Buying a Lathe: Spindles and Tailstocks

A key consideration when buying a new turning machine involves its spindle. Here’s an overview of what you need to know.

 

After considering what sorts of workpieces your turning machine will need to handle, and taking a good look at tooling options, it’s a good time to cover what kinds of spindles lathes might have, and what factors are good to keep in mind when choosing a new machine.

 

Belt-Driven or Direct-Drive Spindles

The spindle on a turning center is either belt-driven or direct-drive. Generally, belt-driven spindles represent older technology. They speed up and slow down at a lower rate than direct-drive spindles, which means cycle times can be longer. If you’re turning small-diameter parts, the time it takes to ramp the spindle from 0 to 6,000 rpm is significant. In fact, it might take twice as long to reach this speed than with a direct-drive spindle.

 

A small degree of positional inaccuracy may occur with belt-driven spindles, because the belt between the drive and the positional encoders creates a lag. With integral direct-drive spindles, this is not the case. Ramping up and down with a direct drive-spindle happens at a high rate, and the positional accuracy also is high, a significant benefit when using C-axis travel on live-tooling machines.

 

A2 Spindle Noses

Lathes are designed to have an American Standard spindle nose on the front of the spindle motor. Tapered spindle noses come in various sizes to hold the chuck or threaded spindle mount. A2 and B2 are both short-taper spindles; the only difference between them is the method in which the chuck is mounted. Type L refers to long-taper spindles and Type D features a camlock mounting used on many engine-lathe spindles.

 

The good news is, your machine tool manufacturer has the spindle nose selection worked out based on the size of the chuck, diameter of barstock you intend to machine and the horsepower needed. The spindle nose will be properly sized for the machine.

 

Spindle Speeds, Horsepower and Torque

Today’s CNC lathes are designed for specific ranges of stock diameters. Basically, you buy a machine to cut a specific, maximum workpiece diameter. If you’re cutting 2-inch-diameter barstock, the machine will be designed for running small diameters using higher-speed, 6,000-rpm spindles, and with the right amount of horsepower and torque.

 

Generally, big lathes have high torque (twisting power) due to the weight of the mass spinning in the chuck. As a rule, the bigger the workpiece and the slower the spindle speed, the more torque required.

 

If the parts you are running require a machine with a 10-inch, big-bore chuck, the spindle will be designed to deliver slower speeds at more horsepower. This creates the torque to take bigger cuts for more stock removal. As the cutter gets closer to the center of the stock, the machine will automatically speed up to, say, 700 rpm to maintain the proper surface footage. Obviously, it doesn’t make sense to use a big-bore lathe to do small-diameter work.

 

The operation that typically requires peak horsepower is heavy-duty, inner-diameter work, such as using big drills to make holes in the barstock before finish-boring. In this case, Z-axis horsepower might be the limiting factor. For example, a 2-inch drill may require a 20-hp spindle motor to get the force needed to perform this operation.

 

Programmable Tailstocks

A built-in, numerically controlled tailstock can be a valuable feature for automated processes. A fully programmable tailstock provides more rigidity and thermal stability. However, the tailstock casting adds weight to the machine.

 

There are two basic types of programmable tailstocks—servo-driven and hydraulic. Servo-driven tailstocks are convenient, but the weight they can hold may be limited. Typically, a hydraulic tailstock has a retractable quill with a 6-inch stroke. The quill also can be extended to support a heavy workpiece, and do so with more force than a servo-driven tailstock can apply. This is an advantage if you’re machining a piece that weighs, let’s say, 2,000 pounds. Using the programmable tailstock to push the part helps support its weight in the chuck.

 

If you have any interest in tailstocks, I recommend that you can visit Spintop Machinery Co., Ltd... You can find kinds of high quality tailstocks such as faceplate tailstock, automatic tailstock, center tailstock, and manual tailstock there. Get more details, please do not hesitate to check out Topsdisk’s website and feel free to contact them.

 

 

Article Source: https://www.mmsonline.com/blog/post/buying-a-lathe-spindles-and-tailstocks

How to Choose a Suitable Kayak?

When you’re in the market for a new boat, there are many details to consider. First you need to decide what your goals are. Then you can start to narrow down your options. This precursory breakdown of the basic types of kayaks is a great place to start.

