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  • Union Special 56100 Series Industrial Sewing Machine Spare Parts 51217C Bag Closing Machine with Steel Material
Union Special 56100 Series Industrial Sewing Machine Spare Parts 51217C Bag Closing Machine with Steel Material
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Union Special 56100 Series Industrial Sewing Machine Spare Parts 51217C Bag Closing Machine with Steel Material

  • >= 1 Pieces
    $38.80
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Union Special 56100 Series Industrial Sewing Machine Spare Parts 51217C Bag Closing Machine with Steel Material

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Precision Stitching: The 51217C needle ensures accurate and consistent stitching in bag closing operations, designed to handle heavy-duty materials like leather or reinforced fabrics.
  • Compatibility: Specifically engineered as a spare part for UNION SPECIAL 56100 series sewing machines, maintaining seamless integration with existing machinery.

Key features

  • 1. Material Technology

    • With high-grade steel construction, ensure longevity and resistance to wear and tear compared to standard carbon steel parts*.

  • 2. Interactive Design

    • With precision-engineered fitment, ensure seamless compatibility with UNION SPECIAL 56100 series sewing machines*.

  • 3. Performance Parameters

    • With optimized needle geometry, maintain consistent stitching performance at high speeds*.

  • 4. Scenario Solutions

    • Designed for commercial sewing environments, support continuous operation without frequent replacements*.

  • 5. Certification Standards

    • Constructed to meet industrial durability standards, ensuring reliability in high-demand sewing operations*.

Product details

Union Special 56100 Series Industrial Sewing Machine Spare Parts 51217C Bag Closing Machine with Steel Material

The 51217C BAG CLOSING MACHINE SPARE PARTS for UNION SPECIAL 56100 SERIES is a precision-engineered stainless steel component designed to enhance durability and reliability in industrial sewing operations. Featuring a hexagonal head for secure torque control and seamless integration with UNION SPECIAL machinery, this spare part ensures optimal performance in high-speed bag production environments.

Technical specifications

FeatureSpecificationBenefit
MaterialStainless SteelCorrosion resistance and long-term strength
DesignHexagonal Head + Cylindrical RodEasy wrench access and precise alignment
CompatibilityUNION SPECIAL 56100 SeriesEnsures flawless fit and functionality
ApplicationIndustrial Bag Closing MachinesIdeal for high-volume, repetitive sewing

Customization guide

Adjustable parameters such as length, diameter, and surface finish can be tailored to meet specific machinery requirements or environmental conditions (e.g., enhanced corrosion resistance for humid factories).

Get inspired

With its corrosion-resistant stainless steel construction, this spare part maintains precision even in demanding environments. Perfect for manufacturers seeking to reduce downtime and ensure consistent stitching quality in automated bag production lines.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Material GradeStandard SteelStainless SteelPremium Stainless Steel
Corrosion ResistanceLow (Uncoated)Moderate (Passivation)High (Electropolished)
Precision Tolerance±0.5mm±0.3mm±0.1mm

Supplier's note

  1. Three Key Breakthroughs:

    • Material Upgrades: The Pro Model’s premium stainless steel outperforms industry standards, offering 30% higher corrosion resistance.
    • Precision Engineering: The Advanced Model’s tighter tolerances (±0.3mm) reduce misalignment by 20% compared to traditional parts.
    • Hexagonal Design: The universal wrench-friendly head eliminates slippage, ensuring consistent torque application.

  2. Version Selection Guide:

    • Base Model: Ideal for general-purpose sewing where cost efficiency is prioritized.
    • Advanced Model: Recommended for humid or chemical-exposed environments (e.g., leather processing).
    • Pro Model: Best for luxury brands requiring zero-defect stitching and extreme durability (e.g., high-end handbag manufacturing).

With the Pro Model’s triple-certified corrosion resistance and precision tolerances, users can achieve flawless stitching even in harsh conditions. Pair its premium material with the hexagonal head’s grip stability to minimize maintenance and downtime.

Frequently asked questions

  • Which spare parts are compatible with UNION SPECIAL 56100 SERIES bag closing machines?

  • How do I maintain the steel needle of the 51217C spare part?

  • Why choose steel over other materials for bag closing machine parts?

  • Can the 51217C spare parts be customized for unique applications?

  • Are UNION SPECIAL 56100 SERIES spare parts FDA-approved for food-grade materials?

  • What makes the 51217C suitable for high-volume apparel production?

  • Does the 51217C come with a warranty?

  • Can these spare parts be used with other sewing machine brands?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Needle ComponentsHigh-volume stitching, industrial sewing▲ Industry Standard: Carbon steel (ASTM A36)
▲ Base: High-carbon steel (ASTM A108)
▲ Advanced: Coated steel (ASTM A666 + PTFE)		Base: 20% stronger than standard (resists bending). Advanced: 50% longer lifespan (anti-friction coating).Advanced: 30% higher cost due to coating process.
Drive MechanismsHeavy-duty sewing, automated lines▲ Industry Standard: Cast iron gears (ISO 9001)
▲ Base: Precision-machined steel gears (ISO 1337)
▲ Advanced: Steel with self-lubricating additives		Base: 15% quieter operation (43 dBA). Advanced: 30% less wear over 1,000 hours.Advanced: Requires specialized lubricants.
Feed DogsThick fabric handling (leather, denim)▲ Industry Standard: Standard steel (ASTM A36)
▲ Base: Hardened steel (Rockwell C45)
▲ Advanced: Tungsten carbide-tipped (ISO 513)		Base: 25% better grip on abrasive materials. Advanced: 50% longer durability.Advanced: Fragile under improper torque.
Bobbin SystemsHigh-speed sewing, complex patterns▲ Industry Standard: Plastic bobbins (ISO 286-2)
▲ Base: Steel bobbins (ASTM A36)
▲ Advanced: Ceramic-coated steel (ASTM C643)		Base: 30% stiffer for heavy threads. Advanced: 40% smoother thread glide.Advanced: 50% heavier, may strain older machines.
Tension RegulatorsDelicate fabrics (silk, lace)▲ Industry Standard: Spring-based (ISO 780)
▲ Base: Stainless steel springs (ASTM A240)
▲ Advanced: Micro-adjustable ceramic (ISO 1441)		Base: Corrosion-resistant for humid environments. Advanced: ±0.1mm tension precision.Advanced: Requires calibration training.
Safety GuardsWorkshop environments with frequent use▲ Industry Standard: Basic metal guards (ISO 14120)
▲ Base: Reinforced steel (ASTM A537)
▲ Advanced: Transparent polycarbonate (ASTM D638)		Base: 20% stronger against impacts. Advanced: Full visibility during operation.Advanced: Susceptible to scratches.

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