カテゴリー: category_usa

What Is a Stainless Steel Grating?

Stainless steel grating is a grating-shaped metal product manufactured primarily from stainless steel and used for floors and road surfaces.

Gratings are used not only as gutter covers for drainage systems such as roads, but also as lids for drainage ditches in public bathhouses.

In most cases, grating is manufactured from steel or aluminum. Stainless steel grating is highly resistant to corrosion and wear and has excellent strength. It is widely used for reinforcing floors and road surfaces and for structures such as bridges.

Lightweight yet strong, it is easy to install and easy to maintain. Because of its beautiful appearance and luxurious feel, it is sometimes used for building exteriors.

Uses of Stainless Steel Gratings

Stainless steel grating is made of stainless steel, which is more resistant to rust and corrosion than steel and stronger than aluminum. Therefore, stainless steel grating is widely used in civil engineering and construction. It is used in areas where the surface is easily scratched and requires a certain degree of strength.

In factories, warehouses, and commercial facilities, it is widely used as floor reinforcement and reinforcement plates. It is also used as an aisle for transporting heavy objects and as a running surface for vehicles. It is used in areas with heavy coastal traffic.

They are also used as covers for drains and ventilation openings. These facilities are necessary to remove water, moisture, and foul odors from around buildings. Stainless steel grating allows for walkability and drainage/ventilation.

They may also be used as reinforcement for bridges. Since bridges are used for vehicular and pedestrian traffic, stainless steel grating ensures strength. In addition, it may be used for the design and appearance of building exteriors, taking advantage of its beauty and luxurious feel as a metal product.

Principle of Stainless Steel Gratings

Stainless steel grating is a plate-like structure made of intersecting steel members formed in a grid pattern, the principle of which is the dispersion of forces. Water and heavy objects can pass through stainless steel grating, and the grating can support the load by distributing the load evenly.

Stainless steel grating has numerous openings in the form of a lattice, which enhances ventilation and drainage. This makes the structure suitable for drainage channels and ventilation openings. The use of stainless steel makes them highly resistant to corrosion and wear, and they can withstand long-term use. As a result, they are widely used in buildings and facilities where functionality and durability are required.

Types of Stainless Steel Grating

There are various types of stainless steel grating depending on the manufacturing method. The following are examples of stainless steel grating types.

1. Stainless Steel Welded Grating

One-piece welded grating made of processed stainless steel plate. It has high strength and can support a large area. It also has deep grooves in the horizontal direction and is slip-resistant.

2. press lock grating

Press-lock grating is made by processing stainless steel plates into an interlocking structure. It is used for indoor and outdoor construction sites and rooftops because of its non-slip effect and high safety as scaffolding.

3. Honeycomb Grating

Honeycomb grating is a grating with a honeycomb structure. It is characterized by its strength while being lightweight. Because of its high drainage effect, it is used for rainwater drainage channels.

What Is a Steel Pallet?

A pallet is a loading platform used for transportation and logistics. Pallets can be made of wood, synthetic resin, metal, or paper, and steel pallets are synonymous with metal pallets. Steel and aluminum pallets are the most common types, and they come in a variety of shapes.

Steel pallets have a high load-bearing capacity, with typical pallets usually having a load-bearing capacity of 1 ton, but many exceed that.

Sizes are manufactured according to standards established by the International Organization for Standardization (ISO).

Uses of Steel Pallets

Pallets are used for cargo storage, premises work, and transportation. They serve to reduce the burden of cargo handling operations and increase productivity. They are a prerequisite for forklift operations and an indispensable logistics material for unit load systems (a system that uses logistics equipment to handle cargo and streamline transportation, storage, etc.).

In the case of pallets without a superstructure (flat pallets), loads are placed on the platform and moved by inserting the jaws of a forklift or hand lift into the gaps between the pallets and lifting them.