 

Recreational Kayaks

Recreational kayaks offer quick and convenient access to smaller lakes, rivers, and ponds. The combination of lightweight, durable materials and a manageable size makes these kayaks easy to handle both on and off the water. The large cockpit allows easy entry and exit, and the wide hull is designed specifically to offer exceptional stability. Adjustable outfitting and seats are designed with comfort in mind, and storage space provides room when you’re packing lunch or photography gear for the day.

 

Touring Kayaks

Touring kayaks have a hull design and extra length that allow for fast paddling and straight tracking across long stretches of open water and that provide the required stability needed when conditions become choppy. Storage compartments and hatches provide easy access and enough room for the necessary gear required for overnight or multi-day trips. A spray skirt may be worn to help prevent water from entering the kayak during inclement weather. Some models include either a rudder or a drop-down skeg system to improve maneuverability. Deck rigging provides secure attachment and quick access to items such as a map, an extra layer, or emergency gear.

 

Sit-on-Top Kayaks

Sit-on-top kayaks are designed for the paddler to sit on top of the kayak rather than inside as in a traditional kayak. This means the kayak is both stable and easy to get into and out of. Depending on the model, sit-on-tops can handle oceans, lakes, rivers, and streams, and their self-bailing design prevents the kayaks from filling with water if you encounter waves. Because sit-on-tops can be easier to get in and out of once you’re out on the water, you can bring an anchor and snorkeling gear along for swimming and checking out ocean life. Deck hardware provides a place for you to attach a seatback if the kayak doesn’t come with seat support.

 

Whitewater Kayaks

Whitewater kayaks are designed to provide the maneuverability necessary to navigate a river. Beginner paddlers can take advantage of kayaks designed with an emphasis on stability and forgiveness, while advanced paddlers can opt for a design that provides more performance to tackle bigger rivers or to pull the newest tricks. Of all the types of kayaks, whitewater kayaks deal with fastest-moving water, so it’s a good idea to take a class or go out with someone who’s experienced if you’re just starting out.

 

Fishing Kayaks

Fishing kayaks offer access to large lakes and coastal waters so you can quietly get to where the fish are. An emphasis is placed on stability so the user can focus on the task at hand: catching fish. Fishing kayaks can include accessible storage for a cooler, rod holders, paddle stows, dry storage, and beverage holders. Some fishing kayaks even have enough stability and space so you can stand to cast and raise and lower the seat position for better casting. Outfitting and seats are made to be comfortable so you can get out on the water early and stay until it’s late.

 

Inflatable Kayaks

Inflatable kayaks are a great way for both novice and experienced kayakers to enjoy anything from mellow flat water to exciting whitewater rapids. The self-bailing characteristics, high floatation, and overall design combine to provide a forgiving yet maneuverable kayak capable of making it across lakes or through the waves undaunted. In some models, there’s enough room onboard to accommodate gear for multi-day trips. And since they’re inflatable, you can transport these kayaks without needing a roof rack and store them easily in the corner of a room or garage.

 

Tandem Kayaks

Tandem kayaks come in models suitable for recreational, touring, and fishing, in sit-on-top, sit-in, and inflatable designs. Tandems are a great choice for friends, couples, and families and they’re a fun way to get the kids out on the water. Some have a removable front seat for solo paddling or bringing a water-loving dog along. Storage space on board provides room for gear, and adjustable seats and outfitting are designed to comfortably accommodate different sized paddlers. Whatever type of adventure you’re on, a tandem kayak will provide you and a buddy access to fun places on the water.

 

When you had a great kayak, you will need some high quality kayak deck hardware for it. At this moment, I will recommend that you can visit BroadPlast Industrial Co. – the company specializes in kinds of kayak fishing accessories. If you have any interest, please do not hesitate to contact with BroadPlast.

 

 

Article Source: https://www.backcountry.com/explore/how-to-choose-a-kayak

Locking Caster Wheels: Wheel Only or Swivel & Wheel?

There are two types of locking caster wheels available. The normal “Wheel Brake” will only stop the wheel from rolling when you depress the brake pedal. Our “Total Locking” Brake will lock both the wheel from rolling and the swivel from turning at the same time. Which brake you choose depends on what you are going to do?

 

You Need to Determine The Use of Your Caster Object.

