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T-Bot® Hydraulic Arm

SKU: W91302
A Pitsco Exclusive


The T-Bot® is a great project for illustrating hydraulic power and mechanics. See how syringes, tubes, and water work together to power the parts of this robotic arm. Each control moves one of the T-Bot’s axes. The four controls can be used one at a time or all at once by a team of students – they can try basic maneuvers or moving objects as a team-building exercise! This improved model is extremely durable and supports reassembly and reuse multiple times over with its acrylic plastic parts and screws. This design also allows for more versatility in the activities covered. Students can move pivot pieces and syringes around to change power and leverage of their T-Bot.

The T-Bot can be used for a range of ages and educational concepts – from showing third graders how to work together to helping college students explore load and effort forces.

Looking for standards-based activities to accompany these materials? The T-Bot Teacher’s Guide is available for print here, or you can download a digital copy for free here.

Looking for fun activities to accompany these materials? Download the T-Bot Elementary STEM Activity Guide for free here.

Order 30 kits to build a class pack!


Type: Project Kits Grades: 3-12


What You'll Get

  • T-Bot plastic parts kit
  • 8 syringes (6 cc)
  • T-Bot base
  • 12 stand-off posts
  • Vinyl tubing (8')
  • 14 grommets
  • 44 pan head machine screws
  • 6 nylon insert nuts
  • 17 hex nuts
  • 2 steel flat washers
  • 6 pan head screws (#4 x 1/4" L)
  • 6 nylon flat washers
  • 2 nylon cable zip ties (6" each)
  • Stamped open-end wrench (5/16" opening)
  • Phillips-head screwdriver (No. 1 drive size)
  • Rubber band
  • T-Bot Builder’s Guide


Learning Values

  • Axes and levers
  • Force and motion
  • Newton’s laws
  • Hydraulics
  • Systems
  • Construction techniques
  • Load force and effort force
  • Simple machines
  • Teamwork
  • Logic
  • Graphing data
  • Measurements


  • Material: Acrylic plastic
  • Tools and Materials Required: Wrench and Phillips-head screwdriver, included