Principle of Steel Pallets

Steel pallets, made of iron or aluminum, are stronger and have a higher load capacity than those made of other materials.

Wooden pallets crack and wane with use, causing increased strength and hygiene problems, but steel pallets can be used for long periods without damage.

Steel pallets are easy to clean and sterilize and are hygienic. For this reason, they are often used in food and medical logistics.

In addition, wooden pallets may bring in pests or exotic plant seeds when imported goods are brought in from abroad, which may lead to environmental destruction.

Resin pallets require expensive tooling costs to make molds that are not available in ready-made sizes, but steel pallets are less expensive and can be made in any size.

However, they are not commonly used due to their high cost and the fact that they are difficult to operate due to the considerable weight of the pallets themselves. However, with advances in technological development, inexpensive and lightweight steel pallets are beginning to appear.

What Is a Steel Grating?

Steel grating is a construction material consisting of steel grating plates.

Steel grating is mainly used for road gutters, etc., and is made up of steel plates in a grid pattern to drain rainwater away from the road while acting as a lid to prevent people and objects from falling.

It is typically formed of flat plates and intersecting steel rods. This pattern allows water and air to pass freely, while at the same time holding people and objects from falling through. Because of these properties, they are often used in building drainage channels, walkways, and other structures.

In addition to steel gratings, there are also stainless steel, FRP, and aluminum gratings. Steel grating is the least expensive of them all. Most products are galvanized to prevent rust and deterioration.

Uses of Steel Gratings

Due to their high strength and durability, steel gratings are used as a variety of construction materials. They are mainly installed in road gutters to drain rainwater.

It is used as a cover for drainage ditches because it allows water to pass through easily and allows water to drop down without clogging the drainage channels. Its high load-bearing capacity allows vehicles and people to ride on the upper part of the floor as a lightweight yet robust floor.

Because steel grating is non-slip yet robust, it is also used as a stairway surface and handrail. It is also used for the floor of pedestrian bridges. Because it is lightweight yet strong, it can be used to span large spans of bridges, thus reducing the load on the bridge.

Principle of Steel Gratings

Steel grating is fabricated by vertically attaching a steel member called a twist bar to a steel member called a main bar. The resulting lattice panels are then cut to length and the outer frame, called the end bars, is welded on. Finally, the panels are galvanized.
　　　
The side with the twist bars pressed in is the front side, and the side without the bars is the back side. If the front and back sides are installed incorrectly, the anti-abrasion protection will be inadequate. This can lead to accidents due to malfunctions such as stepping off or wheelchair wheels catching on the grating.

Steel grating is sold at a lower price than stainless steel, FRP, or aluminum grating, but it is susceptible to rust. They are not suitable for installation in seaside areas or hot spring resorts. As a countermeasure against salt damage and corrosion, aluminum alloy plating is also available, which provides six times longer service life than ordinary hot-dip galvanizing.

The length of each grating is also fixed, and the length of each grating is approximately 1 meter (actual size: 993 to 995 mm), except for the bulkhead and masu-buta types. Some grating products are non-slip to prevent the heels of strollers, wheelchairs, and high-heeled shoes from getting caught in the grating.

Types of Steel Gratings

Steel gratings are available in various types according to the shape of the trench in which they are installed, including groove lid, square lid, and brimmed types.

The groove lid type has a groove on the bottom surface to receive water. The square lid type has a flat surface that allows water and air to pass through easily. The brimmed type has a shape with a brim around the perimeter.

There are five types of T-2, T-6, T-14, T-20, and T-25, which are also classified according to load capacity.

1. T-2

The T-2 type is a steel grating with a very small notch. It is compact, lightweight, highly permeable, and easy to maintain. On the other hand, it is characterized by low strength against load and slightly inferior anti-slip performance. It is used for sidewalks, stairs, and scaffolding to maintain pedestrian safety.

2. T-6

This steel grating has deeper notches than T-2. Because of its high load-bearing strength, it is generally used for factory floors and platforms.

