Manufacturing long threaded parts: precision and automation for industrial series
In many industrial sectors, long threaded parts are essential components for the proper functioning of equipment. Tie rods, shafts, studs, threaded rods, or connecting parts must meet high precision requirements while being produced in a reliable, repeatable, and competitive manner.
Manufacturing a long threaded part is one thing. Producing a series of identical parts, from a few dozen to several thousand units, with the same level of precision is another.
At Massard, this requirement is based on a combination of precision bar turning expertise, automation of production resources, and quality control, in order to guarantee compliant parts throughout the manufacturing series.
Key takeaways
- Massard produces long threaded parts from Ø3 to Ø35 mm and up to 2,800 mm, depending on the manufacturing configurations.
- Productions range from 10 to 50 parts in small series, from 50 to 2,500 parts in medium series, and over 2,500 parts for large series.
- The material, the type of threading, the desired tolerances, and the one-off or recurring nature of the manufacturing are part of the information studied to define the production solution.
- Threads can be metric, Gas, or American, depending on the part's requirements.
- The part's intended use, the potential presence of a coating, and whether manufacturing is one-off or recurring are all factors studied to define the production solution.
Summary
Massard manufactures long threaded parts up to 2,800 mm and from Ø3 to Ø35 mm, from small to large series. Manufacturing is studied according to the use of the part, the material, the type and process of threading, any potential coating, as well as the volume to be produced. The automation of production resources makes it possible to meet the precision and repeatability requirements of technical series.
Why do long threaded parts represent a real industrial challenge?
The longer a part is, the more mechanical constraints increase during its machining.
Phenomena such as bending, vibrations, or deformation can quickly impact the quality of the threading, the concentricity of the different diameters, or the straightness of the part.
Added to this are the requirements for surface finish and dimensional tolerances, which must be maintained over the entire length of the component.
The objective is therefore not only to manufacture a long part but to reproduce the exact same quality across the entire production run.
Automating to guarantee series consistency
Automation today plays a central role in the manufacture of long threaded parts.
It does not only consist of increasing production rates. Above all, it allows for the stabilization of the industrial process and the limitation of variations that may appear during long series.
At Massard, equipment is organized to ensure continuous production while maintaining a high level of precision.
This approach offers several advantages:
• reduction of handling between operations;
• better stability of settings;
• limitation of error risks;
• increased repeatability of fabrications;
• optimization of production lead times.
For industrial clients, this mastery ensures supply security, limits rework, reduces non-compliance risks, and guarantees consistent quality across all recurring productions. It also helps better control manufacturing lead times and costs.
Production Means Adapted to Long Parts
To achieve this, the workshop uses CNC sliding headstock lathes, which are particularly suited to this type of geometry.
Massard relies notably on a fleet of CNC lathes allowing for the production of parts from Ø3 to Ø35 mm, over lengths that can reach 2,800 mm depending on the manufacturing configurations.
The main equipment dedicated to these productions includes notably:
• TORNOS SIGMA 32;
• TORNOS GT 26;
• TORNOS DT 13;
• MANURHIN KMX;
• MANURHIN EVO 832.
These machines ensure excellent machining stability while integrating several successive operations within a single manufacturing cycle.
Several operations integrated into the same process
One of the main benefits of CNC turning centers is the ability to perform several operations in a single setup: turning, threading, milling, drilling, or even transverse tapping. This integration limits the risks of positioning errors and guarantees better overall precision of the part.
Depending on project characteristics, a single manufacturing process can integrate turning, drilling, cross-drilling, tapping, milling, the creation of flats, keyways, frontal grooves, knurling, and threading. This integration of operations limits handling, improves overall part precision, and contributes to the stability of series production.
Machined threading or rolled threading: choosing the right solution
Not all long threaded parts require the same threading process. Depending on the desired performance, Massard can implement machined threading or rolled threading. Rolling notably offers several advantages for certain applications:
• excellent concentricity between the different machined diameters;
• very good cylindricity;
• high surface finish quality;
• excellent repeatability;
• improvement of the mechanical performance of the thread.
The Massard teams also check if a coating must be applied after manufacturing, on the part itself or on the complete assembly. This information is taken into account in the study of the need and the requirements associated with the part.
When studying a long threaded part, three technical points in particular must be validated:
- the choice between rolled or cut threading,
- the material used,
- and the type of threading to be produced (metric, Gas, American, etc.).
These elements make it possible to define the appropriate manufacturing process.
Long Threaded Parts for Demanding Applications
The intended use of the part is among the information studied by Massard during a client request. It helps better define the expected characteristics of the part based on its application.
