Trapezoidal screw jack JA series
safety nutfor solar panelscast iron

trapezoidal screw jack
trapezoidal screw jack
trapezoidal screw jack
trapezoidal screw jack
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Characteristics

Type
trapezoidal screw
Other characteristics
safety nut, for solar panels, cast iron, aluminum
Load

Min.: 2 kN

Max.: 1,250 kN

Torque

Min.: 3 Nm
(2 ft.lb)

Stroke

Min.: 50 mm
(1.97 in)

Max.: 2,000 mm
(78.74 in)

Description

JA series standard screw jacks (trapezoidal screw) This safe design includes a self-locking feature. Models designed for a variety of applications have been standardized to a capacity of 2 kN to 1250 kN. Features This series includes a self-locking feature through the use of a trapezoidal screw making it possible to hold the screw shaft even if there is an unintended power cut off. Grease lubrication is used for the worm reduction section in the range from 2 kN to 10 kN and oil bath lubrication is used for capacities of 25 kN or more. This design is sufficiently rigorous even for high-speed operation. An ideal bearing structure produces high performance. The standard capacity covers a rich range from 2 kN to 1250 kN. Makishinko has experience manufacturing up to a capacity of 2000 kN. Structure [JA002 to JA010] Screw shaft end Select from a rich variety of fitting configurations. High precision, large screw shaft This series uses a trapezoidal screw. Ideal bearing structure This series uses a tapered roller bearing that is durable against both thrust and radial loads. *002 Deep groove ball bearings used High precision worm wheel This series uses a special aluminum bronze material which has been machined with high precision and offers ample strength. Large input shaft This series offers ample strength for the use of multiple connected jacks. Screw shaft guide A screw guide is provided on the output shaft cover of the worm wheel to minimize drift of the screw. Grease lubrication Grease lubrication offers easy maintenance. Light weight housing The housing is manufactured from diecast aluminum and is both lightweight and compact.

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.