3. T-14

Has deeper notches and is used to support larger loads. Typically used in industries such as oil refineries and steel mills.

4. T-20

Has very high strength to load and can support large weights. It is often used in industrial applications such as aircraft maintenance. It is also used in harsh environments such as offshore and oil fields.

5. T-25

T-25 is stronger than T-20 and is used under high loads. Used in factories and port facilities where trucks and large machinery frequently pass through.

What Is a Stand-Up Bag?

Stand-up bags, also called freestanding bags, are so-called hand-cut plastic bags with a bottom gusset.

The bags are made of thicker material, and as the name “stand” implies, the bags themselves can stand on their own and be managed when filled with contents.

Because they are polyethylene bags, they are highly transparent, making it possible to see the contents at a glance without having to open the bag.

Some bags are equipped with zippers, making them even more functional.

Uses of Stand-Up Bags

Stand-up bags are often used for food applications.

They are often used for displaying produce such as mini-tomatoes and strawberries, and for selling detergents and cosmetics.

Zippered bags are also often used to put cookies and other snacks, tea leaves, and other items that move frequently in and out of the bags.

Some types are also used to hold liquids such as health food jellies, juices, and medicines.

Principle of Stand-Up Bags

Stand-up bags stand on their own because they have a gusset at the bottom.

Stand-up bags with a zipper for opening have a notch at the top of the pack, which makes it easy for consumers to open the pack by hand at the top of the zipper.

In addition, the bag is cut at the top of the zipper, allowing the bag to be resealed with the zipper after opening.

Other Types of Stand-Up Bags

1. Flat Bags

There is another similar type of bag called a flat bag. It is flat and there are no gussets on the sides, so it does not stand up on its own and is not suitable for thick raw materials.

However, these bags have the advantage of being less bulky.

2. Gusset Bags

Gusset bags are flat bags with gussets on the sides. They can hold thicker raw materials than flat bags.

3. Three-Side-Seal Bags

Three-side-seal bags are made by heat-sealing the top and sides of the bag at the time of production.

4. Square Bottom Bags

Square bottom bags have a gusseted, square bottom and can hold a large amount of raw materials.

What Is a Stand-Up Pouch?

A stand-up pouch is a pouch that can stand on its own and has folds at the bottom. The technology was introduced in France in the 1960s and gradually spread throughout the 1980s.

The characteristics of this type of pouch are that it is excellent for displaying products, and it can also be used to create attractive displays. In addition, the notched opening, zipper, or stopper can be selected according to the contents to be filled. Also, depending on the way the contents are to be used, it is used for a variety of applications, including food and toiletry products. In recent years, with the increase in environmental awareness, they are also used for refillable products.

Uses of Stand-Up Pouches

Stand-up pouches are currently used in a wide range of products, including seasonings, miso, soft drinks, soups, pouch foods, and dressings.

The first commercial products were developed for use in packaging processed marine products and processed agricultural products that had previously been packed in cans or bottles. Later, as technology advanced, it became possible to add various properties such as moisture resistance, transparency, suitability for vacuum packaging, low-temperature resistance, impact resistance, abrasion resistance, gas barrier property, light shielding property, and oil resistance, making it suitable for a wide variety of applications. Those with stoppers are also used for jelly beverages and refillable edible oils.

Characteristics of Stand-Up Pouches

Stand-up pouches are made up of two parts, depending on the pouch production method. One consists of a two-piece body and bottom, and the other consists of a single piece. The materials used include biaxially oriented polyester film, cellophane, and aluminum film.

Stand-up pouches use a barrier material to prevent deterioration of the contents, but the barrier material has been gradually changing with technological advances. When first introduced to Japan, PVDC coated film and AL foil were commonly used. However, in the 1970s, EVOH resin and other barrier materials became available, and the development of laminated films that could be retorted using high-performance urethane adhesives and other materials led to the popularization of stand-up pouches as packaging materials.

