weihha, 物質処理ソリューションの世界的に認められたリーダー, offers a comprehensive range of high-performance lifting chains and hooks designed to meet the most demanding industrial applications. Built to exacting international standards, our chains and hooks form the critical, dependable link between your load and your lifting equipment.
Grades: Manufactured to G80 (Grade 8) and G100 (Grade 10) alloy steel standards, providing superior strength-to-weight ratios and exceptional durability.
Types: Available in various configurations including:
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.
フックタイプ: Wide selection including:
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).
| Component | Key Parameter | Typical Range / 仕様 | Standard Reference |
| Chain (G80) | Diameter (d) | 6mm – 26mm (Custom available) | ISO 4778, で 818-4 |
| wll | 0.25t – 25t+ (Depends on d) | ||
| 分. Break Load (MBL) | 4 x WLL | ||
| Proof Load | 2 x WLL | ||
| 材料 | Alloy Steel (例えば。, 20Mn2, 23MnCrMo5-2) | ||
| Chain (G100) | Diameter (d) | 6mm – 26mm (Custom available) | ISO 4778, で 818-4 |
| wll | Higher than G80 for same d (例えば。, 10mm ~4.0t) | ||
| 分. Break Load (MBL) | 5 x WLL | ||
| Proof Load | 2 x WLL | ||
| 材料 | Higher Grade Alloy Steel | ||
| Hooks (Gr 8) | WLL Range | 0.25t – 50t+ | ISO 7592, で 1677-1 |
| 分. Break Load (MBL) | 5 x WLL | ||
| Proof Load | 2 x WLL | ||
| 分. Yield Strength | 640 N/mm² | ||
| Throat Opening (S) | Controlled per WLL & Type | ||
| 材料 | Forged Alloy Steel (例えば。, 34CRMO4, 30CrNiMo8) | ||
| All | Traceability Marking | wll, Grade, Manufacturer ID, Batch/Serial | All Standards |
| 腐食保護 (Opt.) | Hot-Dip Galvanizing (HDG) to ISO 1461 |
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).
作業負荷制限 (wll): Directly proportional to chain diameter and grade. Example ranges:
Proof Test Load: Typically 2x WLL (Per ISO 4778 / で 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 (分. average coating weight: 610 g/m² for Grade A) or painted for corrosion protection.
Hook Grades: Manufactured to Grade 4, 5, 6, 8 (Equivalent to ISO 7592 / で 1677-1). Grade 8 (最も一般的です, 分. Yield Strength = 640 N/mm²) is standard for heavy-duty use.
作業負荷制限 (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 (例えば。, で 1677-1).
Shank Diameter/Width: Sized according to WLL and connection type (例えば。, 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.
材料: High-tensile alloy steel (例えば。, 34CRMO4, 30CrNiMo8), forged and heat-treated.
Surface: Shot blasted, optionally galvanized or painted.
Uncompromising Strength & 耐久性: Forged or fabricated from high-grade alloy steel, rigorously heat-treated to achieve specified tensile strengths (G80/G100). Resistant to deformation, abrasion, と疲労.
安全性の強化: Designed and manufactured in strict compliance with international safety standards (ISO 4778, ISO 7592, ASME B30.9, で 818-4, 等). 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, 含む:
トレーサビリティ: Each chain and hook is clearly marked with its Working Load Limit (wll), grade (例えば。, G80), manufacturer ID (weihha), and often a unique serial/batch number for full traceability.
Versatility: Suitable for a vast array of applications across industries, from general manufacturing and warehousing to construction, mining, shipbuilding, and heavy machinery.
カスタマイズ: Weihua can provide custom chain lengths, specific hook configurations, and unique assemblies to meet specialized lifting requirements.
Corrosion Resistance: Standard finish protects against general environments. Optional galvanization or specialized coatings available for harsh/corrosive conditions.
Weihua lifting chains and hooks are integral components in:
Weihua lifting chains and hooks are manufactured to meet or exceed:
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.
品質保証: Robust manufacturing and quality control processes guarantee performance.
包括的な範囲: One-stop solution for diverse chain and hook requirements.
Technical Support: Expert guidance available for selection and application.
Weihua’s lifting chains and hooks represent the pinnacle of strength, reliability, 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.
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