 

If this is a decorative table (like a coffee table or a side table) and no one will be sitting at it, chances are you don’t need to have a brake on the casters. If this is a table for eating, working or the like, you should install at least two caster wheels with brakes.

 

So to further analyze the use:

 

If it is mandatory that the work surface not move when bumped, even with a repetitive motion like carving meat or sawing wood, a total locking brake is required.

 

A swivel caster will have the tendency to pick up a repetitive motion and the swivel will allow the object to start to “rock” along with that motion. If you lock the swivel along with the wheel using total locking casters, you stop that motion.

 

Much More Locking Casters

 

If you need more choice of locking caster wheels, come and visit Enjoying Go Co., Ltd. – they are the professional caster wheel manufacturer in Taiwan. You can find chair caster, design caster, braking caster, PU logo caster, industrial wheels, and much more products there. Now, check out Enjoying Go’s website and feel free to contact them.

 

 

Article Source: http://www.needcasters.com/locking-casters-ALP.htm

What You Need Pay Attention When Buy Edge Banding Machine?

You need pay attention to some item when buying edge banding machine. Let’s move on and see these tips!

 

  1. The matching of edge banding machine mainly depends on the shape characteristics of the workpiece to be machined, the type of edge sealing material, and the productivity and quality.

 

  1. Linear edge banding commonly used in office furniture and cabinets and other simple products, mainly considering the yield and some of the features or configuration:
  • The PVC or ABS scraper device for sealing material
  • Solid wood edge, need to add finishing knife and sanding device
  • In order to ensure the quality of the edge is not affected by low winter temperatures the best choice, edge banding machine equipped with far infrared preheating device
  • Additional configuration options: automatic tracking fillet trimming function, cutter device, etc.

 

  1. Automatic edge banding machine has many functions, mainly include: pre milling, glue, edge, blunt, rough trimming, refinement, tracking, scraping, polishing, slotting, which is characterized by high efficiency, automation, high precision, and beauty.

 

These features are also based on various types of division, some is relatively simple, with glue block, scraping, polishing, finishing, and other functions, some more comprehensive, almost all functions are, these are based on the customer base, to buy sheet.

 

  1. Edge curve can be processed in several ways. The curve edge banding machine in order to achieve a stable high level of quality, the NC machining center or NC edge machine, the two machines for some special surfaces edge can show special advantages, such as the edge with the length of the counter can make the smallest circumference of the gap edge docking that is more suitable for the manufacture of high-end furniture products. The difference between the two is that all processes from saw cut to the last parts forming the machining center, complete sealing and trimming process of CNC sealing machine dedicated only, using the processing center edge is the edge takes a larger total processing time, reduces the production efficiency.

 

Most manufacturers use manual edge machining curved parts, especially sheet metal parts within the arc, the maximum edge machine will decide by the wheel diameter can be processed Curve depth. Manual edge banding machine sealing curved edge has the advantages of simple operation, less investment. But due to edge by hand, quality is relatively high, mainly in the lower bonding strength, poor repeatability, high rework rate. At the same time manual sealing machine for thick edge banding commonly used (1.0-3.0mm) edge is relatively difficult but, to use some thin edge sealing strip is not visible on the component (0.4-1.0mm) can be made straight and curve processing.

 

  1. Generally, the use of manual edge banding machine and automatic linear edge sealing machine can meet the requirements of the general product, and the product will improve the efficiency and reduce the production cost.

 

  1. Automatic edge banding machine with preheating, glue, trimming, scraping, polishing and other functions, the current use of this structure there are several large manufacturers, some small manufacturers are eliminating the need for preheating, scraping and other functions, and even the polishing function is not.

 

  1. Listen to the manufacturer’s product introduction, from the machine specifications, performance, use, operation methods, prices, services, and so on, so that the machine needs to have a general perceptual knowledge.

 

  1. Look at the outside of the body in good condition. Check the parts, accessories are complete, look at the demonstration of the operation of the factory demonstration, look at the bonding effect, and master the operation of the machine Essentials.

 

  1. Open the machine to run the test. Check the power supply, gas supply line is smooth, sensitive; the main spindle is running smoothly, no noise.

 

  1. As can be seen from the above analysis, the purchase and use of edge banding machine should pay attention to product output and the ability to adapt to market demand, so as to select different levels of automation equipment and combinations.

