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The flexible bending center is compatible with a variety of materials such as stainless steel and aluminum alloy, and can process workpieces with a thickness of 0.15-2mm. There is no need to configure equipment separately, which greatly reduces investment and is perfectly adapted to multi-variety and small-batch production
| STON-A2 | STON-B2 | STON-C2 | STON-D2 | STON-E2 | |
| Max. bending speed | 0.2s/knife | 0.2s/knife | 0.2s/knife | 0.2s/knife | 0.2s/knife |
| Max. bending length (CM) | 1000*1000 | 1400（1600）*1250 | 2000*1500 | 2500*1500 | 3200*5100 |
| Max. bending height (mm) | 170/300 | 170/300 | 170/300 | 170/300 | 170/300 |
| Min. bending thickness (mm) | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 |
| Min. four-sided forming size(mm) | 140×190 | 140×190 | 140×190 | 140×190 | 140×190 |
| Single-sided forming size(mm) | 140 | 140 | 140 | 140 | 140 |
| Rated voltage | 380V | 380V | 380V | 380V | 380V |
| Max. bending thickness (mm) | Stainless steel 1.2 Cold plate 2.0 Aluminum plate 2.5 |
Stainless steel 1.2 Cold plate 2.0 Aluminum plate 2.5 |
Stainless steel 1.2 Cold plate 2.0 Aluminum plate 2.5 |
Stainless steel 1.2 Cold plate 2.0 Aluminum plate 2.5 |
Stainless steel 1.2 Cold plate 2.0 Aluminum plate 2.5 |
| Dimensions (CM) | L* W *H 370 * 150 * 280 |
L* W *H 450 * 200（220） * 280 |
L* W *H 510 * 270 * 280 |
L* W *H 570 * 310 * 280 |
L* W *H 700 * 380 * 280 |
| Feeding table | Brush, universal ball | Brush, universal ball | Brush, universal ball | Brush, universal ball | Brush, universal ball |
| Hinge knife | Standard | Standard | Standard | Standard | Standard |
| Advanced command | Standard | Standard | Standard | Standard | Standard |
| Bias load detection function | Standard | Standard | Standard | Standard | Standard |
| Bias load follow-up function | Standard | Standard | Standard | Standard | Standard |
| Plate thickness detection function | Standard | Standard | Standard | Standard | Standard |
| Automatic feeding interface | Standard | Standard | Standard | Standard | Standard |
| High speed control module | Standard | Standard | Standard | Standard | Standard |
The STON A2–F2 CNC bending series covers a max bending length of 1000–4100 mm and delivers precise forming across multiple materials: stainless steel (SS) up to 1.2 mm, cold-rolled steel (CRS) up to 2.0 mm, aluminum (AL) up to 2.5 mm, and carbon steel (CS) up to 1.2 mm. For projects with different rigidity, damping, and cost targets, the A2/B2/C2 models (below D2) are available with either welded or cast machine frames. Upfront, our pre-sales engineers review your drawings and provide complimentary sample parts to validate feasibility, optimize bend programs and tooling, and accelerate ramp-up while improving first-pass yield.
STON panel bender can be connected to the robot and truss automatic loading and unloading equipment.Fully electrical Servo System,easy to operate.With a remarkable bending speed of only 0.2 seconds per bend,3-4 times faster than press brake.Low Maintenance and Tool Cost.
Automated sequencing delivers stable bending with minimal manual input. Perfect for high-efficiency CNC panel bender operations.
Servo drives ensure ±0.1mm precision. This automatic panel bender works 3× faster than press brakes.
Easy-to-use interface for fast setup and control. Boosts panel bender efficiency and operator comfort.
Heavy-duty frame reduces vibration for clean bends. Built for tough sheet metal panel bending tasks.
Switch tools manually or automatically. Supports flexible workflows in auto bender machines.
Connects to robots or gantry systems for full automation. Ideal for automated sheet metal bending lines.
Our CNC Sheet Metal Panel Benders are widely applied across industries requiring precision and consistency in metal part forming. From medical device enclosures to home appliance panels, electrical cabinet doors, and tool cabinets, our machines ensure efficient, high-quality cnc sheet metal bending. Ideal for both high-volume production and custom sheet metal bending equipment applications.
Explore the key components that make our CNC sheet metal bending equipment reliable, precise, and durable. Each part—from servo motors to control systems—is designed for long-term performance and efficiency. Whether you’re running a high-speed automatic panel bending machine or need flexible configurations for custom tasks, our panel bender accessories ensure seamless operation and accuracy.
The panel bender body is made of high-grade QT500-7 cast iron or Q235 welded steel, processed through stress-relief annealing and aging treatment. This ensures structural rigidity and long-term stability for high-precision CNC sheet metal bending operations.
An industrial-grade air conditioning system keeps the electrical cabinet at optimal temperature, preventing overheating and ensuring continuous operation—even in high-temperature workshops.
Crafted from 42CrMo forging, our bending knives undergo heat treatment and laser quenching to ensure tool durability and precision, supporting various material types and panel thicknesses.
Imported full-servo closed-loop system with up to 25-axis linkage. Built-in interfaces allow seamless integration with robotic arms and automatic loading/unloading systems, enabling intelligent sheet metal bending automation.
High-torque servo motors (domestic/imported) ensure real-time feedback and closed-loop precision via bus communication, avoiding data loss and enhancing stability.
The manual handwheel enables precise knife positioning during calibration and maintenance, reducing tool damage and setup time during testing.
