Nous sommes responsables de la construction-----nous sommes responsables de la fabrication-----nous sommes responsables de la formation
Fume hoods, lab cabinets and instrument housings — many variants, small batches, cleanable edges, and a repeatability you can put in a technical file.
Medical and laboratory equipment is high-mix, low-volume, high-consequence work. A fume hood range, a lab cabinet programme and an instrument housing family together generate hundreds of part numbers in batches of tens, not thousands. That combination rules out dedicated tooling and rewards two capabilities in particular: tooling-free punching, so a new variant is a program rather than a die order, and program recall with stored compensation, so a part made six months ago is reproduced exactly rather than re-proved.
Two further requirements shape the process. Cleanability means folded, hemmed or dead edges rather than exposed cut edges, and radiused internal corners rather than sharp ones — geometry produced at the forming stage. And documentation means the same part must come out the same way batch after batch, because your quality system, not just your customer, depends on it. Program-driven forming with recorded compensation values is what makes that claim defensible.
STON CNC (Qingdao Ston Mechanical Technology Co., Ltd.) est un fabricant chinois de cintreuses de panneaux CNC et de presses à poinçonner à tourelle, fondé en 2006 à Qingdao, en Chine. Tous les équipements décrits ici sont fabriqués au sein même de l'usine de STON CNC, d'une superficie de 20 000 m², depuis la coulée et le traitement thermique jusqu'à l'usinage, l'assemblage et le contrôle qualité. Les machines sont certifiées ISO 9001 et portent le marquage CE conformément à la directive Machines 2006/42/CE ; elles sont exportées vers plus de 80 pays. Consulter les certifications et les brevets →
These products share a profile: coated or stainless sheet between 0.8 and 1.5 mm, folded on all four sides, in dozens of size variants across a single product range.
A laboratory fit-out generates bespoke cabinet widths and hood configurations that may never be ordered again in that exact form. Tooling-driven processes cannot absorb this. Turret punching from a program and bending with automatic tool change turn a new variant into an afternoon of engineering rather than a tooling lead time.
Exposed cut edges collect contamination and fail inspection. Hemmed and dead edges, radiused returns and closed corners have to be formed, and a flexible edge folding machine produces them directly with a minimum folded height of 4 mm. Adding them later, by hand, is where small-batch margin disappears.
Service parts, retrofits and repeat orders arrive years after the original batch. If the part was set up manually, it is re-derived by whoever is available. Program recall with stored angle and compensation values means the tenth production of a part is dimensionally the same as the first — which is what a documented quality system actually requires.
For this sector the driver is variant count rather than volume. Configure for changeover speed first and throughput second.
Medical and laboratory work sits comfortably inside the forming window on thickness. The constraints that bite here are part size at the small end and stainless gauge on hygienic products.
| Paramètres | Plieuse de tôles | Machine flexible de pliage des bords | Remarques |
|---|---|---|---|
| Typical gauge | 0.8–1.5 mm | 0.8–1.5 mm | Bien en deçà de la capacité maximale |
| Cold-rolled / coated max | ≤ 2,0 mm (moulé) / ≤ 1,5 mm (soudé) | 0,5 à 2,0 mm | À pleine longueur de flexion |
| Acier inoxydable max. | ≤ 1,2 mm (moulé) / ≤ 1,0 mm (soudé) | — | Check sterilizer and hygienic parts |
| Dimensions maximales de formage | jusqu'à 2 800 × 1 500 mm | de 1 200 × 1 200 à 2 000 × 1 500 mm | Par modèle |
| Min four-sided inner size | approx. 140 × 190 mm | 200 × 200 mm | Small instrument housings check here |
| Hauteur minimale de flexion | 5 mm | 4 mm | Hemmed cleanable edges |
| Procédés spéciaux | Positif et négatif, 0–180° | Arc, bord mort, décalage | Cleanable edges use dead edge |
| Punching accuracy | ±0.1 mm on turret punch press | Repeatability approx. ±0.01–0.02 mm | |
| Précision angulaire | approx. ±0.5°/m, straightness approx. 0.2 mm/m | Stored per part number | |
| Services publics | Triphasé 380 V, air comprimé à 0,6 MPa | Réglé sur la tension de destination | |
Four-sided panels and enclosures in 0.8–1.5 mm across many variants and small batches, with hemmed cleanable edges and dense service cut-outs. Changeover speed matters more here than cycle time.
Deep-drawn instrument bowls and pressed housings, extruded frame profiles, and small instrument enclosures whose four-sided inner size falls below the minimum forming dimension.
Small brackets, mounting plates, prototype housings and any part below the minimum four-sided forming size. In a high-variant shop the press brake also absorbs urgent service parts without interrupting the main cell.
