{"id":6791,"date":"2026-11-13T09:38:39","date_gmt":"2026-11-13T01:38:39","guid":{"rendered":"https:\/\/miharmle-cnc.com\/?p=6791"},"modified":"2026-11-13T09:40:43","modified_gmt":"2026-11-13T01:40:43","slug":"guide-on-tandem-press-brake","status":"publish","type":"post","link":"https:\/\/miharmle-cnc.com\/it\/blog\/guide-on-tandem-press-brake\/","title":{"rendered":"Guide on Tandem Press Brake: Setup, Benefits & Applications"},"content":{"rendered":"

Press brakes are common in many metal fabrication workshops, right? These machines help bend metal sheets into different shapes. There are different types of press brakes available in the market. Among these, tandem Press Brakes stand out. This guide on tandem press brakes will walk you through how this machine bends large sheets.<\/span><\/p>\n

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As you know, conventional press brakes are excellent for bending small metal sheets. However, they are not the best for handling large metal sheets. That’s where the tandem press brakes prove to be a great help. A tandem press brake system involves using two small press brakes to bend larger sheets. In this article, I will discuss everything about tandem press brakes, their benefits, and applications. So, let’s get started!<\/span><\/p>\n

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What is a Tandem Press Brake?<\/b><\/h2>\n

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Tandem <\/span>presse piegatrici<\/b><\/a> are not individual or independent machines. Instead, the system consists of multiple machines for bending longer metal sheets.<\/span><\/p>\n

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Tandem press brake systems allow manufacturers to bend larger-sized sheets easily. This system involves joining two or more press brakes side by side. These machines are CNC-connected to each other and are synchronized for smooth operations. This combined operation ensures manufacturers can bend larger metal sheets efficiently.<\/b><\/p>\n

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As I said above, press brakes are excellent, but they have specific limitations. Each machine has a specific bending capacity. Some press brakes can bend 4-meter-long sheets, while others can bend 4 meters. What if you need to bend an 8-meter-long metal sheet? That’s where the tandem press brakes come in handy. In tandem systems, multiple press brakes are joined together.\u00a0<\/span><\/p>\n

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Suppose you have press brakes with a bending length of 4 meters. If you use them individually, you can bend a 4-meter sheet, right? Now, let’s join these two press brakes, connect them to the CNC system and sync them. After this, your two individual press brakes will work together. In this tandem system, you’ll get a higher bending length of 8 meters.\u00a0<\/span><\/p>\n

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You can connect multiple press brakes if you need a longer bending length. As a result, you’ll be able to use even the extra-long metal sheets with ease. In this system, the ram moves, and the punch moves with it. This punch then presses against the die to bend the sheet. Since both machines are in sync, the whole sheet bends together.\u00a0<\/span><\/p>\n

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Setup of Tandem Press Brake: Working Process<\/b><\/h2>\n

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Understanding the working and setup of tandem press brakes is crucial. This portion is also important for those who want to get started with two press brakes and increase their bending length. In the section below, I will discuss the whole setup process of tandem press brakes.<\/span><\/p>\n

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1- Positioning & Aligning the Machines Side by\u00a0 Side<\/b><\/h3>\n

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Tandem systems involve joining two or more press brakes together to increase their bending length. First, the press brakes must be joined together and aligned. They should be placed side by side and perfectly aligned. Additionally, the surface on which the machines are placed must be level. This means there should be no misalignment between the machines to be joined.\u00a0<\/span><\/p>\n

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Expert technicians then align the bed, frame, and other parts of both machines. Remember, machine alignment is crucial. If even a small misalignment remains, the press brakes may not provide precision. Parts may face dimension variations at the bend, which could affect your projects. So, spend as much time as possible aligning the press brakes that will be joined.<\/span><\/p>\n

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2- Connecting the CNC Control System<\/b><\/h3>\n

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Once the press brakes are aligned, the next step is to connect them. For this, you’ll need a tandem-compatible CNC control system. This system connects two press brakes so they work together in synchronization. CNC is an advanced computerized system that helps control press brake operations.\u00a0<\/span><\/p>\n

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One press brake acts as the master and directly receives signals and instructions from the CNC system. The second press brake acts as a slave, following the master’s machine instructions. The CNC system controls the movement so the rams of both machines move together in sync. CNC-based press brake connection is what tandem systems are all about. Tandem systems join two or more machines; their CNC system increases their precision while bending larger sheets.<\/span><\/p>\n

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3- Install the Punches & Dies<\/b><\/h3>\n

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After connecting two press brakes, you’ll have to install the punches and dies on both machines. Remember, press brakes perform bending tasks using punches and dies. The punch is the upper part that presses the material into the die-specific shape. The bending shape typically determines the die shape. You’ll have to carefully install the dies and punches on both machines. There should not be any misalignment when installing punches and dies. The type of die you should use depends on your material thickness and bend shape.<\/span><\/p>\n

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4- Positioning the Metal Sheet<\/b><\/h3>\n

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This is one of the most important steps as it involves positioning the workpiece. The metal sheet you want to bend must be positioned correctly. Once you put two press brakes together, you get more bending lines. This is where you place the workpiece for bending. During placement, make sure the long metal sheets are aligned with the bending line.\u00a0<\/span><\/p>\n

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It must be perfectly positioned on the die. If the metal sheet is positioned incorrectly, it will affect the bend precision. For proper alignment, you can use a backguage. This dedicated positioning system is located behind the bending area. It helps you keep the right distance and positioning when bending the long metal sheet.<\/span><\/p>\n

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5- Synchronize & Start the Bending Operation<\/b><\/h3>\n

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Once the metal sheet is positioned correctly, you’ll have to start the bending operation. For this, the CNC machines will synchronize both press brakes. This ensures the rams of both press brakes (master and slave) move together. As a result, the ram brings the punches of both machines downward.\u00a0<\/span><\/p>\n

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These punches will press against the dies and bend the long metal sheet. As both press brakes are in sync, they create a very precise bend. The CNC system controls the whole bending process. Remember, you can adjust parameters on the CNC system for custom requirements. This system ensures the punches apply the right pressure on the dies to bend the workpiece. As a result, even long metal sheets can be bent with ease.\u00a0<\/span><\/p>\n

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Types of Tandem Press Brakes<\/b><\/h2>\n

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There are different types of tandem press brake systems that one can use. Which type of system you should use depends on the length of the metal sheet. If the sheet is extra long, you might need tandem press brakes with multiple press brakes joined together. Below is a list of some common tandem press brakes one can use:<\/span><\/p>\n

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