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automated screw jack ppt


Posted by:
Created at: Thursday 15th of January 2015 01:21:35 PM
Last Edited Or Replied at :Thursday 15th of January 2015 01:21:35 PM
I need some important video and..................[:=> Show Contents <=:]



literature review of battery operated car screw jack pdf


Posted by:
Created at: Thursday 29th of November 2012 03:07:53 AM
Last Edited Or Replied at :Thursday 29th of November 2012 03:07:53 AM
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literature papers on battery operated screw jack
literature papers on bat..................[:=> Show Contents <=:]



mechanical screw jack advantages and disadvantages ppt


Posted by:
Created at: Tuesday 20th of November 2012 03:25:17 PM
Last Edited Or Replied at :Tuesday 20th of November 2012 03:25:17 PM
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mechanic..................[:=> Show Contents <=:]



precision screw jack lift platform


Posted by: nosenkw
Created at: Tuesday 04th of October 2011 04:20:43 AM
Last Edited Or Replied at :Wednesday 05th of October 2011 11:35:02 PM
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, guides, gear reducer etc. Considering all the factors, usually, NOSEN supplies screw jacks and bevel gearboxes to clients, whose engineers build the precision lift table following NOSEN engineers AutoCAD drawings.
Screw jack lift system features:
1. Heavy duty, positioning precision, uniform lift speed, fully synchronized, self locking
2. Multiple jack system, from pair jacks system to fourteen jacks system
3. Electric driven, manual operated are available
4. Extremely high capacity requirements of need very precise up or down control. Because the screw jack lift system is of high ..................[:=> Show Contents <=:]



motorized screw jack


Posted by: nosenkw
Created at: Tuesday 04th of October 2011 04:17:59 AM
Last Edited Or Replied at :Tuesday 04th of October 2011 04:17:59 AM
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gear screw jack technical datasheets. Operating horsepower does not less than the datas on technical datas sheets. The lifting speed depends on the use of screw jack, the control of motor speed is necessary. Electric motor drive revolutions are not exceed 1800 RPM, max linear speed is 30 mm/sec.

RN-Series, Acme screw jacks
Fast speed: 1500 mm/min
MID speed: 750 mm/min
Low speed: 375 mm/min

When the worm shaft speed is known, the distance the load can be raised per minute can be determined with this formula:
Raise per minute = RPM of Worm Shaft * Lifting Screw Pitch / Worm Gear ..................[:=> Show Contents <=:]



Worm Gear Screw Jacks


Posted by: nosenkw
Created at: Friday 12th of August 2011 02:05:32 AM
Last Edited Or Replied at :Friday 12th of August 2011 02:05:32 AM
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1 turn 0.25 mm travel
375 mm/min
Tolerance & Backlash
Trapezoidal-type screw axial backlash 0.15 mm, radial backlash 0.2 mm, lifting screw outer diameter and sleeve diameter free backlash 0.2 mm. Ball screw backlash depends on different accuracy rated.
Worm shaft&worm gear play, high speed(N), worm shaft backlash ± 3 degrees, Low speed(L), ± 5 degrees.
Lateral Force
Usually, screw jack only loads lift screw axial loading, don't permit to load any lateral force. Any lateral force will reduce screw jack working life, even damage screw jack. We suggest, lateral forces ..................[:=> Show Contents <=:]



Remote Controlled Screw jack


Posted by: vipsul
Created at: Thursday 02nd of September 2010 01:00:57 PM
Last Edited Or Replied at :Thursday 05th of January 2012 10:00:18 PM
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plz give me details regarding the proj..................[:=> Show Contents <=:]



Easy Go Electric Screw Jack


Posted by: computer science topics
Created at: Tuesday 15th of June 2010 06:48:52 AM
Last Edited Or Replied at :Tuesday 21st of December 2010 10:03:06 PM
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perated by Electric Power of carsâ„¢ own battery & capable of raising a 1600 lbs load...................[:=> Show Contents <=:]



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