Thanks to its reduced size, flexibility and precision, the Supercombinata series can perform jobs directly on site, by reducing the time and costs of a traditional repair. It is reliable, powerful and easy to use.
Our portable line boring machines Supercombinata allow to make on-site jobs, reducing downtime and freight costs. For years, they have been successfully used in several fields: from Windpower, Railway, Hydropower, Earthmoving, Naval, Nuclear, Oil & Gas,
How to choose the best portable line boring machine? And what features to look for to make the best investment? Here is a short buying guide.
The purchase of a line boring machine is based on the need to perform machining of cylindrical holes in very special circumstances. As this is an important investment, some aspects should be considered before the purchase. Simply focusing on price is the wrong path that many users take. Instead, it is necessary to evaluate the technical characteristics and the technological contents of the equipment proposed by the various manufacturers in order to correctly evaluate the quality/price ratio.
The first evaluation to do in order to understand how to choose the best portable line boring machine is related to the type of machining that will be carried out. Some portable line boring machines are multifunctional machines, which means that the functionality of the machines can be extended, with supplied elements and with optional accessories. Therefore, it will be necessary to evaluate what is included in the standard equipment and what would be the cost of the optionals in the event that the equipment should also be used for external boring, facing of orthogonal planes, creation of seats for Seeger rings, threading, tapping, drilling, etc...
Each portable line boring machine model operates in a well-defined diameter range.
The performance and the quality of the machining that can be obtained are related essentially on the mechanical quantities that characterize each specific model, namely the cutting speed and the torque applied on the boring bar.
Torque and rotation speed are mechanical quantities that, together with other main cutting parameters, are descriptive of the machining process by chip removal.
The torque provided at the boring bar, parameter to be evaluated during the purchase, determines the cutting force at the cutting head, while the rotation speed determines the cutting speed. For each diameter to be machined, for maximum performance and good machining quality, you should have the required cutting force at the right number of rotations.
Large diameters require low speed and high cutting force, whereas smaller diameters require higher speed and lower cutting force.
The best answer to this specific need is the mechanical gearbox, able to maximize the power delivered by the engine, thanks to the possibility of working with the right gear for each working range.
The gearbox allows to make the best use of the power developed by the motor with maximum flexibility of use, "adapting" maximum torque and speed to the specific needs of the machining.
The boring bar not only performs the rotation motion, but also moves longitudinally through the feed system. The difference here is the stroke: having a wide stroke by steps of more than 300 mm allows you to perform machining in a single stage.
Speaking about the boring bar, it is interesting to notice that the various manufacturers provide boring bars of different length, to be joined if necessary. The presence of the joint determines less precision and stiffness of the boring bar itself. Solutions with fewer joints or couplings should be preferred.
It is the most iconic and versatile product of the Supercombinata Series and covers the processing range from Ø 42mm to Ø 400 mm.
Ideal for working diameters up to 250mm, it is the most used equipment in the earthmoving sector and allows to carry out machining starting from Ø 32 mm. It is sold with a reduction kit chosen by the end user, which extends the range of use to diameters less than Ø 32 mm.
The Supercombinata EASY Compact and SC2 Compact are conceived to perform machining in extremely small spaces. The SC2 Compact, after its initial success in the United States, is available also in Europe and worldwide. The two models differ from the processing ranges:
Supercombinata Easy Compact: from Ø 42 mm up to Ø 250 mm with Ø 40 mm boring bar
Supercombinata SC2 Compact: from Ø 62 mm up to Ø 250 mm with Ø 60 mm boring bar
Both portable line boring machines share the same dimensional features.
We recommend the SC2 Compact for machining where higher flexural stiffness is required.
It differs from the Supercombinata SC1 for the Ø 60 mm boring bar, for the machining range from Ø 62 mm up to Ø 600 mm and for greater torque available on the boring bar.
This equipment is recommended for use in shipbuilding and heavy metal carpentry.
Our portable line boring machine equipped with the most powerful motor of the range, is equipped with a Ø 60 mm boring bar and allows to carry out machining in the range from Ø 62 up to Ø 800 mm, extendable to Ø 1200 mm with extra kit.
