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MXB-U Actuators

The MXB-U has an unguided carrier design for versatility in applications that already have guides built in.

The MXB is Tolomatic’s most advanced belt driven linear actuator series, with 3 different carrier guide options: Unguided (U), Solid Bearing (S), and Profiled Rail (P). The Unguided carrier style allows for movement in system that already have guide bearings designed in, and need to avoid binding from misalignment with the drive mechanism.

  • 6 Body Sizes
  • Universal mounting plate for easy load connections
  • Stroke lengths up to 414 in (10.5m)
  • Travel speeds up to 200 in/s (5 m/s)
  • Acceleration capabilities up to 1200 in/sec^2 (30.5 mm/sec^2)
  • Steel chorded polyurethane drive belt

Features & Ordering

Download the MXB-U Brochure for full details on features

MXB-U Brochure

MXB-U Features

MXB-U Ordering

Specifications

MXB-U Electric Rodless Actuator Specifications

Specifications Units MXB16U MXB25U MXB32U MXB40U MXB50U MXB63U
Maximum Stroke in (mm) 200 (5,080) 414 (10,516) 413 (10,490) 412 (10,465) 410 (10,414) 217 (5,512)
Maximum Force lbf (N) 38 (169) 151 (672) 209 (930) 250 (1,112) 325 (1,446) 418 (1,859)
Maximum Speed in/sec (mm/sec) 200 (5,080)

IMAGE-MXB-U Specifications and Breakaway Torque

MXB-U Detailed Specifications and Breakaway Torque - US Measurements

MXB-U, MXB-S, and MXB-P BREAKAWAY TORQUE
MXB SIZE Belt Width Belt Dead Length Pulley Pitch Dia. Stroke per Rev. Max. Stroke Single Carrier Aux. Carrier Opt. (MXB-P)
in in in in in lb-in lb-in
16 0.39 14.29 0.753 2.366 230 4.0 6.0
25 0.71 18.72 1.003 3.151 414 5.0 7.0
32 0.98 21.89 1.253 3.936 413 8.0 10.0
40 1.18 24.95 1.504 4.725 412 10.0 12.0
50 1.57 27.25 1.754 5.510 410 15.0 18.0
63 1.97 36.11 2.130 6.692 217 20.0 25.0

MXB-U Detailed Specifications and Breakaway Torque - Metric Measurements

MXB-U, MXB-S, and MXB-P BREAKAWAY TORQUE
MXB Size Belt Width Belt Dead Length Pulley Pitch Dia. Stroke per Rev. Max. Stroke Single Carrier Aux. Carrier Opt. (MXB-P)
mm mm mm mm m N-m N-m
16 10 363.0 19.1 60.1 5.84 0.452 0.678
25 18 475.5 25.5 80.0 10.5 0.565 0.791
32 25 556.0 31.8 100.0 10.5 0.904 1.130
40 30 633.7 38.2 120.0 10.5 1.130 1.356
50 40 692.2 44.6 140.0 10.4 1.695 2.034
63 50 917.2 54.1 170.0 5.51 2.260 2.825

MXB-U Weight, Inertia - US Measurements

MXB-U
Size
WEIGHT INERTIA
Plate Assembly Belt Tensioning Assembly Base Actuator Per in of Stroke Drive/Idle Pulley Assemblies Plate Assembly (Including Belt Tensioner Assembly) Per in of Stroke
lb lb lb lb/in lb-in2 lb-in2 lb-in2
16 0.11 0.10 1.59 0.084 0.0085 0.0297 0.0005
25 0.27 0.15 2.59 0.138 0.0259 0.1050 0.0017
32 0.48 0.30 4.17 0.237 0.1416 0.3043 0.0037
40 0.90 0.46 7.83 0.352 0.3719 0.7665 0.0065
50 1.03 0.72 9.93 0.472 0.7243 1.3480 0.0117
63 2.54 0.83 16.44 0.833 1.9512 3.8249 0.0216

MXB-U Weight, Inertia - Metric Measurements

MXB-U
Size
WEIGHT INERTIA
Plate Assembly Belt Tensioning Assembly Base Actuator Per cm of Stroke Drive/Idle Pulley Assemblies Plate Assembly (Including Belt Tensioner Assembly) Per cm of Stroke
kg kg kg kg/cm kg-cm2 kg-cm2 kg-cm2
16 0.05 0.05 0.72 0.0150 0.0250 0.0870 0.0006
25 0.12 0.07 1.17 0.0246 0.0759 0.3073 0.0020
32 0.22 0.13 1.89 0.0423 0.4143 0.8906 0.0043
40 0.41 0.21 3.55 0.0629 1.0884 2.2430 0.0075
50 0.47 0.33 4.50 0.0843 2.1196 3.9449 0.0135
63 1.15 0.38 7.46 0.1488 5.7101 11.1931 0.0249

MXB Additional Detailed Specifications

MAXIMUM VELOCITY MXB-U 5080 mm/sec 200 in/sec
MAXIMUM VELOCITY MXB-S 2,540 mm/sec 100 in/sec
MAXIMUM VELOCITY MXB-P 3,810 mm/sec 150 in/sec
MAXIMUM ACCELERATION 30.48 m/sec 2 1,200 in/sec 2
REPEATABILITY ± 0.051 mm ± 0.002 in
TEMPERATURE RANGE -12 to 54 °C 10 to 130 °F
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.

STRAIGHTNESS, FLATNESS 0.01702 L mm 0.00067 L in
Actuator mounted on a flat surface and fully restrained (see Mounting Plate Requirements, MXB catalog 8500-4000 page mxb_11)
L = Maximum distance between supports
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 variation, so good engineering practices such as measurement, mapping, etc. must be employed in applications with stringent straightness/flatness requirements.

Dimensions

MXB-U Rodless Belt Drive Actuator & Option Dimensions

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Success Stories

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Product Family: Electric
Product Used: MXB-U

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