 

If you need more information about edge banding machines, please do not miss Boarke Machine Co., Ltd. – you can find kinds of woodworking machines on their website. Now, contact with Boarke for more details!

 

Article Source: https://www.linkedin.com/pulse/what-you-need-pay-attention-when-buy-edge-banding-machine-wenlong-han

3 Types of Basin Wrenches Explained

Basin wrenches are plumbing instruments designed to remove nuts under sink basins or hard-to-reach spots. Nuts that connect the faucet to the sink are hard to reach and are, therefore, hard to remove. While other types of wrenches do not work on these types of nuts, basin wrenches can do the job easily.

 

This type of wrench can have either an adjustable self-tightening jaw or a fixed jaw that cannot be adjusted. This jaw is attached to the end of a torque tube that has a long handle. The long handle is intended to allow the user to reach hard-to-reach nuts under the sink. Since sinks usually are fastened to the faucet in deep recesses, loosening a nut may prove to be a difficult task when working with other types of wrenches. However, a basin wrench can reach a nut in such areas easily. It can grasp the nut and allow the user to either tighten it or loosen it. Below are three types of basin wrenches.

 

Fixed Basin Wrenches

Fixed basin wrenches have a fixed jaw that can only be used for certain types of nuts. It has two open-ended sockets. These sockets typically have a size of 22 mm and 15 mm. Fixed basin wrenches can be useful when you are working with uniformly-sized nuts frequently. These wrenches can also be purchased as a set with different sizes that can fit different types of nuts.

 

Adjustable Basin Wrenches

Some basin wrenches are also designed to be adjustable. Adjustable basin wrenches can fit through any size of nut. These wrenches have heads that tighten automatically as they wrap around nuts of different sizes. The main advantage of this type of basin wrench is its flexibility to adjust to any type of nut or coupling, making it a more preferred choice for consumers. In addition, it also saves money since you only need to buy one as compared to a set.

 

Adjustable basin wrenches are designed to have a head on one end that can be tilted up to 90 degrees. This allows the head to work on a nut in a vertical position while the handle is held in a horizontal position. There are two metal jaws on the head of the wrench. It is connected to the shaft by a spring-loaded hinge that allows it to grip all types of nuts with different sizes. For increased leverage, some models allow a bar to be added to the other end of the shaft. This proves useful for nuts that are situated in deeper crevices

 

When working with nuts, you can use both types of wrenches in order to have a working set that can fit any nut type or size. The cost of each individual basin wrench depends on the model and the manufacturer.

 

The Plastic Nut Basin Wrench

This type of wrench is a variation of the tool and is still called a basin wrench. This tool is used to remove or replace huge plastic mounting nuts used to secure furniture in place. This tool is actually a cylinder that has notches on one end designed to grab and turn plastic mounting nuts.

 

If you have any interest in adjustable basin wrench or other basin wrenches, please do not miss Maxclaw Tools Co., Ltd. – the company specializes in a variety of tube bending and cutting tools. Learn more details, welcome to check out Maxclaw’s website and feel free to contact them.

 

 

Article Source: https://www.doityourself.com/stry/3-types-of-basin-wrenches-explained

How to Choose Hiking Socks?

The average person takes 2,000 steps to travel one mile. Factor in the up and down of a hiking trail and the roots and rocks you’ll encounter along the way and that number only gets higher. With every step, the right socks play a critical role in keeping your feet comfortable and blister-free throughout your journey.

 

To choose the best socks for your hiking trip, it’s important to consider these four things:

 

  • Sock Height: The right height sock protects against abrasion with your footwear
  • Cushioning: The amount of cushioning affects comfort and warmth
  • Fabric: Most hiking socks feature merino wool as the primary ingredient, but some are made mostly from polyester or nylon
  • Fit: Be sure your socks fit well to fend off blisters

 

Hiking Sock Height

Hiking socks come in different heights, from so short that they don’t even show above your shoes to tall enough to nearly touch your knees. To choose the right height, take a look at your footwear. The higher the cuffs are on your boots or shoes, the taller you want your socks to be so they can protect your skin from rubbing directly against your footwear.

