Joyce Metric Machine Screw Jack

• Lifts and precisely positions loads from 10kN to 100 kN
• Works in upright or inverted position
• Operate at full capacity whether load is in tension or compression
• MWJ series jacks are self locking under full lifting capacity
• Heat treated alloy steel worm shafts, aluminum/bronze worm gears and tapered roller or ball bearings provide rugged reliability
• Translating screw and keyed designs available
• Can be fitted with protective boot

Joyce Ball Screw Jack

• Features ball nut with integral ball bearings that re-circulate along the surface of the ball screw
• The significantly reduced friction between the ball nut and screw results in greater efficiency, with up to 2/3 less input torque required to move the load than a similarly rated machine screw jack
• New additions to the line include a second model of the 10-ton unit, a 20-ton unit, a 30-ton unit and a 50-ton unit
• Translating screw and keyed designs available
• Can be fitted with protective boot

High Efficiency Bevel Ball (BB Series)

• Provides higher speeds and less heat generation than other mechanical actuators
• More precise positioning and repeatability than hydraulic cylinders
• Featuring spiral bevel gear driven ball screws
• Provide efficiencies up to 86%, high duty cycles, travel speeds to 48 FPM and static capacities up to 100 tons
• Carry a J-10 life cycle rating with fully predictable service life expectancy
• Translating screw and keyed designs available
• Can be fitted with protective boot

Joyce Bevel Gear Jacks

• Offer higher efficiency and greater speed than other mechanical screw jacks
• Bevel Gear S Series jacks provide the benefit of a self-locking screw (no special break is required to prevent the jack from lowering under load)
• Spiral Bevel Gears increase strength for higher capacities
• Bevel Gear jacks also act as a miter gear box, 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 are also available complete with reducer or direct drive in a ready-to-run package
• Translating screw and keyed designs available
• Can be fitted with protective boot

ComDrive

• A self-contained actuator package that combines a machine screw jack, motor and gear reducer into a single compact unit
• Can power an entire jacking system
• Simplifies your design (gear reducer and motor no longer need to be sized)
• Cheaper to install due to reduced component requirements
• Only mounting requirement is one plate for the jack body
• Translating screw and keyed designs available
• Can be fitted with protective boot

Joyce/Dayton Stainless Steel Machine Screw Jack/Actuators

• Specifically designed for positioning or lifting applications in corrosive or other potentially contaminated environments
• All exposed surfaces and components feature 316 or 17-4 stainless steel construction and bronze bushings
• Nitrile rubber seals protect all internal mechanisms
• Joyce/Dayton SWJ series provide full lifting capacity (unlike others on the market)
• Translating screw and keyed designs available
• Can be fitted with protective boot

Precision Machine Screw Jacks

• Works in upright or inverted position
• Operates at full capacity whether the load is in tension or compression
• WJ series single lead jacks are self locking under full lifting capacity
• DWJ double lead series jacks offer increased travel speed
• Heat treated alloy steel worm shafts, aluminum/bronze worm gears and tapered roller or ball bearings provide rugged reliability
• Double extended worm shafts are standard
• Single extended worm shafts are available with right to left hand extension or additional length
• Translating screw and keyed designs available
• Can be fitted with protective boot