Q: Does it need batteries?
No, the arm runs entirely on water pressure and mechanical action, so no electricity or batteries are needed.
45K4224 - Hydraulic Robot Arm
Anyone who has watched an auto-factory robot at work knows how fascinating hydraulic machinery can be. This kit lets you build your own fully functional hydraulic robot arm capable of picking up and manipulating small objects – powered entirely by water pressure and mechanical action, with no electricity or batteries required.
Controlled by levers and a crank built into the base, the finished arm has six axes of motion: it bends at the wrist, elbow and shoulder, and rotates at the wrist and shoulder. The gripper can hold objects up to about 2" across and 50g (1 3/4 oz), with a vertical reach of over 16" and a horizontal reach of about 12". The kit contains 229 pieces, and clear visual instructions guide assembly.
A sturdy, genuinely functional toy that offers hours of entertainment along with a hands-on understanding of hydraulics, it makes an engaging gift for curious builders age 10 and up and is a great beginner's engineering kit for teens.
No, the arm runs entirely on water pressure and mechanical action, so no electricity or batteries are needed.
The gripper holds objects up to about 2" across and 50g (1 3/4 oz).
It has a vertical reach of over 16" and a horizontal reach of about 12".
All the fasteners are included. You supply water, a Phillips screwdriver and scissors or wire snips.
No, the plastic parts snap together and only a few screws are needed.
At 229 parts it is a moderate construction challenge recommended for ages 10 and up.
| Materials | Plastic |
| Dimensions | Over 16" vertical reach; about 12" horizontal reach |
| Capacity | Maximum 50g (1 3/4 oz) gripper load |
| Includes | Robot arm parts; fasteners; visual instructions |
| Compatibility | Holds objects up to about 2" across |
| Package Quantity | 1 kit |
| Warranty | Lee Valley Satisfaction Guarantee |
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Hydraulic Robot Arm
Anyone who has watched an auto-factory robot at work knows how fascinating hydraulic machinery can be. This kit lets you build your own fully functional hydraulic robot arm capable of picking up and manipulating small objects – powered entirely by water pressure and mechanical action, with no electricity or batteries required.
Controlled by levers and a crank built into the base, the finished arm has six axes of motion: it bends at the wrist, elbow and shoulder, and rotates at the wrist and shoulder. The gripper can hold objects up to about 2" across and 50g (1 3/4 oz), with a vertical reach of over 16" and a horizontal reach of about 12". The kit contains 229 pieces, and clear visual instructions guide assembly.
A sturdy, genuinely functional toy that offers hours of entertainment along with a hands-on understanding of hydraulics, it makes an engaging gift for curious builders age 10 and up and is a great beginner's engineering kit for teens.
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