8615064999677
william@creatallmachine.com
enLanguage

Pipe Threading Lathe

What is Pipe Threading Lathe

 

 

Pipe threading lathe is a type of lathe specifically designed for threading pipes. These machines are widely used in industries such as construction, plumbing, and manufacturing to create threads on pipes of different materials and sizes. The process of pipe threading involves cutting threads on the end of a pipe to allow it to be connected to other pipes or fittings. This ensures a secure and leak-proof connection, making it essential in various applications.

 

Benefits of Pipe Threading Lathe

Precision and Consistency
Pipe threading lathes ensure precision and consistency in creating threaded connections. The automated nature of these machines eliminates variations that may occur with manual threading, resulting in uniform threads that meet industry standards.

 

Time and Labor Efficiency
Pipe threading lathes significantly reduce the time and labor required for threading pipes. Manual threading can be a time-consuming and physically demanding task, especially for large-scale projects. Pipe threading machines streamline the process, enhancing efficiency and productivity.

 

Versatility
Pipe threading lathes are versatile tools that can thread pipes of various materials, including steel, stainless steel, and PVC. This adaptability makes them suitable for a wide range of applications across different industries.

 

Safety
Automated pipe threading lathes the risk of injuries associated with manual threading processes. By minimizing manual handling of tools and materials, these machines contribute to a safer working environment.

 

Thread Quality and Durability
Pipe threading lathes produce high-quality threads that enhance the durability of connections. Well-defined and accurate threads ensure a tight and secure fit, reducing the likelihood of leaks or failures in the threaded joint.

 

Why Choose Us

Our Services
Experienced after-sales team. Online after-sales service provides fast response. Professional technicians provide 24-hour remote video guidance.

 

Production Equipment
The company's main products include pipe threading lathes, CNC pipe threading lathes, CNC inclined bed pipe threading lathes, CNC lathes, spindle boring lathes, CNC spindle boring lathes, CNC automatic pipe cutting machines and other 12 series.

 

Experienced
Our factory has dozens of advanced mechanical processing equipment and nearly 100 experienced technical processing personnel, with an annual production capacity of more than 500 lathes, and has strong product research and development capabilities and production and manufacturing capabilities.

 

Professional Customization Service
Rich accessories selection services will meet customers' various production and processing needs. Strict factory inspection process. Ensure the high quality of each machine tool. Strong production capacity. Able to provide goods to customers quickly and in a timely manner.

 

How Does a Pipe Threading Lathe Work?

 

The working principle of a pipe threading lathe mainly depends on the design and operation process of the machine tool. This type of lathe usually has a large through hole on the spindle box. After the workpiece passes through the through hole, it is clamped by two chucks located at both ends of the spindle for rotational motion.

 

There are generally two ways to feed the tool: one is similar to an ordinary lathe, where the lead screw drives the slide and tool holder located in front of the bed; the other is that the external thread cutting head of the flat comb cutter on the slide located in the center of the bed cuts into the workpiece and moves forward accordingly. Some machine tools for processing long pipes are also equipped with a workpiece support device to ensure stable and safe processing of the workpiece.

 

Types of Pipe Threading Lathe

 

Ordinary pipe threading lathe

Ordinary pipe threading lathes usually use manual or semi-automatic operation, which is suitable for small batch or diversified production needs. This type of lathe is suitable for production environments that do not require particularly high production efficiency and automation.

CNC pipe threading lathe

CNC pipe threading lathe uses digital control technology to operate the lathe, which has higher production efficiency and precision. CNC pipe thread lathe can better meet the needs of large-scale production, and through programming control, it can achieve more complex and precise processing operations.

productcate-800-800

 

What to Consider When Choosing Pipe Threading Lathe

Pipe Size: The pipe threading lathe you choose should be capable of handling the size of the pipes you will be working with. Determine the maximum and minimum pipe sizes you will need to thread, and choose a machine that can accommodate those sizes.

 

Type of Pipe: Different materials such as steel, copper, and PVC require different threading methods, tools, and equipment. Ensure that the lathe machine you select is designed to work with the type of pipe material you'll be threading.

