Our CNC Flame Cutting Services
Bisogno Taglio a fiamma CNC that delivers high-speed, economico, and precise metal cutting for large-scale projects? Our services leverage advanced thermal cutting tecnologia, decades of competenza, and state-of-the-art CNC systems to handle thick steel plates, custom metal components, and high-volume fabrication—ideal for construction, costruzione navale, e macchinari pesanti. Whether you need large structural parts or intricate custom cuts, Ci combiniamo Alta efficienza and consistent quality to meet your deadlines and specifications.
What Is CNC Flame Cutting?
Taglio a fiamma CNC (also known as CNC Oxygen Fuel Cutting) è un thermal cutting process that uses a controlled flame and a jet of pure oxygen to cut through ferrous metals (metals containing iron). Unlike manual flame cutting, which relies on human guidance, CNC (Controllo numerico del computer) flame cutting uses pre-programmed software to control the tool path, velocità di taglio, and oxygen flow—ensuring precise, repeatable cuts on large or thick workpieces.
Il nucleo concetto Di Taglio a fiamma CNC lies in its reliance on oxidation: the flame (typically fueled by acetylene, propano, or natural gas) preheats the metal to its ignition temperature (around 870°C for steel), then a high-pressure oxygen jet is directed at the heated area. This oxygen reacts with the iron in the metal, creating intense heat (up to 3,150°C) that melts and blows away the molten metal—forming a clean cut. It is the most widely used flame cutting process per acciaio spesso (10mm–300mm) due to its cost-effectiveness and versatility.
| Termine chiave | Meaning | Role in CNC Flame Cutting |
| CNC Flame Cutting | Computer-controlled oxygen-fuel thermal cutting process | Automates cutting parameters for precision and consistency across large/thick workpieces |
| Flame Cutting Process | Thermal cutting method using preheating flame + oxygen jet | Core operation that melts and removes metal to form desired shapes |
| Thermal Cutting | General category of cutting processes using heat (not mechanical force) | Encompasses CNC Flame Cutting, taglio del plasma, and laser cutting—CNC Flame Cutting is optimal for thick ferrous metals |
| Oxygen Fuel Cutting | Synonym for CNC Flame Cutting; uses oxygen + fuel gas for cutting | Provides the high heat needed to cut through thick steel (10mm+) |
Le nostre capacità: What We Offer in CNC Flame Cutting
Con 25+ anni di esperienza and deep technical competenza in thermal cutting, our team handles everything from small custom parts to massive structural steel plates. We don’t just offer standard cutting—we tailor our services to match your project’s unique needs, whether you’re fabricating ship hulls or heavy machinery components.
Our Core CNC Flame Cutting Capabilities
| Capacità | Dettagli | Applicazioni tipiche |
| Custom Flame Cutting | Design and execute non-standard cuts (PER ESEMPIO., irregular shapes, beveled edges, tacche) for unique components; works with 2D/3D CAD designs | Custom machinery frames, shipbuilding structural parts, parentesi di costruzione |
| Precision Flame Cutting | Raggiungere dimensional tolerance of ±0.5mm/m (±0.02” per foot) E tagliare la precisione of ±0.3mm for parts up to 10m long; ideal for tight-fitting assemblies | Aerospace ground support equipment, heavy machinery joints, precision fabrication parts |
| Range of Services | Straight cutting, bevel cutting (0°–45°), hole cutting (minimum diameter: 15mm), slot cutting, and contour cutting; handles single parts or batch production | Construction steel beams, ship hull plates, Componenti della fornace industriale |
| Large-Scale Cutting | Process workpieces up to 12m (40ft) in length, 3M (10ft) in width, and 300mm (12In) in thickness; supports multi-plate stacking (fino a 5 piatti, total thickness 150mm) | Bridge structural parts, offshore platform components, large pressure vessel shells |
| Produzione ad alto volume | Cut up to 500 parts per shift with automated loading/unloading systems; optimized for repetitive cuts (PER ESEMPIO., standard steel brackets) | Mass-produced construction connectors, heavy machinery base plates, automotive chassis components |
La nostra flotta include 8 CNC flame cutting machines (with gantry-style frames for large workpieces) and specialty tools for bevel cutting and precision holes. We’ve delivered projects for clients in 12+ Industrie, proving our ability to scale from prototypes to large-scale fabrication.