This equipment is recommended for use in mining, shipbuilding, heavy metal carpentry and oil & gas industry.
Find the most suitable portable line boring machine for your needs, visit our website and find out more, visit our website and discover more.
Giuseppe Simmaco, Marketing Manager
Overlay welding: how does it work, different kind of overlay welding, the benefits of this execution and how to work safely.
Overlay welding is a generation method that is used in the repair or modification of existing components and in surface treatments. In every industrial sector there are parts subject to different wear phenomenon that require suitable maintenance of material addition. Overlay welding is used for maintenance in various sectors: steel, construction, agriculture, ceramic, oil and gas, paper, recycling, industry, chemical, food, rubber and plastic, wood and energy sector.
Welding methods can be classified according to the method used in welding heat production and the way how the filling material is fed into the welding process.
The welding method used is selected based on the materials to be welded and the thickness of the material, on the required production efficiency and on the desired visual quality of the welding process. Among the most common processes for overlay welding there are: shielded metal arc welding, MIG/MAG, TIG and plasma welding.
The choice of the correct kind of overlay welding helps to save on the maintenance costs of the machinery and to increase its life cycle. Thanks to the overlay welding process, the maintenance cost of the machinery is significantly amortised. Generally, it is performed by coating a base metal with a more resistant metal layer. The most commonly used materials are stainless steel, a nickel-chromium-based alloy (known by its brand as Inconel) and a cobalt-chromium alloy (known by its trade name as Stellite).
Overlay welding is a process that presents some risks for the safety of the operator. The most known is "the arc-eye", also known as "welder's flash". Looking at the welding arch with unprotected eyes can damage your eyesight permanently and even a short exposure can cause the burning of the eye surface. Ultraviolet and infrared radiation and visible elements, such as glowing spray, can damage eyes and burn unprotected skin.
Moreover, "welding fumes" are produced during processing, which may contain more than 40 different substances from the treated material, from the filler metals or surfaces such as paints and coatings. The welding fumes are dangerous to human health as tiny particles of smoke can enter deep into the lungs.
Since the welding process is potentially dangerous it is good to use and wear all the necessary protections, operating in absolute safety conditions.
The line boring machine Supercombinata uses the MIG/MAG welding process, which is the most economical welding system and is suitable to withstand very high production rates, because in this type of welding the filler material consists of a wire that is fed continuously by the welding machine. Continuous wire welding involves, during the execution of the intervention, the introduction by the welding machine of an active or inert gas flow, which is needed to protect the molten material from oxidation.
The Supercombinata line boring machines are able to carry out continuous welding with variable pitch through a telescopic torch with swivel joint extendable up to 2100 mm. Our welding torch with EURO connection is compatible with MIG/MAG 250 A wire welding machines.
In welding mode, rotation and feed are mechanically combined, so ensuring high quality results (uniform weld seams). In welding mode, the Supercombinata carries out the process of overlay welding automatically, eliminating any errors by the operator.
The automatic overlay welding process, achievable with the Supercombinata, is advantageous in terms of quality, efficiency and repeatability. The automatic execution can be carried out not in close contact with the machine, thanks to the remote-control button, thus preserving the operator from harmful fumes and heat. The Supercombinata ELSA allows machining in hard-to-reach areas and in other challenging situations for manual welding, and in conclusion it allows to perform quality welding and saves time and costs.
Bonifacio Monti, Mechanical Engineer
Roughing and reaming are among the most used processes for rectifying and machining holes in the line boring sector. What is the difference?
Roughing and reaming are used in order to reduce time and cost compared to a traditional repairing. Often the two words are used as synonyms, in reality they consist in two different kinds of machining, according to the result that wants to be achieved. Through reaming, it is possible to obtain tight dimensional tolerances and excellent outstanding surface. Roughing is used instead, to perform medium roughing machining. Let’s discover both processes.