 

Threading Accuracy: If you require high levels of accuracy and precision in your threading projects, look for a machine that offers precise adjustments and control over the threading process. Some machines offer digital displays and other features that help ensure consistent and accurate results.

 

Machine Capacity: The capacity of the pipe threading lathe is an essential factor to consider. Check the motor power, spindle speed, and other features that affect the machine's performance and capacity.

 

Budget: Finally, consider your budget when choosing a pipe threading lathe. Look for a machine that offers the features you need at a price you can afford.

 

What Materials can be Threaded Using a Pipe Threading Lathe?
 

Steel

Steel is one of the commonly used materials for manufacturing threaded. It has good strength and wear resistance and is suitable for manufacturing high-demand threaded, such as automobile engines, machine tools, etc.

Cast iron

Cast iron has certain plasticity and toughness and is suitable for manufacturing medium and low-demand threaded, such as pipes, flanges, pump impellers, etc.

Aluminum alloy

Aluminum alloy has light weight and excellent thermal conductivity and is suitable for manufacturing precision threaded, such as mobile phone housings, aircraft parts, etc.

Copper alloy

Copper alloy has excellent electrical conductivity and wear resistance and is suitable for manufacturing high-speed rotating threaded, such as motor rotors, generator rotors, etc.

 

How do you Measure the Threads Produced by a Pipe Threading Lathe?
 

Thread Go/no Go Gauge Detection Method
According to the Taylor principle, the traditional GO/NO GO test method can only meet the minimum requirements of thread testing. The advantages of this method are fast, economical and practical.

 

Micrometer Measurement
The thread micrometer is a special thread measuring tool. The thread micrometer has a special measuring head. The shape of the measuring head is made to match the thread shape. Each pair of measuring heads can only be used to measure threads with a certain pitch range.

 

Thread Three-stitches Method
Three-stitches are a set of three measuring needles with the same diameter determined to measure the pitch diameter of the thread by indirect method. By placing three threaded measuring needles into the tooth sockets on both sides, using a micrometer, length measuring machine, etc. to read the M value. And calculating the thread single pitch diameter by the functional relationship between the pitch diameter of the thread and the diameter of the measuring needle/the profile angle and the pitch.

 

Image Measurement Method
The commonly used instruments for the image measurement method of threaded workpieces are Image measuring machine, Video measuring machine etc., which use image recognition to measure the parameters of threaded workpieces.

 

Stylus Scanning Measurement Method
High-precision intelligent profile roughness measuring machine continuously scans and measures the upper and lower profile surfaces of the thread axial section, and then calculates the pitch, tooth half angle, taper of the thread and other parameters according to the obtained profile information. It can not only measure common cylindrical threads and conical threads, but also measure large-slope threads such as trapezoidal threads, buttress threads, and sawtooth threads, and multi-thread threads. It can also easily measure the long oil pipe thread and long stroke screw.

 

The Main Difference Between a Pipe Threading Lathe and an Ordinary Lathe
 

Machine tool structure

The structure of a pipe threading lathe is also different from that of an ordinary lathe. The spindle of an ordinary lathe is horizontal, and the workpiece is fed on the lathe bed, while the spindle of a pipe threading lathe is vertical, and the workpiece is fed on the column clamp. At the same time, compared with an ordinary lathe, a pipe threading lathe has a special mechanism for processing pipes added to the bed.

Machine tool performance

There are also differences in the performance of a pipe threading lathe and an ordinary lathe. Ordinary lathes have high positioning accuracy, especially when the workpiece length is short, which can ensure the roundness and straightness of the workpiece. Since the workpiece to be processed on a pipe threading lathe is a pipe, problems such as distortion and deformation of the workpiece need to be considered. Therefore, the spindle, clamping device and feeding mechanism of the pipe threading lathe need to consider factors such as the size and rigidity of the workpiece.

 

Application of Pipe Threading Lathe

Oil and Gas Industry

Pipe threading lathes are extensively used to thread pipes for drilling and transportation purposes, ensuring secure and leak-proof connections.

