STON is a real sheet metal machine manufacturers China factory, supplying CNC panel benders, turret punch presses, CNC press brakes and laser cutting machines to global distributors, project integrators and OEM brand owners.If you are looking for a stable partner in China – a trusted cnc panel bender supplier, reliable turret punch press manufacturers, and an experienced cnc press brake manufacturer – STON brings all of these roles together under one roof. We operate as a genuine china panel bender factory, controlling R&D, machining, assembly and testing in-house. At the same time, we support OEM sheet metal machinery, sheet metal equipment wholesale and laser cutting machine distributor programs for different markets. This means you can source a full range of sheet metal machines from one manufacturer and build your own local brand or distribution network with confidence.
| No. | Name | 63/1500 | 63/2100 | 63/2550 | 100/3200 | 100/4100 | 150/3200 | 150/4100 | 220/3200 | 220/4100 | 250/3200 | 250/4100 | 320/3200 | 320/4100 | Unit | |
| 1 | Nominal pressure | 630 | 630 | 630 | 1000 | 1000 | 1500 | 1500 | 2200 | 2200 | 2500 | 2500 | 3200 | 3200 | KN | |
| 2 | Bending length | 1500 | 2100 | 2550 | 3200 | 4100 | 3200 | 4100 | 3200 | 4100 | 3200 | 4100 | 3200 | 4100 | MM | |
| 3 | Column spacing | 1200 | 1600 | 2050 | 2700 | 3600 | 2700 | 3600 | 2700 | 3600 | 2700 | 3600 | 2700 | 3600 | MM | |
| 4 | Cylinder stroke | 215 | 215 | 215 | 215 | 215 | 215 | 215 | 215 | 215 | 225 | 225 | 315 | 315 | MM | |
| 5 | Opening height | 580 | 580 | 580 | 580 | 580 | 580 | 580 | 580 | 580 | 580 | 580 | 680 | 680 | MM | |
| 6 | Throat Depth | 350 | 350 | 350 | 390 | 390 | 405 | 405 | 405 | 405 | 405 | 405 | 405 | 405 | MM | |
| 7 | Slider movement speed | quick Get off | 185 | 185 | 185 | 220 | 220 | 180 | 180 | 160 | 160 | 150 | 150 | 130 | 130 | MM/S |
| 8 | Work progress | 19 | 19 | 19 | 17 | 17 | 14 | 14 | 12 | 12 | 10 | 10 | 9.5 | 9.5 | MM/S | |
| 9 | Return | 180 | 180 | 180 | 210 | 180 | 180 | 170 | 160 | 150 | 150 | 140 | 120 | 110 | MM/S | |
| 10 | X-axis travel | 500 | 500 | 500 | 500 | 500 | 500 | 500 | 500 | 500 | 500 | 500 | 500 | 500 | 500 | |
| 11 | R-axis travel | 200 | 200 | 200 | 200 | 200 | 200 | 200 | 200 | 200 | 200 | 200 | 200 | 200 | 200 | |
| 12 | X-axis speed | 400 | 400 | 400 | 400 | 400 | 400 | 400 | 400 | 400 | 400 | 400 | 400 | 400 | 400 | |
| 13 | R-axis speed | 200 | 200 | 200 | 200 | 200 | 200 | 200 | 200 | 200 | 200 | 200 | 200 | 200 | 200 | |
| 14 | Main motor power | 8.7 | 8.7 | 8.7 | 10.8 | 10.8 | 13.2 | 13.2 | 16.7 | 16.7 | 16.7 | 16.7 | 22 | 22 | KW | |
| 15 | Hydraulic oil volume | 130 | 180 | 200 | 300 | 400 | 300 | 400 | 300 | 400 | 300 | 400 | 400 | 500 | L | |
| 16 | Dimensions (L*M*H) | 2000/1620/2470 | 2600/1620/2470 | 3150/1620/2470 | 3720/1720/2550 | 4620/1720/2550 | 3780/1730/2600 | 4680/1730/2600 | 3830/1800/2670 | 4730/1800/2670 | 3830/1800/2670 | 4730/1800/2670 | 3880/2100/3250 | 4760/2100/3250 | MM | |
| 17 | Machine tool thickness (vertical plate, slide, worktable) | 40/50/60 | 40/50/60 | 40/50/60 | 50/60/80 | 50/70/90 | 60/70/90 | 60/80/100 | 70/80/100 | 70/90/110 | 70/80/100 | 70/90/110 | 80/90/110 | 80/100/120 | MM | |
| 18 | Cylinder bore | 115 | 115 | 115 | 150 | 150 | 180 | 180 | 220 | 220 | 230 | 230 | 270 | 270 | MM | |
| 19 | Cylinder rod diameter | 110 | 110 | 110 | 145 | 145 | 173 | 173 | 210 | 210 | 220 | 220 | 260 | 260 | MM | |
| 20 | Machine weight | 4500 | 5000 | 6000 | 8500 | 10500 | 9200 | 11600 | 11000 | 13200 | 11000 | 13200 | 16800 | 19000 | kg | |
| 21 | Oil pump flow | 16 | 16 | 16 | 20 | 20 | 25 | 25 | 32 | 32 | 32 | 32 | 40 | 40 | L | |
STON’s factory, product range and service system are all built around long-term cooperation with overseas partners. Whether you are a dealer, a laser cutting machine distributor, an OEM brand owner or a project integrator, our goal is to make working with sheet metal machine manufacturers China simple, transparent and profitable.
STON PBS Series Electro-Hydraulic Servo Press Brake
STON PBS Series Electro-Hydraulic Servo Press Brake
Compared with traders, working directly with sheet metal machine manufacturers China like STON gives you stronger product support, better cost control and more flexible cooperation for OEM sheet metal machinery and sheet metal equipment wholesale.