Pouches for beverages became popular as a new application after they revised food sanitation laws to allow the use of polyester and NY as materials. In the case of beverage use, the emphasis is on flavor matching with the packaging material.

Later, dessert pouches were commercialized using food preservation techniques that combine low PH and high sugar content of the food itself, boil sterilization, and food deterioration prevention techniques such as packaging materials incorporating barrier materials such as EVOH in laminated films. In addition, the use of O-NY, which is easily torn in one direction, in laminated films to improve tear capability, has evolved into a commercial product.

Other recent improvements include the use of single-site polyethylene to increase material strength to prevent pinholes and ruptures, and the emergence of transparent vapor deposited films with silica or alumina barrier materials deposited on O-PET or O-NY.

What Is a Stud?

Studs are metal fittings or clasps. The most common method is to insert them, but depending on the use of the stud, the tip of the needle may be crushed.

Other types of studs include rivets, stud bolts, and spike tires. Tacks are also used as decorative studs on furniture, bags, and clothing. For example, iron tacks are used for furniture.

Uses of Studs

Studs are mainly used to secure paper or metal. However, the name stud is used for a wide range of industrial products and components, and the industries and fields in which they are used vary widely. Accordingly, studs come in a wide variety of materials, from metals to plastics.

For example, rivets are among studs, and familiar ones are used to fasten car seats, sheet metal parts, and shutter assemblies.

On the other hand, studs are also used for what are called decorative studs, and in this field, they are used not for fixing things but for decoration. For example, it can be processed to look like an antique, so it is often used as a decoration on residential doors.

Studs are also incorporated into spiked tires, where they are used as non-slip metal studs.

Principle of Studs

Studs are used for a wide range of applications, and the construction of studs varies.

For example, drawing studs can be fixed to walls and objects mainly by simply pushing them into the area from the stud to the head of the shade shape. inserted, very little force is required. The same principle applies to decorative tacks.

Rivets, on the other hand, are generally fastened using a tool such as a hand riveter. There are various types of rivets, and some rivets are fixed by crushing the part of the rivet that is to be pressed into the rivet. Base materials that are difficult to be crushed by hand can be easily fixed by using tools.

Buttons utilized on clothes can also be classified as studs; round buttons sewn on Y-shirts do not fall into the stud category. Some decorated buttons, however, have separate upper and lower parts, and the upper pin portion and the lower receiver portion fit together to form a decorative button.

Thus, studs are used in other fields because they are relatively inexpensive to produce and there are many available.

What Is a Scale Inhibitor?

Scale Inhibitors, also known as Scale Removers, are an agent that removes water-insoluble stains that have accumulated in transmission and drainage facilities, equipment, and piping.

Scale is a crystallized substance that forms when minerals such as silica, magnesium, and calcium dissolved in groundwater become insoluble in water due to oxidation caused by contact with air or changes in pressure and temperature.

Once crystallized and adhered inside piping equipment, it is extremely difficult to remove, resulting in problems during drainage.

Uses of Scale Inhibitors

When scale clogs the piping of a factory manufacturing site or a boiler in a hot spring, the pressure required for sending and draining water increases. Water circulation slows, production capacity and thermal efficiency decrease, and operating and administrative costs increase.

To remove scale, which is one of the causes of equipment failure related to pumping and draining, removers tailored to various scale components are required.

Other applications include the removal of scaling that forms on mirrors and automobile surfaces.

Principle of Scale Inhibitors

Calcium in groundwater is dissolved in the form of calcium bicarbonate in a high-pressure environment along with carbon dioxide.

As it emerges from the ground to the surface, the pressure drops, and carbon dioxide is released from the groundwater, causing the calcium bicarbonate to precipitate out as calcium carbonate, which is insoluble in water.

Since calcium-based scales can be dissolved under acidic conditions, a pH adjuster such as hydrochloric acid or an oxygen scavenger is used as a remover.