 

These are the four sock heights:

  • No-Show: These shorty socks provide very little protection against skin-to-boot abrasion, so they should only be worn with low-cut footwear, like trail-running shoes or light hiking shoes.
  • Ankle: Slightly higher than no-show socks, these will usually cover your ankle bone for a bit more protection. They are good for low- to mid-cut shoes and boots.
  • Crew: This is the classic height for a hiking sock. Crew socks typically land a few inches above your ankle bones to protect against abrasion with boots that have high cuffs. There’s no reason you can’t wear crew socks with low-cut boots or shoes, just know that the extra coverage could be warm on a hot day.
  • Knee-High: You’ll only find a few options in the knee-high category, and they’ll probably be for mountaineering. High socks protect against abrasion that big, burly boots can cause around your shins and calves. The coverage can also help keep your lower legs warm when you’re climbing through the night and crossing glaciers.

 

Hiking Sock Cushioning

The amount of cushioning a sock has given you an idea of how thick the sock is and how warm it will be.

 

The right amount of cushioning for you depends mostly on the types of trips you go on and the weather you expect. A bit of cushion can protect your feet during high-impact activities like running and backpacking, but keep in mind that thicker socks are warmer and can cause your feet to sweat. You may have to experiment to find the right balance of cushion-to-warmth that works for you. Having a variety of socks to choose from in your sock drawer is helpful.

 

The four types of cushioning:

 

  • No Cushioning: These ultralight socks are designed for use in hot weather. They are very breathable and have little padding. A handful of socks in this category are liner socks, which some hikers like to wear underneath a lightweight, midweight or heavyweight hiking sock. Liner socks were once very popular for their ability to wick moisture and to keep feet dry, but nowadays many hiking socks perform well enough to not require a liner sock. However, if you know liner socks work for you, you can certainly keep on using them.
  • Light Cushioning: Best for warm conditions, socks with light cushioning prioritize moisture wicking and comfort over warmth. They are relatively thin, but have some light cushioning in key places, like the heel and ball of the foot.
  • Medium Cushioning: These socks provide a good amount of cushioning in the heel and ball of the foot for hiking and backpacking and enough warmth for use in moderate to cold conditions.
  • Heavy Cushioning: These are generally the thickest, warmest and most cushioned socks available. They are made for long trips, tough terrain and cold temperatures. They’re often too thick and warm for backpacking journeys in warm weather, and are best used for mountaineering or on cold-weather backpacking trips.

 

Hiking Sock Fabric Type

 

Hiking socks are rarely made from a single fabric, but rather from a blend that creates the right balance of comfort, warmth, durability and fast drying. These are the most common materials you’ll find in hiking socks:

  • Wool: Wool is the most popular hiking sock material and the one that our footwear specialists recommend above all others. It regulates temperature well to keep your feet from getting sweaty and it provides cushioning. Another plus is that wool is naturally antimicrobial so it tends to retain smells less than synthetic fabrics. These days most socks are made of merino wool, which is essentially itch-free compared to older types of ragg wool socks. And most wool socks use blends of wool and synthetic materials for better durability and faster drying.
  • Polyester: Polyester is a synthetic material that insulates, wicks moisture and dries quickly. It is sometimes blended with wool and/or nylon to create a good combination of warmth, comfort, durability and fast drying.
  • Nylon: This is another synthetic option that is occasionally used as the primary material. It adds durability and can help improve drying times.
  • Silk: A natural insulator, silk is comfortable and lightweight, but not as durable as other options. It’s occasionally used in sock liners for reliable moisture wicking.
  • Spandex: Many hiking socks include a small percentage of spandex. This elastic material helps socks hold their shape and keep bunching and wrinkling to a minimum.

 

Hiking Sock Fit

Getting socks that fit right will help keep your feet comfortable on hiking trips. If your socks are too big they can have wrinkles that will rub and may cause a blister. Too small and they can create pressure points and sock slippage.

 

To find the right size, it’s helpful to know the size of your actual foot rather than your shoe size because sometimes people size-up in shoes, which can lead to buying socks that are too large.

 

If you need comfortable and suitable hiking socks, I recommend that you can visit Footland Inc. – the company specializes in kinds of waterproof socks and athletic socks. Get more details, please do not hesitate to check out Footland’s website immediately!

 

 

Tips:

How socks should fit: When you try socks on, look for a snug, but not overly tight fit. A sock fits properly when the heel cup lines up with the heel of your foot.

