Centerless grinders – the key to precision grinding in modern industry
What are centerless grinders and why are they important? Centerless grinders are specialized machines designed for precision grinding of straight-shaped workpieces, such as shafts or bushings. A unique feature of these machines is the lack of classic workpiece support, which means that the material is not fixed at a single point, as is the case with traditional grinders. The workpiece moves freely along the abrasive disc, which simultaneously rotates in the opposite direction. This solution eliminates so-called “fangs” – surface irregularities that are a common problem in traditional grinding processes. Thanks to this technology, it is possible to achieve high surface quality, which is crucial for workpieces requiring exceptional dimensional accuracy and appropriate finishing parameters. Principle of operation of centerless grinders In the process of centerless grinding, the control of parameters such as rotational speed, contact force and workpiece travel speed plays a key role. The workpiece is freely supported between two discs: one rotating at high speed and the other responsible for stable sliding. This arrangement eliminates the need for support points, which reduces the risk of surface damage. To maintain the quality of the process, cooling systems are also used to reduce friction and minimize the risk of material overheating. As a result, workpieces maintain dimensional stability and proper technical parameters, even when machining parts that require tight tolerances. Types of centerless grinders and their applications Centerless grinders can be divided into several types depending on their application and design: How do centerless grinders support production at SIM Gdynia? At SIM Gdynia, we have implemented centerless grinding technology to meet the demands of manufacturing high-precision parts. Thanks to the use of these machines, we have significantly improved the efficiency of our machining processes, which allows us to complete orders in less time while maintaining the highest quality. One of the main effects is the achievement of surface smoothness, which is crucial for parts used in dynamic systems, such as sealing rings and machine components. In addition, shortened machining cycles and reduced material losses translate into optimized production costs. With centerless grinders, we are able to offer our customers products that meet the most stringent technical standards. Summary Centerless grinders are an essential part of modern machining, enabling precise and efficient production of cylindrical parts and parts with irregular shapes. Their use makes it possible to achieve a high quality surface finish, eliminating the problems associated with traditional grinding methods. At SIM Gdynia, we use this technology to realize orders at the highest technical level, while optimizing production time and costs. This allows us to effectively support our customers in achieving their industrial goals.
CNC gear milling machine – the key to precision gear cutting
What are CNC gear milling machines? CNC orbital milling machines are specialized machines used in machining, designed for the production of gears with an orbital tooth profile. Thanks to the use of numerical control technology, they make it possible to precisely reproduce the shape of the teeth in accordance with strict dimensional standards. These devices are used in the production of components requiring high accuracy, such as drivetrain components used in the automotive, aerospace and engineering industries. How do CNC envelope milling machines work? A CNC orbital milling machine enables gears to be machined by precisely controlling the trajectory of the cutting tool, which allows the teeth shape to be accurately reproduced. The process is carried out on several working axes that operate simultaneously, allowing multidirectional movements of the tool. Thanks to CNC programming, it is possible to plan each machining step with high accuracy. This organization of work minimizes the risk of errors and ensures repeatable production. As a result, gears that meet quality standards can be obtained. Challenges in the gear cutting process The gear cutting process involves the need to maintain very tight dimensional tolerances. Even small deviations in the shape or dimensions of the teeth can affect the functioning of the mechanism in which they are used. An important part of the process is the geometry of the cutting tool – the peripheral cutter – and its proper alignment. Precise adjustment of parameters such as rotational speed, feed rate and tool angle is key to achieving a high-quality product. S&T Dynamics H200 envelope milling machine at SIM Gdynia In 2022, we expanded our machine park with a CNC S&T Dynamics H200 envelope milling machine. The machine allows us to machine components with a diameter of up to 200 mm, which significantly increases our gear production capabilities. The machine is equipped with a direct torque motor drive, which eliminates mechanical clearances and enables us to achieve high precision during machining. The tooth-cutting process on some parts takes as little as 4 minutes, which significantly reduces turnaround time compared to traditional methods. The S&T Dynamics H200 milling machine operates at a working table speed of up to 230 rpm and achieves a feed rate on the X and Z axes of 12 m/min. These technical parameters allow us to realize machining with high requirements in terms of accuracy and productivity. Semi-dry machining technology in our cutting process In our work, we use the MQL (Minimal Quantity Lubrication) system, which allows us to reduce lubricant consumption. The semi-dry machining technology used in the H200 milling machine not only reduces production costs, but also reduces the environmental impact of the process. By using MQL, the machining process is more efficient and the cutting tools have an extended service life. This approach allows us to optimize production without compromising on workmanship. Summary CNC circumferential milling machines are the backbone of the high-precision gear manufacturing process. The introduction of the S&T Dynamics H200 milling machine to our machine park has made it possible to increase the efficiency of our orders, as well as to guarantee the quality required in modern technical applications. Thanks to the continuous development of our production capabilities, we are ready to meet the requirements of the most demanding industries, such as automotive, aerospace and engineering.