Plumbing and Heating

In residential and commercial plumbing, pipe threading lathes create precise threads on pipes used for water, gas, and heating systems, ensuring reliable connections.

Construction

Threaded pipes are essential in construction for creating frameworks and structural supports, with pipe threading lathes providing the necessary threading accuracy and strength.

Manufacturing

Various manufacturing processes require threaded pipes for machinery, equipment, and systems, where pipe threading lathes deliver consistent and high-quality threads.

 

How To Explain The Spindle of a Pipe Threading Lathe

 

The spindle part of the pipe threading lathe is one of the important components of the machine tool, including the support of the spindle and the transmission parts installed on the spindle. Due to the high speed, high power, and manual adjustment of CNC machine tools during processing, good rotation accuracy, structural rigidity, shock resistance, thermal stability, wear resistance and accuracy retention of components are required. In order to realize automatic loading and unloading and clamping on the spindle, there must be an automatic clamping device for the tool, a spindle stop device and a clear cutting device.

 

The front support of the pipe threading lathe spindle adopts double-row cylindrical roller bearings with inner tapered bore to bear the radial force, which improves the radial rigidity of the spindle and the rotation accuracy of the spindle. Two thrust ball bearings are used to bear the axial force and reduce the axial movement of the spindle. Momentum improves the axial rigidity of the spindle. The rear support adopts double row cylindrical roller bearings with inner tapered bore, which play a role of radial support.

 

Components of Pipe Threading Lathe

Spinde

Responsible for rotating the tube and driving the turning.

 

Chuck

A clamping device attached to the headstock that holds the pipe securely in place during the threading process.

 

Tool Holder

A part for placing the turning tool, which can be adjusted up and down and moved horizontally.

 

Tailstock

Positioned opposite the headstock, it supports the end of the pipe and can be adjusted to accommodate different lengths of workpieces.

Gearbox

Contains various gears to adjust the speed and torque of the lathe, allowing for different threading speeds and thread pitches.

Feed mechanism

Controls the feed speed of the tube at the turning tool to ensure processing accuracy and surface quality.

Control system

Includes electrical control and program control, which are responsible for adjusting the operation and working parameters of each mechanism.

 

How to Maintain Pipe Threading Lathe
 
Regular Inspection And Cleaning

Every machine and component of the pipe threading lathe should be inspected and cleaned every day to ensure that there is no dust, dirt, lubricating oil and other debris on the surface of the lathe, and at the same time confirm whether its internal and external transmission, electrical, hydraulic, pneumatic and other equipment are normal. When the machine tool is operated for a long time or idle, the lathe should be inspected and maintained regularly to ensure the consistency of the lathe working parameters and prevent failures caused by factors such as workpiece quality.

Keep The Lathe Running Stably

All power, air supply and hydraulic supply systems of the pipe threading lathe must be checked and "preheated" before starting, and wait until they work stably before operating. When turning off work, the lathe should be turned off, and the bed and work surface in the lathe should be confirmed, and wiped clean with a soft silk cloth. At the same time, it is necessary to ensure that the environmental facilities, sorting tools, cutting tools, etc. in the industrial warehouse are in normal use.

Lubrication

The pipe threading lathe lubrication should be replaced according to the standards and operating methods to avoid using outdated, impure, messy or low-quality oil. ‌For hydraulic systems or other equipment, the lubricating oil should be replaced regularly to avoid lathe failures due to wear of shafts, bearings and other parts caused by poor lathe lubrication.

Check The Electronic Control System

The pipe threading lathe electronic control system should be inspected and maintained regularly, and the inspection results should be recorded in the log book to avoid failures and other adverse conditions. ‌All instruments of the pipe threading lathe should be installed and adjusted according to the specific operating instructions, and the instruments should be installed in a safe place to avoid collisions or strong damage with lathe workpieces or other tools.

 

The Operating Precautions

 

 

Non-staff operation of the machine is strictly prohibited.

 

It is strictly forbidden to touch the tool, the rotating part of the machine tool or rotating workpiece during operation.

 

Is not allowed to use the emergency stop, such as in case of emergency with the button after the stop, should be in accordance with the provisions of the machine tool before starting, re-check again.

