Prensa dobradeira CNC pequena: Guia de compra definitivo

The significance of small CNC press brakes extends beyond their technical capabilities. They represent a critical advancement in metalworking, offering unmatched accuracy and repeatability, which are crucial for maintaining quality standards in finished products. By automating the bending process and reducing human error, these machines enhance production efficiency and minimize material waste. Additionally, their space-saving design makes them ideal for small to medium-sized workshops, where maximizing every square foot is vital​

This guide aims to provide an in-depth understanding of small CNC press brakes, exploring their key features, top brands, and factors to consider when making a purchase. Whether you are looking to upgrade your workshop's capabilities or invest in your first CNC press brake, this comprehensive guide will help you make an informed decisison.

What Is CNC Press Brake

A CNC (Computer Numerical Control) Press Brake is a sophisticated and automated machine designed for bending metal sheets. By using computer programming, it precisely controls various aspects of the bending process, including the bend's angle, depth, and length. The CNC system interprets these instructions to accurately position the bending tools. This high level of automation results in rapid and precise bending, minimizing human error and boosting productivity. CNC Press Brakes are versatile and flexible, capable of performing complex bending tasks and integrating seamlessly with other manufacturing processes.

What Tons That CNC Press Brake Have

CNC press brakes come in a wide range of tonnage capacities, depending on the manufacturer and the specific model. The tonnage of a CNC press brake refers to the maximum amount of force the machine can apply to the metal sheet being bent. Common tonnages for CNC press brakes range from:

• 30 to 100 tons: Suitable for light to moderate bending tasks and smaller sheet sizes.
• 100 to 300 tons: Ideal for medium to heavy-duty applications, handling larger sheets and more complex bends.
• 300 to 500 tons: Used for heavy-duty bending operations, capable of handling very large sheets and significant bending requirements.
• 500 tons and above: Designed for extremely heavy-duty tasks, accommodating large sheets and very thick materials.

When selecting a CNC press brake, it's important to choose one with sufficient tonnage to meet your specific bending needs, considering factors such as sheet size, material thickness, and complexity of the bends.

How to Define "Small CNC Press Brake"

A "small CNC press brake" is typically defined by its compact size and lower tonnage capacity compared to larger models.

A small CNC press brake is characterized by its compact size and lower tonnage capacity, typically ranging from 30 to 100 tons. This makes it well-suited for lighter and smaller-scale bending tasks. The working length of a small CNC press brake is generally between 1 to 3 meters (approximately 3 to 10 feet), allowing it to handle smaller sheet sizes efficiently. Its compact footprint makes it ideal for workshops with limited space.

Designed to handle thinner materials and smaller sheets, small CNC press brakes are often used for prototyping, small batch production, and in environments where space is at a premium. Additionally, they are more affordable than larger models, making them a cost-effective option for smaller shops or businesses with budget constraints.

Features of Small CNC Press Brake

Small press brakes are designed to be user-friendly and efficient, allowing for quick setup and completion of bending tasks. They typically have a smaller footprint, making them easier to fit into smaller workspaces. Despite their compact size, small press brakes still offer exceptional bending capabilities and are capable of achieving precise and consistent results.

These machines are equipped with various features that enhance their functionality and ease of use. They often come with adjustable backstops, allowing for precise positioning of the sheet metal. Some small press brakes also have digital displays and programmable controls, enabling operators to input specific bending angles and dimensions for increased accuracy. Additionally, many small press brakes are equipped with safety features, such as emergency stop buttons and guards, ensuring the well-being of the operators.

Overall, small press brakes are an essential tool for professionals in the metal fabrication industry. They offer precision, efficiency, and user-friendly features, making them a popular choice for bending tasks in smaller workshops. With their compact size and versatile capabilities, small press brakes contribute to maximizing productivity and delivering consistent results in the metal bending process.

