Looking for a Trusted Industrial Equipment Partner?
Custom-built bending solutions for your sheet metal production — High precision, fast delivery, and full technical support.
Send Us E-mail
Get In Touch

    Please wait while the form is being submitted....

    Sheet Metal Machine Manufacturers in China for OEM & Wholesale Partners

    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.

    Get a Free Quote
    Pure Electric1
    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
    Expand all parameters

    Designed for Global Sheet Metal Equipment Cooperation

    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

    STON PBS Series Electro-Hydraulic Servo Press Brake

    STON PBS Series Electro-Hydraulic Servo Press Brake

    STON PBS Series Electro-Hydraulic Servo Press Brake

    STON PBS Series Electro-Hydraulic Servo Press Brake

    Key Features That Maximize Your Partnership Value

    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.

    Real China Panel Bender Factory

    • 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

    Full Product Range from One Source

    • 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

    OEM Sheet Metal Machinery Support

    • Machine color, logo, nameplates and interface language customizable

    • Technical specs can follow your local standards

    • Helping you build your own local brand image

    Wholesale & Distributor Friendly

    • 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

    Engineering and Project Experience

    • Support for complete sheet metal production lines

    • Engineering team helps with layout and machine selection

    • Good fit for project integrators and turnkey providers

    Stable After-Sales & Training

    • 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

    Cooperation Quality at Its Best

    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.

    Cabinet Manufacturing
    Electrical Cabinet Doors
    Environmental Ventilation
    Furniture

    System Modules Behind Our Sheet Metal Machinery Partnership

    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.

    01

    Factory & Production

    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.

    Backgauge Motor

    02

    Engineering & R&D

    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.

    Grating Ruler

    03

    OEM Branding

    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.

    Laser Hands Protection Device (Optional)

    04

    Quality & Testing

    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.

    Back Gauge Structure

    05

    Logistics & Shipping

    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.

    ESTUN Servo Motor

    06

    After-Sales & Training

    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.

    Bending And Positioning Avoidance Die

    Client Factory Tours

    Experience Our Manufacturing Excellence Firsthand

    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.

    Anthony

    With STON’s panel bender, our bending accuracy improved significantly, and we reduced labor by 40%. The ROI was achieved in under a year.

    Procurement Manager, HVAC

    Component Factory (Germany)

    Jeffrey

    “Thanks to the customization from STON’s team, our production line now runs 30% faster with better product consistency.”

    Factory Owner, Stainless Kitchenware

    Manufacturer (USA)

    Jared

    “Stable, precise, and easy to operate — STON’s panel bender has boosted our output and cut labor costs.”

    – Operations Director, Electrical Cabinet

    Factory (Canada)

    FAQ About Working with Sheet Metal Machine Manufacturers in China

    FAQ

    Are you a trading company or a real manufacturer?

    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.

    Can you support us as a cnc panel bender supplier and turret punch press manufacturers at the same time?

    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.

    Do you provide OEM sheet metal machinery under our own brand?

    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.

    What is your after-sales response time in the event of a malfunction? How do you provide technical support?

    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.

    What is the warranty period for your various sheet metal processing equipment? What does the warranty cover?

    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.

    For long-term use, is the warranty extended? How are extended warranty plans formulated?

    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.

    What payment methods are available for equipment purchases? Do you support international payment terms?

    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.

    What is a CNC Press Brake and how does it work?

    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.

    What is the difference between a Hydraulic Press Brake and a CNC Press Brake?

    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.

    How do I choose the right Press Brake Machine for my business?

    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.

    What industries use CNC Press Brakes?

    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

    How to maintain a Press Brake Machine for long-term performance?

    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.

    What materials can the press brake bend?

    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.

    What is the difference between hydraulic and servo press brakes?

    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.

    Can the machine store programs for repeat orders?

    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.

    Get a Quote Now

    Send Us Your Needs — We’ll Get Back in 24h

    Whether you're upgrading an existing line or starting a new project, STON will customize a CNC solution for your production.