Roughing is a machining process that is performed to enlarge or to surface a pre-existing hole. Roughing processes permit to machine cylindrical surfaces (in case of radial bearings) as well as flat surfaces (axial throw-out bearings). A special feature of the roughing of bearing houses is the possibility to perform one or more machining perfectly aligned with other surfaces which refer to rotation (other bearing houses, other surfaces in general). The roughing machine consists of two or more bearings (according to the case) where is scrolling the boring bar of the machine. On one of these bearings is fastened the machine with its control unit.
Reaming is a finishing operation performed by a multi cutting tool that ensures high precision, outstanding surface finish, superb quality of the hole and thigh dimensional tolerances (Accuracies in the range of hundredths of millimetres). In comparison to roughing, in reaming performance the hole diameters are limited and it is best for cylinder machining, bearing housing and high precision machining. In order to finish cylindric and conical holes a translation motion parallel to the axis is imprinted to the cutting tool.
The Supercombinata boring machines can perform roughing machining by chip removal and ensure close tolerances (normally H7), high precision geometric tolerances, and roughness between 0,8 – 3,2 µm. Overlay welding is performed by a telescopic torch with swivel joint equipped with EURO connector. In welding mode, rotation and feed are operated mechanically ensuring high quality results (homogeneous seam weld). These machines offer following advantages:
The boring bar is a tool used in metal and wood processing. In metal processing, the cutting tool can be soaked and dragged on the X or Y axis, in order to create a slot or an unsymmetric hole or a channel, or it can be moved only with upstroke and downstroke (on the axis Z) in order to create a perfect circular hole. There are three types of boring bars: of steel for high speed, of brazed hard metal and of indexed hard metal. It should be mentioned that the vibration of the boring bar is often the parameter that prevents from achieving high productivity of the machine, because it requires, for example, to reduce speed, feed and cutting depth.
The portable line boring machine Supercombinata is equipped with 2200 mm boring bar (standard equipment) and 3000 mm (as optional) that guarantee a higher stability, especially at this range, reducing vibrations that could make the result inaccurate.
Reaming also differs from drilling. Drilling consists in removing chips to create holes using a rotating and translating tool in axial direction. Holes with very small diameters can be obtained, starting from 0,1 mm up to a few centimetres of diameter. The quality of the holes is subject to many variables, such as feed speed, material and hole depth; due to the difficulty of obtaining surfaces with a high finishing level, in some conditions a subsequent finishing or roughing machining is required in order to reach the required tolerances. The portable line boring machines of the Supercombinata Series, as multifunctional machine tools, are designed to perform drilling operations.
To determine which procedure is the most suitable for finishing holes, it is necessary to check which features the finished piece must have. Reaming is preferable if the finished hole, even on large batches, has to held tight tolerances and excellent surface finishes. Roughing is preferred for roughing and medium finishing operations of holes with non-complex geometries. If none of these features are present, it will be convenient to resort to roughing. The Supercombinata Series was born with this desire: to respond to the increasing demanding requests in the maintenance and repair field.
Bonifacio Monti, Mechanical engineer
Managing customers’ experience goes beyond the purchasing process, but extends across the Customer’s Journey. Elsa has always been committed to accompanying the customer from the need for the product, to the evaluation, purchase and even after-sales assistance. All stages of the process are taken care of by a multilingual team with many years of experience. The customer is thus accompanied at every step, receiving adequate technical and commercial support. Therefore, in addition to its professionalism, Elsa wishes to reflect the quality and reliability that have always distinguished its products also in customer care.
Elsa is a manufacturer of machine tools that is building and commercializing for over 25 years portable line boring machines known as Supercombinata. The portable boring machines, equipped with extra kits and accessories, allow to carry out the most varied repairs finding application in the wind, hydroelectric, earthmoving, naval, nuclear and oil & gas sectors.
Thanks to its 14 exclusive distributors and various service points in the world, Elsa is a globally recognised brand that is synonym of quality and reliability and 97% of production is currently destined for export. The company includes among its customers many important names including Eni, Komatsu, Caterpillar, Liebherr, Metalock, Volvo, Cemex, Bechtel, etc.
Elsa wants to offer added value in terms of design, training and support to its customers during all the various phases of the customer experience process. In addition, Elsa is constantly committed to meet and maintain the highest and strictest health, safety and environmental values in the industry standard.
