EC3 Series

The EC3 Series provides robust electric cylinders for moderate to heavy thrust loads. Ball or lead screw types yield quiet operation, low backlash and high accuracy, with a choice of motor-to-screw reduction types. Exceptionally durable bearing and drive housings are available with optional environmental features to resist moisture and contaminants. The special design minimizes the need for routine maintenance.

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Companion Products

  • AKD

    We designed our next-generation AKD® Series with the versatility, communications, power an... Learn More >>

  • P7000 Series
    P7000 Series

    Kollmorgen's P7000 stepper drives provide you servo-like system performance with the cost ... Learn More >>

  • AKM Series
    AKM Series

    Our best-in-class, high-performance servomotors offer a wide range of mounting, connectivi... Learn More >>


Motors available for use with the EC3 Series include:

  • Kollmorgen T32T/V Series hybrid stepper motor (P7000 drive recommended)
  • Kollmorgen AKM23C,23D,42E and 42G Series AKM™ brushless servo motors
  • NEMA 23 custom motor mount



  • Max stroke length: 1,000 mm (39.4 in)
  • Max thrust: 7,200 N (1,620 lbf)
  • Ball and lead screw driven with 4, 5, 10, 16 mm leads
  • Stepper, brushless servo and custom motor options
  • Bearing/drive housing: 6063-T6 aluminum, anodized
  • Mounting plates: 6061-T6 aluminum, cast aluminum plate, anodized
  • Thrust bearings: angular contact, high thrust ball bearings
  • Lead screw: carbon steel alloy, nut: bronze
  • Helical gearing: alloy steel, case-hardened
  • Guide cylinder: 6063-T6 aluminum, hard-anodized
  • Thrust tube: 300 series stainless steel, 1/4 hard and ground
  • Ballscrew and nut: heat-treated carbon steel alloy
  • Belt/pulley: AT-5, polyurethane with steel tensile cords


  • Standard or custom lengths to 1 mm
  • Motor or screw brakes
  • Threaded, spherical or clevis rod ends
  • Environmental protective boot
  • Timing belt, helical gear and inline direct transmission
  • Flange, clevis, side and trunnion cylinder mounting types
  • Magnetic home and limit sensors
  • Linear potentiometer output




Lead Screw Version

Ball Screw Version

Max. Stroke Length, mm (in)

1000 (39.37)

1000 (39.37)

Screw Lead, mm



Screw Diameter, mm



Unit Backlash, mm (in)

0.40 (0.016)

0.25 (0.010)

Dimensional Standard

Metric ISO6431 Std.

Metric ISO6431 Std.

Bore Size, mm



Motor Mount

parallel or inline

parallel or inline


Travel life standard: 25.4 km (1,000,000 in)

Max. Thrust Force, N (lbf)

7200 (1620)

7200 (1620)

Max. Velocity, m/s (in/s)

0.20 (8.0)

1.28 (50)

Max. Rated Duty Cycle



Std. Operating Temp Range, °C (°F)

-30 to +70 (-22 to +158)

-30 to +70 (-22 to +158)


IP54 Std. IP65 Opt.

IP54 Std. IP65 Opt.



EC Series User Manual_en-US_rev1EC Series User Manual_en-US_rev16.7 MB8/14/2013Email

3D Models and Outline/Dimension Drawings

EC3EC3 Email

3D Interactive Models

EC3 Series 3D Interactive ModelsEC3 Series 3D Interactive Models75.8 KB8/14/2013Email
US Production