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MSA-628 Actuator


  • Single Axis Belt Driven Actuator.
  • User defined Strokes.
  • Mounting flexibility in any orientation.
  • Extruded aluminum actuator body with T-slots for ease of mounting.
  • Easy to adjust belt tensioner.
  • One piece machined and stress proof shafted pulley.
  • Zero backlash belt to pulley design.
  • Corrosion resistant components.
  • Washdown Duty or Water- Resistant Options upon request.


  • Each Belt Driven Actuator can be supplied with the following items upon request, T-slot sensors, Gearboxes, or Motor mounting adaptors.
  • Cable Track Available upon request.
  • For Travel requirements over Standard values contact Macron Dynamics for assistance.


Motion Horizontal, Vertical
Max Speed - Horizontal[Vertical] - mm/sec 6230[3115]
Max Load - Horizontal[Vertical] - lbs 20[10]
Repeatability - mm +/- 0.025
Moment Load - in-lbs[Nm] 53[6]
Positional Accuracy - mm/meter +/- 0.4
Acceleration Max - Gs 5
Recommended Belt Running Load - lbf[N] 200[889]
Cart Guide Track roller with round rail
System Weight - kg (Travel in meters x 2.0) + 1.6
Motor Sizing Information
Weight of Cart - lbs[kgs] 1.2[0.54]
Weight of Belt - kgs based on travel selected ((Travel in meters x 2) + .50) x .04
Travel per Revolution - mm 105
Pulley Pitch Diameter - mm 33.42
Pulley Material / Width - mm steel / 16.3
Breakaway Torque - oz-in 20 to 14
Coefficient of Friction 0.1
Travels (25mm increment)
Standard Travels - min to max 150 to 5725

Configurate a MSA-628 Actuator

Enter your configuration options to submit a Request for a Quote or a CAD drawing:

Shaft Type

Drive Shaft Location

Normal Drive shaft diagram

Travels (in 25mm increments)

Please Give Me Options For:

Part Number As Configured


Gearbox: None
Motor Mount: None
T-Slot Sensor: None
Mounting Kit: None

User Guides

MQD-TD-23-6 Cart Adjustment Process


Gearbox Installation graphic
Gearbox Install


User Guide Maintenance



Single Axis Actuator Videos

Replacement Parts

Cart Assembly | CSA – 628

Fits actuators: MSA-628, MDC-628

  • Includes complete cart assembly with mounting hardware. Special adjustment tools if required, sold separately

Download Datasheet

Pulley Assembly Kit | PAS – ABS / PAI – ABS

Fits actuators: MSA-628, MDC-628, MSA-R15, MDC-R15, MSA-R5D

  • Includes pulley, bearings, housing and mounting hardware fully assembled
  • Drive and idler pulley have unique part number. See datasheet for proper part number configuration and selection. PAI prefix indicates idler, PAS prefix indicates drive

Download Datasheet

Wiper Replacement Kit | WRK – 628

Fits actuators: MSA-628, MDC-628

  • Includes felt wiper, springs, end cap and mounting hardware to retrofit one cart assembly.
  • Lubricating guide rails is critical to the life of an actuator. Replacing on a regular PM cycle is recommended.

Download Datasheet

Drive Belt Kit | DBK – BC – XX

Fits actuators: MSA-628, MSA-R15, MDS-628, MDS-R15. MAA-R15

  • Includes belt and tension assembly with hardware. Tension tool sold separately.
  • Dash XX requires completion based on actuator size or special conditions. See datasheet for instructions.

Download Datasheet


Item # 399-25, Tensioning Tool – 12mm & 25mm Belts

Item # 397, Torque Wrench 25-250 lbs-in

MKS-100 – Actuator Mounting Kit (Light Duty)