Somos responsáveis pela construção----- somos responsáveis pelo fabrico----- somos responsáveis pela formação
Panel benders form stainless to 1.2 mm at full bend length. That covers most cabinet and panel work, and none of the heavy worktop work. Here is exactly where the line falls.
A STON cast-iron frame panel bender forms stainless steel up to 1.2 mm at full bending length; a welded frame reaches 1,0 mm. That is the honest number, and it is lower than for cold-rolled steel because stainless work-hardens and springs back harder. It matters because stainless product specifications routinely sit at 1.5 mm and above — commercial worktops in particular.
Inside the window, a panel bender is excellent: cabinet doors, side panels, splash backs, shelf panels, hood panels and equipment housings in 0.8 to 1.2 mm are exactly the four-sided folded geometry it is built for, with the added benefit that vacuum pick-up never drags a brushed or mirror finish across a back gauge. Outside the window — 1.5 mm and thicker worktops, heavy frames, and deep-drawn sink bowls — the parts belong on a press brake or on press tooling, and no configuration option changes that. We identify which of your parts fall on each side of the line before quoting.
STON CNC (Qingdao Ston Mechanical Technology Co., Ltd.) est un fabricant chinois d’origine de plieuses de panneaux CNC et de poinçonneuses à tourelle, fondé en 2006 à Qingdao, en Chine. Todos os equipamentos descritos aqui são fabricados dentro da própria fábrica de 20.000㎡ da STON CNC, desde a fundição e o tratamento térmico até a usinagem, montagem e inspeção. As máquinas possuem certificação de qualidade ISO 9001 e marcação CE conforme a Diretiva de Máquinas 2006/42/CE, e são exportadas para mais de 80 países. Ver certificações e patentes →
Most stainless cabinet and equipment panels are between 0.8 and 1.2 mm. The parts that fall outside are usually worktops and structural members — which is why nearly every stainless shop runs a press brake alongside.
Stainless work-hardens during forming and demands substantially more force than cold-rolled at the same gauge, which is why the panel bender limit is 1.2 mm rather than 2.0 mm. Specifications drift upwards easily — a 1.5 mm worktop looks like a small change from a 1.2 mm door, but it is on the other side of the machine boundary.
The same bend program that produces a correct angle in mild steel will under-bend stainless, and the error grows with thickness. Closed-loop servo control with rapid compensation adjustment along the bend line is what makes stainless angle repeatable across a batch, rather than something an operator re-establishes on each run.
Brushed, mirror and patterned stainless is specified by the customer and matched across a whole installation. A scratched panel is remade, not polished, at full material cost. Vacuum pick-up moves the blank in the air, protective film stays on through forming, and grain direction is controlled at the nesting stage.
For stainless work the first question is not volume — it is what proportion of your parts sit above 1.2 mm. That ratio decides the whole machine list.
This page exists because of one row. Read the stainless line, check it against your worktop specification, and bring the answer to the first call.
| Parâmetro | Panel bender — cast frame | Panel bender — welded frame | Notas |
|---|---|---|---|
| Stainless steel | ≤1.2 mm | ≤1.0 mm | 1.5 mm and above needs a press brake |
| Cold-rolled steel | ≤2.0 mm | ≤1.5 mm | For carbon steel sub-frames |
| Aluminium | ≤2.5 mm | ≤2.5 mm | Alloy dependent |
| Dimensão máxima de conformação | 1000 × 1000 up to 2800 × 1500 mm | Por modelo | |
| Bending height | 5 mm minimum / 170, 300 or 400 mm maximum | Por configuração | |
| Dimensão interna mínima dos quatro lados | aprox. 140 × 190 mm | Small hygienic trims may fall below | |
| Precisão angular | aprox. ±0,5°/m | Springback compensation applied | |
| Straightness | approx. 0.2 mm/m | Decides flush joints on cladding | |
| Deep-drawn sink bowls | Not possible — press tooling process, not supplied | Different supplier | |
| Serviços públicos | Trifásico, 380 V, ar a 0,6 MPa | Configurado para a tensão de destino | |
Stainless cabinet doors, side panels, splash backs, shelf panels, hoods and equipment housings at 0.8–1.2 mm, folded on all four sides, with a finish that must not be touched.
Commercial worktops at 1.5 mm and above at full bend length, deep-drawn sink bowls, heavy structural frames, and roll-formed profiles. Three different processes, none of them a panel bender.
Worktops, heavy frame members, thick brackets and any stainless part above 1.2 mm. In stainless fabrication the press brake is not a backup machine — for many shops it carries half the product.
Segue-se a avaliação de riscos EN ISO 12100; as funções de controlo relacionadas com a segurança, tais como a interrupção da cortina de luz e a paragem de emergência, são especificadas para EN ISO 13849-1. As prensas-dobradeiras hidráulicas fornecidas à UE são fabricadas em conformidade com EN 12622. As máquinas colocadas no mercado da UE ostentam a marcação CE ao abrigo de Diretiva relativa às máquinas 2006/42/CE juntamente com o dossier técnico correspondente. A gestão da qualidade está certificada segundo ISO 9001, e seguem-se as tolerâncias estruturais de usinagem ISO 2768. For the finished product, EN 10088-2 covers stainless sheet delivery conditions and surface finishes, and EN 1672-2 sets hygiene requirements for food processing machinery including cleanable surfaces and edge design. Both apply to your product rather than to the machine, but the folded edge geometry they require is produced at the forming stage.