L'évaluation des risques suit EN ISO 12100; les fonctions de commande liées à la sécurité, telles que l'interruption par barrière lumineuse et l'arrêt d'urgence, sont définies pour EN ISO 13849-1. Les presses plieuses hydrauliques fournies dans l'UE sont fabriquées conformément à EN 12622. Les machines mises sur le marché de l'UE portent le marquage CE conformément à Directive 2006/42/CE relative aux machines accompagné du dossier technique correspondant. Le système de gestion de la qualité est certifié selon ISO 9001, et les tolérances d'usinage des pièces structurelles sont les suivantes : ISO 2768. For the finished product, EN 14175-2 sets safety and performance requirements for fume cupboards and ISO 13485 governs quality management for medical devices. Neither is a machine standard — but a documented quality system requires demonstrable production repeatability, and stored bend programs with recorded compensation values are a practical part of that evidence.
Sur les machines, cela se traduit par un blindage arrière entièrement fermé, des capots de protection sur toutes les pièces mobiles saillantes, des barrières laser qui arrêtent le mouvement en cas d'intrusion dans la zone protégée, une protection contre la surcharge sur les poinçonneuses à tourelle, ainsi qu'un système de détection de charge décalée à grille et règle sur les plieuses de tôles.
In a high-variant shop this is a utilisation question. Most equipment manufacturers start with a laser and add punching when service cut-out patterns start repeating.
| Fiber laser | CNC turret punch | Punch-laser combined | |
|---|---|---|---|
| New variant, no tooling | Immediate | Within tooling library | Bien |
| Repeating service cut-outs | Pierces each feature | Fastest | Fastest |
| Louvres, ribs, thread prep | Non | Oui | Oui |
| Baffle slotting | Slow at density | Fast | Fast |
| Edge condition | Burr-free | Slight burr, deburr may be needed | Mixed |
| Floor space | Moderate | Moderate | approx. 40% less than both |
| Best time to buy | First machine | Once patterns repeat | When one part needs both |
| Est-ce que STON le fournit ? | Oui | Oui | Oui |
Cleanable edge geometry is not produced by either cutting process — it comes from folding. If hemmed edges are specified across your range, a flexible edge folding machine belongs in the cell regardless of which blanking route you choose.
Les figures ci-dessous illustrent l'orientation et le mécanisme de cette modification. Les résultats réels dépendent de la composition de vos pièces, de la taille des lots et de l'organisation des équipes ; nous les simulons en fonction de vos propres plans avant de vous soumettre un devis.
| Article | Press brakes and manual setup | Programmed punch and bend cell |
|---|---|---|
| New cabinet width variant | Full setup and first-article proving | Program edit and recall |
| Repeat of a part made two years ago | Re-derived by the operator | Recalled with stored compensation |
| Cleanable hemmed edges | Multiple setups or manual finishing | Single folding operation |
| Service cut-out patterns | Laser plus secondary operations | One clamping on the turret punch |
| Batch of 15 pieces | Setup dominates run time | Program recall, minimal setup |
| Dimensional evidence for the quality file | Operator records | Stored program and compensation values |
| Urgent service part | Immediate on a free brake | Interrupts the cell — keep a manual machine |
Logique de retour sur investissement que nous appliquons avec nos clients : (gain annuel en main-d'œuvre + réduction des retouches et des rebuts + production commercialisable supplémentaire) ÷ coût de l'équipement installé. Nous calculons ce chiffre à partir de vos données réelles, plutôt que de publier un chiffre global qui ne correspondrait pas à votre usine.
Service cut-outs, baffle slotting, ventilation patterns and thread preparation in one clamping without dedicated dies. ±0.1 mm accuracy, turret speed to 40 rpm, brush and steel-ball composite table for coated sheet.
Voir la série SF →
Program recall with stored angle and compensation values per part number, plus automatic tool change between variant families. Rapid compensation adjustment along the bend line after each part change.
Voir le type de bras de presse →
Dead edge, arc and offset bending with a 4 mm minimum folded height — how a cleanable hemmed edge is produced rather than hand-finished. 42CrMo forged blank holder, fully enclosed rear fencing.
Voir la plieuse →
Tooling-free blanking so a bespoke variant never waits for a die. Exchange table loads the next sheet while cutting, with burr-free edges on coated and stainless sheet.
Voir l'unité laser →
Repeating service patterns and one-off apertures on the same housing in one clamping, in roughly 40% less floor space than two machines, with no re-clamping between operations.
Voir la série SFL →
Brackets, mounting plates, prototypes and parts below the minimum four-sided forming size. Multiple process parameter sets recalled with one click, multi-axis CNC back gauge, no hydraulic oil.
Voir la série PBE →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 high-variant equipment cell does not become a six-month subcontracting problem.
Laboratory and hospital projects run to commissioning dates with penalties attached. A machine fault that delays a bespoke cabinet delays a room handover, which is why response time is part of the specification rather than an afterthought.
Les caractéristiques techniques figurant sur cette page ont été vérifiées par rapport à la documentation technique de STON le 4 août 2026. Les limites de formage sont confirmées par rapport à vos propres plans avant l'établissement du devis. Publié le 4 août 2026 · Dernière mise à jour le 4 août 2026 · Révisé par Vicky Xu, responsable des ventes à l'international.
Variant count and batch size decide the configuration, not headline volume. Send a range of drawings including your smallest housing and we return a configuration and a realistic changeover estimate within 24 hours.
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