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B3W Actuators
The B3W features a robust integrated and enclosed bearing design for the toughest environments.
Tolomatic’s B3W is a linear belt driven rodless actuator series that has a enclosed carrier support bearing design that provides long life and high load capability. The bearings and belt are protected by a stainless steel dust band that provides a IP44 rating against dust and debris. The B3W is the ideal choice for tough environments, especially those with high amounts of particulate and require long operating life.
- 3 body sizes
- Maximum Load carrying capacity up to 8,032 lbf (3,642 kg)
- Stroke lengths up to 574 in (15.6m)
- Travel speeds up to 200 in/s (5 m/s)
- IP44 rating against dust and debris
- Auxiliary carrier and dual wraparound carrier options available for increased load capability
Features & Ordering
Download the B3W Brochure for full details on features
B3W Features
B3W Ordering
Specifications
| Specifications | Units | B3W10 | B3W15 | B3W20 |
|---|---|---|---|---|
| Maximum Stroke | in (mm) | 470 (11,938) | 416 (10,566) | 320 (8,128) |
| Maximum Force | lbf (N) | 150 (667) | 250 (1,112) | 325 (1,446) |
| Maximum Load | lbs (kg) | 591 (286) | 1,454 (660) | 2,008 (911) |
| Maximum Speed | in/sec (mm/sec) | 157 (3,988) | 200 (5,080) | 200 (5,080) |
B3W Specifications in US & Metric
B3W Specifications
| B3W10 | B3W15 | B3W20 | |||
|---|---|---|---|---|---|
| Max. Stroke | in | 470 | 416 | 320 | |
| Max. Velocity | in/sec | 200 | 200 | 200 | |
| Max. Acceleration | in/sec2 | 1,200 | 1,200 | 1,200 | |
| Max. Input Torque | lb-in | 75.2 | 188.0 | 285.0 | |
| Breakaway Torque | Standard (single) Carrier | lb-in | 9.38 | 12.5 | 28.13 |
| Dual 180° or Aux. Carrier | lb-in | 11.88 | 15 | 31.25 | |
| Dual 180 & Aux Carrier | lb-in | 16.88 | 25 | 47.5 | |
| Pulley Pitch Dia. | in | 1.003 | 1.504 | 1.754 | |
| Stroke per Rev. | in/rev | 3.151 | 4.725 | 5.51 | |
| Repeatability | in | +/- 0.002 | +/- 0.002 | +/- 0.002 | |
| Straightness & Flatness1 | in | 0.00067 x L* | 0.00067 x L* | 0.00067 x L* | |
| Temp. Range2 | °F | 40 – 130 | 40 – 130 | 40 – 130 | |
| IP Rating3 | IP | 44 | 44 | 44 | |
| Inertia (zero stroke) | lb-in2 | 0.2846 | 1.3917 | 2.6607 | |
| Inertia (per unit of stroke) | lb-in2/in | 0.0016 | 0.0017 | 0.0114 | |
| Inertia of pulley | lb-in2 | 0.0093 | 0.0748 | 0.1441 | |
| Inertia of carrier | lb-in2 | 0.1041 | 0.5089 | 0.9728 | |
| Weight of pulley | lb | 0.015 | 0.054 | 0.1036 | |
| Weight of carrier | lb | 0.85 | 1.56 | 2.14 | |
| Weight (zero stroke) | lb | 7.54 | 25.12 | 35.4 | |
| Weight (per unit of stroke) | lb/in | 0.389 | 0.395 | 0.716 | |
| Weight of carrier | lb | 2.40 | 6.66 | 10.72 | |
| Weight (zero stroke) | lb | 9.62 | 30.22 | 43.97 | |
| Weight (per unit of stroke) | lb/in | 0.50 | 0.76 | 1.24 |
| B3W10 | B3W15 | B3W20 | |||
|---|---|---|---|---|---|
| Max. Stroke | mm | 11,938 | 10,566 | 8,128 | |
| Max. Velocity | m/sec | 5.08 | 5.08 | 5.08 | |
| Max. Acceleration | m/sec2 | 30.48 | 30.48 | 30.48 | |
| Max. Input Torque | N-m | 8.5 | 21.2 | 32.2 | |
| Breakaway Torque | Standard (single) Carrier | N-m | 1.06 | 1.41 | 3.18 |
| Dual 180° or Aux. Carrier | N-m | 1.34 | 1.69 | 3.53 | |
| Dual 180 & Aux Carrier | N-m | 1.91 | 2.82 | 5.37 | |
| Pulley Pitch Dia. | mm | 25.48 | 38.2 | 44.55 | |
| Stroke per Rev. | mm/rev | 80.04 | 120.02 | 139.95 | |
| Repeatability | mm | +/- 0.05 | +/- 0.05 | +/- 0.05 | |
| Straightness & Flatness1 | mm | 0.017 x L* | 0.017 x L* | 0.017 x L* | |
| Temp. Range2 | °C | 4 – 54 | 4 – 54 | 4 – 54 | |
| IP Rating3 | IP | 44 | 44 | 44 | |
| Inertia (zero stroke) | kg-cm2 | 0.833 | 4.073 | 7.786 | |
| Inertia (per unit of stroke) | kg-cm2/mm | 0.00018 | 0.0002 | 0.00131 | |
| Inertia of pulley | kg-cm2 | 0.027 | 0.219 | 0.422 | |
| Inertia of carrier | kg-cm2 | 0.305 | 1.489 | 2.847 | |
| Weight of pulley | kg | 0.0068 | 0.0244 | 0.047 | |
| Weight of carrier | kg | 0.39 | 0.71 | 0.97 | |
| Weight (zero stroke) | kg | 3.42 | 11.39 | 16.06 | |
