J
0YCE
E
LECTRIC
C
YLINDERS
Joyce/Dayton Electric Cylinders are designed for use in industrial environments where protection of the lifting screw mechanism is critical and low maintenance is desirable. Requiring only electric power, Joyce
® Electric Cylinders may also be used in place of hydraulic cylinders, eliminating the cost and potential for leaks associated with hydraulic systems. Electric Cylinders utilize the same drive housings offered on our rugged Acme (machine) Screw and Ball Screw Jacks. They are manufactured in five sizes from 2.5 to 20 ton static capacity. Electric Cylinders can achieve speeds up to 546 inches per minute and raise loads up to 100 inches. Complete dynamic speed/load ratings and maximum rise information can be viewed on our quick reference charts (pages 97-101). Both Acme Screw (ECA) and Ball Screw (ECB) models are designed to operate at the charted capacities under both tension and/or compression loading.Joyce offers three Electric Cylinder models; Standard, Motor Mount, and ComDrive. All three models are described in more detail on page 96. Ordering Information – Electric Cylinder orders must indicate model, tube end condition, base design, cylinder rise, left and right hand shaft options, and any additional options. Complete ordering information is located on pages 19 and 20. All Joyce Electric Cylinders incorporate the following features and benefits: ? Ground and hard-chrome plated inner cylinder tube resists harsh contaminants while providing smooth cylinder translation? Dual lip tube seals retain lubrication while preventing dirt and grime from entering the internal cavity and contaminating the lifting screw? Durable enamel coated exterior surfaces (epoxy coating available)? Rigid cylinder tube guide bearings provide resistance to buckling (external guides are required when side loads are present)? Heat treated alloy steel input shafts riding on tapered roller bearings provide proper worm-gear alignment for increased service life? Spring-loaded input shaft seals prevent the loss of lubrication ? Aluminum-bronze worm-gear rides on high quality tapered roller or ball thrust bearingsElectric Cylinder Operation: The input (worm) shaft rotates a worm-gear which in turn rotates the lifting screw. As the lifting screw rotates, it forces the lifting
nut (fixed to the cylinder tube) to translate, thus extending or retracting the cylinder tube. For proper operation, the load being lifted must be restrained from rotation. Joyce Electric Cylinders are conveniently offered with many of our popular accessory options. These options include female clevis/brackets, mechanical & electronic limit switches, encoders, potentiometers, handwheels, and mechanical counters. Common applications for Electric Cylinders include damper operators, door openers, platform lifting applications, work table adjusters, oven hood openers, security gate operators, and antenna
actuators. Contact Joyce/Dayton with your application and let our experienced Application Engineers guide you through the proper selection of your Electric Cylinder.Joyce Electric Cylinders are built to order from your design and rise specifications. Ordering Information — Order must indicate model number, tube end condition, base design, cylinder rise, shaft codes and any additional options. For complete ordering information see page 166 and 167.
1-800-523-5204 Visit our website now for 2D and Interactive 3D models of all our Jacks and Actuators. www.joycedayton.com
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