Robodrill α-D21LiB5 Plus – precision CNC machining for demanding production orders
For more than 45 years at SIM Gdynia, we have been developing our machinery to offer CNC machining in accordance with the highest technical requirements. With the new Robodrill α-D21LiB5 Plus machine, we can even more effectively improve quality, process stability and work efficiency. The introduction of this unit allows us to maintain high precision and repeatability of workpiece machining at higher production volumes. Design and technical capabilities of Robodrill α-D21LiB5 Plus The Robodrill α-D21LiB5 Plus features a linear motion mechanism for the X, Y and Z axes, offering a working range of 700 x 400 x 330 mm and a large working area of 850 x 410 mm. The machine supports a maximum table load of 300 kg. Thanks to precision linear guides and a robust frame design, the machine maintains consistent rigidity, which is key to achieving dimensional repeatability. This functionality works especially well in the production of components for the defense sector, where quality and strength criteria are crucial. Powerful spindle for versatile metal machining The Robodrill α-D21LiB5 Plus spindle reaches speeds of 24,000 rpm, enabling dynamic machining of a variety of materials – from light alloys to tough metals. At lower speeds, the machine offers stability for working with denser materials, while at maximum speeds it provides excellent cutting of light alloys. Automation and quick tool changes The Robodrill α-D21LiB5 Plus is equipped with a storage system for 21 tools, with a changeover time of just 1.6 seconds. Shorter tool change times minimize downtime and increase efficiency in batch production, allowing for smooth and continuous execution of orders. Speed and precision – the key to completing demanding projects The Robodrill α-D21LiB5 Plus achieves a maximum traverse speed of 54 m/min and a working feed rate of up to 24,000 mm/min, enabling high-speed operations with high accuracy. Bidirectional positioning accuracy of less than 0.006 mm and repeatability of 0.004 mm ensure dimensional stability throughout the manufacturing process. Expand SIM Gdynia’s manufacturing capabilities with Robodrill α-D21LiB5 Plus Growing demand for high-precision components in the defense sector and other industries requiring the highest quality standards motivated us to invest in a machine that meets these challenges. The Robodrill α-D21LiB5 Plus makes it possible to fulfill orders with higher technical requirements while ensuring repeatability and reduced lead times. With this machine, we can manage resources and deadlines more efficiently, which is a significant-added value for our business partners. Summary The investment in the Robodrill α-D21LiB5 Plus has opened up new opportunities for precision machining that meet the highest technical requirements of our customers. The machine’s high performance enables precise tolerance maintenance, fast tool changeover times and minimal downtime. This strengthens SIM Gdynia’s position as a reliable partner for companies that expect stable production processes, dimensional accuracy and short lead times.
