SANG 350mm Laser Welding Diamond Saw Blade A Practical Guide to Cutting Reinforced Concrete & Asphalt (With Multiple Segment Options) 2026年03月13日 When job sites switch between reinforced concrete, aged asphalt, and mixed aggregates, one “universal” blade often becomes a compromise—either slow cutting, excessive segment wear, or overheating. That’s why SANG developed a 350mm diamond saw blade family built around laser welding and multiple segment designs, so contractors can match the blade to the material and cutting conditions—rather than forcing one profile to do everything. In this guide, we’ll break down how a laser welding saw blade works, how to choose segment types (W-type, turbo, normal, ordered layouts, and combination patterns), and how to optimize performance for real-world cutting. What Is a 350mm Diamond Saw Blade Used For? A 350mm diamond saw blade is commonly used on walk-behind saws and high-power handheld concrete saws for: Expansion joints and control joints in concrete slabs Road repair and patching (asphalt + concrete transitions) Trenching for utilities and drainage Cutting rebar-heavy concrete in demolition and retrofit projects If your main task is cutting steel-reinforced concrete, you’ll typically need a saw blade for reinforced concrete with strong weld integrity, stable diamond retention, and a segment structure that evacuates slurry/dust efficiently. Why Laser Welding Matters (and Why It’s Not Just Marketing) A laser welding saw blade bonds the diamond segment to the steel core using high-energy laser welding, producing: High joint strength under heavy load and heat Better resistance to segment loss during shock cutting (rebar hits, aggregate pockets) More stable performance for dry or semi-dry cutting (depending on machine and jobsite practice) For contractors, the practical benefit is confidence: when cutting reinforced concrete, the blade experiences frequent “impact events” (rebar, hard stones), and weld stability becomes a major safety and productivity factor. Segment Options for Different Jobsite Conditions SANG offers multiple segment styles so you can match the blade to the cut. Below are the common patterns referenced in your requirement and what they’re best at. 1) W-Shape Segments (W Shape) Best for: aggressive cutting, fast opening of the cut, mixed materials Why it works: the W geometry helps reduce contact area intermittently, improving bite and material discharge. Typical use cases Reinforced concrete where speed matters Concrete with hard aggregate Projects that need fast entry and reduced “blade wandering” 2) Turbo Segments Best for: faster cutting with improved cooling and debris evacuation Why it works: turbo-style edges create turbulence that helps remove dust/slurry and reduces heat concentration. Typical use cases Asphalt cutting where clogging can be an issue Concrete cuts requiring smoother progress than a purely aggressive segment Longer continuous cuts where temperature stability matters 3) Normal Segments Best for: stable, controlled cutting and balanced wear Why it works: consistent segment geometry gives predictable tracking and often smoother edges. Typical use cases General-purpose concrete cutting Sites prioritizing service life and stability over peak speed Operators who prefer steady feed rates and low vibration 4) Arix/turbo Arix Best for: consistent cutting feel and uniform wear Why it works: ARIX spacing can reduce periodic load spikes and help maintain a steady cutting rhythm—especially important on powerful saws. Typical use cases Repetitive cuts with the same depth and material Contractors wanting repeatable performance across crews and projects 5) Combination Segments (Turbo + Normal) Best for: mixed jobsite conditions where material changes frequently Why it works: blending segment behaviors aims to balance speed, cooling, and stability, reducing the need to swap blades when you move from concrete to asphalt or hit unexpected aggregate/rebar. Typical use cases Municipal maintenance (roads, curbs, sidewalks) Contractors who cut both asphalt and reinforced concrete in the same shift Field Tips to Improve Cutting Speed and Blade Life Even the best 350mm diamond saw blade can underperform if cutting practice isn’t optimized: Match RPM and feed rate to the material Too much pressure causes glazing and heat; too little can polish the diamonds and slow the cut. Use proper cooling strategy (wet when possible) Wet cutting typically improves segment life and cut speed, and reduces dust. Avoid forcing through rebar Let the blade maintain RPM—rebar impact is where many blades lose efficiency fastest. Dress the blade if it becomes glazed If cutting speed drops suddenly on abrasive materials, a quick dressing pass can expose fresh diamonds. Conclusion: One Diameter, Multiple Segment Solutions A 350mm blade size is a workhorse for jobsite cutting—but performance depends heavily on segment design and weld quality. With SANG’s laser welding saw blade construction and multiple segment options (W-type, turbo, normal, ordered, and combinations), you can select the right concrete saw blade for each operating condition—improving speed, stability, and overall cost per meter cut. If you share your typical material (compressive strength range, aggregate type), cutting method (wet/dry), and saw model, we can recommend the most suitable segment style and specification for your application. Contents What Is a 350mm Diamond Saw Blade Used For? Why Laser Welding Matters (and Why It’s Not Just Marketing) Segment Options for Different Jobsite Conditions 1) W-Shape Segments (W Shape) 2) Turbo Segments 3) Normal Segments 4) Arix/turbo Arix 5) Combination Segments (Turbo + Normal) Field Tips to Improve Cutting Speed and Blade Life Conclusion: One Diameter, Multiple Segment Solutions