Lifting chains and hooks

Core Product Range

Alloy Steel Lifting Chains

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

• Типи: 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 & Збори

• Features: 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 & Збори

• 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 (Напр., 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, chain, and D-shackle types (though often categorized separately, frequently paired with chains and hooks).

Technical Parameters Summary Table

Component	Key Parameter	Типовий діапазон / Специфікація	Standard Reference
Chain (G80)	Діаметр (d)	6mm – 26mm (Custom available)	ISO 4778, У 818-4
	Wll	0.25t – 25t+ (Depends on d)
	Min. Break Load (MBL)	4 x WLL
	Навантаження на доказ	2 x WLL
	Матеріал	Лепка сталь (Напр., 20Mn2, 23MnCrMo5-2)
Chain (G100)	Діаметр (d)	6mm – 26mm (Custom available)	ISO 4778, У 818-4
	Wll	Higher than G80 for same d (Напр., 10mm ~4.0t)
	Min. Break Load (MBL)	5 x WLL
	Навантаження на доказ	2 x WLL
	Матеріал	Higher Grade Alloy Steel
Hooks (Gr 8)	WLL Range	0.25t – 50t+	ISO 7592, У 1677-1
	Min. Break Load (MBL)	5 x WLL
	Навантаження на доказ	2 x WLL
	Min. Yield Strength	640 N/mm²
	Відкриття горла (S)	Controlled per WLL & Type
	Матеріал	Підроблена сталь із сплаву (Напр., 34Crmo4, 30CrNiMo8)
All	Traceability Marking	Wll, Сорт, Manufacturer ID, Batch/Serial	All Standards
	Захист від корозії (Opt.)	Hot-Dip Galvanizing (HDG) to ISO 1461

Core Product Range & Технічні характеристики

Alloy Steel Lifting Chains (G80 / Сорт 8 & G100 / Сорт 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).

• Обмеження робочого навантаження (Wll): Directly proportional to chain diameter and grade. Example ranges:

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

• Proof Test Load: Typically 2x WLL (Per ISO 4778 / У 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 links).

• 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 & Збори

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

• Обмеження робочого навантаження (Wll): Ranges from 0.25 tonnes to 50+ tonnes, depending on hook type, size, and design.

• Proof Test Load: Typically 2x WLL.

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

• Hook Throat Opening (S): Precisely controlled according to WLL and standard dimensions (Напр., У 1677-1).

• Shank Diameter/Width: Sized according to WLL and connection type (Напр., 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.

• Матеріал: Сталь з високої різниці (Напр., 34Crmo4, 30CrNiMo8), forged and heat-treated.

• Surface: Shot blasted, optionally galvanized or painted.

Основні особливості & Benefits of Weihua Lifting Chains and Hooks

• Безкомпромісна сила & Міцність: Forged or fabricated from high-grade alloy steel, rigorously heat-treated to achieve specified tensile strengths (G80/G100). Resistant to deformation, abrasion, і втома.

• Посилена безпека: Designed and manufactured in strict compliance with international safety standards (ISO 4778, ISO 7592, ASME B30.9, У 818-4, etc.). 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.

• Rigorous Quality Control: Every batch undergoes stringent testing, включаючи:

  • Тестування навантаження на підтвердження
  • Break Load Testing (destructive on samples)
  • Dimensional Checks
  • Візуальний огляд
  • Неруйнівне тестування (NDT) like Magnetic Particle Inspection (MPI) as required.

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

• Універсальність: Suitable for a vast array of applications across industries, from general manufacturing and warehousing to construction, mining, shipbuilding, and heavy machinery.

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

• Корозійна стійкість: 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 (Crane Hook And Block)
• Chain Hoists (Посібник & Electric)
• Lever Hoists (Come-alongs)
• Chain Slings (Assembly Kits)
• Rigging Applications
• Material Handling Equipment Integration
• Construction Sites
• Mining Operations
• Manufacturing Assembly Lines
• Shipyards & Docks

Сертифікати & Compliance

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 (Hooks)
• У 818-4 (Short link chain for lifting – Grade 8)
• У 1677-1 (Components for slings – Safety – Part 1: Forged steel components, Сорт 8)
• CE Marking (where applicable)
• 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.

• Proven Reliability: Trusted by industries worldwide for critical lifting operations.

• Safety First: Engineered and tested to the highest safety standards.

• Забезпечення якості: Robust manufacturing and quality control processes guarantee performance.

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

• Технічна підтримка: Expert guidance available for selection and application.

Weihua’s lifting chains and hooks represent the pinnacle of strength, надійність, 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.