The experience and knowledge acquired over the years, as well as its avant-garde and innovative vision are the basis of the commitment to provide immediate and concrete solutions to its customers.
By definition, customer experience represents the various stages of the purchasing process shared by the consumer and the brand. It includes all moments of direct and indirect contact, from marketing to sales, between a brand and an end user; however, it refers not only to actions, but also to emotions. In fact, the way in which a brand manages to satisfy a customer often depends on a good part of its success in the market.
In this sense, Elsa’s desire is to offer an excellent and consistent experience at every stage of the customer relationship and create a lasting relationship. To accomplish this, Elsa has activated a dedicated channel.
Customers can send an email to firstname.lastname@example.org and receive assistance in their own language: you can write and request assistance in Italian, English, German, French, Spanish and Polish.
Maintaining the correct functionality of portable boring machines, extra kits and various accessories is essential to keep the reliability and performance of your Supercombinata boring machine. All Elsa products are covered by a two-year warranty.
During the product warranty period, Elsa will repair or replace any part or component that presents manufacturing defects. In case of failure or breakdown, you can contact the dedicated after-sales service, dealer or nearest local service point. Elsa’s specialised technicians are able to carry out repairs, revisions and upgrades in the shortest possible time.
One of the strong points of the Supercombinata portable boring machine is its ease of use. Normally, the operating manual and the demonstration videos provided after purchase are sufficient to learn the correct use of the machine. However, if you would like to become a real expert in the field of oval hole repairing, you can request a training session held by our technicians.
Elsa offers remote training through computer support or directly in its headquarters located in Italy. A training at the user site can also be requested and it will be held by a specialized technician.
To receive more information or for a quote on the solution that best suits your needs, please fill in the form that you can find on the contacts page. One of our employees in charge will get back to you as soon as possible.
Katja Rizzuto, Export Sales Manager
From 24 to 30 October Elsa Srl will be present at the 33rd edition of the World’s Leading Trade Fair for Construction Machinery, Building Material Machines, Mining Machines, Construction Vehicles and Construction Equipment: Bauma, in Munich, the world’s largest exposition in the construction sector.
At Hall B15 stand 415 we will present and show in action the latest news regarding the range of the Supercombinata Series, including the Supercombinata SC2 Compact already available for the global market since this spring. In addition, one of our specialised technicians will perform some practical demonstrations regarding the different processes that can be performed with our portable boring machines: it will be the ideal opportunity to explore them from a completely new perspective.
Bauma is the world’s leading trade fair for construction machinery, construction materials machinery, mining machines, construction vehicles and construction equipment.
As the main meeting point of the sector, it allows participants to enjoy a complete overview of the market, so as to identify the most appropriate products and solutions. Moreover, after several years of health emergency, Bauma will be the most authoritative place to make agreements and promote the growth and internationalisation of the various companies that will participate.
Bauma has always stood out for its variety, for the possibility of the actors involved to carry out business, for its internationality and finally, for its role as a very important point for innovation. This year’s event will be accompanied by five exciting key themes and, in particular:
Now in its seventh participation, Elsa will take part in Bauma, putting on exhibit the excellence in the idealisation, development and realisation of Made in Italy that have always distinguished it. In the last edition, that of 2019, more than 1,000 people visited our stand: this is a considerable amount for an SME born as a family-run business, but which, thanks to its pioneering visions, has taken on a global dimension and has become a protagonist of the niche market in which it operates.
In order to create and consolidate business relationships, especially international ones, Bauma is undoubtedly an event of great importance.
For Elsa, Bauma is important as it is expected to receive customers and professionals, whose feedback will be fundamental for the creation and consolidation of business relationships and to maintain the cutting-edge standard of research and development.
Elsa’s corporate philosophy, to which the company owes its success, is oriented towards constant attention to the customer, offering the most advanced solutions at a technological level as well as an excellent support and assistance service. Bauma will therefore be an opportunity to better illustrate the potential of the products and how they adapt to the most diverse needs in the various industrial sectors of application.
