Somos responsáveis pela construção----- somos responsáveis pelo fabrico----- somos responsáveis pela formação
Cabin walls, car doors and landing doors up to 2800 mm in hairline and coated stainless — formed straight, formed consistent, and never touched on the decorative face.
An elevator cabin is a set of long, flat, decorative panels that must sit flush against each other with no visible step, twist or wave — and whose surface is the product. Cabin wall panels, car door leaves, landing door leaves, ceilings and skirtings are typically 1.0 to 1.5 mm stainless steel in hairline, mirror, etched or PVD-coated finish, or coated steel, at lengths from 2000 to 2800 mm.
That drives three requirements no general-purpose machine meets well: straightness held over the full panel length so adjacent panels join flush; angle repeatability across a whole cabin set, because errors accumulate at every joint; and zero contact with the decorative face from blank to stack. The working set is a laser de fibra for blanking, a Máquina de dobrar painéis CNC in D (2500) or D+ (2800) size with a cast-iron frame for the long panels, a máquina de dobragem de borda flexível where panels need dead edges or arc returns, and a travão de prensa for stainless above the panel bender's 1.2 mm limit.
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 →
Elevator sheet metal splits into two families: long decorative panels where surface and straightness decide acceptance, and structural backing parts in heavier coated steel. The same cell handles both, with different frames and different tooling.
On a cabin wall set, four panels sit side by side. An angle error of half a degree on each becomes a visible step at the joint. Straightness of roughly 0.2 mm/m and angle accuracy of roughly ±0.5°/m are what keep the set assembling without shimming on site.
Hairline, mirror and PVD finishes cannot be reworked. Every drag across a back gauge, every glove mark, every bench edge is a rejected panel at full material cost. Vacuum pick-up moves the blank in the air; the decorative face is never in contact with anything.
This is where most enquiries go wrong. A panel bender handles stainless up to 1.2 mm at full bend length on a cast-iron frame. Many landing door specifications call for 1.5 mm. That part belongs on a press brake, or on a shorter bend length — and we say so before quoting, not after.
For elevator work, machine size is chosen by your longest cabin panel, not by average part size. Buying one size down is the most expensive saving in this industry.
Read the stainless row carefully. It is the single most common mismatch in elevator enquiries, and we would rather lose the order than supply a machine that cannot form your landing door leaf at full length.
| Parâmetro | Panel bender — cast-iron frame | Panel bender — welded frame | Notas |
|---|---|---|---|
| Stainless steel | ≤1.2 mm | ≤1.0 mm | 1.5 mm stainless needs a press brake at full length |
| Cold-rolled / coated steel | ≤2.0 mm | ≤1.5 mm | Covers door frames and backing panels |
| Aluminium | ≤2.5 mm | ≤2.5 mm | Alloy dependent |
| Dimensão máxima de conformação | 2500 × 1500 mm (D) / 2800 × 1500 mm (D+) | Choose by your longest cabin panel | |
| Bending height | 5 mm minimum / 170, 300 or 400 mm maximum | Por configuração | |
| Bending angle | 0–180°, positive and negative | Dead edge on folding machine | |
| Precisão angular | aprox. ±0,5°/m | Decides flush joints between panels | |
| Straightness | approx. 0.2 mm/m | Critical over 2500 mm panels | |
| Precisão dimensional | approx. ±0.1 mm/m | Verified at commissioning | |
| Serviços públicos | Trifásico, 380 V, ar a 0,6 MPa | Configurado para a tensão de destino | |
Long decorative panels folded on all four sides in 1.0–1.2 mm stainless or coated steel, up to 2800 mm, where straightness and angle repeatability decide whether the cabin set assembles flush.
Roll-formed guide rails and door sill profiles, deep-drawn parts, and stainless above 1.2 mm at full bend length. Different processes, and in the case of rails, a different supplier entirely.
1.5 mm stainless landing door leaves, heavy structural brackets, sill and threshold parts, and low-volume special finishes. Nearly every elevator panel shop runs a press brake alongside the bender for exactly these.