Processo: How CNC Flame Cutting Works
IL CNC Flame Cutting process (Chiamato anche Oxygen Fuel Cutting) è strutturato, step-by-step workflow designed to ensure safety, precisione, and efficiency—critical for working with high heat and thick metals.
Step-by-Step CNC Flame Cutting Operation Procedure
- Configurazione della macchina: The metal workpiece (typically steel plate) is cleaned (to remove rust, colore, or oil—contaminants can affect cut quality) and secured to the machine’s cutting table using clamps or magnetic chucks. Our technicians load the CNC program (created from your CAD design) into the machine’s control system, which defines the tool path, velocità di taglio, preheat temperature, and oxygen pressure.
- Preparazione degli strumenti: The cutting torch (equipped with separate nozzles for preheating and oxygen jet) is calibrated. We select the nozzle size based on material thickness: larger nozzles for thick steel (100mm+) to deliver more heat and oxygen, smaller nozzles for thin steel (10mm–50mm) for precise cuts.
- Cutting Sequence:
- Preriscaldare: The torch moves to the starting point and uses the fuel gas (PER ESEMPIO., acetylene) + air mixture to preheat the metal to its ignition temperature (870°C for steel)—visible as a bright red glow.
- Ignition & Taglio: Once preheated, the high-pressure oxygen valve opens, directing a jet at the heated area. The oxygen reacts with iron to create molten oxide, which is blown away by the oxygen flow—starting the cut.
- Following Tool Path: The CNC system moves the torch along the pre-programmed tool path at a constant speed (50–500 mm/min, depending on material thickness: slower for thick steel, faster for thin steel). For bevel cuts, the torch tilts to the desired angle (0°–45°) using a rotary axis.
- Controllo di qualità: Dopo aver tagliato, the workpiece is cooled (naturally or with water spray) and inspected. We use tape measures, calibri, and laser measuring tools to verify dimensional tolerance E tagliare la precisione; we also check for dross (molten metal residue) on the cut edge.
- Post-Cutting Processing: Dross is removed via grinding or deburring (part of our standard service), and the workpiece is prepared for Trattamento superficiale (PER ESEMPIO., painting or heat treatment) se necessario. The machine resets for the next workpiece—automated systems reduce downtime for high-volume runs.
Cycle time depends on material thickness and cut length: a 1m-long cut on 50mm steel takes ~2 minutes, while a 5m-long cut on 200mm steel takes ~15 minutes.
Materiali: What Can We Cut with CNC Flame Cutting?
CNC Flame Cutting is optimized for flame cutting materials that contain iron (metalli ferrosi), as the process relies on iron oxidation to generate heat. It works poorly on non-ferrous metals (PER ESEMPIO., puro alluminio, rame) because they do not oxidize at the required temperature—for these, we recommend plasma or laser cutting.
Common Materials for CNC Flame Cutting
| Tipo di materiale | Esempi | Proprietà chiave | Applicazioni ideali |
| Acciaio | Acciaio dolce (A36), acciaio al carbonio (S45C), acciaio in lega (4140) | High iron content (95%+), easy to oxidize, economico; gamma di spessore: 10mm–300mm | Travi di costruzione, ship hull plates, cornici di macchinari, pressure vessels |
| Acciaio inossidabile | Austenitic stainless steel (304, 316) | Contains iron (60%–70%) but also chromium (18%+), which forms a protective oxide layer; requires higher preheat temperature | Industrial furnace parts, Attrezzatura di lavorazione chimica, food-grade machinery |
| Ferro | Cast iron (gray iron, ductile iron) | High iron content (90%+), brittle but durable; gamma di spessore: 20mm–250mm | Blocchi del motore, raccordi per tubi, heavy machinery bases |
| Other Ferrous Metals | Accensione ad alta resistenza (HSLA) acciaio, weathering steel (Corten A) | HSLA: Alta resistenza, Peso basso; weathering steel: Resistente alla corrosione | Bridge components (HSLA), strutture esterne (weathering steel) |
Nota: Metalli non ferrosi (alluminio, rame, ottone) are not suitable for CNC Flame Cutting—their oxide layers melt at higher temperatures than the base metal, preventing clean cuts. Per questi materiali, we offer complementary plasma cutting services. We optimize cutting parameters for each material: per acciaio dolce (A36), we use acetylene fuel (alto calore) E 50 psi oxygen pressure; per acciaio inossidabile (304), we use propane fuel (slower preheat) E 60 psi oxygen pressure to penetrate the chromium oxide layer.