SIM Gdynia’s investment in a CMB-100CNC circular saw by Amada
At SIM Gdynia, we are expanding our production capabilities with the introduction of an Amada CMB-100CNC CNC circular saw to our machine park. This state-of-the-art tool allows us to cut materials such as structural steel, aluminum, brass and bronze even more precisely and quickly. Thanks to this investment, we are not only reducing lead times, but also improving the quality and range of components we offer. The new saw supports us in the implementation of more demanding projects, responding to the growing needs of our customers. CNC technology in circular saws – operating principle and key features CNC (Computer Numerical Control) technology in circular saws makes it possible to fully automate the cutting process, which significantly increases the accuracy and repeatability of machining. Thanks to a precise computer control system, the operator can enter cutting settings, such as angle, depth and speed, which are then implemented by the machine without additional adjustments. CNC technology in the saws allows dynamic adjustment of cutting parameters in real time, which is particularly important when machining materials with different physical properties. With features such as an automatic feeder and a blade wear monitoring system, CNC circular saws can operate without interruption and minimize the risk of human error, speeding up the processing of large orders. Technical specifications of the CMB-100CNC circular saw machine The CMB-100CNC is a versatile machine designed for cutting components of various dimensions: it handles materials with diameters from 25 to 100 mm for round parts, and from 25 x 25 mm to 75 x 75 mm for rectangular parts. Main technical parameters: Impact of the CMB-100CNC saw on SIM Gdynia’s production processes The implementation of the CMB-100CNC circular saw has significantly improved the efficiency of our production processes. Cutting precision and the ability to adjust parameters, such as blade speed and number of teeth, allow us to adapt the machine’s operation to the specific requirements of the material, which increases the fluidity of batch production. Thanks to the automatic feeder and the ability to work with large production batches, we better manage resources and deliver products to our customers on time. The CMB-100CNC, thanks to its power and automation, has become a key component of our production line, which allows us to meet the growing demands of the market and maintain the highest quality of production.
SIM Gdynia’s account of participation in MSPO 2024 – presentation of the possibilities of manufacturing mechanical components for the defense sector
SIM Gdynia’s participation at MSPO 2024 Participation in the International Defense Industry Exhibition (MSPO) 2024 allowed us to present the technological capabilities of our CNC production in an environment bringing together leading defense manufacturers, experts and government representatives. During the show, we held discussions on the application of our technologies to critical defense projects and discussed potential avenues of cooperation in which we can serve as a strategic supplier of high-precision mechanical components. CNC machining for the defense sector – opportunities for SIM Gdynia Our CNC technologies are optimized for the production of high-precision and repeatable components, which is essential for defense projects. The use of five-axis machining centers and multi-spindle lathes allows us to precisely form complex component geometries from high-strength materials such as titanium alloys, aircraft aluminum and special steels. These technologies are used in the production of critical mechanical and optoelectronic components used in weapons, military vehicles and missile defense systems, among others. Record attendance and key events at MSPO 2024 MSPO 2024 attracted a record number of participants – more than 28,000 people from all over the world visited the fair to see the offerings of 769 companies, including 416 Polish ones. Among the key events that took place during this year’s edition were the signing of contracts with a total value exceeding PLN 2 billion, including agreements with international partners for the supply of modern defense systems. Equally important were meetings between representatives of governments and the defense industry, who jointly discussed issues related to national security and technological support for the military. New projects and expansion of our cooperation with the defense industry During MSPO 2024, we established numerous business contacts that could result in new projects in the production of components for weapons systems and military vehicles. Our competence in CNC machining enables us to carry out projects requiring the highest precision and extensive technological solutions. As a supplier, we are able to meet the requirements of current and future defense systems, offering both unit and batch production. MSPO 2024 trade show summary Our participation in MSPO 2024 was an important step in the further development of SIM Gdynia in the defense technology market. The fair brought together an impressive number of exhibitors and visitors, which created exceptional conditions for networking and presenting our CNC machining solutions.We would like to thank everyone who visited our booth and had the opportunity to learn more about our offerings, including production on multi-axis machining centers and systems for precision manufacturing of critical components for weapons systems.
