What Is The Calculated Life of Machine Screw Jacks and Ball Screw Jacks? What Is The Expected Life of a Screw Jack? Machine Screw Jacks Vs. Ball Screw Jacks?

• Application: Motor, Electric Cars, Motorcycle, Machinery, Marine, Toy, Agricultural Machinery, Car, Lifting and Positioning
• Type: Worm Reducer
• Transport Package: Standard Exporting Plywood Cases
• Trademark: JACTON
• Origin: Made in China
• Model NO.: 250 KG to 100-Ton
• HS Code: 8428909090
• Production Capacity: 6000PCS Per Month

Product Description

What Is The Calculated Life of Machine Screw Jacks and Ball Screw Jacks? What is the Expected Life of a Screw Jack? Machine Screw Jacks vs. Ball Screw Jacks? 

There is no formula available to calculate the life of a machine screw. If a calculated life for the screw is required, specify ball screw jacks, ball screw electric cylinders, or bevel gear jack ball actuators. The calculated life for ball screws is based on the ball nut life. The life expectancy of a screw jacks lead screw, bearings, nut and worm gear set varies considerably due to the extent of lubrication, abrasive or chemical action, overloading, excessive heat, improper maintenance, etc. For detailed life calculations consult Jacton Industry Co.,Ltd.  

Engineers and designers frequently use screw jacks in the design of lifting and positioning equipment. They know that mechanical jacks offer reliable lifting and holding options that can be easily incorporated into their systems.
Once loads, duty cycles, and travel speeds are established, designers must choose the type of jack to select - Ball screw jack or Machine screw jack. Both are good choices for reliably lifting and positioning loads, but when should designers choose machine screw jacks and when should they choose ball screw jacks? Consider the inherent traits of each type of jack.

MACHINE SCREW JACKS
They are best for slower movement and low to moderate duty cycles.
Most machine screw jacks are inherently self-locking in the absence of vibration.
Machine screws are typically low efficient.
A brake motor is usually NOT required to hold position on self-locking jacks.
Stainless steel, metric, and motorized jack models are available with machine screws.
Anti-backlash devices can be specified to limit backlash in reversing loads.

BALL SCREW JACKS
Are capable of moderate to high duty cycles.
Move loads faster and with less horsepower.
They are NOT self-locking and require a brake motor to hold position.
Ball screws are typically high efficient.
They are NOT suited for manual operation.
Ball nut life can be reasonably calculated.
Are good for moving loads with longer continuous travel.

Choose a Machine screw jack if you have a low to moderate duty cycle, slow travel speed, and require a self-locking screw.Machine screw jacks are versatile, dependable, and are used in countless applications. They are frequently used in steel machinery, packaging machinery, food processing machinery, and in wash down applications.
Choose a Ball screw jack if you have a higher duty cycle, faster travel speed, and do not require a self-locking screw. Ball screw jacks are versatile, accurate and dependable. They are used in many of the same industries as machine screw jacks. Ball screw jacks should be chosen over machine screw jacks when faster speeds and higher duty cycles are required or for quick, repetitive operations on presses and on cycling equipment where a calculated ball nut life is required.







Important Note: The original actual pictures, videos, designs and molds came from the audited manufacturer and supplier - JACTON Industry Co.,Ltd. Don't copy the pictures, videos, models, designs and drawing dimensions without JACTON permission.

Shipment and Packing Pictures 
Shipping:
1. Ocean freight: seaport to seaport, price terms CIF, FOB, EXW, CFR etc.
2. Air freight: airport to airport, price terms EXW, CRF etc.
3. Air courier: DHL, FEDEX, UPS, TNT door to door shipment, price terms DDU, CPT etc.

Packing: 
100% standard exporting plywood cases. 
Note: International Exporting Standard Wooden Material with Free Fumigation.


JACTON Advantages
1. International standard materials for All JACTON products. 
2. 100% quality assured with double quality inspections.
3. 100% safety transportation with strong standard export plywood cases materials (free fumigation).
4. Internationl sales engineers have professional knowledge and skills on our standard products and service.
5. All our standard products with 2D CAD Drawings and 3D CAD Models.
6. Custom design available, OEM service available, Free engineering advice and Customer label available.