This year Elsa celebrates 25 years of activity, thus reaching an important milestone studded with continuous successes. Recently, the company has decided to renew itself by investing in digital transformation projects, in new compliance functions related to quality, environment and safety. Elsa launched the new website with a new user experience and carried out the first graphic restyling of the historic logo.
There are several projects in the pipeline and new important strategic investments on the horizon: from sustainable production, to new production lines, right up to research and development activities. Always remaining faithful to its vision of “offering the market the most advanced solutions in terms of production and technology”.
In the splendid setting of the Messe München exposition centre, it will be possible to admire one of the latest products of the Supercombinata Series, the Supercombina SC2 Compact. This new compact machine is equipped with power and precision for machining in extremely small spaces. It has been made available for the world market since this spring, after having found great success in the American territory.
With the Supercombinata SC2 Compact you can perform works involving boring and internal overlay welding in the range from Ø 62 mm to Ø 250 mm. All the technical details can be further explored by the many customers, fans and mechanical enthusiasts who will come to visit our stand.
The official dealer for Germany, Norbert Striebosch Mechanische Bearbeitungen, will also be present in collaboration.
We are waiting for you in Hall B5 stand 415. See the map below.
Giuseppe Simmaco, Marketing Manager
The portable line boring machine is a machine tool used for machining cylindrical holes by removing metal chips in order to increase the diameter and obtain a high finish, both in terms of roughness and tolerance.
There are different sectors of application, just as there are different types of jobs that can be performed with different models of line boring machines created to meet the most different requirements. Let's get to know them together.
From a technical point of view, the portable line boring machine is a machine tool capable of performing mechanical machining operations by chip removal inside cylindrical holes guaranteeing size, coaxiality and concentricity within very tight tolerances.
Commonly, due to its small size and extreme versatility, the portable boring machine is used for on-site repairs, giving the user a considerable advantage in terms of time and cost. In fact, the work carried out directly on site reduces the costs of disassembly and transport to a specialised workshop, minimising downtime and allowing a return to full operation in the shortest possible time.
Portable line boring machines are mainly used in the construction industry. However, over the years more and more applications have been found in a wide variety of sectors: wind, railway, hydroelectric, marine, nuclear, oil & gas, etc.
The Supercombinata portable boring machine is the multifunctional boring machine designed, developed and manufactured entirely in Italy by Elsa Srl. One of the greatest advantages of the Supercombinata series is its multi-functionality, i.e. the possibility to carry out not only reaming but also high-quality welding with just one installation, one centring and one set-up. In addition to this, the Supercombinata series can be equipped with a series of optional kits that expand its functionality to include machining on small and large diameters, welding and tapping on shafts (external boring), as well as flange facing, creating seeger seats and creating internal threads with various pitches.
Elsa manufactures and sells 5 different extra kits, which can be purchased at the same time or at a later date depending on the boring machine chosen: a kit for reducing the boring range, a kit for machining large diameters, a kit for flange facing, a kit for internal threading and a kit for external boring and overlay welding
Elsa supplies a range of 6 boring machine models suitable for the most varied requirements in terms of machining range and operating space. Each individual boring machine operates on different dimensions, performing on-site repairs with centesimal precision and close tolerances.
The Supercombined series therefore covers a diameter range from 22 mm of the Supercombinata Easy to 1200 mm of the Supercombinata SC3, which can be obtained with the help of extra kits. The series is enriched by the Compact models with even smaller dimensions, designed to guarantee the same machining quality in reduced operating spaces.
Machining with the Supercombinata provides excellent results in terms of dimensional (H7 tolerance) and geometric precision with roughness in the range of 0.8 - 3.2 µm.
In its 25 years of business, Elsa has evolved as a machine tool manufacturer from a family business to a global company. Today, 97% of production is for export and the sales network is well established with 14 exclusive distributors worldwide.
Salvatore Russo , CEO & Line Boring Specialist
Our dealer Talmac Machine Tools (South Africa) will be exhibiting our products at Grain SA's NAMPO Harvest Day from 16-20 May 2022 in Bothaville.
Whitelaw Engineering Machinery, dealer for Australia, will be exhibiting at Australian Manufacturing Week in Sydney from 7-10 June 2022.