Benefits of Using Small CNC Press Brake

Space Efficiency:

The compact design of small CNC press brakes allows them to fit into tight workshop spaces, making them ideal for environments with limited floor area. This efficient use of space helps maximize productivity and enables versatile placement near other machinery or in dedicated workstations, facilitating a streamlined workflow. Their smaller size ensures that valuable workshop space is utilized effectively, enhancing overall operational efficiency.

Custo-benefício:

Small CNC press brakes are generally more affordable than larger models, presenting an attractive option for startups or small businesses with limited budgets. The lower initial investment is complemented by reduced operating costs, including lower energy consumption and maintenance needs. This combination of affordability and cost-efficiency makes these machines a practical choice for those looking to optimize their financial resources while still achieving high-performance bending capabilities.

Precision and Automation:

Small CNC press brakes leverage advanced CNC technology to deliver high precision and automation in the bending process. This ensures that bends are executed with exacting accuracy, including precise control over angle, depth, and length. By reducing human error and ensuring consistent results, these machines enhance product quality and reliability, making them indispensable for applications where precision is paramount.

Versatilidade:

Despite their smaller size, small CNC press brakes offer impressive versatility, accommodating a wide range of tasks from prototyping to small-batch production. They are capable of handling various materials and thicknesses, providing flexibility in manufacturing. This adaptability makes them suitable for diverse applications and allows businesses to tackle both routine and specialized bending operations with ease.

Quick Setup and Turnaround:

Small CNC press brakes are designed for quick setup and fast adjustments, which facilitate rapid turnaround times between jobs. This efficiency is particularly beneficial for handling small production runs or custom orders, allowing businesses to meet tight deadlines and improve overall productivity. The ability to swiftly adapt to different tasks and settings supports a more agile and responsive manufacturing process.

Lower Operational Costs:

The lower power consumption and reduced wear and tear associated with small CNC press brakes contribute to their lower operational costs. This includes savings on energy bills and less frequent maintenance, which together help to minimize long-term expenses. These cost savings enhance the overall value proposition of the machine, making it an economically viable option for cost-conscious businesses.

Flexibility in Production:

Small CNC press brakes provide significant flexibility for handling custom jobs and varying production needs. Their ability to adapt to different bending tasks and materials makes them a valuable asset in dynamic manufacturing environments. This adaptability supports a range of applications, from specialized tasks to custom projects, ensuring that businesses can efficiently address diverse production requirements.

Where A Small CNC Press Brake Fit

A small CNC press brake is particularly well-suited for various environments due to its compact size and versatile capabilities. In small workshops, its limited footprint is ideal for maximizing space, while still providing high-performance bending. This makes it an excellent choice for environments with restricted floor area. Similarly, in prototyping facilities, the machine’s precision and ability to handle custom bending tasks support rapid adjustments and quick production, which is crucial for iterative design processes and prototype creation.

For small-batch production, a small CNC press brake offers cost-effective solutions by handling short production runs with high accuracy, making it more economical than larger machines. Educational institutions benefit from its compact design and hands-on capabilities, allowing students to gain experience with CNC technology in limited spaces. Custom fabrication shops and maintenance and repair shops also find value in its versatility, as it can accommodate various materials and tasks, from custom projects to small repairs.

Startups and small businesses appreciate its affordability and lower operational costs, providing an accessible entry point for CNC bending. Finally, for in-house manufacturing, it offers on-demand production and greater control over the manufacturing process, allowing companies to adapt quickly to production needs.

TOP 5 Small Press Brake Manufacturers

1. AMADA   

Brand: Japan,   Founded in 1946

AMADA press brake manufacturer is a large international company in sheet metal processing machinery. They provide sheet metal machinery, Amada press brake, cutting machines, grinding machines, stamping presses, and precision welding machines.

Amada is a Japanese company founded in 1946 with a long history. Amada’s products have a comprehensive and reasonable mechanical structure, providing users with the best quality guarantee.

