China Automatic sofa leg making machinewood stair machineautomatic wood handle making machine screw shaft gearbox

Condition: New
Range of Spindle Speed(r.p.m): 20000 – 24000 rpm
Positioning Accuracy (mm): 0.05 mm
Number of Axes: 3
No. of Spindles: Single
Working Table Size(mm): 2000×3000
Machine Type: CNC Router
Travel (X Axis)(mm): 2000 mm
Travel (Y Axis)(mm): 300 mm
Repeatability (X/Y/Z) (mm): 0.05 mm
Spindle Motor Power(kW): 3.0
CNC or Not: CNC
Voltage: 220V/380V
Dimension(L*W*H): 4000*1300*1680mm
Power (kW): 4.5
Weight (KG): 1850
Control System Brand: NC Studio, Mach3, ArtCAM
Warranty: 1 Year
Key Selling Points: Multifunctional
Applicable Industries: Building Material Shops, Manufacturing Plant, Home Use, Construction works , Advertising Company, Wood furniture factory
Machinery Test Report: Provided
Video outgoing-inspection: Provided
Warranty of core components: 1 Year
Core Components: Motor, PLC, Engine
Motor: Servo Motor
Spindle power: 4.5KW Cooling water system
Control system: DSP Control System
Working area: 2000 x 300mm
Max. Working Speed: 0~3000mm/m
Spindle Speed: 0~24000mm/m
Lathe Structure: Cast structure
X, Y Structure: Rack gear Transmission, Shaft Linear Bearings
Z Structure: Ball Screw, Shaft Linear Bearings
Packaging Details: Outside package : standard marine export plywood caseInner package: stretch film and plastic film for humidity PS: We can also make package according to your requests.
Port: qing dao

PRODUCTS DESCRIPTION 2571 Hot Sale Specially for the curved wood to build multifunctional cnc wood Lathe
Domestic initiative, patented products
APPLICATION: Regular and irregular staircases,stairway balusters,stairway newel posts;dining table legs;end table Legs;sofa table legs;bar stool legs;chair legs; Genron 100% Guaranteed Quality Single Axle Trailer Axles Without Brake System By Trailer Parts Factory Price chair arm posts;chair stretchers;bed rails, lamp posts,baseball bats and so on
Main work:Processing various irregular cylinder, crankshaft, irregular roman
Please see sample
1. Whole machine is welded with seamless steel structure, which is high temperature annealing and vibrating stress relief, machine weight up to 2500kgs to make sure the lathe body stabilized and never deformed.2. Special used for wood turning and wooden cylinder engraving, for irregular table legs , stair railing ( banisters) , etc. 3.Adopting advanced Tianjiao Control system which is easy for operating even without a computer4. Adopt ZheJiang TBI ball screw and CZPT helical square guide rail with high precision and longevity. 5. Compatible with several CAD/CAM design software6. Rotating speed can be adjusted by inverter also you can see speed on control cabinet panel7. One time tool setting to finish the whole work piece.8.Turning,broaching and engraving can be done with 1 machine by high speed