After its great success in the United States, the Supercombinata SC2 Compact is now available in Europe and across the globe. Its small dimensions allow machining jobs from Ø 62 mm to Ø 250 mm, even in extremely tight spaces
Reliable, powerful and easy to use, the Supercombinata series is the complete answer to our customers' needs.
Discover the Supercombinata SC2 Compact
To celebrate our first 25 years together, buy 2 packs of inserts along with 2 tool holders of your choice and get the third one for free. Offer valid until 31 March 2022, while stock lasts.
With a long history of success that began in February 1997, Elsa and its flagship product, the Supercombinata, are nowadays brands known worldwide for quality and reliability.
Elsa started as a family business that soon became a global company: thanks to a well-developed distributor network and strong partnerships with the leading companies in the industry, Elsa is present in more than 100 countries.
The past year was marked by a number of important strategic decisions: The company introduced new management systems, working methods and organizational models, and made major investments in the areas of computerisation, quality, environment and safety. It also unveiled a new website with a graphic redesign of its historic logo.
These 25 years have been a long and arduous journey in which Elsa has met the demands of the market, always ensuring high quality standards. It is undoubtedly a numerically small company, but thanks to the strong commitment, mutual respect and experience of its team, it has been able to establish and consolidate international business relationships. By exporting 97% of its production, the company has become a point of reference all over the world.
All this has been possible thanks to the close collaboration with distributors, suppliers and, last but not least, customers, who have always given the company their trust, time and attention.
For the coming years, several projects are in the pipeline and new strategic investments are in sight. We will continue to expand our product range, invest in innovation, research and development to maintain the pioneering role that has distinguished us over the years.
This anniversary will be a new starting point from which we look to the future with enthusiasm.
ELSA and its staff wishes Happy Holidays and all the best to you in the year to come! Our offices will be closed from 24 December to 7 January 2022.
We will reply to all your requests starting from Monday 10 January 2022.
The ELSA brand, launched in 1997, is famous all over the world for quality and high reliability of its portable line boring machines.
Today it takes on a completely new and up to date look: the website is based on a responsive web design that fits any screen, allowing optimal usability from any electronic device.
The new logo is future-oriented, but remains faithful to the 20-year tradition. The triangle is fragmentated and it is reminiscent of the tools used in metalworking. The green colour represents our commitment to sustainability, while orange recalls ethics and corporate social responsibility.
We are constantly striving for innovation and focusing on the real needs of our customers.
The ELSA Team
Come and visit us at the International Exhibition EMAF 2021 in Oporto (Portugal) from 01 to 04 December.
Our distributor DUNIMEX will be glad to give you information about our portable line boring machines.
WE WILL BE WAITING FOR YOU IN HALL 3 STAND A07
A new distribution agreement has been signed between ELSA and Talmac Machine Tools in South Africa to further expand the worldwide distribution network.
This was possible also thanks to the Italian origin of Talmac’s owner that will help to initiate a synergic cooperation to meet the requirements of the reference market.
The ELSA Team
In regards to the current emergency situation concerning Covid-19, we would like to inform you that our business is regularly running.
Elsa undertakes to comply with all the preventive measures prescribed by the implementing decree and to adapt the company's activities accordingly in order to limit contact between persons. In case of new measures, we will inform you in time.
Our sales and administration departments are as usually at your disposal: If necessary, you can reach us by e-mail and telephone.
The ELSA Team
The Bauma trade fair, confirmed worldwide as the reference event for the industries and main players of construction machinery, has become a fixed appointment for the biggest companies of the sector.
From 8th to 14th April, Elsa will be present with its products for the sixth consecutive time: "Come and visit us in Hall B5 Stand 415!".
This year's main theme will be environmental and social responsibility, involving the production of machines that respect and promote sustainability: Smart City Logistic, Vehicle-to-grid, Traffic Management are just some of the predominant topics.
We at Elsa, always consistant with innovation and sustainability, will be exhibiting our Supercombinata Portable Line Boring Machines and related Kits to provide new ideas for the metalworking sector and the construction industry.
The ELSA Team