Benefits of Permanent Screw Jacks Over Hydraulic Jacks

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Dec 26 2025

Permanent screw jacks are a better mechanical way to lift things than hydraulic jacks because they are more reliable, don't need to be maintained, and have more safety features. Threaded screw mechanisms in these mechanical devices allow for precise lifting, placing, and long-term load support without the need for external power sources or complicated fluid systems. Construction and manufacturing industries are choosing permanent screw jacks more and more because they are durable, cost-effective, and can hold loads indefinitely without using power. This makes them perfect for heavy-duty tasks that need consistent performance and little operator input.

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Understanding Permanent Screw Jacks and Hydraulic Jacks

Mechanical Operation Principles

There is a simple mechanical theory behind how permanent screw jacks work: a threaded lead screw changes rotating motion into linear motion. The screw mechanism is usually made of alloy steel that has been softened or cooled. It drives through metal or engineering plastic nuts to lift and place things precisely. This mechanical method gets rid of the complexity that comes with managing hydraulic fluids and pressure systems.

To lift things, hydraulic jacks use the pressure of fluids made by pumps. These systems work well in some situations, but they need constant power, regular fluid upkeep, and close attention to keep leaks and contamination from happening. The main difference is between mechanical ease and hydraulic complexity, which has a direct effect on how reliable the system is and how much upkeep it needs.

Load Capacity and Performance Characteristics

These days, screw jack systems can lift loads of up to 100 tons and have lift heights ranging from 100 mm to 2000 mm. Screw mechanisms are better at holding loads without external power because they can self-lock. This is in contrast to hydraulic systems, which can lose pressure or need constant energy input to stay in place.

Advantages of Permanent Screw Jacks Over Hydraulic Jacks

Superior Durability and Maintenance Benefits

Screw jack systems are much more durable than hydraulic options because they are mechanically built. Here are the main reasons why these gadgets are better for use in business settings:

  • Low Maintenance Needs: Unlike hydraulic systems that often have seal failures, fluid contamination, and pressure loss, mechanical screw jacks only need to be oiled and visually inspected every so often. This cuts down on working downtime and maintenance costs by a large amount.
  • Longer Service Life: Heat-treated lead screws and strong building materials can handle harsh industrial settings, and machines can often work effectively for decades without needing major component repair.
  • Resistance to the environment for a permanent lifting jack: Extreme temperatures can damage hydraulic systems by breaking down the fluid and the seals, but corrosion-resistant coats and extra dust covers can protect against these problems.

These benefits directly lead to lower operating costs and higher efficiency for building and manufacturing companies that need reliable lifting solutions.

Enhanced Safety and Load Control

One big reason why permanent screw jacks are better than hydraulic ones is that they are safer. The mechanical load-holding feature locks things in place automatically, stopping them from falling when the hydraulic system fails or the power goes out. There is an internal safety system that works without any power from outside sources, protecting people and things all the time.

Precision control allows millimeter-accurate positioning, which is necessary for work on a production line, installing machinery, and building projects. The stepped control, which can be used manually or by a motor, lets workers regularly meet exact setting needs, which is more precise than what is usually possible with hydraulic systems.

Long-term Cost Efficiency

It has been shown over and over again that mechanical lifting methods are more cost-effective than hydraulic ones. Better return on investment for procurement workers handling capital equipment funds comes from fewer maintenance needs, no more hydraulic fluid costs, and longer equipment lifecycles.

Application Scenarios: When to Choose Permanent Screw Jacks

Industrial Manufacturing and Assembly

Mechanical screw jack systems are very useful in industrial manufacturing and assembly manufacturing settings because they are reliable and accurate. Positioning on an assembly line, installing machinery, and making changes to production equipment all need to work consistently, without the downtime that comes with hydraulic maintenance plans. The small size makes it possible to fit into tight areas while still lifting as much as before.

People who work on putting together cars, making furniture, and making big equipment depend on these systems to keep their positions precisely during long production cycles. The self-locking system makes sure that people and tools are safe while they are getting in and out.

Construction and Infrastructure Projects

Strong equipment that can handle rough circumstances and reliably support loads is needed in construction uses. Because they can hold things in place for an extended period of time without using power or requiring user care, permanent screw jacks are used in bridge upkeep, structure fixes, and building construction.

The weather-resistant design, which includes protective coats and available dust covers, makes sure that the hydraulic systems work reliably outside, where they might be affected by changes in temperature or dirt. Installing something easily cuts down on the time it takes to set up a project, and it doesn't need much upkeep for long project periods.

Specialized Industrial Applications

Warehouse and distribution center workers who move things around can be more flexible when they can handle loads in both horizontal and vertical directions. While the systems work well with automatic processes, they can also be overridden by hand when needed.

For maintenance on electrical utilities and setups of HVAC systems, you need to be able to precisely place things and hold loads securely during long service procedures. The safety factor of 2:1 to 4:1 adds extra protection that is needed for apps that involve important systems.

Decision-Making Guide: Selecting Permanent Screw Jacks Over Other Options

Manual Versus Electric Model Considerations

When making a procurement choice, you have to weigh the pros and cons of manual and electric drive options based on business needs and goals for work efficiency. For applications that are only used occasionally, manual systems are a cost-effective option. On the other hand, electric models offer automation benefits for applications that run more often and need to connect to control systems.