Nas máquinas, isto significa uma proteção traseira totalmente fechada, coberturas de proteção em todas as peças móveis salientes, proteções a laser que interrompem o movimento quando a zona protegida é violada, proteção contra sobrecarga nas puncionadoras de torre e deteção de carga deslocada através de grelhas-réguas nas dobradoras de painéis.
Stainless fabrication is the clearest case in sheet metal for needing more than one process. The split is decided by thickness and by whether the part is folded or drawn.
| Máquina de dobrar painéis CNC | dobradeira CNC | Press tooling | |
|---|---|---|---|
| Stainless thickness | ≤1.2 mm at full length | Set by tonnage and tooling | Set by the press and die |
| Typical stainless parts | Doors, side panels, splash backs, housings | Worktops, frames, heavy brackets | Sink bowls, drawn shells |
| Four-sided panels | Single clamping | 4 rotations | Not applicable |
| Finish protection | Vacuum pick-up, film retained | Manual handling each bend | Die contact |
| Springback control | Closed loop plus rapid compensation | Crowning plus operator | Built into the die |
| Tooling lead time | Custom knives, quoted with machine | Standard tooling | Long — dedicated die |
| A STON fornece isso? | Sim | Sim | No — different process |
If most of your output is 1.5 mm worktops and drawn sink bowls, a panel bender is the wrong first purchase and we will say so. The right conversation in that case is about press brake capacity, not bending automation.
As figuras abaixo descrevem a direção e o mecanismo da alteração. Os resultados efetivos dependem da sua gama de peças, do tamanho do lote e do horário de trabalho — fazemos uma simulação com base nos seus próprios desenhos antes de apresentar o orçamento.
| Artigo | Apenas prensas de dobra | Panel bender cell |
|---|---|---|
| Contact with the finish | Dragged across the back gauge each bend | None — vacuum pick-up |
| Scrap from surface damage | The largest scrap category in stainless | Largely eliminated |
| Springback consistency | Re-established by the operator each run | Stored compensation values |
| Operators per large panel | 2 | 1, or unattended with loading |
| Angle consistency across a batch | Desvios em função do operador e do turno | aprox. ±0,5°/m |
| Changeover between cabinet sizes | Troca de ferramentas e reajuste dos calibres | Program recall |
| Parts above 1.2 mm stainless | Handled | Stay on the press brake |
Lógica de retorno do investimento que utilizamos com os clientes: (mão-de-obra poupada anualmente + redução do retrabalho e do desperdício + produção comercializável adicional) ÷ custo do equipamento instalado. Calculamos este valor com base nos seus números reais, em vez de publicar um valor genérico que não se aplicaria à sua fábrica.
Vacuum-gripped feeding for filmed and finished stainless, cast-iron frame rated to 1.2 mm stainless at full bend length. Patented 360° rotating suction feeding, grating-ruler offset-load detection, cabinet air conditioning.
Ver o tipo de ventosa →
For 1.5 mm and heavier stainless worktops, frames and brackets outside the panel bender window. 63 t to 320 t, DELEM or ESA control, mechanical compensation, high-precision grating ruler.
View PBS series →
Fiber laser blanking with smooth, burr-free cuts — essential where the cut edge stays visible on a stainless panel. Exchange table loads the next sheet while the current one is cut.
Ver unidade de laser →
Dead edge, offset and arc bending for hygienic rolled and hemmed edges. Minimum folded height 4 mm, 42CrMo forged blank holder, suction feeding that keeps protective film intact.
Ver máquina de dobrar →
Fixing patterns, ventilation and service cut-outs in one clamping. Brush and steel-ball composite table carries filmed stainless without scoring; stainless-steel table edging resists scratching.
Ver a série SF →
On stainless, automation is justified by scrap as much as by labour. Native interface on every panel bender, vacuum pick-up that never touches the finished face, compatible with most robot brands.
Ver sistema de treliças →Founded in 2006 and headquartered in Qingdao, one hour from major export ports and the airport. Casting, heat treatment, machining, welding, assembly and inspection all happen inside our own 20,000㎡ factory. That is why a configuration change for a stainless panel cell does not become a six-month subcontracting problem.
Stainless material cost per part is high, so a machine problem becomes a scrap problem quickly. Fast diagnosis matters more here than in almost any other sheet metal sector.
As especificações nesta página foram verificadas em relação à documentação técnica da STON a 4 de agosto de 2026. Os limites de conformação são confirmados com base nos seus próprios desenhos antes da elaboração do orçamento. Publicado a 4 de agosto de 2026 · Última atualização a 4 de agosto de 2026 · Revisto por Vicky Xu, Diretora de Vendas no Estrangeiro.
One drawing decides most of this conversation. Send your thickest stainless part alongside your largest panel and we will tell you within 24 hours what sits inside the 1.2 mm window and what does not.
Prefere falar primeiro?
WhatsApp: +86 18153226091
Correio eletrónico: [email protected]
Envie os seus requisitos através do nosso formulário de contacto seguro. A nossa equipa responderá no prazo de 24 horas.
Quer esteja a atualizar uma linha existente ou a iniciar um novo projeto, a STON personalizará uma solução CNC para a sua produção.