 

 

Article Source: https://www.rei.com/learn/expert-advice/backpacking-socks.html

Differences Between Woven & Non Woven Tote Bags

Personalized Non-Woven Tote Bags VS Promotional Non-Woven Totes

Personalized non woven tote bags are an economical choice when it comes to advertising. But if you’re not familiar with the terms “woven” and “non-woven,” choosing the right kind of promotional tote bag might be a bit confusing. Both materials make great imprinted tote bags, but they are distinctly different. Each type has unique benefits and characteristics.

 

The “Woven” Tote

As its name implies, “woven” totes are made from fabric that has been woven.  Weaving, of course, is the process of joining individual threads together at right angles to one another. Technically speaking, “warp” threads are laid out perpendicular to one another and a “weft” thread is run through them. Doing this over and over again creates one large piece of cloth.

 

There are all kinds of different weave styles. Most cloth is made using one of three main types of weaves: twill, satin weave and plain weave. Each style has its own advantages, with some types of weaves being better for certain kinds of applications.

 

Any fabric that is woven has some basic common characteristics. Woven cloth is flexible but not overly stretchy, so it is able to retain its shape well. Woven fabrics are relatively strong. These characteristics make them well-suited to machine washing, and anything made with woven cloth will stand up well when washed.

 

The “Non Woven” Tote

By now you have probably concluded that “non woven” cloth is fabric that is produced by some method other than weaving. In fact, “non woven” fabric can be produced mechanically, chemically or thermally (by applying heat). Like woven cloth, non woven fabric is made from fibers. However, the fibers are entangled together through whatever process is applied to them, as opposed to being woven together.

 

Non woven fabrics are versatile and have a much broader range of applications in industries like medicine. Non woven fabrics are commonly used in arts and crafts because they offer many of the same advantages of woven cloth but are less expensive. In fact, its economical price is one of the reasons that it is being increasingly used in the construction of tote bags. Its biggest disadvantage is that non woven cloth is not as strong as woven cloth. It is also less durable and will not stand up to being laundered in the same way that woven material will.

 

However, for applications like tote bags, non woven cloth is perfectly suitable.  Though not as strong as regular cloth, it is still strong enough when used in a tote bag to carry moderately heavy items like books and groceries. And because it is significantly cheaper than woven cloth, it is more affordable for use by advertisers.

 

If you need more choice of non woven tote bags, May Sun Jieh Enterprise Co., Ltd. will be your wisest decision. Now, check out their website and feel free to contact MSJ at 886-4-8527345 for more details!

 

Article Source: https://www.artpromos.com/articles/differences+between+woven+and+non-woven+totes.asp

What Is A Deep Hole Drilling Machine?

Do you know what a deep hole drilling machine is? Have you encountered this type of machine before?

 

A deep hole drilling machine is a mechanism used in the process of deep hole drilling. Commonly, it is used to produce deep, straight holes especially in metals particularly in the process of gun making. Deep hole drilling machines are the best mechanism to produce accurate holes necessary for most manufacturing processes.

 

Deep hole drilling is the machining of holes with a relatively large depth to a diameter ratio. Essentially, any hole deeper that ten times the diameter of the material should certainly constitute the process of deep hole machining. Specialized drilling technique should be considered in dealing with these processes.

 

Interesting to note as well: deep hole drilling machines were initially developed for manufacturing of guns and armaments. It was used to drill gun barrels. Throughout time, however, other industries also saw the potential of this tool. Nowadays, a lot of industries such as energy, oil and gas use gun drilling machines for resource exploration. It is also useful in the metal cutting industries, automotive, aircraft, petro-chemical industries. Gun drilling mechanisms are also found useful even in the medical field.

 

Construction of deep hole drilling machines is not only expensive but a difficult task as well. It requires specific planning and a variety of tools and machinery. Despite the difficulty of production, deep hole drilling machines are still seen as an important machine in most processes in different industries.

 

Depending on the required processes, there are different kinds of deep hole drilling machines. As a machinist, you have to consider the dimensions of the machine you are going to use, and the dynamics of the materials. In addition to the machine dimensions, power and dynamics, compatibility of these tools with various machines is primarily determined by the fluid delivery and chip exhaust systems. Achieving a perfect deep hole is not only reliant to the drilling machine but to a variety of mechanisms or systems. The two most common deep hole drilling systems enforced by different industries are gun drilling system and the BTA system.

