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.