Finished Projects
1. Theatrical solutions stage and orchestra platform lifts projects. Customers are from France, Australia, Netherlands, United Kingdom, Spain and Canada. 
2. Hydroelectric power station projects and water conservancy projects. Customers are from Vietnam, Australia, Malaysia, Russian Federation, Nepal, Pakistan, Belgium, United States and United Kingdom. 
3. Aircraft maintenance platforms and docking systems projects. Customers are from Pakistan, Singapore and United Arab Emirates.  
4. Solar panel tracking system projects. Customers are from Spain, India and Canada. 
5. Bolted steel storage tanks and silos lifting solutions. Customers are from South Africa, United States, Mexico, Russian Federation, Brazil and Vietnam. 
6. Dish antenna elevation and azimuth positioning projects. Customers are from Singapore, Malaysia and United States. 
7. Railway wagon projects. Customers are from South Africa. 
8. Beverage can production lines. Customers are from Netherlands, United States, Thailand and Indonesia. 
9. Steel factories production lines. Customers are from Iran, United States and Turkey. 
10. Continuous PU sandwich panel production lines. Customers are from Thailand and United Kingdom.  


JACTON Customers Areas(Countries)
1. American Countries: United States, Mexico, Canada, Chile, Bolivia, Brazil, Colombia, Dominican Republic, Honduras, Costa Rica, Panama, Puerto Rico, Jamaica, Trinidad and Tobago, Aruba, Argentina, Peru, Venezuela.
2. European Countries: Russia, Germany, Turkey, France, United Kingdom, Italy, Spain, Ukraine, Poland, Romania, Netherlands, Belgium, Greece, Czech Republic, Portugal, Sweden, Hungary, Belarus, Austria, Switzerland, Bulgaria, Denmark, Finland, Slovakia, Norway, Ireland, Croatia, Georgia, Armenia, Lithuania, Slovenia, Estonia, Cyprus, Luxembourg, Iceland.
3. Asian Countries: Malaysia, Indonesia, Singapore, Pakistan, Philippines, Vietnam, United Arab Emirates, Thailand, Saudi Arabia, Iran, Turkey, India, Nepal, Yemen, Taiwan, Sri Lanka, Israel, Jordan, Kuwait, Qatar.
4. Oceanian Countries: Australia, New Zealand, Fiji.
5. African Countries: South Africa, Egypt, Ethiopia, Nigeria, Kenya, Tanzania. 


JACTON Products List
1. Manual Worm Gear Screw Jacks, Electric Worm Gear Screw Jacks.
2. Worm Gear Screw Jacks Series: JT series acme screw jacks, JTC series cubic screw jacks, JTW series machine screw jacks, JTM series worm screw jacks, JTB series ball screw jacks, JTD series cubic ball screw jacks, JSS series stainless steel screw jacks, JTS series bevel gear screw jacks, Non-standard series screw jacks. 
3. Spiral Bevel Gearboxes Series: JT series bevel gearboxes, JTP series cubic bevel gearboxes, JTA series aluminum bevel gearboxes, JTH series hollow shaft bevel gearboxes, BSS series stainless steel bevel gearboxes.  
4. Screw Lifting Systems and Systems Accessories: two-jacks systems, three-jacks systems, four-jacks systems, six-jacks systems, eight-jacks systems. Accessories cover couplings, universal joints, cardan shafts, connecting shafts, electric motors, geared motors and reducers, hand wheel with crank handles, pillow block bearings, flange block bearings, rod end bearings, stop nuts, limit switches, safety nut, travel nuts, linear shafts and bearings, linear guides and bearings, telescopic spring covers, bellows boot, protective tube, trunnion adapter plates, trunnion mounting brackets, motor flanges, rotary encoders, potentiometers, frequency inverters and position indicators etc.
5. Heavy Duty Linear Actuators Series: Parallel heavy duty linear actuators, In-line heavy duty linear actuators.
6. Geared Motors and Speed Reducers Series: helical gearmotors R series, helical bevel gearmotors K series, parallel shaft helical gearmotors F series, helical worm gearmotors S series, small AC gear motor series and worm gear motor reducer series.


Contact Information
JACTON Industry Co.,Ltd (VAT No.: 9144190007026567X3, registered Capital 500000CNY) is a leading manufacturer and supplier in China. JACTON products include worm gear screw jacks, manual screw jacks, electric screw jacks, machine screw jacks, stainless steel screw jacks, custom made screw jacks, ball screw jacks, spiral bevel gearboxes, right angle gearboxes, worm screw jack systems and accessories, heavy duty linear actuators, gearmotors and speed reducers, linear motion products and power transmission products. We are Alibaba, Made-In-China and SGS (Serial NO.: QIP-ASI192186) audited manufacturer and supplier. We also have a strict quality system, with senior engineers, experienced skilled workers and practiced sales teams, we consistently provide the high quality equipments to meet the customers electro-mechanical actuation, lifting and positioning needs. Jacton Industry guarantees quality, reliability, performance and value for today's demanding industrial applications.
Website (English): screw-jacks.en.made-in-china.com
Website (English): screw-jacks.en.made-in-china.com
Website (Chinese): screw-jacks.en.made-in-china.com