Тешке куке за подизање

Weihua Group, a globally recognized leader in hoisting and lifting solutions, brings decades of specialized engineering expertise to every Heavy Duty Lifting Hook they manufacture. Choosing Weihua means investing in:

• 1. Engineered for Maximum Load & Safety: Every Weihua heavy duty lifting hook undergoes rigorous design analysis and testing, far exceeding international standards like ISO 9001, Фем, and ASME B30.10. They boast exceptional safety factors (typically 5:1 or higher), providing a critical buffer for unexpected stresses.
• 2. Ultra-High Load Capacities: Designed to handle the most challenging lifts, Weihua heavy duty lifting hooks are available in an extensive range of Working Load Limits (WLL), spanning from several tons to several hundred tons. Specific capacities are precisely matched to your application requirements.
• 3. Premium Forged Alloy Steel Construction: Forged under intense pressure from high-grade alloy steel, these hooks possess superior grain structure, maximizing strength, impact resistance, and fatigue life compared to inferior cast or cut hooks. This forging process is fundamental to their heavy-duty performance.
• 4. Advanced Safety Latches (Where Applicable): Many Weihua heavy duty lifting hooks feature robust, spring-loaded or positive locking safety latches. These latches are engineered for secure engagement, preventing slings or load attachments from accidentally dislodging, a vital feature for overhead lifting safety.
• 5. Optimized Hook Geometry: The precise throat opening and tip design ensure easy and secure engagement with shackles, chains, or slings. The smooth, radiused profile minimizes stress concentrations and wear on slings.
• 6. Enhanced Durability & Longevity: Weihua crane hook undergo specialized heat treatment processes (quenching and tempering) to achieve the perfect balance of hardness and toughness. High-quality finishes (often electro-galvanized or other corrosion-resistant coatings) protect against rust and abrasion in harsh environments, extending service life significantly.
• 7. Seamless Integration: Weihua heavy duty lifting hooks are designed to integrate flawlessly with Weihua’s own cranes, hoists, and winches, as well as other major brands of lifting equipment. Shank types (clevis, eye, ramshorn) and sizes are standardized for universal compatibility.

Weihua Heavy Duty Lifting Hooks Technical Parameter Table

Parameter Category	Specifications	Notes/Optional Configurations
Core Specifications
Working Load Limit (WLL)	1 ton ~ 500 тона	Customizable (up to 1000+ тона)
Сигурносни фактор	≥ 5:1	Complies with FEM/ASME (up to 6:1)
Радна температура	-40°C to +200°C	Custom: -196°C or +450°C
Structural Design
Материјал	High-tensile alloy forged steel (35CrMo, 42CrMo, 34Cr2Ni2Mo)	Meets GB/T 3077, DIN EN 10083
Manufacturing Process	Closed-die forging + CNC machining	Grain flow follows hook contour
Тип куке	– Single Hook (Clevis/Eye Shank) – Ramshorn (Double) Hook – Swivel Crane Hooks	Bearing type: Tapered/ball roller
Throat Diameter (D)	50mm ~ 1500mm	Customizable per load geometry
Сигурносне карактеристике
Safety Latch Type	– Spring Latch – Positive Locking Latch – Latchless	Locking force ≥ 10% WLL (mechanical)
Latch Material	Alloy steel + surface hardening (HRC 40-45)	Impact-resistant design
Површински третман
Standard Anti-Corrosion	Electro-galvanized (8-12μm)	Salt spray test > 96 hours
Enhanced Protection	– Hot-dip galvanized (70-100μm) – Xylan®/Dacromet coating	Marine/chemical environments
Certifications
Design Standards	ИСО 9001, АСМЕ Б30.10, Фем 9.511, DIN 15401, GB/T 10051
3rd-Party Certification	TÜV, DNV-GL, Lloyd’s Register, Це	Nuclear (ASME NQA-1), Mining (MSHA)
Testing Methods	– 100% МПИ – Ultrasonic Testing (Ут) – Proof Load Test (1.5×WLL)	MTC & test reports available
Mounting Interface
Shank Diameter	20mm ~ 300mm	Tolerance: H7/g6 (DIN 6885)
Pin Type	– Clevis Pin (DIN 688) – Eye Bore (DIN 15403)	Lock nuts/cotter pins standard
Customization Options
Special Features	– Load cell slots – RFID tag grooves – Latch sensor ports	IoT/automation ready
Extreme Environments	– Cryogenic (-196° Ц) – High-temp coating (+650° Ц) – Explosion-proof (ATEX/IECEx)	Deep cryogenic/heat treatment

Key Parameter Notes

• 1. WLL & Сигурносни фактор

  • Minimum breaking strength = WLL × Safety Factor (Нпр., 100t hook: 500t breaking load)

  • Dynamic loads require derating (suggested: WLL × 1.2–1.5)

• 2. Swivel Hook Additions

  - Rotation torque: ≤ 2% × WLL × D (D = throat diameter)  
  - Bearing life: 100,000 cycles (ИСО 281)

• 3. Corrosion Protection Comparison

Coating Type	Environment	Service Life (Industrial)
Electro-galvanized	Dry indoor	5–8 years
Hot-dip galvanized	Humid/coastal	15+ years
Xylan® coating	Chemical exposure (pH 3–11)	10 years

Ideal Applications for Weihua Heavy Duty Lifting Hooks

• 1. Overhead Crane Systems (EOT, Gantry, Jib)

• 2. Foundries and Steel Mills

• 3. Heavy Machinery Fabrication & Installation

• 4. Shipbuilding & Dry Dock Operations

• 5. Mining & Mineral Processing

• 6. Power Generation (Turbine, Transformer Lifts)

• 7. Bridge & Major Infrastructure Construction

• 8. Port Terminal Container Handling & Heavy Lift Operations

Why Choose Weihua Heavy Duty Lifting Hooks?

• Uncompromising Safety: Built to the highest global standards with massive safety margins.

• Proven Reliability: Forged construction and premium materials ensure consistent performance under the most strenuous conditions.

• Superior Durability: Advanced heat treatment and protective finishes maximize hook lifespan, reducing replacement costs and downtime.

• Global Engineering Excellence: Backed by Weihua Group’s extensive R&D, manufacturing prowess, and stringent quality control.

• Comprehensive Support: Worldwide sales and service network providing expert advice, spares, and maintenance support.

When your operations demand absolute certainty under immense loads, trust the engineered strength and unwavering reliability of Weihua heavy duty lifting hooks. They are not just hooks; they are a critical safety component engineered to perform flawlessly, lift after lift.

Contact Weihua or your authorized distributor today to discuss your specific heavy lifting requirements and discover the optimal heavy duty lifting hook solution for your most challenging applications. Visit the Weihua website for detailed catalogs and technical specifications.