Calcium and magnesium combine with silicon dioxide dissolved in water, and when concentrated in a heat exchanger, magnesium silicate and calcium silicate precipitate and adhere to the surface, forming a scale.

Silica scale is made of silicon, a constituent of glass, and is difficult to remove even with acidic detergents.

What Is a Screwless Terminal Block?

Screwless terminal blocks are a method of securing wiring without the use of screws.

This design significantly reduces the time and effort required for wiring work and at the same time improves the quality of signal transmission. It also greatly improves long-term reliability because it reduces the risk of contact failures due to loose screws.

Especially for hardware engineers and purchasing managers, it is worth seriously considering the use of screwless terminal blocks as an option for new projects and upgrades, as they can be expected to increase production efficiency, enhance maintainability, and even reduce overall costs.

In light of the above, screwless terminal blocks are gaining attention in many industries as a connection solution for modern electronic technology due to their superior characteristics and advantages.

Uses of Screwless Terminal Blocks

Screwless terminal blocks are increasingly being used in a variety of industries and applications as a screwless signal and power connection technology. Here we examine their main applications in detail.

1. Distribution Boards and Switchboards

Distribution boards and switchboards are central devices for power distribution and control. Screwless terminal blocks are extremely useful in these installations because they require solid connections and long-term reliability. They improve safety and maintainability by reducing the risk of loose screws and poor contact.

2. Semiconductor Manufacturing Equipment

In semiconductor manufacturing processes, which require precision and advanced technology, reliable electrical connections are essential. Screwless terminal blocks are ideal for quick and reliable wiring while maintaining signal accuracy and quality.

3. Machine Tools

Machine tools often operate in harsh environments with vibration and heat, requiring highly reliable connection technology. Screwless terminal blocks can maintain stable connections even under such conditions.

4. Storage Batteries

Screwless terminal blocks are increasingly being used to connect storage batteries. This technology is suitable for applications involving high currents and rapid charging and discharging, which require secure connections and high durability.

5. Photovoltaic/Solar Power Generation Equipment

Photovoltaic and solar power generation equipment is sensitive to environmental influences and requires long-term reliability and ease of maintenance. Screwless terminal blocks are the ideal choice to meet these requirements.

Principle of Screwless Terminal Blocks

1. Screwless Terminal Block Spring

The springs set into screwless terminal blocks are often made of stainless steel, and the conductive parts are electrolytic copper or tin plated, making them as durable as or more durable than screw-type terminal blocks over long periods of use. The clamping force of screwless terminal blocks is based on spring force, so they do not require periodic retightening as screw-type terminal blocks do.

The spring force set inside the terminal block secures the wire, and the larger the diameter of the wire, the stronger the clamping force. Therefore, even when using cables of different diameters on the same terminal block, the wire is not easily loosened and can be secured without damaging the wire.

2. Screwless Terminal Block Fixing Method

To secure a wire that has been stripped of its sheath, use a flat-blade screwdriver or a dedicated knob to reduce the force exerted by the spring to hold the wire in place, and insert the wire all the way to the back of the connection port. When removing an electric wire, use a flat-blade screwdriver or a dedicated knob to weaken the spring-loaded restraining force and pull the wire out of the connection port.

Types of Screwless Terminal Blocks

Screwless terminal blocks are widely used in many industries for their convenience and reliability. Various types of screwless terminal blocks are designed and manufactured to suit different uses and applications.

1. For Panel Mounting

Screwless terminal blocks for panel mounting are designed for direct mounting on the external panel of equipment and facilities. This allows for easy access and maintenance.

Primary applications include large equipment, facilities, and electrical wiring termination connection points.

2. For Board Mounting

Screwless terminal blocks for board mounting are designed for direct mounting on electronic boards. This allows them to be used in applications requiring compact design and high integration.