Trattamento superficiale: Enhancing Cut Quality & Durata
After CNC Flame Cutting, Trattamento superficiale (O finitura) is critical to improve the workpiece’s appearance, durata, and functionality—especially for parts exposed to harsh environments (PER ESEMPIO., costruzione, costruzione navale) or requiring tight fits (PER ESEMPIO., macchinari).
Our Surface Treatment Options for CNC Flame Cut Parts
| Treatment Type | Processo | Benefici | Casi d'uso tipici |
| Macinazione | Using abrasive wheels to remove dross (molten metal residue) and smooth cut edges; achieves surface roughness of Ra 3.2–6.3 μm | Eliminates sharp edges, improves fit for assembly, removes corrosion-prone dross | Machinery joints, structural steel connections, precision fabrication parts |
| Sfacciato | Manual or automated removal of small burrs (metal projections) from cut edges; uses wire brushes or deburring tools | Prevents injury during handling, improves aesthetic quality, ensures proper part alignment | Componenti del telaio automobilistico, corrimano, consumer-facing metal parts |
| Pittura | Applying industrial paint (epossidico, smalto) via spray or brush; provides UV and corrosion resistance | Outdoor construction parts (raggi, parentesi), componenti dello scafo navale, machinery exteriors | |
| Rivestimento | Applying protective layers (rivestimento di zinco, rivestimento in polvere); zinc coating prevents rust, powder coating adds durability | Construction connectors (rivestimento di zinco), attrezzatura industriale (rivestimento in polvere) | |
| Trattamento termico | Ricottura (ammorbidimento) o estinzione (indurimento) the cut part to adjust mechanical properties; reduces internal stress from cutting heat | Heavy machinery shafts (indurimento), parti strutturali (annealing to prevent cracking) | |
All our surface treatments meet industry standards: our zinc-coated parts pass ASTM B633 salt spray tests (800+ hours of corrosion resistance), and our ground edges meet ISO 8787 standards for smoothness—critical for tight-fitting machinery components.
Tolleranze: The Precision We Deliver
While CNC Flame Cutting is not as precise as laser cutting (due to thermal expansion of metal), our process is optimized to achieve tight tolleranze e alto tagliare la precisione—critical for structural parts and assemblies that require a perfect fit.
Le nostre capacità di tolleranza vs. Medie del settore
| Metrica | La nostra capacità | Media del settore | Vantaggio |
| Tolleranza dimensionale | ± 0,5 mm/m (±0.02” per foot) | ±1.0mm/m (±0.04” per foot) | 2x tighter tolerance for large workpieces (PER ESEMPIO., 10m steel beams have ±5mm vs. ±10mm industry average) |
| Cutting Accuracy | ±0.3mm for parts ≤5m; ±0.5mm for parts 5m–12m | ±0.5mm for parts ≤5m; ±1.0mm for parts 5m–12m | More precise cuts for both small and large components |
| Rugosità superficiale (Cut Edge) | Ra 3.2–6.3 μm (after grinding); Ra 12.5–25 μm (as-cut) | Ra 6.3–12.5 μm (after grinding); Ra 25–50 μm (as-cut) | Smoother edges that require less post-finishing, saving time and cost |
| Bevel Angle Tolerance | ±1° (for 0°–45° bevels) | ±2° (for 0°–45° bevels) | More accurate bevel angles for welded joints (critical for structural strength) |
Per mantenere queste tolleranze, we use CNC flame cutting machines with linear encoders (precisione: ±0.05mm/m) and thermal compensation software—this adjusts the tool path to account for metal expansion during cutting. We also calibrate machines daily and use high-precision nozzles (±0.1mm orifice tolerance) to ensure consistent oxygen flow.
Vantaggi: Why Choose CNC Flame Cutting Over Other Methods?
CNC Flame Cutting offers unique benefici that make it superior to other thermal cutting methods (PER ESEMPIO., plasma, laser) for thick ferrous metals. Its combination of cost-effectiveness, Alta efficienza, E versatilità makes it the top choice for large-scale metal fabrication.