Long threaded parts are used in numerous industrial applications where assembly reliability is essential.
Massard manufactures industrial studs, tie rods, operating shafts, technical screws, valve stems, connecting rods, and many custom-designed threaded parts. These components are intended for various sectors such as general mechanics, energy, industrial equipment, hydraulics, and special machinery.
Mastering precision over the entire length of the part
As lengths increase, precision requirements become even more important. The quality of a long threaded part is not limited to its threading. It also depends on many dimensional parameters:
• straightness;
• concentricity;
• cylindricity;
• coaxiality;
• surface finishes;
• dimensional tolerances.
All of these characteristics must remain compliant throughout production to guarantee the proper functioning of the final assembly.
Quality control at the heart of the process
Producing technical series involves regularly checking the characteristics of the parts. At Massard, quality control is integrated into the production process, with specific means adapted to long parts (profile projector, micrometers, thread gauges, etc.).
This approach is part of an organization certified ISO 9001 and ISO 14001, guaranteeing continuous improvement of production and control processes.
An organization designed for series production
Beyond technical means, the success of a production also relies on industrial organization. For this type of part, Massard operates on different production volumes: from 10 to 50 parts for small series, from 50 to 2,500 parts for medium series, and over 2,500 parts for large series. The manufacturing organization is adapted to the requested volume and the one-off or recurring nature of the production.
The mastery of settings, the experience of the teams, the stability of the processes, and the coordination of the different stages make it possible to produce homogeneous series while respecting quality, deadline, and traceability requirements.
This organization thus allows the production resources to be adapted to the characteristics and volumes of each project.
Entrusting your long threaded parts to a specialist means benefiting from a global approach, from the study of the need to the delivery of the series. Do you need to manufacture long threaded parts to drawing or in series? Contact the Massard teams to study your project and obtain a personalized quote.
The manufacturing of long threaded parts requires perfect mastery of bar turning, threading operations, and quality control.
Thanks to its experience in manufacturing mechanical fasteners and technical components, Massard supports industrial clients in producing series that meet their dimensional, mechanical, and functional constraints.
Are you looking for a partner capable of manufacturing custom-designed or series long threaded parts? Contact the Massard teams to discuss your project and get a personalized quote.
Massard, specialist in long threaded parts and technical series
Massard supports industrial professionals in the manufacture of long threaded parts, from Ø3 to Ø35 mm and up to 2,800 mm, in small, medium, or large series.
Thanks to its CNC sliding headstock lathes, its expertise in precision bar turning, rolled or cut threading, and quality control, the company adapts the manufacturing process to the constraints of each part and each set of specifications.
Each project is studied according to the use of the part, the material, the type of threading, any potential coating, and the volume to be produced, in order to guarantee a reliable and repeatable industrial solution.
What to remember
The manufacturing of long threaded parts relies on a balance between precision, process stability, and repeatability. The choice of threading process, material, and production means must be adapted to the final use of the part and the volume to be produced. With capabilities up to 2,800 mm and an organization adapted to small to large series, Massard supports industrial clients in producing technical parts that comply with their specifications.
Need to produce a series of long threaded parts?
Are you looking for a partner capable of producing long threaded parts to drawing, from a few dozen to several thousand units?
The Massard teams study your project based on the use of the part, the material, the type of threading, any potential coatings, and the production volume in order to define a solution adapted to your technical constraints.
FAQ – Frequently asked questions about long threaded parts
Up to what dimensions can Massard manufacture long threaded parts?
Massard produces parts from Ø3 to Ø35 mm in lengths that can reach up to 2,800 mm depending on the manufacturing characteristics.
What types of parts are produced by Massard?
The company manufactures notably studs, tie rods, operating shafts, technical screws, valve stems, and connecting rods.
The study takes into account the material, the dimensions, the tolerances, the type of threading desired, the potential presence of a coating, as well as the one-off or recurring nature of the manufacturing. The volume of parts to be produced also allows the production organization to be adapted.
What is the difference between rolled threading and machined threading?
Machined threading is obtained by material removal, while rolled threading is achieved by material deformation. The choice depends on the expected mechanical performance, the dimensions of the part, and the constraints of the application.
Other readings that may interest you
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- Production of rolled threads: better mechanical strength for your fasteners
- Materials machined at Massard: a complete range from Cupro to special stainless steel
- Bar turning of long parts up to 2800 mm | Massard
- Rolled threading vs machined threading: how to choose? | Massard
- Bar turning of long parts up to 2800 mm | Massard
- The advantages of bar turning for the production of mechanical parts: Massard & Cie expertise
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