CNC metal bending machine specialist for you
A CNC metal bending machine is a machine that helps in bending cold metal plates into desired geometric and cross-sectional shapes. Investing in a CNC metal bending machine for the sheet metal processing industry is worthwhile as it is a long-term investment that will serve you for a long time. DAG has various CNC metal bending machines. You can choose the one that suits your needs. Additionally, you can customize and select according to your needs. Without further ado, let’s get started. Here are the best DAG CNC press brakes:
Up Stroke Type (DG-3512,DG-6020,DG-8025,DG-10030)
For general bending machines, the slider stroke can be set to stop once, which will waste time when processing complex workpieces. The DAG down-action electro-hydraulic servo CNC bending machine has a programmable slider stroke and can be stopped anytime. The unique marking line bending function ensures that our bending machine can quickly and accurately find the marking line and improve process efficiency. The machine structure is made of high-performance carbon steel and has undergone stress relief treatment. The maximum pressure-bearing capacity can reach 100 tons, ensuring that our bending machines maintain high precision and strength even under long-term heavy loads.
Down Stroke Type (DG-11032,DG-20040……)
The DAG DG series top-acting electro-hydraulic servo CNC bending machine has a 10-inch LCD colour touch screen, storing up to 200 processing programs, making the operation convenient and efficient. The considerable stroke length and throat depth make this hydraulic press brake ideal for large, complex parts. Low-speed bending technology is used to protect the bending surface of the workpiece and prevent accidents so that thin-walled workpieces can also achieve excellent processing results.
Down Stroke Type (ES-4013,ES-6020……)
The full servo pure electric CNC bending machine adopts a transmission structure in which a servo motor directly drives the screw rod, and a magnetic scale is added to form a fully closed-loop control with the system to improve transmission accuracy. The input power of the motor is proportional to the load power in standby; the engine does not rotate, consumes almost no power, and makes virtually no noise; when bending, the slider moves upward without load and consumes less power. The transmission system of the fully servo pure electric CNC bending machine is simple. Components such as oil cylinders, pump valves, seals, and oil pipes have been eliminated. There are no maintenance costs here. Just lubricate it regularly, eliminating the trouble of changing oil and hydraulic components. There are no hydraulic oil leaks or waste oil disposal and contamination dilemmas.
The bending machine uses the equipped mould (general or special mould) to bend the metal sheet in the cold state into workpieces of various geometric cross-section shapes. The bending machine generally adopts a special CNC system for the bending machine, which can be automatically realized by the CNC system slider running depth control, slider left and right tilt adjustment, rear stopper front and rear adjustment, left and right adjustment, pressure tonnage adjustment and slider approach working speed adjustment, etc. The bending machine can easily realize the actions of slider downward, inching, continuous, pressure maintaining, return and stop midway, etc., and can complete multi-elbow bending at the same angle or different angles at one time.
1. Laser CNC bending machine
2. Hydraulic CNC bending machine
3. Electric CNC bending machine
4. Air pipe bending machine
1. Maximum bending force
The maximum bending force is an essential technical parameter of a CNC bending machine, which determines the maximum thickness of the metal sheet that the machine can process. The maximum bending force is generally measured in tons. The maximum bending force of standard CNC bending machines is between 40 tons and 400 tons.
2. Maximum bending length
The maximum bending length is the most extended length of the metal sheet that the index-controlled bending machine can process. The maximum bending length is generally measured in millimetres. The maximum bending length of standard CNC bending machines is between 2000 mm and 6000 mm.
3. Hydraulic system pressure
The hydraulic system pressure is an important factor affecting the bending force of the CNC bending machine and is also one of the key indicators for judging its quality. Hydraulic system pressure is generally measured in MPa. Common CNC bending machine hydraulic system pressures are between 16 MPa and 30 MPa.
4. Control system
The control system is the core of the CNC bending machine. Standard control systems include servo control systems, PLC control systems, and CNC control systems. The CNC control system has the advantages of high precision and strong programmability and has now become the mainstream control system for CNC bending machines.
The steps to operate a CNC bending machine include the following key points:
1. Preparation. Make sure that the machine’s hydraulic system, electrical system, operating system and other components are normal, place the machine on a level ground and wear protective gear such as protective glasses, gloves, etc.
2. Check before starting. Ensure that fasteners in all parts of the equipment are not loose, operating parts such as buttons, handles, switches, knobs, etc. can be operated flexibly and reliably, safety protection devices are complete and effective, and the equipment is well lubricated.
3. Programming and simulation. According to the bending size and shape of the workpiece, use the CNC system to program and conduct simulation runs to check whether the program is correct.
4. Adjust equipment parameters. According to the material, thickness and bending angle of the workpiece, adjust various parameters of the equipment, such as bending pressure, speed, stroke, etc.
