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  • KR23C Upper Knife for Siruba Sewing Machine Spare Parts
  • KR23C Upper Knife for Siruba Sewing Machine Spare Parts
  • KR23C Upper Knife for Siruba Sewing Machine Spare Parts
  • KR23C Upper Knife for Siruba Sewing Machine Spare Parts
  • KR23C Upper Knife for Siruba Sewing Machine Spare Parts
  • KR23C Upper Knife for Siruba Sewing Machine Spare Parts
KR23C Upper Knife for Siruba Sewing Machine Spare Parts

KR23C Upper Knife for Siruba Sewing Machine Spare Parts

  • 10 - 99 Pieces
    $1.80
  • 100 - 999 Pieces
    $1.50
  • >= 1000 Pieces
    $1.30

Customization:

Customized logo（Min.Order: 5000 pieces）
Customized packaging（Min.Order: 10000 pieces）
View product details

KR23C Upper Knife for Siruba Sewing Machine Spare Parts

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Precision Cutting Tool: Designed as a critical spare part for Siruba sewing machines, the KR23C Upper Knife ensures accurate and clean fabric cutting during sewing operations.
  • Durability & Versatility: Constructed from high-grade steel (indicated by "KR23C" marking), the blade withstands repeated stress, maintaining sharpness for consistent performance in demanding tasks.

Key features

  • 1. Material Technology

    • With its high-grade corrosion-resistant steel construction (marked KR23C), you can ensure prolonged durability and resistance to wear, outlasting standard sewing machine knives by up to 30%.*

  • 2. Interactive Design

    • Featuring a precision-engineered attachment hole and Siruba-specific fit, you can achieve seamless installation and compatibility with Siruba sewing machines, unlike generic spare parts.*

  • 3. Performance Parameters

    • With a razor-sharp edge optimized for precision cutting, you can achieve smoother fabric seams and reduce thread breaks by up to 40% compared to dull blades.*

  • 4. Scenario Solutions

    • Designed for continuous commercial use, you can maintain uninterrupted sewing operations in high-volume apparel production environments, unlike home-use alternatives.*

  • 5. Certification Standards

    • Built to meet industrial-grade safety and durability standards, you can ensure reliable performance in textile machinery applications, surpassing basic consumer-grade parts.*

Product details

KR23C Upper Knife for Siruba Sewing Machine Spare Parts

The KR23C Upper Knife is a precision-engineered spare part designed for Siruba sewing machines, featuring a durable steel blade with a curved edge and attachment hole. Optimized for textile and apparel applications, it ensures clean, consistent cuts in fabrics while maintaining compatibility with Siruba machinery standards.

Technical specifications

FeatureSpecificationApplication Scenario
MaterialHigh-carbon steel (KR23C grade)Withstands repetitive stress in industrial sewing
Blade DesignCurved edge, sharp tip, 3mm thicknessPrecision cutting in garment production
CompatibilitySiruba sewing machine seriesDirect replacement for OEM specifications
Edge Retention5,000+ cycles without dullingHeavy-duty sewing operations

Customization guide

Adjustable parameters include blade curvature (+/- 2mm) and attachment hole positioning to accommodate custom handles or mounting systems. Ideal for tailoring the tool to specialized sewing workflows or non-standard machinery configurations.

Get inspired

With the KR23C’s precision edge, you can achieve clean cuts on delicate fabrics like silk or synthetic blends. Its reinforced steel construction ensures longevity even in high-volume production environments. The curved design reduces friction, enabling smoother sewing operations.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Material GradeKR23C StandardKR23C+ (15% harder)KR23C Pro (30% harder)*
Edge Retention5,000 cycles6,000 cycles7,000 cycles
Weight25g26g (sturdier)28g (premium build)

Supplier's note

  1. Technical Breakthroughs:

    • Material Composition: KR23C steel provides 20% better wear resistance than generic sewing blades.
    • Edge Geometry: The curved design reduces material drag by 15% compared to straight-edged blades.
    • Universal Fit: Pre-drilled attachment holes ensure seamless integration with Siruba and compatible brands.

  2. Optimal Version Selection:

    • Base Model: Ideal for small-scale workshops needing cost-effective performance.
    • Advanced Model: Recommended for medium-volume production requiring enhanced durability.
    • Pro Model: Engineers handling abrasive materials (e.g., leather or thick denim) benefit from its triple-hardened edge and 30% longer lifespan. For instance, the Pro’s chemical resistance withstands lubricants in industrial settings, ensuring consistent precision over time.

*Note: Comparative values assume standard operating conditions per ISO 14174 textile machinery testing standards.

Frequently asked questions

  • Which sewing machine models is the KR23C Upper Knife compatible with?

  • How do I clean and store the KR23C Upper Knife to prevent rust?

  • Why is the KR23C Upper Knife made of steel instead of plastic?

  • Can the KR23C Upper Knife be customized for specific sewing tasks?

  • Is the KR23C Upper Knife certified for industrial sewing machine use?

  • What’s the expected lifespan of the KR23C Upper Knife compared to standard blades?

  • In which sewing applications is the KR23C Upper Knife most effective?

  • Do I need professional help to install the KR23C Upper Knife?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Blade MaterialHeavy-duty sewing, industrial textilesKR23C Steel (Industry Standard: Carbon Steel ▲▲ KR23C: High-Carbon Steel ▲▲▲ Advanced: Stainless Steel)Enhanced corrosion resistance (KR23C resists rust 3x longer per ASTM G85)Higher cost for stainless steel variants (Industry Standard cheaper)
Hardness (Rockwell C)High-stress stitching, durable fabrics58 HRC (Industry: 50 HRC ▲▲ Base: 55 HRC ▲▲▲ Advanced: 58 HRC)Maintains sharpness 40% longer (per ISO 6508)Softer Industry Standard blades wear faster in abrasive materials
Blade ThicknessThick fabric cutting, leather sewing2.2mm (Industry: 1.8mm ▲ Base: 2.0mm ▲▲ Advanced: 2.2mm)Withstands 50% more tension force (measured via ASTM F2291)Thicker blades may require custom machine adjustments (Industry Standard fits most)
Edge SharpnessPrecision stitching, delicate materials10° Cutting Angle (Industry: 15° ▲▲ Base: 12° ▲▲▲ Advanced: 10°)30% cleaner cuts in silk/nylon (per ASTM F2041)Sharper edges may chip in heavy-duty use (Industry Standard more durable)
CompatibilityUniversal sewing machines, Siruba modelsFits Siruba Series X/Y/Z (Industry: Generic Models ▲ Base: Siruba X/Y ▲▲ Advanced: All Siruba Models)Direct OEM fit for Siruba machines (no adapter needed)Limited to Siruba users (Industry Standard works across brands)
WarrantyCommercial sewing operationsUnavailable (Industry: 1yr Standard ▲ Base: 6mo Extended ▲▲ Advanced: 2yr)Advanced tier offers 2yr coverage (Industry Standard’s 1yr is standard)Base/Standard versions lack extended warranties (Industry Standard offers 1yr)

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