Key Advantages of CNC Flame Cutting
| Vantaggio | Descrizione | Impact on Your Project |
| Cost-Effective for Thick Metals | Low operating cost (fuel gas + oxygen is cheaper than plasma or laser energy); ideal for steel ≥10mm thick | Saves 30–50% on cutting costs vs. laser cutting for 100mm steel plates |
| High-Speed Cutting for Large Parts | Cuts thick steel (50mm–300mm) faster than plasma cutting (PER ESEMPIO., 5m cut on 200mm steel takes 15 mins vs. 25 mins for plasma) | Reduces production time for large projects (PER ESEMPIO., ship hull fabrication) by 20–30% |
| Versatility for Large Workpieces | Handles parts up to 12m × 3m × 300mm—larger than most plasma/laser machines (max 6m × 2m) | Eliminates the need to split large parts (PER ESEMPIO., raggi di ponte) into smaller sections, saving assembly time |
| Consistency Across Batches | CNC programming ensures every part has identical cuts—critical for repetitive components (PER ESEMPIO., parentesi di costruzione) | Lowers scrap rate to <2% (contro. 5–8% for manual flame cutting) |
| Easy Bevel Cutting | Integrates rotary axes to cut bevels (0°–45°) in one pass—no need for secondary operations (PER ESEMPIO., macinazione) | Saves 1–2 hours per part on beveling, reducing lead times for welded components |
Per esempio, a shipyard switched from manual flame cutting to our CNC Flame Cutting service for hull plates (20mm–50mm thick). Their cutting time per plate dropped from 4 ore a 1.5 ore, and scrap rate fell from 7% to 1.5%—saving $120,000 monthly in labor and material costs.
Industria delle applicazioni: Where CNC Flame Cutting Is Used
CNC Flame Cutting’s ability to handle thick ferrous metals and large workpieces makes it indispensable across industries that rely on heavy metal fabrication. It is the go-to method for structural parts, componenti macchinari, and large-scale assemblies.
Industry Applications of CNC Flame Cutting
| Industria | Common Cut Parts | Why CNC Flame Cutting Is Ideal |
| Costruzione | Steel beams, colonne, parentesi, bridge structural parts, building frames | Handles large workpieces (up to 12m) and thick steel (10mm–300mm); cost-effective for high-volume projects |
| Costruzione navale | Piatti di scafo, deck components, paratie, alberi dell'elica (Alloggi) | Cuts thick steel (20mm–200mm) required for ship structural integrity; supports bevel cutting for welded joints |
| Macchinari pesanti | Cornici di macchinari, piatti di base, hydraulic cylinder barrels, excavator arm components | Provides precise cuts for tight-fitting assemblies; cost-effective for large, heavy parts |
| Fabbricazione | Custom metal enclosures, forni industriali, vasi a pressione, storage tanks | Accommodates custom cuts (irregular shapes, tacche) and large diameters (up to 1m holes for tanks) |
| Automobile | Componenti del telaio, cornici di camion, supporti del motore (for heavy-duty vehicles) | Handles thick steel (10mm–50mm) for vehicle structural strength; supports high-volume production |
| Aerospaziale | Attrezzatura di supporto a terra (PER ESEMPIO., aircraft jacks, engine stands), large tooling fixtures | Meets precision requirements for equipment that holds aircraft; cuts thick steel for load-bearing parts |
| Lavorazione dei metalli | Raw material sizing (cutting large steel plates into smaller blanks), custom prototypes | Cost-effective for sizing raw materials; flexible for one-off custom parts |
Nel settore delle costruzioni, our CNC Flame Cutting services have helped a leading construction firm cut 1,500 steel beams (12M lungo, 50mm di spessore) for a highway bridge—delivering all parts 2 weeks ahead of schedule and within budget, thanks to our high-speed cutting and automated systems.
Tecniche di produzione: The Technology Behind Our CNC Flame Cutting
Our CNC Flame Cutting services rely on advanced tecniche di produzione and cutting-edge technology to maximize precision, efficienza, and safety—critical for handling thick metals and large workpieces. We combine proven thermal cutting practices with innovative tools to optimize every step of the process.
