Seventh Axis Slide or Robot Transfer Unit comes with helical rack and pinions.

Press Release Summary:

Seventh Axis Slide or Robot Transfer Unit is suitable for drilling, fastening, composite layup, welding, trimming, routing, painting and coating applications. Product features cable management systems and structural steel columns. Seventh axis robotic is available in floor mounted, elevated or inverted configurations and is integrated with guard rails, power and communication cables. Unit comes with transfer rate of 1.5 m per second, heavy duty linear bearing and backlash gear reducer.

Original Press Release:

New LazerArc Division of Motion Index Drives Offers Custom Engineered Robot Transfer Units

LazerArc was established by Motion Index Drives in 2017 to separate the custom engineered solutions from standard product offerings for those customers looking for a wider selection of machinery to suit today's manufacturing automation needs, including robot transfer units.

In order to address the needs of robot integrators, LazerArc has begun manufacturing the 7th Axis Slide, or Robot Transfer Unit customized to fit your application.Due to the low cost and high flexibility of Robotic Arms, they continue to be a popular choice in manufacturing. Robots are ideal for repetitive assembly operations, such as drilling, fastening, composite layup, welding, trimming, routing, painting and coating. Generally, they are mounted in a fixed location consequently limiting their reach. An additional axis is often required to make the robot more versatile.

LazerArc can provide a heavy duty design to address this issue. It is equipped with high-precision helical rack & pinions that can handle the high dynamic loads and required accuracy. To extend the reach of the robotic arm, it is placed on a support carriage on a seventh axis slide and rack & pinions were chosen to drive the axis. By using rack & pinions in their modular base design, unlimited travel lengths could be achieved by mounting them end-to-end. Another advantage to seventh axis robotic slides is that more than one robotic arm can be placed on the same slide for additional productivity and flexibility.

LazerArc's line of Robot Transfer Units are manufactured in floor mounted, elevated or inverted configuration. We offer the highest precision guard rails, rack and pinnion system and closed loop motor control system so you can manufacture the best product possible. The Robot Transfer systems are capable of fitting into your automated robotic systems, whether it is a material handling job, paint, and assembling or welding application. All of the units can be adapted to your specific servomotor or robot brand.

LazerArc's RTU - 7th Axis system can be engineered to any length that the customer requires. Our design incorporates machined keyed ends allows for sections to be added or removed easily, when repurposing.

Standard Features:

  • Accuracy of +/- 0.003" /ft
  • Pre-Machined Carriage to Secure Robot
  • Oversized Linear Bearings
  • Slight Design Changes
  • Machined and Keyed Ends
  • Cable Management Systems
  • Structural Steel Columns


  • Power and Communication Cables
  • Bellow Guard for Linear Bearings
  • Leveling Plates
  • Higher Accuracy
  • Custom Robot Risers


  • Transfer times of 1.5 meters per second
  • Heavy duty linear bearings offer high tilting moments
  • Optional armoloy coating on gear rack for lube free operation
  • Low backlash Gear Reducer

Advantages for Design Engineers and Special Machine Builder:

  • Utilizes a direct drive gear reducer and gear rack, we achieve higher accuracy and better performance with less components.
  • The robust tubular steel construction "Made in USA"
  • Oversized rack and pinion system for greater safety factors

All of our LazerArc products are built with the highest precision materials and engineering expertise, customized to fit your specific applications. For more information on LazerArc's Robot Transfer Units visit:

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