Primary applications include wiring terminations in electronic devices and PCBs, connections between modules, and signal transfer points.

3. For Relaying

Screwless terminal blocks for relaying are used to easily connect and relay two or more electrical circuits. They are characterized by multifunctionality and modular design. In many cases, they are compatible with existing wiring systems.

Primary applications include connecting and branching between cables and extending or modifying electrical circuits.

What Is a Screwfeeder?

A screwfeeder is a machine that uses screw-shaped blades to feed supplies at a constant speed.

It consists of a spiral-shaped section called a flight, and supplies are fed as the flight rotates. The target objects are often powders, and the machine is used to feed a variety of materials, such as livestock feed.

With liquids, the flow rate can be controlled by opening and closing valves, but with powders, the conveying speed must be changed. In addition, changing the speed of a conveyor or other equipment at only one point may cause shelf fishing or spurting. A feeder is a device that prevents such problems and controls the feed rate.

There are various types of feeders, such as electromagnetic feeders, table feeders, etc., in addition to screwfeeders. They are used according to the required performance, such as the particle size and strength of the powder or grain to be fed, the processing volume, and the fixed-quantity feeding capability. Screwfeeders have relatively high quantitative feeding performance.

Uses of Screwfeeders

Screwfeeders are used in a variety of applications for the purpose of conveying powders.

A typical application is feed feeding in the livestock industry, where they are used to automatically feed livestock and birds on poultry farms. It is possible to supply the appropriate amount of feed according to the condition of the livestock and the time of day. Automatic feeding reduces the burden on keepers and contributes to more efficient breeding management.

They are also used at construction sites. They are used to automatically feed building materials such as concrete and cement. Screwfeeders can feed building materials at a constant speed, contributing to improved work efficiency.

They are also used for feeding raw materials in factories. They are particularly effective for automatically feeding powdered raw materials. It can feed raw materials at a constant speed, supporting stable operation of the production line.

Principle of Screwfeeders

Screwfeeders consist of spiral-shaped sections called flights, which feed material as they rotate.

Screwfeeders can control the delivery of supplies. Supply is controlled by adjusting the rotation speed, the shape of the flights, and the tilt angle of the container. Rotation speed can be controlled by employing inverters, for example.

In addition, plates called baffles may be placed between flights to control the flow of supplies. Baffles are used to control the flow of supplies and achieve uniform feeding.

Structure of a Screwfeeder

It consists of a spiral-shaped flight called a screw attached to a cylindrical container. The flights are attached to the inside of the cylindrical container and the rotation of the flights allows supplies to be fed out of the container. Flights are available in left-handed and right-handed products, selected according to the direction in which supplies are to be sent out.

Screws are available not only in vane type but also in ribbon type where the shaft itself is helical. The number of shafts also varies, including single and double shafts. Generally, these are designed according to the characteristics of the powder or grain to be conveyed.

How to Select a Screw Feeder

In screwfeeders, the driving force of conveying is the friction between the screw and the powder/pellets. Therefore, there is a risk of wear and shape breakage of the powder/pellets. To avoid this, appropriate selection of wear-resistant treatment of the screw and shape of the blades is necessary. It is not suitable for conveying coarse particles that are prone to breakage.

Selection should also be based on the properties of the material. Screwfeeders of appropriate materials must be selected according to the properties of the materials used. For example, when handling corrosive substances, it is necessary to select a screwfeeder made of highly corrosion-resistant stainless steel or similar material.

After considering the above, output capacity should be selected. The output of a screwfeeder affects the rate at which materials can be fed. The output represents the amount of material that can be fed per hour and is expressed in units such as L/h or kg/h.

Other Information on Screw Feeders

Location of Screwfeeder

Screwfeeders are generally installed at the bottom of an inverted conical powder storage container called a hopper, and the powder is pushed out and discharged by the rotation of a screw. Since the powder is pushed by the screw, it can be transported even if the container is inclined upward to some extent.