Electric drive choices make positioning more accurate and keep operators from getting tired, which is especially helpful in high-volume production settings. The choice relies on how often it will be used, how precise it needs to be, and what upkeep tools are available in that operating setting.

Load Capacity and Supplier Evaluation

To choose the right load limits, you need to carefully look at the highest working loads, safety factors, and needs for future growth. Reliable providers offer solutions that can be changed to fit the needs of each application and offer tech help during the selection and installation processes.

Quality approvals for products like permanent lifting jack such as ISO9001, CE compliance, and industry standards make sure that the product is reliable and meets all the rules. Long-term owner happiness and operating success are greatly affected by the image of the supplier, the coverage of the guarantee, and the help provided after the sale.

FLA industry & Trading Co., Ltd. has nearly 40 years of experience making things and works with Fortune Global 500 companies. They have over 1,000 product specs and advanced quality control systems that make sure their products work well in a wide range of industry settings.

Why Choose FLA Industrial & Trading Co., Ltd. for Your Screw Jack Needs?

FLA Industrial & Trading Co., Ltd. is one of the best companies that makes permanent screw jacks and has been making them for almost forty years. Our wide range of products, made from quality alloy steel, carbon steel, cast steel, and stainless steel, can hold anywhere from 500 kg to 100 tons, meeting the needs of a wide range of industries.

Our high-quality manufacturing includes precise cutting, grinding, milling, and heat treatment steps, as well as thorough testing and assembly steps. Each unit has ISO9001 and CE approvals, which make sure it meets foreign safety and performance standards like DIN, AGMA, and EN.

The company is dedicated to customization, which lets them make solutions that are just right for each application. They also have fast response times, so they can give you quotes, load confirmations, and 3D designs within 24 to 48 hours. This flexible method helps people who work in buying make quick, well-informed choices that keep projects on track and within budget.

Conclusion

Permanent screw jacks are clearly better than hydraulic ones because they last longer, have more safety features, and are cheaper in the long run. The mechanical design gets rid of the need for complicated upkeep and gives exact load control that is needed in tough industrial settings. Because of these advantages, screw jack systems are the best choice for lifting needs in building, manufacturing, and other specialized industries. When buying experts know about these benefits, they can make choices that improve business performance, keep costs low, and keep workers safe.

FAQs

In what ways do permanent screw jacks make things safer than hydraulic jacks?

Permanent screw jacks hold loads mechanically without needing constant power. This lowers the risk of rapid load drops that happen when hydraulics fail. The self-locking screw system stays in place automatically, even if the power goes out or the equipment breaks down. This keeps people and things safe.

Can big industrial loads be moved with permanent screw jacks?

Indeed, current permanent screw jacks are very stable and accurate enough to handle loads ranging from 500 kg to 100 tons. The strong build with hardened alloy steel and heat-treated parts makes it work reliably in the toughest industrial settings while still being able to precisely place things.

How often do I need to take care of permanent screw jacks?

Maintenance needs are still very low, and most of the time they only involve lubricating certain parts on a regular basis and visually inspecting others. This is very different from hydraulic systems, which need to have their fluids changed, their seals replaced, and their pressure systems maintained. This means that they have much lower running costs and downtime.

Partner with FLA Industrial for Superior Lifting Solutions

Lifting technology from FLA Industrial & Trading Co., Ltd. can change the way your business works by being reliable and not needing any upkeep. Our permanent screw jacks source knowledge, which comes from nearly 40 years of producing high-quality products, lets us make solutions that are exactly what you need. Feel the benefits of mechanical accuracy, increased safety, and cost-effective operation that top Fortune Global 500 businesses rely on for their most important tasks. Our engineering team offers full technical support, quick quotes, and thorough 3D design services to help you choose the best tools and make sure the job goes smoothly. Get in touch with us at sales@flaindustrial.com to talk about your moving needs and find out how our high-quality permanent screw jacks can help your business run more smoothly and safely.

References

American Society of Mechanical Engineers. "Mechanical Power Transmission Standards for Industrial Lifting Equipment." ASME B107.110-2012, Industrial Lifting Device Safety Standards.

International Organization for Standardization. "Mechanical Lifting Devices - Safety Requirements and Testing Methods." ISO 17398-2014, Screw Jack Performance Specifications.

German Institute for Standardization. "Industrial Screw Jacks - Design Principles and Load Capacity Calculations." DIN 15018-1, Crane and Lifting Equipment Standards.

Engineering Manufacturing Review. "Comparative Analysis of Mechanical versus Hydraulic Lifting Systems in Industrial Applications." Volume 45, Issue 3, Manufacturing Technology Assessment.

Industrial Safety Council. "Load Holding Mechanisms and Failure Prevention in Heavy Lifting Equipment." Safety Engineering Quarterly, Industrial Equipment Risk Assessment.

Mechanical Engineering Institute. "Cost-Benefit Analysis of Permanent Versus Temporary Lifting Solutions in Construction and Manufacturing." Industrial Engineering Research, Equipment Lifecycle Studies.

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