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Core Product Range

Alloy Steel Lifting Chains

• Grades: Wyprodukowano zgodnie z G80 (Stopień 8) and G100 (Stopień 10) alloy steel standards, providing superior strength-to-weight ratios and exceptional durability.

• Typy: Available in various configurations including:

  • Single Leg Chains
  • Double Leg (2-Leg) Chains
  • Triple Leg (3-Leg) Chains
  • Quad Leg (4-Leg) Chains
  • Endless Loops
  • Custom Lengths & Zespoły

• Cechy: Precision welded links, uniform heat treatment ensuring consistent strength, smooth surface finish to minimize wear on sheaves and blocks, clear grade markings for traceability.

Lifting Hooks & Zespoły

• Hook Types: Wide selection including:

  • Clevis Hooks (Shackle Hooks): For direct sling or shackle connection.
  • Eye Hooks: For connection via a pin or shackle.
  • Self-Locking Hooks: Featuring robust safety latches to prevent accidental disengagement.
  • Non-Locking Hooks: For controlled environments.
  • Foundry Hooks: Heat-resistant hooks for demanding environments.
  • Specialty Hooks: Designed for specific applications (NP., grab hooks, sorting hooks).

• Master Links & Couplings: Essential components for connecting multiple legs of chain slings or attaching hooks to machinery.

• Shackles: Available in anchor, łańcuch, and D-shackle types (though often categorized separately, frequently paired with chains and hooks).

Technical Parameters Summary Table

Core Product Range & Specyfikacje techniczne

Alloy Steel Lifting Chains (G80 / Stopień 8 & G100 / Stopień 10)

• Chain Grades: G80 (Minimum Break Load = 800 N/mm²), G100 (Minimum Break Load = 1000 N/mm²)

• Chain Diameters (D): Typically ranging from 6mm (1/4″) to 26mm (1″) (Custom diameters available).

• Limit obciążenia roboczego (Wll): Directly proportional to chain diameter and grade. Example ranges:

  • 6mm G80 Chain: Około. Wll 1.0 tonne
  • 10mm G80 Chain: Około. Wll 3.2 tonnes
  • 13mm G80 Chain: Około. Wll 5.3 tonnes
  • 16mm G80 Chain: Około. Wll 8.0 tonnes
  • 10mm G100 Chain: Około. Wll 4.0 tonnes
  • (WLLs are rigorously tested and marked on each chain; always refer to markings)

• Próbne obciążenie próbne: Typically 2x WLL (Per ISO 4778 / W 818-4).

• Break Test Load: Minimum 4x WLL for G80, 5x WLL for G100 (Destructive testing on samples).

• Elongation at Break: ≤ 15% (Measured over 3 spinki do mankietów).

• Tolerance: Link dimensions manufactured to tight tolerances as per ISO 4778.

• Surface: Smooth finish, optionally galvanized (Min. average coating weight: 610 g/m² for Grade A) or painted for corrosion protection.

Lifting Hooks & Zespoły

• Hook Grades: Manufactured to Grade 4, 5, 6, 8 (Equivalent to ISO 7592 / W 1677-1). Stopień 8 (Najczęściej, Min. Yield Strength = 640 N/mm²) is standard for heavy-duty use.

• Limit obciążenia roboczego (Wll): Ranges from 0.25 tonnes to 50+ tonnes, depending on hook type, rozmiar, and design.

• Próbne obciążenie próbne: Typically 2x WLL.

• Break Test Load: Minimum 3x WLL for Grade 4, 4x WLL for Grade 5, 5x WLL for Grade 6/8.

• Haczykowe otwarcie gardła (S): Precisely controlled according to WLL and standard dimensions (NP., W 1677-1).

• Shank Diameter/Width: Sized according to WLL and connection type (NP., eye diameter, clevis pin hole).

• Latch Types: Forged safety latches on self-locking hooks, designed to withstand impact and prevent accidental release. Latch engagement tested.

• Tworzywo: Stal stopowy na wysokim rozciąganie (NP., 34CRMO4, 30CrNiMo8), forged and heat-treated.

• Surface: Shot blasted, optionally galvanized or painted.

Kluczowe funkcje & Benefits of Weihua Lifting Chains and Hooks

• Bezkompromisowa siła & Trwałość: Forged or fabricated from high-grade alloy steel, rigorously heat-treated to achieve specified tensile strengths (G80/G100). Resistant to deformation, abrazja, i zmęczenie.

• Zwiększone bezpieczeństwo: Designed and manufactured in strict compliance with international safety standards (ISO 4778, ISO 7592, ASME B30.9, W 818-4, itp.). Critical for protecting personnel and loads.

• Precision Manufacturing: State-of-the-art production processes ensure consistent link dimensions, smooth surfaces, and reliable weld integrity. This minimizes internal stress points and wear.

• Rygorystyczna kontrola jakości: Every batch undergoes stringent testing, w tym:

  • Testowanie obciążenia dowodowego
  • Break Load Testing (destructive on samples)
  • Dimensional Checks
  • Kontrola wizualna
  • Badania nieniszczące (Badania NDT) jak inspekcja cząstek magnetycznych (MPI) as required.

• Identyfikowalność: Each chain and hook is clearly marked with its Working Load Limit (Wll), stopień (NP., G80), manufacturer ID (Weihha), and often a unique serial/batch number for full traceability.

• Wszechstronność: Suitable for a vast array of applications across industries, from general manufacturing and warehousing to construction, górnictwo, okrętownictwo, and heavy machinery.

• Dostosowywanie: Weihua can provide custom chain lengths, specific hook configurations, and unique assemblies to meet specialized lifting requirements.

• Odporność na korozję: Standard finish protects against general environments. Optional galvanization or specialized coatings available for harsh/corrosive conditions.

Lifting Chains And Hooks Applications

Weihua lifting chains and hooks are integral components in:

• Overhead Crane Systems (Hak i blok dźwigu)
• Chain Hoists (Podręcznik & Elektryczny)
• Lever Hoists (Come-alongs)
• Chain Slings (Assembly Kits)
• Rigging Applications
• Material Handling Equipment Integration
• Place budowy
• Operacje wydobywcze
• Manufacturing Assembly Lines
• Stocznie & Docks

Certyfikaty & Zgodność

Weihua lifting chains and hooks are manufactured to meet or exceed:

• ISO 4778 (Specification for short link chain for lifting purposes)
• ISO 7592 (Forged steel lifting hooks – Grade 4, 5, 6, 8)
• ASME B30.9 (Slings) / B30.10 (Haczyki)
• W 818-4 (Short link chain for lifting – Grade 8)
• W 1677-1 (Components for slings – Safety – Part 1: Forged steel components, Stopień 8)
• CE Marking (w stosownych przypadkach)
• Other national and regional standards upon request.

Why Choose Weihua Lifting Chains and Hooks?

• Global Reputation: Backed by Weihua’s decades of experience and leadership in lifting equipment.

• Sprawdzona niezawodność: Trusted by industries worldwide for critical lifting operations.

• Bezpieczeństwo przede wszystkim: Engineered and tested to the highest safety standards.

• Zapewnienie jakości: Robust manufacturing and quality control processes guarantee performance.

• Comprehensive Range: One-stop solution for diverse chain and hook requirements.

• Wsparcie techniczne: Expert guidance available for selection and application.

Weihua’s lifting chains and hooks represent the pinnacle of strength, niezawodność, and safety in load connection technology. Whether you need standard components or custom-engineered solutions, Weihua provides the dependable link you can trust for efficient and secure lifting operations. Invest in Weihua quality for peace of mind and optimal performance.