Another feature of this system is that the powder is sealed inside the screw and the hopper in the front stage, allowing interprocess conveying with pressure differences such as atmospheric pressure and vacuum. Screwfeeders with high sealing performance are used in pneumatic conveying, where the powder is carried by the airflow in the piping.

What Is a Jack Screw ?

A jack screw is a screw-type jack that utilizes a screw screw.

A jack is a mechanism that can raise and lower heavy objects with little force, and the principle of the screw is used for the raising and lowering motion. Other types of jacks besides jack screws include hydraulic and other types of jacks.

In addition to lifting and lowering heavy objects, jack screws can also be used for moving, rotating, and positioning heavy objects. The jack screws are generally driven manually or by a motor, and are used for inspection and repair of vehicles and ships, as well as on construction sites and in factories.

They may also be used in place of hydraulic presses because of their extremely high output relative to input.

Uses of Jack Screws

Jack screws are used in steel material manufacturing sites, metal processing equipment, automotive parts manufacturing equipment, liquid crystal display and semiconductor washing machines, and substrate conveyors. Screw jacks are incorporated into large equipment, etc., from the equipment design stage.

Our familiar example is a large lift for vehicle inspection in an automobile repair shop. At construction sites, jack screws are sometimes used for height adjustment during the temporary assembly process before welding steel materials.

Principle of Jack Screws

The principle of the jack screw is based on the principle of the screw. Screws are used to convert rotational motion into linear motion for lifting and lowering. A reduction gear with a worm gear is used to drive the jack screw.

The worm refers to the input shaft, and the worm shaft has a spiral-shaped gear. A worm wheel is mounted on the output side to receive the rotation of the worm, and the worm wheel rotates in accordance with the rotation of the worm.

In this image, the worm is the male thread and the worm wheel is the female thread. When the male screw is turned, the screw is tightened with more force than the force of the male screw. The worm reduction gear converts this strong tightening force directly into high-torque rotational force.

Types of Jack Screws

There are two main types of jack screws, depending on the shape of the screw. There are two main types of screw jacks depending on the screw shape: trapezoidal screw type and ball screw type.

Just as a jack screw that has been tightened cannot be pulled out even if it is pulled as it is, a jack screw will not easily fall apart even if a load is applied to it. However, the stability of holding the position under load differs between the trapezoidal screw type and the ball screw type.

1. Trapezoidal Screw Type

The trapezoidal screw type has a self-locking function, so there is no need to worry about reversal (loosening of the jack) no matter where the screw is stopped. Trapezoidal jack screws do not require a separate brake mechanism.

2. Ball Screw Type

Ball screw jacks do not have a self-locking function and require a separate brake (e.g., a magnetic brake). However, the ball screw type can be raised and lowered more efficiently than the trapezoidal screw type, resulting in higher work efficiency and lower power costs.

How to Select a Jack Screw

Jack screws are both versatile and functional, and can be used in a wide variety of ways, depending on your ideas. However, care must be taken when selecting a jack screw for use as part of a large piece of equipment. In particular, if jack screws are not selected based on accurate design regarding “input,” they may be damaged.

Other Information on Jack Screws

Bevel Jacks

Jack screws use worm gears to convert rotational motion to lifting and lowering motion, but there are also bevel jacks that use bevel gears. Bevel gears are also called bevel gears, and have a shape of a cone with gears engraved on it.

In general, the difference between worm gears and bevel gears is the reduction ratio obtained and the transmission efficiency of the gears. The gear ratio of bevel gears is about 1~10, while worm gears can reduce the speed up to 100. The advantage of a worm gear is that a large reduction ratio allows a large lifting force to be obtained even with a small motor.

However, the transmission efficiency of worm gears is lower than that of bevel gears. Note that if the reduction ratio is large and the transmission efficiency of the gears is low, a longer lifting and lowering time is required, and more power is needed to operate the motor in the same time.