Stainless Steel Screw Jacks
About Stainless Screw Jacks
Joyce stainless steel screw jacks are specifically designed for positioning and lifting applications that are located in wet, corrosive and harsh environments. Metallurgical properties of stainless steel allow it to remain ductile even at very low temperatures. These mechanical jacks are available in 2 ton through 25 ton capacities. Upright or inverted jacks operate at full capacity in tension or compression.
Bevel Ball Jacks
About Bevel Ball Jacks
Joyce Bevel Ball Actuators (BB), available in 7.5-ton to 100-ton static capacities, are designed for near-continuous duty operation. These are Joyce’s fastest jacks, able to attain travel speeds of 48.6 feet per minute. Available in Translating and KFTN designs, bevel ball actuators act as miter boxes, making them an ideal choice for multi-jack systems. As many as three output shafts may be specified for mounting motors, limit switches, readout devices and other accessories.
Bevel Gear Jacks
About Bevel Gear Jacks
Electric Cylinders and Actuators
About Electric Cylinders and Actuators
Joyce Electric Cylinder Actuators lift and precisely position up to 20 tons, achieve travel speeds up to 546 inches per minute, and raise loads up to 100 inches. Requiring only electric power, Joyce Electric Actuators are well suited for industrial environments where protection of the lifting screw mechanism and dependable operation are critical.
Ball Screw ComDRIVEs
About Ball Screw ComDRIVEs
Joyce Ball Screw ComDRIVEs combine a ball screw jack, motor and gear reducer into a single compact unit. Motorized ComDRIVEs are available in 2-ton through 30-ton capacities. Available in Translating, KFTN, and double clevis designs, they provide travel speeds up to 55.5 inches per minute. Ball screw ComDRIVES require up to two-thirds less input torque to move the load than a similarly sized machine screw jack ComDrive. They require a brake motor or external locking device to hold position.
Ball Screw Jacks
About Ball Screw Jacks
Joyce worm gear ball screw jacks lift and precisely position loads up to 50-tons. Upright or inverted jacks operate at full capacity in tension or compression. Select from standard lead (WB, WBL) and high lead (HWB, HWBL) models to meet your travel speed and ball nut life requirements. These ball screw jacks require up to two-thirds less input torque to move the load than similarly rated machine screw jacks. They require a brake motor or external locking device to hold position.
Machine Screw ComDRIVEs
About Machine Screw ComDRIVEs
Joyce Machine Screw ComDRIVEs combine a machine screw jack, motor and gear reducer into a single compact unit. Motorized ComDRIVEs are available in 2-ton through 30-ton capacities with travel speeds up to 35.1 inches per minute. ComDRIVEs with single lead screws (CD) are self-locking; those with double lead screws (DCD) may require a brake to hold position.
250 lbs. Machine Screw Jacks
WJ250
Joyce WJ250 miniature wormgear machine screw jacks with 5:1 gear set ratios lift and precisely position up to 250 pounds. Upright or inverted, these self-locking jacks operate at full capacity in tension or compression and are available in Translating and KFTN designs.
Machine Screw Jacks
About Machine Screw Jacks
Joyce worm gear machine screw jacks lift and precisely position loads (250 pounds to 250 tons). Upright or inverted jacks operate at full capacity in tension or compression. WJ and RWJ, single lead jacks are self-locking. DWJ and DRWJ, double lead jacks offer increased travel speed and require a brake or external locking device to hold position.