Max processing length2000mm (can custom longer size)
Max turning diameter300mm (can custom longer size)
Air Pressure8-10MPa
Power supplyAC 380V 3 phase 50HZ/60HZ(can custom 220V)
Max feed rate200cm/min
Min setting unit0.01cm
Transimission typeBallscrew for X,Y, Z axis
Main shaft rotating speed0-3000r/min
Motor power5.5kw
Control SystemTianjiao CNC control system
MotorJapan Servo motor
DriverServo driver
Xihu (West Lake) Dis. inverterXihu (West Lake) Dis. inverter
Drawing SoftwareAutoCAD for turning and professional 4 axis software
MACHINE ACCESSORIES Tianjiao Professional cnc Control system and panel
Cnc saw and blade for wood turning
4.5KW air cooling spindle
SAMPLES SHOW PACKAGING & SHIPPING Whole machine will be totally wrapped with cling plastic to avoid rusting during shipping,then fastened on the stronger iron steel tube pallet with wooden box for sea shipment. Inside Packing· Use professional Stretch Film to cover the whole lathe.· Alarm clock mechanism movement with BIP BIP sound sleeping mode clock hands available for choice Stretch film package with foam protection in each corner.Outside Packing· Sandard export wooden cases and pylwood cases.· Save space as much as possible for container loading.Transport· We support shipping, air, land and express.Packaging detailsoutside package : standard marine export plywood caseInner package: stretch film and plastic film for humidity PS: We can also make package according to your requests. OUR ADVANTAGES Tianjiao · Oman overseas warehouseOn March 19, 2571, the “Tianjiao · Oman overseas warehouse” established by HangZhou tianjiao company in Oman was officially put intooperation.Tianjiao company, Oman China wholesale city company together for the “Tianjiao · Oman overseas warehouse”. Oman Chinese wholesale city appearance “Tianjiao · Oman overseas warehouse” warehouse appearance “Tianjiao · Oman overseas warehouse” part of the warehouse What is “overseas warehouse”?“Overseas warehouse” Tractor Pto Driveshaft Driveline Hollow Spline Cardan Adapter Universal Joint Yoke Flexible Front Prop Rear CV Axle Shaft refers to the establishment in a foreign countryCross-border trade warehouse with integrated logistics service platformProvides the domestic warehouse to receive the hair the operation, the international section transportationWarehouse destination country customs clearance, storage, distribution and value-added services Tianjiao · Oman overseas warehouse “advantageTianjiao · Oman overseas warehouse “successfully landedIt fills the gap of “overseas end” logistics fulcrum platform of the company OUR SERVICE Pre-sale service 1.We offer free detailed quotation and product description. 2.24 hours online consultation. 3.Patient introduce and professional suggest buying selection. 4.Take pictures and make videoes with your done machine. 5.Strict test and debug machine quality before shipping.After-sale service 1.To provide clients with all aspects of after-sales service. 2.Our company promises: -One year free warranty for the whole machine , lifelong maintenance. -Customer response service time within 12 hours. -After the expiry of the warranty , we continue supply life-long maintenance services. -After the expiry of the warranty , still to provide a wide range of software and hardware support , enjoy free lifelong upgrades . And supply the parts at agent price. Warranty 1.The engineers of the original factory are available to do all kinds of the original factory are available to do all kinds of oversea machinery service. In some countries, we have oversea agents doing after-sale service in time and professionally. 2.we also offer 24 hours heart to heart service on-line or mobile. 3.Your technologists could attend the training in our factory and on-line which be free of charge. 4.The warranty of CNC lathe is 12 months, small broken parts could be freely replaced at any time, spare parts are delivered with machine for customer convenience. 5.We offer you best agent price and distributer price for our further cooperation. . 6.we can offer special custom-made according to your request. We also welcome you to our factory for visiting,and the visiting lines as below:Factory exact address:Xihu (West Lake) Dis. District,Fujia Industrial Area, Xihu (West Lake) Dis.a 8th Rd.,HangZhou City,ZheJiang Province,China.1.By air to ZheJiang International Airport, HangZhou or HangZhou Airport of ZheJiang ,China.2.By high-speed train to HangZhou or HangZhou Railway station of ZheJiang Province, Custom Made Precision Small Mini Stainless Steel or Brass Spur Gear Parts With ISO9001 Certificated China.

What Are Screw Shaft Threads?

A screw shaft is a threaded part used to fasten other components. The threads on a screw shaft are often described by their Coefficient of Friction, which describes how much friction is present between the mating surfaces. This article discusses these characteristics as well as the Material and Helix angle. You’ll have a better understanding of your screw shaft’s threads after reading this article. Here are some examples. Once you understand these details, you’ll be able to select the best screw nut for your needs.

Coefficient of friction between the mating surfaces of a nut and a screw shaft

There are two types of friction coefficients. Dynamic friction and static friction. The latter refers to the amount of friction a nut has to resist an opposing motion. In addition to the material strength, a higher coefficient of friction can cause stick-slip. This can lead to intermittent running behavior and loud squeaking. Stick-slip may lead to a malfunctioning plain bearing. Rough shafts can be used to improve this condition.
The two types of friction coefficients are related to the applied force. When applying force, the applied force must equal the nut’s pitch diameter. When the screw shaft is tightened, the force may be removed. In the case of a loosening clamp, the applied force is smaller than the bolt’s pitch diameter. Therefore, the higher the property class of the bolt, the lower the coefficient of friction.
In most cases, the screwface coefficient of friction is lower than the nut face. This is because of zinc plating on the joint surface. Moreover, power screws are commonly used in the aerospace industry. Whether or not they are power screws, they are typically made of carbon steel, alloy steel, or stainless steel. They are often used in conjunction with bronze or plastic nuts, which are preferred in higher-duty applications. These screws often require no holding brakes and are extremely easy to use in many applications.
The coefficient of friction between the mating surfaces of t-screws is highly dependent on the material of the screw and the nut. For example, screws with internal lubricated plastic nuts use bearing-grade bronze nuts. These nuts are usually used on carbon steel screws, but can be used with stainless steel screws. In addition to this, they are easy to clean.

Helix angle

In most applications, the helix angle of a screw shaft is an important factor for torque calculation. There are two types of helix angle: right and left hand. The right hand screw is usually smaller than the left hand one. The left hand screw is larger than the right hand screw. However, there are some exceptions to the rule. A left hand screw may have a greater helix angle than a right hand screw.
A screw’s helix angle is the angle formed by the helix and the axial line. Although the helix angle is not usually changed, it can have a significant effect on the processing of the screw and the amount of material conveyed. These changes are more common in two stage and special mixing screws, and metering screws. These measurements are crucial for determining the helix angle. In most cases, the lead angle is the correct angle when the screw shaft has the right helix angle.
High helix screws have large leads, sometimes up to six times the screw diameter. These screws reduce the screw diameter, mass, and inertia, allowing for higher speed and precision. High helix screws are also low-rotation, so they minimize vibrations and audible noises. But the right helix angle is important in any application. You must carefully choose the right type of screw for the job at hand.
If you choose a screw gear that has a helix angle other than parallel, you should select a thrust bearing with a correspondingly large center distance. In the case of a screw gear, a 45-degree helix angle is most common. A helix angle greater than zero degrees is also acceptable. Mixing up helix angles is beneficial because it allows for a variety of center distances and unique applications.