All electronics are sourced from internationally trusted brands, featuring high anti-interference capacity, remote fault diagnostics, and Ethernet-based monitoring for smart maintenance.
Compensates for bending deviations due to material thickness or part length. This feature minimizes angle and straightness error across all sheet metal sizes.
Real-time bias load detection protects the machine and reduces part rework by monitoring bending pressure and part alignment.
A copper-piped auto-lubrication system ensures proper greasing of guide rails and screw rods, outlasting conventional plastic lines and reducing mechanical wear.
Unlike gravity-based knives, the electric hinge system gently engages with the workpiece, preventing scratches or dents during high-speed folding.
Optional tooling for complex bending shapes. Modular design makes it easy to adapt the machine for multi-process and non-standard parts.
Enables U-axis cooperation for lifting and down-folding actions, preventing damage during withdrawal—ideal for complex part geometries.
We believe in building strong, transparent relationships with our clients. That’s why we invite our partners to visit our state-of-the-art manufacturing facility and see our production process up close.
AnthonyProcurement Manager, HVAC
Component Factory (Germany)
JeffreyFactory Owner, Stainless Kitchenware
Manufacturer (USA)
Jared– Operations Director, Electrical Cabinet
Factory (Canada)
Yes, we offer a one-stop service: “on-site installation + commissioning + customized training.” Professional engineers will visit the customer’s site to complete production line assembly and equipment integration commissioning to ensure the line reaches its designed capacity. We also provide theoretical and practical training for operators (6-8 days), covering equipment operation, routine maintenance, and troubleshooting. After the training, we provide an operator manual and video tutorials.
Yes, we offer a one-stop service: “on-site installation + commissioning + customized training.” Professional engineers will visit the customer’s site to complete production line assembly and equipment integration commissioning to ensure the line reaches its designed capacity. We also provide theoretical and practical training for operators (6-8 days), covering equipment operation, routine maintenance, and troubleshooting. After the training, we provide an operator manual and video tutorials.
Customized services are available. We will optimize the machine structure based on the customer’s workshop space, load capacity, and processing requirements. While ensuring processing accuracy, we adapt the machine to the shop’s existing power and air supply conditions to ensure smooth installation and efficient operation.
We have established a 24-hour global after-sales response mechanism: Customers can submit troubleshooting reports via phone, email, or online customer service, and a preliminary solution will be provided within 1 hour. If remote debugging is required, an engineer will provide video guidance within 2 hours. For hardware repairs, domestic customers will receive a visit within 48 hours, while overseas customers can use authorized service centers or expedited delivery of parts (with installation instructions) to ensure a quick resolution.
All of our standard equipment (flexible bending centers, CNC turret punch presses, press brakes, and punching and shearing machines) comes with a one-year free warranty. For some products with higher system complexity, the warranty period can be extended to 18 months. The warranty covers repair and replacement of quality issues with core components (such as servo motors, CNC systems, and guide rails), as well as free on-site inspections during the warranty period. Please note that equipment failures caused by human error, force majeure (such as floods and earthquakes), or failure to follow the maintenance manual are not covered by the free warranty, but paid repair services are available.
Extended warranties are available, with coverage ranging from 1 to 3 years. These plans are customized based on the equipment type, frequency of use, and customer needs. A one-year extension for a single device costs approximately 3%-5% of the total price, while bulk extensions for multiple devices or fully automated production lines offer a 20% discount. During the extended warranty period, in addition to core component repairs, customers also receive a free annual comprehensive equipment inspection and maintenance service to help them proactively identify potential faults and extend the life of their equipment.
We offer flexible payment options to meet the needs of domestic and international customers: ① Telegraphic Transfer (T/T): 30% prepayment, 70% before equipment leaves the factory; ② Letter of Credit (L/C): We accept irrevocable letters of credit issued by the customer’s partner bank at sight to ensure the security of funds for both parties. All payment methods comply with international trade practices and support mainstream settlement currencies such as the US dollar and the euro.
A CNC panel bender is a type of sheet metal bending equipment that automatically bends metal panels into precise shapes using programmable servo-controlled arms and blades. Unlike traditional press brakes, a CNC panel bender performs both up and down bending operations in one cycle, offering higher precision, faster cycle times, and less manual handling.
Our automatic panel bender is compatible with a wide range of sheet metal materials, including stainless steel, cold-rolled steel, galvanized steel, and aluminum alloy. It can process material thicknesses from 0.15mm to 2.0mm, making it ideal for both thin-gauge electronics enclosures and heavy-duty industrial panels.
While both machines are used for bending sheet metal, a CNC panel bending machine offers automated folding from all directions without needing to reposition the part manually. This improves bending consistency, reduces setup time, and is better suited for high-volume or multi-variety batch production. In contrast, press brakes require manual positioning and multiple tool changes.
Yes. Our sheet metal panel benders can be seamlessly integrated with robotic arms, truss loading/unloading systems, and automated stacking lines. This enables full production line automation—from raw material feeding to finished part output—boosting efficiency and reducing labor costs.
CNC sheet metal bending equipment is widely used in:
Medical equipment housings、HVAC panels and ventilation units、Electrical cabinets and distribution boards、Toolboxes, shelves, and lighting fixtures
These industries demand high-precision, repeatable bends, and our panel bender is built to meet those expectations.
Whether you're upgrading an existing line or starting a new project, STON will customize a CNC solution for your production.
