended temperature range, contact Tolomatic.
** Protected against ingress of solid particles greater than 1mm (.039 in) and splashing water
LARGE FRAME MOTORS AND SMALLER SIZE ACTUATORS: Cantilevered motors need to be supported, if subjected to continuous rapid reversing duty and/or under dynamic conditions.

BCS Weight, Temperature and IP Rating- Metric Measurements

Actuator Series Carrier Weight (kg) Base Weight (kg) (Including Carrier) Weight per/in Of Stroke (g) Temperature Range (C°) IP Rating**
BCS10 0.31 1.32 3.1 4 – 54 44
BCS15 0.88 2.90 7.0
BCS20 1.27 6.62 11.9

* Heat generated by the motor and drive should be taken into consideration as well as linear velocity and work cycle time. For applications that require operation outside of the recommended temperature range, contact Tolomatic.
** Protected against ingress of solid particles greater than 1mm (.039 in) and splashing water
LARGE FRAME MOTORS AND SMALLER SIZE ACTUATORS: Cantilevered motors need to be supported, if subjected to continuous rapid reversing duty and/or under dynamic conditions.

Maximum Bending Moments and Loads - US Measurements

Standard Carrier BCS10 BCS15 BCS20
Mx Moment (Roll) lb-in 55 275 300
My Moment (Pitch) lb-in 100 500 1,100
Mz Moment (Yaw) lb-in 30 200 325
Fz Moment (Lateral) lb 60 180 300

Please see BCS Carrier Bracket Bolt Adjustment in BCS catalog 3600-4181

Auxiliary Carrier: Increases rigidity, load-carrying capacity and moments BCS10 BCS15 BCS20
Mx Moment (Roll) *lb-in 110 550 600
My Moment (Pitch) *lb-in 287 1,453 2,430
Mz Moment (Yaw) *lb-in 287 1,453 2,430
Fz Moment (Lateral) lb 120 360 600
Minimum Dimension ‘D’ in 5.10 6.50 8.10

*Loads shown in table are at minimum “D” dimension, for ratings with longer “D” dimension see graph in BCS catalog 3600-4181
The above ratings are the maximum values for shock-free, vibration-free operation in a typical industrial environment, which must not be exceeded even in dynamic operation. Contact Tolomatic for assistance in selecting the most appropriate actuator for your application.
Breakaway torque will increase when using the Auxiliary carrier option. When ordering, determine your working stroke and enter this value into the configuration string. Overall actuator length will automatically be calculated.
Please see BCS Carrier Bracket Bolt Adjustment in BCS catalog 3600-4181

Maximum Bending Moments and Loads - Metric Measurements

Standard Carrier BCS10 BCS15 BCS20
Mx Moment (Roll) N-m 6.2 31.1 33.9
My Moment (Pitch) N-m 11.3 56.5 124.3
Mz Moment (Yaw) N-m 3.4 22.6 36.7
Fz Moment (Lateral) N 267 801 1,335

Please see BCS Carrier Bracket Bolt Adjustment in BCS catalog 3600-4181

Auxiliary Carrier: Increases rigidity, load-carrying capacity and moments BCS10 BCS15 BCS20
Mx Moment (Roll) *N-m 12.4 62.1 67.8
My Moment (Pitch) *N-m 32.4 164.1 274.6
Mz Moment (Yaw) *N-m 32.4 164.1 274.6
Fz Moment (Lateral) N 534 1,602 2,670
Minimum Dimension ‘D’ mm 129.5 165.0 206.0

*Loads shown in table are at minimum “D” dimension, for ratings with longer “D” dimension see graph in BCS catalog 3600-4181
The above ratings are the maximum values for shock-free, vibration-free operation in a typical industrial environment, which must not be exceeded even in dynamic operation. Contact Tolomatic for assistance in selecting the most appropriate actuator for your application.
Breakaway torque will increase when using the Auxiliary carrier option. When ordering, determine your working stroke and enter this value into the configuration string. Overall actuator length will automatically be calculated.
Please see BCS Carrier Bracket Bolt Adjustment in BCS catalog 3600-4181

Dimensions

BCS10 Actuator & Options

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BCS15 Actuator & Options

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BCS20 Actuator & Options

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