SIM Gdynia recognized in the prestigious Forbes Forum of Family Companies 2024 ranking
Announcement of Forbes distinction for SIM Gdynia We are pleased to announce that SIM Gdynia was among the winners of the prestigious Forbes Forum of Family Companies 2024 ranking. Under the classification of companies with revenues of less than PLN 100 million, our company was recognized for its stable operations and exceptional contribution to regional development. This award is not only a testament to our innovation, but also a confirmation that SIM Gdynia maintains a leading position in the industry, maintaining the highest operational and technological standards. Receiving the Forbes award is a great recognition of the long-term commitment of the entire SIM Gdynia team. Every employee, business partner and customer has contributed to this success, which is the result of continuous improvement of production processes and adaptation to changing market conditions. This award motivates us to continue to develop and seek new opportunities to implement advanced technologies in the production of mechanical components. We are proud that our company can serve as an example of reliability and dependability in the domestic and international markets. Forbes and its importance in the business market Forbes is one of the most reputable business magazines in the world, respected for its financial analysis and rankings, which set the standard for assessing the health of companies. Forbes publications, such as Forbes Diamonds and Global 2000, have for years been a benchmark for companies seeking to confirm their position in the global economy. The Forbes ranking is not only prestigious, but also a confirmation of financial credibility and transparency of operations. Presence in the Forbes list is a confirmation of the highest standards of management and strong market position of companies. Forbes Family Business Forum Award: Criteria and category The Forbes Forum of Family Companies ranking is a special list that recognizes companies with exceptional reputation, financial stability and dynamic development. The seventh edition of the ranking, developed by Forbes magazine in cooperation with Dun & Bradstreet, is based on rigorous criteria, including, among other things, a long history of operations, uninterrupted for at least five years. The ranking takes into account financial results for the years 2018-2022, as well as the value of the company’s assets, valued according to a Swiss method that carefully analyzes both the income value and assets of the company. Companies are evaluated on the basis of their annual revenues and classified in two categories: companies with revenues of less than PLN 100 million and above that amount. This prestigious award is dedicated to companies that demonstrate positive financial results, transparency and significant impact on the development of the local community. In this year’s edition, special emphasis was placed on evaluating family companies that are dynamically developing their business in domestic and international markets. Summary and thanks to the team and partners The Forbes award is the result not only of stable management, but also of the cooperation of the entire SIM Gdynia team. We thank our employees, business partners and customers for their commitment, without which this success would not have been possible. We believe that this award will open up new opportunities for us, strengthening our leadership position in the production of advanced mechanical components. The future of SIM Gdynia looks bright, and further investments in modern technologies and innovative solutions will allow us to continue our dynamic growth at the highest level.
Manufacturing mechanical components on a Miyano BNJ 42 CNC machine tool at SIM Gdynia
Introduction Miyano BNJ 42 CNC machine tools are key tools in SIM Gdynia’s machine park, enabling efficient production of geometrically complex components while maintaining the highest quality standards. Thanks to the use of automatic feeders and an oil-cooling system, the production process is faster and more economical. History of Miyano – CNC machine tool manufacturer BNJ 42 Founded in Japan, Miyano has gained recognition in the global market for its innovative and reliable CNC machines. Since its founding in the first half of the 20th century, Miyano has focused on developing machining technologies that have transformed the metalworking industry. The introduction of the BNJ 42 was a response to the industry’s growing demand for machine tools that enable fast and precise production while reducing operating costs. Description of Miyano BNJ 42 CNC machine tools CNC Miyano BNJ 42 machine tools equipped with two machining heads, allow simultaneous processing of workpieces from two sides. The machining process begins on one head, where the main operations are carried out, and after the workpiece is cut away from the material, the second head performs further precision machining that is impossible on the first side. The oil-cooling system used in the BNJ 42 CNC machine tool provides optimum conditions for cutting tools. Compared to traditional coolants, the cooling oil is better at dissipating heat, resulting in longer tool life and better surface quality of machined components. An additional advantage is the integrated automatic bar feeding system, which enables continuous and uninterrupted operation of the machine, eliminating the need for manual loading of material. It is worth noting that the maximum diameter of the material that this machine tool model is capable of processing is 42 mm. CNC at SIM Gdynia – application of BNJ 42 in production At SIM Gdynia, Miyano BNJ 42 CNC machine tools perform a key function in our machine park, enabling us to realize complex parts with diameters of up to 42 mm. Thanks to the use of these machines, we are able to efficiently produce large series of components, while maintaining competitive lead times and low production costs compared to traditional solutions. The automatic bar feeders on the BNJ 42 machine tools have eliminated the risk of errors related to the human factor. In addition, our production can take place without interruption.The use of Miyano BNJ 42 CNC machine tools has allowed us to achieve a high level of repeatability in production, translating into our competitive advantage.