2. Trumpf 

Brand: German, Founded in 1923

Germany Trumpf is an innovative high-tech company, divided into three parts: Machine tools(Trumpf press brake, shear), laser technology, and electronics. It is one of the best manufacturers of sheet metal fabrication machinery, industrial lasers, and industrial application electronic products in the world.

TRUMPF is guiding the technological development trend with continuous innovation, establishing new technical standards, and is committed to developing and updating more products for the majority of users.

3. Accurpress

Brand: Canada, Established in 1973

Accupress is a professional manufacturer of CNC machine tools, established in Canada in 1973. It mainly manufactures  Accurpress press brakes, shearing machines, tooling, and other peripheral products.

Accupress specializes in large-tonnage, tandem press brake, and robot automation. Accupress is known for its high manufacturing quality and advanced technology.

4. Bystronic

Brand: Italy, Established in 1964

Bystronic is a world-famous provider of sheet metal processing solutions, established in Switzerland in 1964.

The company focuses on the automation of the complete material and data flow of the cutting and bending process chain.

Bystronic mainly provides laser cutting machines, press brakes, automation systems, and related software.

5. Durma

Brand: Turkey, Established in 1956

Durmazlar Machinery was established by Ali Durmaz in 1956. Durma press brake manufacturer is a world-renowned metal sheet processing base.

Durma’s products include Durma CNC press brakes, turret presses, punching machines, all-solid-state fiber lasers, shears, ironworkers, plate rolls, angle rolls, and saws.

Factors to Consider When Choosing A Small Press Brake

Quando se trata de selecionar uma pequena prensa dobradeira para suas necessidades de dobra de metal, há alguns fatores-chave a serem considerados. Ao considerar cuidadosamente esses fatores, você pode garantir que escolheu a máquina certa para sua oficina. Aqui estão alguns pontos importantes a serem lembrados:

1. Tamanho e capacidade: A primeira coisa que você precisa determinar é o tamanho e a capacidade da prensa dobradeira que melhor atenderá às suas necessidades. Considere o comprimento e a espessura máximos dos materiais com os quais você trabalhará e escolha uma máquina que possa lidar com eles de forma eficiente. É importante encontrar um equilíbrio entre o tamanho da máquina e o tamanho dos materiais com os quais você normalmente trabalha.
2. Recursos e controles: Preste atenção aos recursos e controles oferecidos pela pequena prensa dobradeira. Procure por batentes ajustáveis, controles programáveis e outros recursos que irão melhorar sua precisão e exatidão em tarefas de dobra. Esses recursos podem melhorar muito sua eficiência e produtividade no processo de fabricação de metal.
3. Facilidade de uso: Uma pequena prensa dobradeira deve ser fácil de usar, mesmo para aqueles com experiência limitada. Procure uma máquina que ofereça controles intuitivos e instruções claras. Uma prensa dobradeira amigável ao usuário economizará seu tempo e frustração a longo prazo.
4. Durabilidade e confiabilidade: Você quer uma pequena prensa dobradeira que seja feita para durar. Procure uma máquina feita de materiais de alta qualidade que possam suportar as demandas do uso diário. Além disso, considere a reputação e o histórico do fabricante para garantir que você esteja investindo em um produto confiável.
5. Preço e valor: Por fim, considere o preço e o valor da pequena prensa dobradeira. Embora você queira ficar dentro do seu orçamento, é importante lembrar que a qualidade e o desempenho não devem ser comprometidos. Procure uma máquina que ofereça um bom equilíbrio entre preço e valor, e considere os benefícios de longo prazo que ela trará para sua oficina.