 

Here is how a drill machine operates in the system of gun drilling: the drill is positioned and held in a spindle nose. It is then guided to a pre-started hole to avoid vibration of the drill. With this setup, the gun drill system operates in full accuracy. The high pressure coolant flushes the chips and lubricates the system. This operation produces the fine finish and burnished surface of the hole.

 

Important to note as well that, in using a drilling machine, safety precautions must be enforced. As with all power equipment, safety and security of you and your environment plays a crucial role. For instance, you must wear the correct and appropriate working clothes in using a deep hole drilling machine. An appropriate uniform lessens the possibility of an accident. Make sure also that you know how the machine works so that you can preempt an incident waiting to happen.

 

If you need more information about hole drilling machine, please choose Honge Precision Industries Corp. – the company’s deep hole drilling machine has wide range of model, suitable for various industrial part’s deep hole drilling. Due to its excellent quality, good management system and superior after-sales service, Honge has already enjoyed a long-lasting good reputation in the world market. Learn more details, feel free to contact Honge at 886-4-2496-0300.

 

 

Article Source: https://www.quora.com/What-is-a-deep-hole-drilling-machine

How To Choose A Motorized Valve?

Choose Valve Body:

Step 1: Determine The Working Pressure Of The Ball Valve

When the valve is closed, you must be sure that it is in the range of pressure.

 

Step 2: Determine The Temperature Range Of The Ball Valve

Valves are generally used to handle hot fluid or cold fluid. It is very important to determine how low or high temperature is the medium of the valve. There are different materials; such as ceramic, stainless steel, and PVC are used in the manufacture of valves. Each of them is applied to a certain temperature range.

 

Step 3:Determine What Kind of Fluid Through The Valve

Specific applications and fluid control systems are designed to handle different types of fluids. Some valves are used to deal with dams and reservoirs of hydroelectric power plants. There is also used for the normal flow of chemicals. There are a number of special designs, used for radioactive material, to ensure that the valve will not leak radiation.

 

It is also important to make sure whether the fluid is corrosive. These are helpful for choosing the body material. This step is also used to ensure the safety of the valve staff.

 

Step 4: Determine The Volume Of The Fluid

Different flow valve is designed for different purposes, is too thin or too thick are not suitable, so correct size of the valve is very important to choose the size of the valve.

 

Choose Actuator:

  • Torque Protection

To prevent motorized valve actuator in the middle of over torque, this function not only protects the valve, but also protects the actuator itself. The torque is set by the setting device.

 

  • Motorized Valve Position Limit Protection

Motorized valve actuator runs to close and open the limit position automatically stop (with a set of working modes).

 

  • Automatic Phase Adjustment

Electric actuator automatic detection of three-phase power supply terminal of the access, by the appropriate logic operation, the decision of the implementation of the operation of the mechanism when the AC contactor, in order to ensure the electrical connection to the right. If there is no automatic phase adjustment function may be due to damage to the valve and connection order error, Because of the automatic phase adjustment function, the actuator power supply wiring cannot consider the sequence.

 

  • Instantaneous Reversal Protection

When the motorized valve actuator receives commands for the opposite direction, it automatically adds a time delay, to prevent unnecessary wear of the valve shaft and gear box.

 

  • Power Shortage Phase Protection

Motorized valve actuator has a perfect power supply shortage protection function. It uses a combination of monitoring voltage and current method, It can’t only detect the phase of power supply when the motor is at rest, also can detect the power shortage in the operation of the motor. So that prohibits motor operation, to avoid the lack of phase operation caused by motor overheating Notice: The vast majority of the motor phase is in the motor running process.

 

  • Valve Stuck When The Protection

Whatever the motorized valve actuator to open or close the direction of action, the torque protection function is temporarily disabled within 5~10 seconds after the signal is sent to the motor. (If actuator doesn’t act in the time of the 5~10 seconds, Control circuit is cut off the power supply of the motor.) This feature can be achieved when the valve stuck solution card.

 

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Article Source: https://support.bacoeng.com/hc/en-us/articles/115015985047-How-To-Choose-A-Motorized-Valve