Loading robots to support CNC production at SIM Gdynia – Fanuc M-710iC/45M
Introduction Modern industrial production is constantly moving toward automation to meet growing market demands and increase operational efficiency. At SIM Gdynia, production processes are supported by modern loading robots, which are an integral part of process lines. The use of robots such as Fanuc M-710iC/45M contributes to increased productivity and quality of manufactured components, which in turn improves the company’s competitiveness on the global market Automation in the production of mechanical components With increasing expectations for speed and precision in production, process automation is becoming an essential component of today’s industrial plants. High volume production, especially in the CNC industry, requires technologies that enable uninterrupted operation and minimize human error. Loading robots, such as the Fanuc M-710iC/45M, are a key tool in this process, allowing efficient management of material flow and optimization of the production cycle. Fanuc M-710iC/45M multitasking robots The Fanuc M-710iC/45M robot is a versatile device designed for a wide range of industrial applications. It features a compact design that allows installation in space-constrained areas. The robot has six axes of motion, with a reach of up to 2606 mm, allowing it to maneuver efficiently in a large workspace. With a payload capacity of up to 45 kg and an operating speed of 360 degrees per second, the Fanuc M-710iC/45M is ideal for fast parts handling and pallet handling. Another advantage is its full IP67-rated protection, which guarantees reliable operation in harsh environments. SIM Gdynia case study At SIM Gdynia, Fanuc M-710iC/45M robots have been integrated into production lines to operate our two CNC machine tools simultaneously. At each machine is a table with moving pallets on which the robots place workpieces. The process begins by picking up an unmachined workpiece, after which the robot, in response to a signal from the machine, places it in the appropriate position for machining. When the process is complete, the workpiece is put back on the pallet, and the table moves to prepare space for the next workpiece. Thanks to these robots, we are completing large production batches at SIM Gdynia with the highest quality standards. Summary The automation of production processes at SIM Gdynia, using Fanuc M-710iC/45M loading robots, is an excellent example of a modern approach to production management in the CNC industry. Investment in technologies that support the operation of production lines allows not only to increase efficiency, but also to adapt to the dynamically changing needs of the market.
AFFS-CNC cutting machine tool extinguishing systems – advantages, mode of operation and types of extinguishing agents
Introduction to AFFS-CNC Extinguishing Systems AFFS-CNC cutting machine tool extinguishing systems are a key component of fire protection in modern manufacturing plants. They make it possible to effectively prevent serious property losses and ensure the safety of workers during machine breakdowns. Types of fire extinguishing agents AFFS-CNC systems use three different extinguishing agents, such as NOVEC 1230 (FK-5-1-12), extinguishing powder and carbon dioxide (CO2). NOVEC 1230 is an environmentally friendly agent that leaves no residue. It is particularly safe for sensitive electronic and mechanical components. The extinguishing powder shows high efficiency in extinguishing fires caused by flammable substances. Carbon dioxide (CO2) is ideal for extinguishing fires in areas where the use of water or other substances would damage equipment, thanks to its ability to displace oxygen and effectively suppress the fire. Advantages of AFFS-CNC systems AFFS-CNC extinguishing systems are characterized by their independence from external electrical power supply, operating on the basis of a pressurized control line. This ensures their reliability even in the event of a power failure. In situations requiring immediate shutdown of the machine tool, these systems can be controlled by pressure sensors or the AFFS-CNC/GSM control module. In addition, the GSM-enabled control module allows for rapid emergency notification. Applications and types of CO2-based extinguishing systems Carbon dioxide (CO2)-based extinguishing systems are particularly suitable for protecting CNC machinery. CO2 is an effective extinguishing agent that does not conduct electricity, making it safe for use in environments with a lot of electrical equipment. There are two main types of CO2 systems: total submersion systems, used in confined spaces where CO2 can be concentrated to suppress a fire, and local application systems, aimed directly at the affected area. AFFS-CNC fire suppression systems at SIM Gdynia At SIM Gdynia, we use a carbon dioxide (CO2)-based fire suppression system on four oil-cooled Miyano machines. This system automatically detects a fire inside the machine and immediately releases CO2, leading to rapid extinguishment of the fire. In theory, once the fire is extinguished and the machine is checked, production can resume immediately. In practice, we have not had the opportunity to test the AFFS-CNC extinguishing system, due to the rarity of failures in our plant. However, we make every effort to ensure the safety of our employees and the continuity of production in the event of a fire. Maintenance and safety Regular maintenance of extinguishing systems is key to maintaining their high efficiency. Maintenance includes checking CO2 cylinders, nozzles and sensors. Staff training in system operation is essential to ensure proper response in the event of a fire. All operations with CO2 require strict adherence to safety standards due to the potential danger to people at high concentrations of the gas. Summary AFFS-CNC’s extinguishing systems offer reliability, high efficiency, and flexibility for customization to meet specific customer needs. They make it possible to ensure maximum safety and protect your equipment investment.
