NEFF MH/JH-series
Screw jack

• Lifting screw jack, axial or rotating screw
• Up to 250kN. Ingoing rpm up to 3000 min-1
• Trapezoidal spindle or ballscrew

NEFF spindle lifting element (MH/JH-series) with standing rotating spindle or non-rotating moving spindle for loads up to 250 kN. The NEFF spindle lifting elements (MH/JH-series) are provided with precisely machined worm wheels, which have separate lubrication with respect to the spindle. As a result, higher input speeds are permissible. The cubic design and machined housing on all sides simplifies actuator alignment during installation.

Construction forms NEFF screw jack MH/JH-series

• Type N : Non-rotating moving screw
• Type R : Standing rotating screw
• Trapezoidal spindle or ballscrew

Features NEFF screw jack MH/JH-series

• 6 sizes with lifting capacities of 5 to 250 kN
• Drive-motor speed of up to 3.000 rpm
• Self-locking rolled trapezoidal screw
• Grease-lubricated version
• All-round handling allows for an easy alignment
• Worm gear pairs in two ratio steps (normal “H” and slow “L”)
• Identically constructed to European manufacturers of worm gear screw jacks with cubical design

Application examples NEFF MH/JH-series

• Lifting systems
• Theatre stages
• Safe opening and closing of the service hatch of wind turbines

NEFF screw jacks (MH/JH series) are also available with accessories such as couplings, connecting shafts and drives for your complete lifting system.

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