| Weight (per unit of stroke) | kg/mm | 0.0069 | 0.0071 | 0.0128 | |
| Weight of carrier | kg | 1.09 | 3.02 | 4.86 | |
| Weight (zero stroke) | kg | 4.36 | 13.71 | 19.94 | |
| Weight (per unit of stroke) | g/mm | 8.93 | 13.57 | 22.14 |
1 The listed values relating to straightness/flatness are intended for reference purposes only, and not as an engineering standard of absolute tolerance for a given actuator. Appropriate installation is the single most important factor in reducing such deviation, so good engineering practices such as measurement, mapping, etc. must be employed in applications with stringent straightness/flatness requirements.
2 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 the factory.
3 Protected against ingress of solid particles greater than 1 mm (.039 in) and splashing water.
*”L” is maximum distance between supports – See Support Recommendations graph pg B3_9.
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.
NOTE: Zero stroke inertia and weight are for an assembled actuator (including carrier,
pulley and belt material) that has zero stroke length. To calculate system inertia use the formula below:
(For weight calculation substitute inertia with weight in the above formula)
Dimensions
B3W10 Actuator & Options Dimensions
B3W15 Actuator & Options Dimensions
B3W20 Actuator & Options Dimensions
B3W10 Dual 180º Option Dimensions
B3W15 Dual 180º Option Dimensions
B3W20 Dual 180º Option Dimensions
Get CAD
Manuals & Part Sheets
Additional Resources
Information Center:
Application Checklists
Catalogs & Brochures
- Corporate Overview-Linear Motion Solutions Brochure (English)
- SOLUCIONES DE CONTROL DE MOVIMIENTO (Spanish, Corporate Overview-Motion Control Solutions Brochure)
- Unternehmensübersicht (German, Corporate Overview brochure)
- Brochure sur l'entreprise Tolomatic (French, Corporate Overview-Linear Motion Solutions Brochure)
- B3S/B3W Electric Rodless Actuators Catalog
- Aplicaciounes de la Ind. Automotriz (Auto Appl SP)
- Gantry & Multi-Axis Solutions Brochure
- Soluciones Gantry y Multieje (^ES Gantry brochure)
- Medical and Life Sciences brochure
- OEM Actuator Solutions Brochure
Certifications
Guides
Tech Bulletins
Terms & Conditions
White Papers
- Electric actuators vs. pneumatic cylinders: A comparison based on total cost of ownership
- Select the right linear actuator: Making sense of manufacturer specifications
- Specifying electric rodless actuators: Ten tips for maximizing actuator life and system performance
- Rules of actuator and guide alignment in linear motion systems
- IP ratings and the manufacturing environment: How to apply linear actuators for quality, safety and long service life.
- Minimizing electrical noise in actuator drive systems for maximum reliability and performance
- Screw-driven vs. belt-driven rodless actuators: How to select drive trains for reliability, efficiency and long service life
- Introduction to accuracy and repeatability in linear motion systems
- Elektrische Stangenantriebe vs. Hydraulikzylinder: Ein Vergleich der Vor- und Nachteile beider Technologien weißes Papier (Electric vs Hydraulic WP, German)
- Designing Gantry and Multi-Axis Automation Systems
Success Stories
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Challenge: Create a new generation mask-making machine based on the automated workcell concept to improve efficiency, quality and throughput.
Product Family: Electric
Product Used: B3W Rodless Actuators & GSA Guided Rod Actuators
Application Description
Animation of props activated as part of an amusement ride in a theme park
Application Description:
Convert the conveyor packer, located at the end of the conveyor, from pneumatic cylinders to electric actuators. Motions required include: several high-speed push operations, a centering operation, a tipping operation, and a container lift operation.
Application Description
Position a printer head utilizing a dual-axis gantry system. Used to create a grid of a thin membrane for water filtration