Core Manufacturing Techniques for CNC Flame Cutting
| Tecnica | Come funziona | Beneficio |
| Thermal Compensation Software | Our CNC systems use built-in software that calculates metal expansion (based on material type, spessore, and preheat temperature) and adjusts the tool path in tempo reale. Per esempio, it expands the programmed cut by 0.2mm/m for 100mm thick steel to account for shrinkage as the metal cools. | Eliminates dimensional errors from thermal expansion/shrinkage; migliora tagliare la precisione del 30% |
| Dual-Torch Cutting | We use machines with two synchronized cutting torches that work in parallel—ideal for high-volume production of identical parts (PER ESEMPIO., parentesi di costruzione). The torches follow mirrored Percorsi degli utensili, cutting two parts at once. | Doubles production output; reduces labor costs by 50% for batch runs |
| Automated Loading/Unloading Systems | Robotic arms or gantry cranes load raw steel plates (up to 300kg) onto the cutting table and unload finished parts—24/7 operation with minimal human intervention. The system integrates with our CAD software to prioritize parts based on urgency. | Increases production capacity by 40%; reduces downtime between cuts (da 15 mins to 2 Min) |
| High-Precision Nozzle Technology | We use diamond-orifice nozzles (instead of standard brass) that maintain consistent oxygen flow (±1% variation) anche dopo 500+ tagli. The nozzles are designed with optimized preheat flame patterns to reduce preheating time by 20%. | Extends nozzle life (da 100 cuts to 500 tagli); reduces preheating time for thick steel (100mm+ takes 2 mins vs. 2.5 Min) |
| Integrated Dust & Fume Extraction | Our cutting tables are equipped with under-table suction systems that capture 95% of cutting fumes and dust. The system filters harmful gases (PER ESEMPIO., iron oxide fumes) to meet OSHA air quality standards. | Improves workplace safety; eliminates the need for post-cutting cleaning of the cutting table |
| Integrazione di lavorazione CNC | Our flame cutting machines are linked to CAD/CAM software (AutoCAD, Solidworks) that imports 2D/3D designs and generates optimized Percorsi degli utensili automatically. The software also simulates the cut to identify potential issues (PER ESEMPIO., collision between torch and workpiece) before production. | Reduces programming time by 60%; minimizes errors from manual programming |
We also invest in innovazione—our latest machines feature AI-powered cutting parameter optimization: the system learns from past projects (PER ESEMPIO., how 200mm mild steel reacts to different oxygen pressures) and adjusts settings to improve cut quality and speed for future jobs.
Casi studio: Success Stories From Our Clients
Our CNC Flame Cutting services have helped clients across industries solve complex fabrication challenges, ridurre i costi, and meet tight deadlines. Below are two detailed real-world examples of our work.
Caso di studio 1: Large-Scale Bridge Construction for a State DOT
Cliente: A state Department of Transportation (DOT) building a 2km highway bridge requiring 2,500 structural steel beams (12M lungo, 80mm thick mild steel A36).
Sfida: The client’s previous supplier used manual flame cutting, che ha impiegato 4 hours per beam and had a 7% Tasso di rottami (due to uneven cuts and dimensional errors). They needed all beams delivered in 8 weeks to avoid project delays, but manual cutting would take 12 weeks—putting the entire bridge timeline at risk. Inoltre, the beams required 45° bevel cuts for welded joints, which the supplier could only do via secondary grinding (Aggiunta 1 hour per beam).
Soluzione: We deployed 4 dual-torch CNC flame cutting machines with automated loading/unloading systems. Abbiamo ottimizzato il tool path to cut two beams at once (via dual torches) and integrated bevel cutting into the main process (no secondary grinding needed). Our thermal compensation software adjusted for steel expansion, ensuring each beam met the ±0.5mm/m dimensional tolerance. We also prioritized beam production based on the construction schedule (delivering critical support beams first).
Risultati:
- Tempo di produzione: Cut each beam in 1 ora (contro. 4 hours manual), completing all 2,500 beams in 6 weeks—2 weeks ahead of schedule.
- Tasso di rottami: Dropped to 1.2% (da 7%), risparmio 155 raggi (≈$77,500 in material costs).
- Labor Savings: Eliminated 20 secondary grinding positions, reducing labor costs by $120,000.
Client Feedback: “The CNC Flame Cutting service delivered the beams ahead of schedule and with perfect dimensional accuracy—critical for our bridge’s structural integrity. The integrated bevel cutting saved us weeks of extra work, and the cost savings helped us stay within budget.”
