Somos responsables de la construcción-----somos responsables de la fabricación-----somos responsables de la formación
Perforated doors, vented side panels and fan-cut top plates — thousands of holes per panel, at rack-grade pitch accuracy, without a scratch on the powder-coat.
A 19-inch rack is not a bending problem. It is a punching problem with bending attached. A single perforated front door can carry several thousand holes at high open area; side panels, top plates and cable managers add thousands more. That volume of holes, in 1.0 to 2.0 mm cold-rolled or galvanised sheet, is what decides the equipment — and it is why the primary machine here is a Punzonadora de torreta CNC, not a panel bender.
A servo turret punch completes perforation, louvring, fan cut-outs, cable entries, embossed ribs and thread preparations in one clamping, using nibbling and multi-tool stations rather than tracing every hole. A Plegadora de paneles CNC then folds the door and panel returns. A prensa plegadora covers brackets and shelves. What no sheet-metal machine produces is the 19-inch mounting upright — that is a roll-formed profile, a different process, and one STON CNC does not supply.
STON CNC (Qingdao Ston Mechanical Technology Co., Ltd.) es un fabricante chino de dobladoras de paneles CNC y punzonadoras de torreta, fundado en 2006 en Qingdao, China. Todo el equipo aquí descrito se fabrica en la planta propia de STON CNC, de 20 000 m², desde la fundición y el tratamiento térmico hasta el mecanizado, el ensamblaje y la inspección. Las máquinas cuentan con la certificación de calidad ISO 9001 y el marcado CE conforme a la Directiva de Maquinaria 2006/42/CE, y se exportan a más de 80 países. Ver certificaciones y patentes →
Rack production concentrates almost all of its machining time in a handful of heavily perforated panels. Get those off a laser and onto a turret punch and the whole shop rebalances.
Fiber laser is unbeatable on contours and one-off shapes. On a repeated hole array it pierces every hole individually, and the cycle time scales linearly with hole count. A turret punch nibbles and multi-hits with a single tool, so a heavily perforated door stops being the constraint on the whole line.
Removing 40 to 60 percent of the material out of a 1.5 mm door releases stress, and a warped door will not close on a rack. Punch sequencing, an over-tonnage protected striking system and a brush-and-ball composite table that supports the panel while it moves are what keep the blank flat enough to bend.
19-inch mounting geometry is defined by IEC 60297-3-100 and EIA-310 — a fixed 44.45 mm U pitch with a repeating hole group. Cumulative pitch error across 42U is what makes third-party equipment fail to fit. Positioning repeatability of roughly ±0.01 to 0.02 mm on a double rack-and-pinion drive is what holds it over a long panel.
For rack work, size the turret punch first and the bender second. The punch is where the hours go; the bender is rarely the constraint.
Rack sheet metal sits comfortably inside the forming window. The limit that matters on this page is not thickness — it is that mounting uprights are a roll-formed product and no punch or bender will make them.
| Parámetro | Turret punch press | Dobladora de paneles | Notas |
|---|---|---|---|
| Typical rack gauge | 1.0–2.0 mm | 1.0–2.0 mm | Bastante por debajo de la capacidad |
| Acero laminado en frío, máximo | Set by tonnage and tool | ≤2,0 mm fundido / ≤1,5 mm soldado | A lo largo de toda la longitud de flexión |
| Acero inoxidable, máximo | Set by tonnage and tool | ≤1,2 mm fundido / ≤1,0 mm soldado | For outdoor telecom enclosures |
| Max sheet in one position | X-axis 2500 mm | — | Secondary positioning to 5000 mm |
| Sheet width | Y-axis 1250 / 1500 mm | up to 1500 mm | — |
| Max sheet load | 150 kg | — | — |
| Precisión de punzonado | ±0,1 mm | — | Repetibilidad: aprox. ±0,01–0,02 mm |
| Turret speed | 40 rpm servo / 30 rpm mechanical | — | — |
| Tamaño máximo de conformado | — | hasta 2800 × 1500 mm | Por modelo |
| Servicios públicos | 380 V ±5%, aire a 0,55 MPa | Trifásico, 380 V, aire a 0,6 MPa | Configurado para el voltaje de destino |
Heavily perforated doors and vented panels in 1.0–2.0 mm, plus four-sided folded doors, side panels and plinths. Rack production is one of the strongest cases for pairing a turret punch with a panel bender.
19-inch mounting uprights, frame profiles and C-sections. These are roll-formed products from a different process and a different supplier — a turret punch can pierce a flat strip, but it cannot form the profile.
Shelves, cable arms, mounting brackets, castor plates and low-volume specials. One press brake alongside a punch-and-bend cell covers everything that should not tie up the main machines.
A continuación se presenta la evaluación de riesgos EN ISO 12100; las funciones de control relacionadas con la seguridad, como la interrupción de la cortina óptica y la parada de emergencia, se especifican para EN ISO 13849-1. Las prensas plegadoras hidráulicas que se importan a la UE se fabrican de acuerdo con EN 12622. Las máquinas comercializadas en el mercado de la UE llevan el marcado CE conforme a Directiva sobre maquinaria 2006/42/CE junto con el expediente técnico correspondiente. La gestión de la calidad cuenta con la certificación de ISO 9001, y a continuación se indican las tolerancias estructurales de las piezas mecanizadas ISO 2768. For the finished product, 19-inch rack geometry is defined by IEC 60297-3-100 y EIA-310, which fix the 44.45 mm U pitch and hole group spacing. Cumulative pitch accuracy over a 42U panel is set on the punch, and it is what determines whether third-party equipment mounts without reaming.
