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