Thread angle

The thread angle of a screw shaft is measured from the base of the head of the screw to the top of the screw’s thread. In America, the standard screw thread angle is 60 degrees. The standard thread angle was not widely adopted until the early twentieth century. A committee was established by the Franklin Institute in 1864 to study screw threads. The committee recommended the Sellers thread, which was modified into the United States Standard Thread. The standardized thread was adopted by the United States Navy in 1868 and was recommended for construction by the Master Car Builders’ Association in 1871.
Generally speaking, the major diameter of a screw’s threads is the outside diameter. The major diameter of a nut is not directly measured, but can be determined with go/no-go gauges. It is necessary to understand the major and minor diameters in relation to each other in order to determine a screw’s thread angle. Once this is known, the next step is to determine how much of a pitch is necessary to ensure a screw’s proper function.
Helix angle and thread angle are two different types of angles that affect screw efficiency. For a lead screw, the helix angle is the angle between the helix of the thread and the line perpendicular to the axis of rotation. A lead screw has a greater helix angle than a helical one, but has higher frictional losses. A high-quality lead screw requires a higher torque to rotate. Thread angle and lead angle are complementary angles, but each screw has its own specific advantages.
Screw pitch and TPI have little to do with tolerances, craftsmanship, quality, or cost, but rather the size of a screw’s thread relative to its diameter. Compared to a standard screw, the fine and coarse threads are easier to tighten. The coarser thread is deeper, which results in lower torques. If a screw fails because of torsional shear, it is likely to be a result of a small minor diameter.


Screws have a variety of different sizes, shapes, and materials. They are typically machined on CNC machines and lathes. Each type is used for different purposes. The size and material of a screw shaft are influenced by how it will be used. The following sections give an overview of the main types of screw shafts. Each one is designed to perform a specific function. If you have questions about a specific type, contact your local machine shop.
Lead screws are cheaper than ball screws and are used in light-duty, intermittent applications. Lead screws, however, have poor efficiency and are not recommended for continuous power transmission. But, they are effective in vertical applications and are more compact. Lead screws are typically used as a kinematic pair with a ball screw. Some types of lead screws also have self-locking properties. Because they have a low coefficient of friction, they have a compact design and very few parts.
Screws are made of a variety of metals and alloys. Steel is an economical and durable material, but there are also alloy steel and stainless steel types. Bronze nuts are the most common and are often used in higher-duty applications. Plastic nuts provide low-friction, which helps reduce the drive torques. Stainless steel screws are also used in high-performance applications, and may be made of titanium. The materials used to create screw shafts vary, but they all have their specific functions.
Screws are used in a wide range of applications, from industrial and consumer products to transportation equipment. They are used in many different industries, and the materials they’re made of can determine their life. The life of a screw depends on the load that it bears, the design of its internal structure, lubrication, and machining processes. When choosing screw assemblies, look for a screw made from the highest quality steels possible. Usually, the materials are very clean, so they’re a great choice for a screw. However, the presence of imperfections may cause a normal fatigue failure.

Self-locking features

Screws are known to be self-locking by nature. The mechanism for this feature is based on several factors, such as the pitch angle of the threads, material pairing, lubrication, and heating. This feature is only possible if the shaft is subjected to conditions that are not likely to cause the threads to loosen on their own. The self-locking ability of a screw depends on several factors, including the pitch angle of the thread flank and the coefficient of sliding friction between the two materials.
One of the most common uses of screws is in a screw top container lid, corkscrew, threaded pipe joint, vise, C-clamp, and screw jack. Other applications of screw shafts include transferring power, but these are often intermittent and low-power operations. Screws are also used to move material in Archimedes’ screw, auger earth drill, screw conveyor, and micrometer.
A common self-locking feature for a screw is the presence of a lead screw. A screw with a low PV value is safe to operate, but a screw with high PV will need a lower rotation speed. Another example is a self-locking screw that does not require lubrication. The PV value is also dependent on the material of the screw’s construction, as well as its lubrication conditions. Finally, a screw’s end fixity – the way the screw is supported – affects the performance and efficiency of a screw.
Lead screws are less expensive and easier to manufacture. They are a good choice for light-weight and intermittent applications. These screws also have self-locking capabilities. They can be self-tightened and require less torque for driving than other types. The advantage of lead screws is their small size and minimal number of parts. They are highly efficient in vertical and intermittent applications. They are not as accurate as lead screws and often have backlash, which is caused by insufficient threads.

China Automatic sofa leg making machinewood stair machineautomatic wood handle making machine     screw shaft gearboxChina Automatic sofa leg making machinewood stair machineautomatic wood handle making machine     screw shaft gearbox
editor by czh 2023-03-20