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    • Our Company
      • Development History
      • Product and services
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    How Double-Edge Razor Blades Are Made: Inside the XiRui Blade Factory

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    • How Double-Edge Razor Blades Are Made: Inside the XiRui Blade Factory
    How Double-Edge Razor Blades Are Made: Inside the XiRui Blade Factory
    2025-05-27 04:23:33

    How Double-Edge Razor Blades Are Made: Inside the XiRui Blade Factory

    74 blade production image

    74 blade production image

    Double Edge Shave Razor

    /catalog/double-edge-shave-razor-blade

    Double Edge Shave Razor

    Understanding the Double-Edge Razor Blade

    It’s no wonder that double-edge blades are so popular, and the debate about “which brand is the best” demonstrates their relevance.

    A double-edge razor blade offers two sharp edges and is typically crafted from high-quality stainless steel. Its individual wrapping ensures convenient storage. Blades in this category share a standard size, ensuring compatibility with most handles on the market.

    74 blade with box

    Standard Dimensions

    • Length: Approximately 43 mm (1.7 inches)
    • Width: Approximately 22 mm (0.87 inches)
    • Thickness: Varies by brand, but generally between 0.004 inches and 0.007 inches.

    Its applications are surprisingly diverse:

    • Barbershops and Beauty: The sharp double-edge blade with non-stick coating excels in close and smooth shaves, making it a favorite in these industries.
    • Bakeries: Bakers use them for the traditional French technique of scoring baguettes to aid in the rising process.
    shaving with double-edge blade

    The Manufacturing of a Double-Edge Razor Blade

    Let’s delve into the step-by-step process of how these thin and sharp blades are produced.

    1. Material: It Starts with Steel

    The blade’s resistance to moisture is crucial, leading to the use of a specialized anti-corrosion stainless steel alloy. This material arrives as a thin and malleable sheet with unsharpened edges, stretching hundreds of feet long.

    material for blade manufacturing

    SANDVIK stainless steel strip

    2. Pressing: Shaping the Blade

    A high-speed punching machine stamps out the basic shape of the blade at incredible speeds (800-1200 strokes/minute!). These initial blades, or “preforms,” still have dull edges.

    pressing process of double-edge blade manufacturing

    3. Thermal Process: Hardening and Tempering

    A three-step heat treatment is key:

    • Heating: Preforms are heated to over 2000 degrees Fahrenheit for about 30 seconds.
    • Cooling: Rapid cooling in cold water restructures the metal to harden it.
    • Tempering: Reheating for about 20 seconds reduces brittleness.
    thermal process of double-edge blade manufacturing

    4. Printing: Marking the Blade

    Now the hardened preforms are ready to display their brand name through a printing process.

    printing process of double-edge blade manufacturing

    The printing process

    image of blade printed with brand name

    5. Grinding and Polishing: Achieving Sharpness

    The blades enter a specialized machine with three grinding stations, meticulously shaping the contour and creating the characteristic sharp edges. A polishing station smooths out any remaining imperfections. Until now, the blades have been connected, but a knife neatly separates them at this stage.

    grinding process of double-edge blade manufacturing

    the cutting process of the double-edge blade

    cutting process of double-edge blade manufacturing

    6. Inspection: Ensuring Quality

    Strict quality control involves sampling blades for geometric accuracy and cutting edge perfection. Technicians assemble blade packages (up to 800 at a time!) and use fluorescent light to expose the smallest defects.

    inspection process of double-edge blade manufacturing

    7. Coating: Enhanced Performance

    The pristine blades enter a vacuum chamber for a chrome-based coating, increasing edge hardness and resistance. A non-stick coating follows, applied through spray nozzles to minimize friction during shaving and prevent skin irritation.

    coating process of double-edge blade manufacturing

    8. Sintering: Permanently Bonding the Coating

    The protective coating undergoes “sintering,” where it’s baked at approximately 660 degrees Fahrenheit for 20 minutes. This ensures it permanently bonds to the blade surface.

    sintering process of double-edge blade manufacturing

    9. Quality Control: Testing Blade Strength

    Technicians test a sample of blades to ensure they meet strength specifications. A machine measures the force needed to cut a thick wet paper to a specific depth.

    blade sharpness testing process

    10. Organic Oil Soaking: Corrosion Protection

    The blades are immersed in organic oil for about half an hour as additional protection against corrosion, a major factor in blade deterioration.

    putting the blade in organic oil

    11. Packaging: Ready for Use

    Automated equipment individually wraps each blade in wax paper for protection during storage. The blades are then placed in containers such as plastic bags, boxes, or cartons for final packaging.

    packaging process of double-edge blade manufacturing

    About Xirui Manufacturing and Our Factory

    Xirui Manufacturing, formerly known as Xirui Blade Manufacturing, established in 2005, brings nearly 18 years of experience in OEM, ODM, and OBM.

    • Our factory covers over 60,000 square meters and employs more than 300 skilled workers.
    • Our current monthly capacity stands at an impressive 200 million blades and 8 million eyebrow razors.
    • We hold certifications in ISO 9001:2015, BSCI, and recognition as a high-tech enterprise.

    Feel free to contact us for your blade manufacturing needs!

    Double Edge Shave Razor

    /catalog/double-edge-shave-razor-blade

    Double Edge Shave Razor

    We differentiate ourselves through the sharpness of our blades and the use of high-quality coatings. Our experienced R&D team and precise laboratory equipment ensure the highest professional standards. Our business motto,

    “Exceeding our customers’ expectations in service, quality, and value”,

    guides us throughout each collaboration.

    Tags: Double Edge Blade Shaving Blade DE Blade

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