In-house design and assembly of CNC panel benders
Stable supply as your long-term cnc panel bender supplier
Easier customization for special cabinet, door or furniture projects
CNC panel benders, turret punch presses, CNC press brakes, laser cutting machines
Work with one team instead of many suppliers
Better matching between machines for turnkey sheet metal lines
Machine color, logo, nameplates and interface language customizable
Technical specs can follow your local standards
Helping you build your own local brand image
Flexible policies for sheet metal equipment wholesale
Volume-based pricing for dealers and laser cutting machine distributor partners
Recommended spare parts list for your local stock
Support for complete sheet metal production lines
Engineering team helps with layout and machine selection
Good fit for project integrators and turnkey providers
Remote technical support and documentation in English
Training for your sales & service team
Long-term backup from the original sheet metal machine manufacturers China factory
For dealers, OEM brand owners and project integrators, “quality” is not only about machines. It also means accurate information, predictable delivery, clear technical support and trustworthy communication. STON treats every overseas partner as a long-term client of our china panel bender factory and cnc press brake manufacturer. From sample testing to final inspection and shipping, we keep you updated on real progress. This reduces your risk in front of end users and helps you build a reputation as a professional supplier in your own market.
Our CNC press brake machines consume only 40%–60% energy compared to traditional hydraulic press brakes, operate at noise levels as low as 75 dB, and cut maintenance costs by up to 50% (no need for hydraulic oil or frequent filter replacement). With 4–8 axis control, digital programming, intelligent compensation, and an intuitive human–machine interface, they adapt easily to small-batch customized production and large-scale efficient processing. The built-in fault self-diagnosis ensures quick troubleshooting and stable, long-term operation.
STON operates as a real sheet metal machine manufacturers China base, with dedicated workshops for machining, welding, assembly and electrical wiring. This allows us to control key parts of CNC panel benders, turret punch presses and CNC press brakes, ensuring consistent quality for every machine we deliver.
Our engineering team designs machines and production lines according to the needs of different industries. For partners who sell into electrical cabinets, metal furniture or ventilation, we can recommend machine specs and configurations that make your OEM sheet metal machinery more competitive.
We provide flexible OEM options, including custom machine colors, logos, nameplates, panel language and manual branding. This helps you present our machines as part of your own product family, whether you focus on panel benders, press brakes or full sheet metal equipment wholesale solutions.
Before shipping, each machine is tested with real material under full load. Key functions such as positioning accuracy, bending angles, punching quality and cutting performance are checked and recorded. You can share these test results with your customers to show that your cnc panel bender supplier and turret punch press manufacturers have strict quality control.
STON has experience shipping machines and lines to many countries. We help you choose cost-effective packing, loading and shipping options, prepare necessary export documents, and coordinate with your forwarders. This is especially important for sheet metal equipment wholesale and multi-machine orders.
We support partners with English manuals, wiring diagrams, operation videos and online training. For key markets and large projects, on-site commissioning and training can be arranged. This long-term backup makes it easier for you to act as a laser cutting machine distributor or full-line solution provider in your region.
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)
We are a real sheet metal machine manufacturers China factory. We design and assemble CNC panel benders, turret punch presses, CNC press brakes and other equipment in our own workshop.
Yes. Many partners buy panel benders, turret punch presses and press brakes together. One contact window for all machines makes service and spare parts easier.
Yes, we offer full OEM sheet metal machinery support, including branding, documentation and configuration adjustments. You can build your own product line while we remain the technical factory behind it.
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 press brake is a sheet metal bending machine that uses computer numerical control (CNC) to achieve precise, repeatable bends. Unlike a manual or conventional press brake, the CNC system programs the bending angle, backgauge position, and pressure, ensuring high accuracy and consistency in sheet metal forming.
A hydraulic press brake relies on hydraulic cylinders to apply bending force, offering strong tonnage for thick materials but requiring more maintenance.
A CNC press brake, on the other hand, combines servo motors and CNC control for greater precision, energy efficiency, lower noise, and easy programming. CNC press brakes are preferred for complex bending tasks, small-batch customization, and high-precision sheet metal production.
When choosing a press brake machine, consider:
Material thickness & length (determine tonnage and worktable size).
Production type (large-scale hydraulic press brake vs. flexible CNC press brake).
Automation needs (CNC system, servo drive, backgauge, crowning).
Budget & maintenance (CNC press brakes save 30–50% energy and reduce oil maintenance).
This ensures you select the most cost-effective solution for your sheet metal bending applications.
CNC press brakes are widely used in industries requiring precision sheet metal bending, such as:
Electrical cabinets and enclosures
Automotive and aerospace parts
Appliances and furniture sheet metal
Construction and HVAC equipment
Custom fabrication workshops
Proper maintenance of a press brake machine ensures accuracy and durability. Key practices include:
Regular lubrication of moving parts
Checking backgauge and grating ruler alignment
Cleaning hydraulic/electrical systems (for hydraulic press brakes)
Using proper bending tools and dies
Running self-diagnosis and CNC system checks
With regular care, CNC and hydraulic press brakes can deliver stable, long-term bending performance.
Commonly, it bends carbon steel, galvanized steel, stainless steel and aluminum sheets within the specified thickness range. Special materials can be evaluated case by case.
Hydraulic press brakes are robust and widely used for general bending. Servo press brakes offer lower energy consumption, higher positioning accuracy and quieter operation, suitable for high-precision or energy-sensitive applications.
Yes. The CNC control can store a large number of bending programs. Operators can quickly recall them when repeating the same parts, saving setup time.
Whether you're upgrading an existing line or starting a new project, STON will customize a CNC solution for your production.