These compact and efficient solar tracking jacks are designed to precisely position loads at speeds up to 3.75 inches per minute.
|STB - Ball Screw Jacks|
|Part Number||Typical Dynamic Load Capacity*||Typical Staic Load Capacity*|
|STB-4.5||9,000 lb.||20,000 lb.|
|STB-11||22,000 lb.||40,000 lb.|
|STB-44||88,000 lb.||88,000 lb.|
* Actual load capacities may vary depending on desired life and travel speed requirements.
Motor Control Options
Joyce/Dayton offers motor controls ranging from simple Motor Starters to complex positioning systems and Custom controls. Every system that is powered by an electric motor requires a control system. At Joyce, we know that choosing the best option can sometimes be a challenge. That’s why our Engineers are available to help you through the process.
|Ball Screw Solar Tracking Jack (STB) Dimensions (in inches)|
|STB-4.5||12.750||5.500||15.5||1.0||1.75||0.75||1.250||2.50||4.9||2.06||0.625||0.188 Sq x 1.0 Lg||3.75||6.0||1.250||5/16-18||5.00||1.25||1.50|
|STB-11||12.750||5.750||19.5||1.5||2.75||1.25||1.500||3.00||5.1||2.06||0.625||0.188 Sq x 1.0 Lg||3.75||6.5||1.750||5/16-18||5.00||1.75||2.00|
|STB-44||20.000||9.500||27.5||2.5||4.50||1.78||2.375||4.50||8.0||3.13||1.000||0.250 Sq x 1.25 Lg||5.00||13.0||2.750||3/8-16||8.00||3.00||4.00
- Aluminum housing
- Alloy screw
- Customer to provide trunnion pins. They should be made of steel with hardness greater than 30 HRC, yield strength greater than 110 KSI, and supported within 1/16 inch of the actuator housing.