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 lift installation, EN 81-20 e EN 81-50 set the safety and component test requirements your panels are designed against — the forming tolerances and joint consistency needed to satisfy them are established at the bending stage, not at final assembly.
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.
Elevator manufacturers need all three processes. The value of getting the split right is that each machine only does what it is efficient at.
| Máquina de dobrar painéis CNC | dobradeira CNC | Roll forming | |
|---|---|---|---|
| Part geometry | Flat panels folded on all four sides | Any bend line, any thickness in capacity | Constant cross-section profiles only |
| Typical elevator parts | Cabin walls, car doors, ceilings, architraves | 1.5 mm stainless door leaves, brackets, sills | Guide rails, door sill profiles, frame sections |
| Stainless capability | ≤1.2 mm at full bend length | Set by tonnage and tooling | Set by the roll set |
| Max panel length | 2800 mm | 4100 mm | Effectively unlimited |
| Straightness over 2.5 m | approx. 0.2 mm/m | Depends on crowning and operator | Excellent, but fixed section |
| Decorative face protection | Recolha por vácuo, sem contacto | Manual handling at every step | Line-dependent |
| Changeover between cabin models | Program recall, minutes | Tool change and gauge reset | Roll set change, hours to days |
| A STON fornece isso? | Sim | Sim | No — different process |
Guide rails and sill profiles are roll-formed and will keep coming from a specialist supplier. What the cell above replaces is the panel work, which is where the labour, the surface scrap and the assembly rework actually sit.
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 | Célula de dobragem de painéis com carregamento a vácuo |
|---|---|---|
| Operators per 2.5 m panel | 2, plus a third for turning on long sets | 1, or unattended with truss loading |
| Handling of the decorative face | Dragged across the back gauge each bend | No contact from blank to stack |
| Angle consistency across a cabin set | Drifts between panels and shifts | Closed-loop servo, approx. ±0.5°/m |
| Straightness over the panel length | Depends on crowning and operator skill | approx. 0.2 mm/m |
| Surface scrap on hairline stainless | The single largest scrap category | Largely eliminated |
| On-site shimming at installation | Common when joints do not sit flush | Reduced by consistent panel geometry |
| Changeover between cabin models | Tool swap, gauge reset, first-article check | Recuperação do programa e ajuste rápido da compensação |
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.
Cast-iron frame models to 2500 and 2800 mm forming length. Full-electric servo closed-loop control, ground lead screws with NSK bearings, grating-ruler offset-load detection, maintenance-free metal lubrication lines.
View press arm type →
Arc bending, dead edge and offset up to 2000 × 1500 mm. Up to 25 concurrent servo axes, 42CrMo forged blank holder, patented 360° rotating suction feeding for decorative panels.
Ver máquina de dobrar →
Exchange-table fiber laser with rotating platform so the next sheet loads while the current one cuts. Smooth, burr-free cuts on stainless, essential where the cut edge stays visible on an architrave.
Ver unidade de laser →
Fixing hole patterns, ventilation grilles and stiffening ribs in one clamping. Brush and steel-ball composite table protects filmed stainless; ±0.1 mm accuracy, X-axis to 2500 mm with secondary positioning to 5000 mm.
Ver a série SF →
Native interface on every panel bender, compatible with most robotic arm and gantry brands. On 2.5 m cabin panels this removes the two-person lift that causes most surface damage.
Ver sistema de treliças →
For 1.5 mm stainless landing door leaves and heavier frame parts that fall outside the panel bender window. Mechanical crowning compensation, high-precision grating ruler, multi-axis CNC back gauge.
View PBE series →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 2800 mm cabin panel line does not become a six-month subcontracting problem.
Elevator projects run to building handover dates. A panel that arrives with a visible joint step is rejected on site, not in your shop, so machine accuracy and fast support are the same conversation.
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.
Two drawings decide the machine: your longest panel and your thickest stainless part. Send those and we come back within 24 hours with a model recommendation and a clear split between panel bender and press brake work.
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.
Peça um orçamento personalizadoQuer esteja a atualizar uma linha existente ou a iniciar um novo projeto, a STON personalizará uma solução CNC para a sua produção.