Caso di studio 2: Custom Ship Hull Plates for a Shipyard
Cliente: A shipyard building 5 navi da carico, each requiring 300 custom-shaped hull plates (20mm–50mm thick mild steel; irregular shapes with multiple notches and 30° bevels).
Sfida: The shipyard’s manual cutting process required 2 hours per plate and struggled to replicate the custom shapes consistently—leading to misfits during hull assembly (15% of plates had to be re-cut). They needed to reduce assembly time (each ship took 12 weeks to build) and ensure all plates fit seamlessly to avoid water leakage risks.
Soluzione: We used 5-axis CNC flame cutting machines (with rotary axes for bevel cuts) and imported the shipyard’s 3D hull CAD models directly into our CAM software. The software generated precise Percorsi degli utensili for each custom plate, and our high-precision nozzles ensured consistent cut quality. We also added in-process laser inspections (after each cut) to verify shape accuracy before unloading. For high-volume plates (PER ESEMPIO., standard notched sections), we used multi-plate stacking (3 plates at once) to speed up production.
Risultati:
- Tempo di produzione: Cut each plate in 30 minuti (contro. 2 hours manual), reducing hull plate production from 6 weeks per ship to 2 weeks per ship.
- Accuratezza: 99.5% of plates fit perfectly during assembly (contro. 85% manuale), eliminating re-cuts and reducing ship building time by 4 weeks per vessel.
- Risparmio dei costi: Saved the shipyard 250,000PershiPInrewOkanDlaborcosTS—ToTUNlSUNvInGsoF1.25 million across 5 ships.
Client Feedback: “The CNC Flame Cutting service’s ability to replicate custom hull shapes with such precision was game-changing. Our assembly teams now spend less time adjusting plates and more time building ships—we’ve increased our annual ship output from 3 A 5 vessels.”
Perché scegliere noi: Your Trusted CNC Flame Cutting Partner
With dozens of CNC Flame Cutting providers in the market, Cosa ci distingue? We combine technical excellence, customer-centric service, and a track record of delivering results—making us the go-to partner for large-scale, high-precision metal fabrication.
Superiore 5 Reasons to Choose Our CNC Flame Cutting Services
- Competenza senza pari & Esperienza: Il nostro team ha 25+ years of specialized esperienza in thermal cutting, con profonda conoscenza di flame cutting techniques for thick ferrous metals (10mm–300mm). Our engineers are certified in AWS (American Welding Society) standards and have worked on iconic projects (ponti autostradali, navi da carico, Forni industriali). We don’t just cut metal—we provide design feedback to optimize parts for CNC Flame Cutting (PER ESEMPIO., suggesting notch sizes that reduce cut time).
- Tecnologia all'avanguardia & Innovazione: We invest in the latest CNC flame cutting machines (80% of our fleet is less than 5 anni) and proprietary tecniche di produzione (PER ESEMPIO., thermal compensation software, AI parameter optimization). This technology ensures we deliver the tightest tolleranze and fastest lead times in the industry—even for large workpieces.
- Flessibile & Customizable Solutions: We handle projects of all sizes—from 1 custom prototype to 10,000 Parti ad alto volume. Nostro custom flame cutting capabilities let us tackle irregular shapes, beveled edges, and complex contours that other providers can’t. We also offer complementary services (macinazione, pittura, Trattamento termico) to deliver “turnkey” parts—no need to coordinate with multiple vendors.
- Controllo di qualità rigoroso & Affidabilità: We follow a 7-step quality assurance process—from raw material inspection (only certified steel from ISO 9001 Fornitori) to in-process laser checks and final dimensional verification. Nostro affidabilità rate is 99.5%—we meet 99.5% di scadenze di consegna, even for rush orders. We back every project with a “Fit Guarantee”: if a part doesn’t fit your assembly, we re-cut it for free.
Servizio incentrato sul cliente: Every client is assigned a dedicated project manager who acts as your single point of contact—providing daily production updates, addressing questions, and resolving issues within 24 ore. Offriamo 24/7 emergency service (for urgent projects like storm-damaged bridge repairs) and provide detailed documentation (Certificati materiali, cut reports) for every order—critical for industries like aerospace and construction.