En las máquinas, esto implica una valla trasera completamente cerrada, cubiertas protectoras en todas las partes móviles que sobresalen, sistemas de protección con láser que detienen el movimiento cuando se traspasa la zona protegida, protección contra sobrecarga en las punzonadoras de torreta y detección de carga desalineada mediante rejilla y regla en las dobladoras de paneles.
This is the single most valuable decision in rack production, and the answer is not the same for every panel. Most shops that own both end up sending perforation to the punch and contours to the laser.
| Punzonadora de torreta CNC | Fiber laser cutting | Perfilado | |
|---|---|---|---|
| Repeated hole arrays | Fastest — multi-tool and nibbling | Slow — pierces every hole | Not applicable |
| Complex contours and one-offs | Limited to available tooling | Fastest — no tooling needed | Not applicable |
| Operaciones de conformado | Louvres, ribs, embossing, thread prep | Solo corte | Profile forming only |
| Tooling cost | Se requieren juegos de punzones y matrices | Ninguno | Roll set per profile, high |
| Condición de borde | Hay una pequeña rebaba; tal vez sea necesario desbarbarla | Smooth, burr-free | Cut to length |
| Rack parts it suits | Perforated doors, vented panels, cable managers | Custom cut-outs, prototypes, short runs | Mounting uprights, frame sections |
| Best combination | Punch-laser combined machine does both in one clamping, in roughly 40% less floor space than two separate machines | Separate supplier | |
| ¿Lo suministra STON? | Sí | Sí | No — different process |
If your rack range is built on roll-formed uprights with bolted-on panels, the cell above covers the panels — which is where the hole count, the labour and the flatness problems actually are. The upright line stays with your existing supplier and we will say so at drawing review.
Las figuras a continuación describen la dirección y el mecanismo del cambio. Los resultados reales dependen de su combinación de piezas, el tamaño del lote y el horario de trabajo; los simulamos según sus propios planos antes de presentar la cotización.
| Artículo | Fiber laser plus press brakes | Turret punch plus panel bender cell |
|---|---|---|
| Cycle on a perforated door | Scales with hole count, every hole pierced | Multi-tool and nibbling, largely independent of hole count |
| Louvres, ribs and embossing | Needs a second machine or manual operation | Completed in the same clamping as the holes |
| Panel flatness after perforation | Entrada de calor más liberación de tensiones | Mesa de soporte, punzonado secuenciado, protección contra sobrecarga |
| Superficie del panel recubierto | Marcas de manipulación entre máquinas | Mesa compuesta de cepillo y bola de acero, transferencia automática |
| Four-sided door forming | 2 operators, 4 rotations | 1 operator, single clamping |
| U-pitch accuracy over a 42U panel | Depends on nesting and re-clamping | ±0.1 mm machining accuracy, repeatability approx. ±0.01–0.02 mm |
| Consumables | Laser gas, optics, nozzles | Punch and die wear, longer service intervals |
La fórmula de recuperación de la inversión que utilizamos con los clientes: (mano de obra liberada anualmente + reducción de la reelaboración y los desechos + producción vendible adicional) ÷ costo del equipo instalado. Calculamos esto con tus cifras reales, en lugar de publicar una cifra general que no se ajustaría a tu planta.
Turret speed to 40 rpm, ±0.1 mm accuracy, X-axis 2500 mm with secondary positioning to 5000 mm. Patented dual-triangle beam mount, double dovetail feeding, independent dual rotary stations, brush and steel-ball composite table.
Ver la serie SF →
Perforation, forming and laser contour cutting in one clamping. Roughly 40% less floor space than separate punch and laser machines, and no secondary alignment between the hole array and the cut-out.
Ver la serie SFL →
Flywheel-driven striking system for continuous high-frequency punching, 30 rpm turret, over-tonnage protection, stainless-steel edged table. Suited to long runs of a stable perforation pattern.
View JT series →
Folds doors, side panels and plinths from one clamping, up to 2800 mm. Full-electric servo closed-loop control, rapid compensation adjustment for switching between rack heights, grating-ruler offset-load detection.
Ver el tipo de brazo de prensa →
Exchange-table fiber laser for custom cut-outs, prototypes and short runs that do not justify tooling. Runs alongside the turret punch rather than replacing it.
Ver unidad láser →
Automatic sheet separation, positioning, unloading and stacking. On perforated panels this matters twice over — it removes handling marks and it keeps the punch fed at its actual cycle rate.
Ver sistema de vigas →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 perforated door line does not become a six-month subcontracting problem.
Data centre and telecom projects run to fixed installation windows. A stopped turret punch stops every downstream operation in a rack shop, so response time is part of the specification, not an afterthought.
Las especificaciones de esta página se verificaron con la documentación técnica de STON el 4 de agosto de 2026. Los límites de conformado se confirman con base en sus propios planos antes de emitir la cotización. Publicado el 4 de agosto de 2026 · Última actualización: 4 de agosto de 2026 · Revisado por Vicky Xu, jefa de ventas internacionales.
With the real hole pattern we can program the part, return an actual cycle time rather than a brochure figure, and tell you whether a servo or mechanical turret suits your mix.
¿Prefieres hablar primero?
WhatsApp: +86 18153226091
Correo electrónico: [email protected]
Envía tus requisitos a través de nuestro formulario seguro de consultas. Nuestro equipo te responderá en un plazo de 24 horas.
Solicite una cotización personalizadaTanto si está actualizando una línea existente como si está iniciando un nuevo proyecto, STON personalizará una solución CNC para su producción.