Larger CNC Press vs Small Press Brake, How to Choose

Every shop is unique, and understanding your specific needs is key to selecting the right equipment. A small CNC press brake can be an excellent choice if your operations involve tasks such as:

• Bending Small or Complex Parts: Ideal for handling intricate or smaller parts that require precise bends. This versatility also extends to accommodating some larger parts when needed.
• Reducing Waste and Eliminating Rejections: By ensuring accurate bending, a small CNC press brake minimizes material waste and reduces the likelihood of rejections, enhancing overall efficiency and cost-effectiveness.
• Producing a Variety of Materials and Parts: Capable of working with a wide range of materials and producing diverse parts, a small CNC press brake with a single set of punches and dies can streamline your operations and reduce the need for multiple tools.
• Saving on Bending Die Costs: With the ability to perform various bending tasks using fewer dies, you can lower the costs associated with purchasing and maintaining bending tools, making it a more economical choice.
• Creating Complex Shapes: Excellent for producing complex geometries such as S-shaped, U-shaped, and polygonal parts, providing flexibility for various design and manufacturing requirements.
• Maintaining Simple Setup and Tooling: Designed for easy setup and quick tooling changes, a small CNC press brake allows for efficient switching between different applications, supporting a wide range of bending tasks.
• Facilitating Easy Movement: When flexibility in machine placement is necessary, the compact size of a small CNC press brake allows it to be easily moved by forklift, accommodating changes in workshop layout or production needs.

Incorporating a small CNC press brake into your shop can enhance your ability to perform diverse bending tasks with precision, efficiency, and cost-effectiveness, making it a valuable addition to your manufacturing capabilities.

Maintenance of A Small CNC Press Brake

Quando se trata de usar e manter uma pequena prensa dobradeira, há algumas dicas importantes que podem ajudar a garantir sua longevidade e desempenho ideal. Aqui estão algumas considerações importantes para ter em mente:

1. Leia o Manual: Antes de operar a prensa dobradeira, é crucial ler atentamente o manual do usuário. Isso fornecerá informações valiosas sobre precauções de segurança, procedimentos operacionais e diretrizes de manutenção específicas para sua máquina.
2. Pratique a operação segura: Sempre priorize a segurança ao usar uma prensa dobradeira. Use equipamento de proteção adequado, como luvas e óculos de segurança, e certifique-se de que a máquina esteja devidamente aterrada. Familiarize-se com o botão de parada de emergência e outros recursos de segurança, e nunca exceda a capacidade máxima da máquina.
3. Manutenção regular: Uma prensa dobradeira bem conservada não só aumentará sua vida útil, mas também melhorará seu desempenho. Inspecione e limpe a máquina regularmente, prestando atenção às ferramentas, ao sistema hidráulico e aos componentes elétricos. Lubrifique as peças móveis de acordo com as recomendações do fabricante e trate prontamente de quaisquer problemas ou anormalidades.
4. Manutenção de ferramentas: As ferramentas em uma prensa dobradeira são submetidas a desgaste significativo durante o uso. Verifique regularmente a condição das ferramentas e substitua quaisquer peças desgastadas ou danificadas. Armazenar e organizar adequadamente as ferramentas também é essencial para garantir sua longevidade e fácil acessibilidade.
5. Calibração e Alinhamento: Verifique periodicamente a calibração e o alinhamento do freio de prensa para garantir resultados de dobra precisos. Use ferramentas de medição de precisão para verificar o paralelismo do aríete e da cama, bem como os ângulos das dobras. Se alguma discrepância for encontrada, consulte o manual do usuário ou entre em contato com um profissional para obter assistência.

Lembre-se, o uso e a manutenção adequados de uma pequena prensa dobradeira são vitais para o desempenho e a longevidade ideais. Seguindo essas dicas, você pode garantir que sua máquina opere com segurança e eficiência, permitindo que você alcance resultados de dobra precisos e consistentes.

Resumo

Choosing the right small CNC press brake is crucial for achieving efficient and accurate metal bending. By evaluating factors such as size, capacity, features, controls, user-friendliness, durability, reliability, and price, you can make an informed decision that aligns with your specific requirements. KRRASS offers a range of small CNC press brakes designed to provide exceptional performance and versatility, making them ideal for both small-scale workshops and larger manufacturing environments.