How did CNC come into existence? – History of CNC machining
Introduction CNC, or Computer Numerical Control, is a technology that has revolutionized the manufacturing industry. Through the use of computer control of equipment such as milling machines, lathes and EDMs, CNC has made it possible to produce geometrically complex shapes of mechanical components quickly, precisely and repeatably. Origins of NC technology CNC technology derives directly from NC (Numerical Control) technology, which emerged in the early 1940s. NC, or numerical control, involved programming machines with punch tapes that contained instructions for machine movements. John T. Parsons, in collaboration with the Massachusetts Institute of Technology (MIT), not only developed these machines, but was also the first to use computer methods to solve machining problems, including the precise interpolation of curves describing helicopter rotor blades. When did NC technology evolve into CNC? The transition from NC to CNC technology occurred in the 1950s. In 1952, a team of researchers at MIT developed the first CNC machine, which used a computer to control the machine’s movements. The first commercial CNC machines were brought to market through MIT’s collaboration with Cincinnati Milacron. These machines revolutionized the manufacturing industry by allowing tool trajectories to be programmed to some extent. The evolution of CNC technology in the 1960s and 1970s. In the 1960s and 1970s, CNC technology began to gain popularity. Although the first versions of CAD (Computer Aided Design) software appeared later, development of the initial systems that were precursors to full-fledged CAD solutions began in these decades. These early systems allowed the creation of simpler models that formed the basis for generating the G-codes used to control CNC machines. Additionally, in the 1970s, experimentation began with the first multi-axis machine configurations, which represented a significant step forward in machining complex geometries. These early multi-axis machines allowed a workpiece to be machined from different angles in a single setup. What was the development of CNC in the 1980s like? The 1980s brought significant innovations in CNC technology, fundamentally changing the machining industry. The development of CAD/CAM software enabled designers and engineers to more efficiently design components that could be directly transferred to CNC machines. The introduction of more intuitive interfaces and control systems increased productivity and made the then-current machines easier to operate. Development of CNC technology in the 1990s and early 21st century In the 1990s, significant advances in CNC technology manifested themselves through the introduction of multifunctional machines that combined various machining operations into a single station, greatly streamlining manufacturing processes. The introduction of ERP (Enterprise Resource Planning) systems, allowed better management of production resources and improved production planning. At the beginning of the new millennium, the development of 5-axis machines and industrial networks, such as Ethernet, allowed remote control and monitoring of processes. The increase in automation and robotization has helped to make operations more efficient and reduce operator intervention. CNC today – a case study from SIM Gdynia Thanks to numerous improvements in the cutting function and new generations of CNC machine tools, our machine park at SIM Gdynia has achieved significantly higher production efficiency. Our 5-axis machining centers are capable of machining complex geometries in a single setup, eliminating the need to manually reposition the workpiece. Our integrated automatic material feeding systems and industrial robots work in tandem with CNC equipment, in loading and unloading, ensuring continuous production and optimal cycle times. Summary Today, CNC technology is an integral part of modern industry, enabling the most complex projects and opening up new opportunities for companies around the world. Through continuous technology development and integration with new CNC systems, it remains at the forefront of industrial innovation, driving digital transformation and creating the future of manufacturing.
