ML Miniature Actuator
Out-lifting and Outpacing Other Miniature actuators

PBC Linear’s newly introduced ML miniature actuator has been shown to provide superior linear motion over competing actuators in its class. But how? It’s design. With the systems integrated screw nut composed of PTFE impregnated polymer and six bearing plane surfaces per side, the ML nearly doubles the potential load capacity for any miniature actuator design.

   
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ML Miniature Actuator

The distinctive outer profile of the anodized aluminum housing makes use of dovetail slots on all sides making installation quick and easy, allowing this actuator to be mounted more commonly from its underside or uniquely from its side. This feature increases the users options for mounting, highlighting its flexibility while being ideal for mounting orthogonally in gantry style applications. The dovetail slot design also helps to eliminate the potential for loose mounting by inducing tension when tightening it down with its wedge style clamping (being superior to the conventional square T-slot toe clamp), thereby holding its grip through strenuous forces and vibrations over long cycling. The ML boasts precision machined surfaces on all sides that provide for flush mounting and facilitate clean, qualified linear motion.

Linear motion is provided through the use of lead screws. The user can choose from a wide selection of screw leads (from 0.039”, 0.125”, 0.4”, 1.0” to 1.5”) to offer the optimum velocities needed for the application. The diameter of our lead screws are of the largest available in the industry for actuators of this size, which help to overcome the detriments of the phenomenon known as ‘critical speed’. The lead screws are Teflon coated to increase life while lowering friction and drag on the motor.

A wide range of motor sizes are available in NEMA 11, 14, and 17 along with metric sizes. Our actuators incorporate two independent thrust bearings which help to guarantee long life and reliability by keeping the thrust forces of the load out of the motor.

To help keep the system compact, the slider (carriage) has an integrated screw nut. Being composed of PTFE impregnated polymer and having six plane bearing surfaces per side, our slider offers one of the highest load capacities for an actuator of this design type. The load capacity exceeds our competitions even when their system uses an external linear support rail. The geometry for the slider top surface is offered with a standard flat top or dovetail mount which aids in mounting alignment and holds the part in position during assembly. Threaded brass inserts ensure a secure and tight mount to its top surface. The system is available either with an anti-backlash nut having thrust capacity of 20 lbf. or with a standard nut having thrust capacity up to 60 lbf.

Options:
A seal strip can be added which facilitates its use in environments of high contamination and in medical applications, by keeping dirt and grime out of the system while also keeping particulates from exiting the unit. For systems requiring higher moment capacity, a single or double external linear guide system can be added.


Mini Actuator video


 
 
 
 

ML Series Features

Hard Coat Anodized Aluminum Housing

  • Precision machined profile – qualified mounting surfaces on all four sides and internal slide profile using SIMO™
  • Corrosion resistant

Polymer Slider (carriage)

  • Standard flat top or dovetail design offered
  • PTFE impregnated polymer for low stick-slip
  • High load capability – achieved by utilizing 6 angular plane surfaces per side
  • Threaded brass inserts for strength anchor the mounting screws

Dovetail slots for mounting

  • Integrated into polymer slider - aligns and strengthen the joint of actuator
  • Increases accuracy of part positioning during assembly
  • Precise alignment – improves mounting speed of system

Lead Screw Driven

  • Teflon coated for low friction and long life
  • High accuracy and repeatability
  • Multiple size

Linear Guide Supports

  • Single or dual guide support option
  • Allows for increased moment capacity at faster speeds
  • Provides stability and rigidity

Accessories & Additional Options:

  • Stepper motor & servo motor (NEMA and metric sizes)
  • Dust seal strip (requires additional bracket)
  • Servo or Stepper motor (High torque available)
  • Controllers
  • Motor mounts & couplings
  • Parallel motor mount, pulleys & belt
  • Straight gear reducer
  • Sensors & mounting
  • Cable carrier
  • Mounting brackets (for surface mounting, end mounting, carriage to carriage mounting, side to side mounting, gantry configurations)

Target Market

  • Life Science applications
  • Semi-Conductor equipment
  • Pharmaceutical & bio-tech applications
  • Medical industry
 
 
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Design World :: Leadership In Engineering 2009