5. Place the workpiece. Place the workpiece to be bent at the designated location on the equipment and ensure that it is fixed reliably.
6. Start the device. Press the start button and the equipment starts bending operations according to the program.
7. Monitor operation. During the operation of the equipment, closely monitor the operating status of the equipment, and detect and handle abnormal situations in a timely manner.
8. Check the finished product. After the equipment completes the bending operation, check the quality of the finished product to ensure that it meets the requirements.
9. Clean up the scene. Clean up equipment and work sites and keep them tidy.
10. Maintenance and storage. Carry out cleaning and maintenance work after completing the operation to ensure the normal operation of the machine.
Safety is the primary concern when performing these steps and appropriate safety measures should be taken to avoid accidents.
1. Strictly abide by the safety operating procedures for machine tool workers and wear labour protection equipment as required.
2. Before starting, carefully check whether the motor, switch, circuit and grounding are normal and firm, and check whether the control parts and buttons of the equipment are in the correct position.
3. Check the overlap and solidity of the upper and lower dies; check whether each positioning device meets the requirements for processing.
4. When the upper sliding plate and each positioning axis are not at the origin, run the return-to-origin program.
5. After the equipment is started, run idling for 1 to 2 minutes, and move the skateboard to the full range 2 to 3 times. If you find any abnormal sound or malfunction, you should stop the machine immediately and eliminate the fault. You can only work after everything is normal.
6. The work should be under unified command by one person, so that the operator and the feeding and pressing personnel can cooperate closely to ensure that the cooperating personnel are in a safe position before sending out the bending signal accurately.
7. The sheet must be compacted when bending to prevent the sheet from lifting up and injuring people during bending.
8. When adjusting the sheet metal die, the power supply must be cut off, and the operation must be stopped.
9. When changing the opening of the variable lower mold, no material is allowed to contact the lower mold.
10. When the machine tool is working, no one is allowed to stand behind the machine tool.
11. Filing the sheet at one end is strictly prohibited.
12. If the workpiece or mold is found to be incorrect during operation, it should be stopped and corrected. It is strictly prohibited to correct by hand during operation to prevent hand injury.
13. It is forbidden to bend ultra-thick iron plates or quenched steel plates, high-grade alloy steels, square steels and plates that exceed the performance of the plate bending machine to avoid damaging the machine tool.
14. Frequently check the overlap of the upper and lower molds; whether the indication of the pressure gauge complies with regulations.
15. Stop the machine immediately if an abnormality occurs, check the cause and eliminate it in time.
16. Before shutting down, place wooden blocks on the lower mold under the oil cylinders on both sides, lower the upper slide plate onto the wooden blocks, exit the control system program first, and then cut off the power supply.
1. Workpiece specifications
The first important thing to consider is the part you want to produce. The key points are to purchase a machine that can complete the processing task with the shortest table and minimum tonnage, carefully considering the material grade and maximum processing thickness and length, thus significantly reducing the acquisition cost.
2. Twist
Under the same load, the deflection of the 10-foot machine table and slider is four times that of the 5-foot machine.
How do you buy an affordable CNC metal bending machine with local pickup or global shipping after browsing and researching? This is the annoyance you have to face after browsing and researching. You can complete most online shopping by following these eight buying steps. Let us guide you through every step of the buying process.
Step 1. Request a consultation.
You can consult our sales manager online, and we will recommend the most suitable CNC metal bending machine to you after we understand your needs.
Step 2. Get a free quote.
We will provide a detailed quotation based on the CNC bending machine you consulted. You will get the best machine specifications and affordable prices within your budget.
Step 3. Sign the contract.
Both parties carefully evaluate and discuss all details of the order (technical parameters, specifications, and commercial terms) to eliminate any misunderstandings. If you have no questions, we will send you a PI (Proforma Invoice) and then sign a contract with you.
Step 4: Build your machine.
We will arrange the manufacturing of the CNC bending machine immediately after receiving your signed sales contract and deposit. Buyers will be updated and informed of the latest news on the build as it progresses.
Step 5. Check.
The entire production process is subject to regular inspections and strict quality control. The machine is inspected before leaving the factory to ensure it works properly.
Step 6. Transportation.
After confirmation, shipment will begin in accordance with the contract’s terms. You can ask for shipping information at any time.
Step 7. Customs clearance.
We will provide and deliver all necessary shipping documents to the buyer and ensure smooth customs clearance.
Step 8. Support and Service.
We will provide professional technical support and free customer service via phone, email, Skype, WhatsApp, online live chat, and remote service. In certain areas, we also provide door-to-door service for all types of CNC metal bending machines.
If you need to buy a CNC metal machine tool, DAG is your first choice. Please send us your detailed requirements and get an instant quote now.
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