 

Not allowed to step on the lathe’s guide surface, screw, light bar, etc., except for the provisions are not allowed to use the foot instead of the hand to operate the handle.

 

The inner wall has a sand hole, shrinkage or keyway parts, not allowed to use the triangle scraper scraping the inner hole.

 

After the pneumatic hydraulic chuck compressed air or liquid pressure must reach the specified value, before use.

 

Turning slender workpiece, in the bed before the two sides of the extension length of more than 4 times the diameter, should be used in accordance with the provisions of the process. Centre frame or follow force frame support. In the back of the bed extended, should add protection devices and warning signs.

 

When cutting brittle metals or cutting easy splash (including grinding), protective stoppers should be added and the operator should wear protective glasses.

 

 
FAQ
 

Q: What are the safety precautions for pipe threading lathe?

A: Never wear loose-fitting clothing around the machine, and insure that long hair cannot come in contact with rotating parts of the machine or work piece. Keep sleeves buttoned, shirts tucked in and hair retained. Never wear any necktie that does not have a safety breakaway around rotating machinery.

Q: What is the standard for pipe threading lathe?

A: Standard B1. 20.1 covers threads of 60- degree form with flat crests and roots in sizes from ¹⁄16 inch to 24 inch Nominal Pipe Size. The taper rate for all NPT threads is ¹⁄16 (³⁄ inch per foot) measured by the change of diameter (of the pipe thread) over distance.

Q: How do you maintain a pipe threading lathe?

A: At least once a day, clean chips and other waste material accumulated on the tray filter. Empty oil tank at least once a week, filter it and check viscosity. Clean tank and filters. After viscosity check, return oil to tank and, if necessary, fill it up with oil threader until the aspiration filter is imersed.

Q: What are the main components of a pipe threading lathe?

A: The main components of a pipe threading lathe include the headstock, chuck, tool post, tailstock, bed, lead screw, carriage, gearbox, coolant system, and control panel.

Q: What are the typical sizes of pipes that can be threaded on a lathe?

A: Pipe threading lathes can accommodate a wide range of pipe sizes, typically from 1/8 inch to 12 inches in diameter. The exact range depends on the specific model and capacity of the lathe. Smaller lathes are suitable for residential plumbing and light industrial work, while larger lathes can handle heavy-duty applications in oil and gas or construction industries.

Q: What materials can be threaded using a pipe threading lathe?

A: Pipe threading lathes can thread a variety of materials, including carbon steel, stainless steel, brass, copper, aluminum, and certain plastics. The choice of material affects the threading process, as different materials have varying hardness and ductility.

Q: How do you set up a pipe threading lathe?

A: Secure the Lathe: Ensure the lathe is properly anchored and level.
Select the Die: Choose the appropriate threading die or cutting tool for the pipe material and desired thread.
Install the Pipe: Secure the pipe in the chuck, making sure it is aligned with the tailstock.
Adjust the Tool Post: Position the tool post to the starting point of the threading operation.

Q: How do you choose the right threading dies for a pipe threading lathe?

A: Select dies suitable for the pipe material. Choose dies that match the required thread type and size. Ensure high-quality, sharp dies for clean and accurate threading.

Q: What is the difference between manual and automatic pipe threading lathes?

A: The main difference between an automatic pipe threading lathe and a manual pipe threading lathe lies in the control of the cutting process. Automatic pipe threading lathes are controlled automatically, often through software commands, while manual pipe threading lathes require direct control by an operator.

Q: How do you align a pipe for threading on a pipe threading lathes?

A: Ensure the pipe is firmly clamped in the chuck without excessive force that could deform it. Adjust the tailstock to support the opposite end of the pipe, ensuring it is centered and aligned. Use a dial indicator or similar tool to check for runout and adjust the chuck or tailstock as necessary.‌

As one of the most professional pipe threading lathe manufacturers and suppliers in China, we're featured by quality products and competitive price. Welcome to buy cheap pipe threading lathe for sale here from our factory. Contact us for quotation.

twin spindle lathe with live tooling