Crane C-Hook

Overview of ZOKECRANE Crane C-Hooks

Manufactured by Henan Zoke Crane Co., Ltd., ZOKECRANE C-hooks are fabricated from premium high-tensile alloy steel plates (such as Q355B, Q355D, and Q690D) using advanced CNC plasma cutting and submerged arc welding. Engineered in strict compliance with ISO, CE, DIN, and ASME B30.20 below-the-hook lifting device standards, our product range includes counterweight-balanced C-hooks, motorized rotating C-hooks, and specialized padded C-hooks for delicate metals, catering to lifting capacities ranging from 2 tons to over 50 tons.

Key Technical Specifications & Parameters

Core Product Advantages & Engineering Features

• Automatic Counterweight Balancing: Precision-calculated internal or external counterweights ensure the carrying arm stays perfectly horizontal both when empty and when carrying a full-capacity coil, ensuring effortless insertion into coil centers.
• Coil Surface Scratch Protection: Equipped with thick polyurethane (PU) protective liners or brass plates along the lifting arm and backrest to prevent edge deformation, scratches, and damage to delicate coiled sheets.
• Monolithic High-Tensile Steel Structure: Fabricated using continuous full-penetration welding and heavy plate gussets, eliminating internal stress concentrations and delivering maximum fatigue resistance.
• Ergonomic & Compact Handling: Streamlined profile allows operators to maneuver coils safely in tight warehouse aisles and close-stacked coil storage yards without touching adjacent materials.

Industrial Applications of Crane C-Hooks

ZOKECRANE heavy-duty C-hook lifters are essential below-the-hook attachments utilized across diverse coil-handling industries globally:

1. Steel Rolling Mills & Processing Centers

Attached to heavy double girder overhead cranes for transferring hot-rolled, cold-rolled, and galvanized steel coils between rolling lines and storage bays.

2. Automotive & Stamping Fabrication Plants

Precision coil lifters fitted with soft protective padding for damage-free handling of high-grade aluminum and sheet metal coils supplying stamping presses.

3. Wire Rod & Cable Manufacturing Facilities

Specialized heavy-duty C-hooks engineered for picking, stacking, and loading heavy wire rod coils and copper wire bundles.

4. Port Logistics & Freight Terminals

Heavy-duty weatherproof C-hooks deployed on port portal cranes and gantry cranes for loading and discharging steel coils onto cargo vessels and trucks.

Frequently Asked Questions (Product FAQs)

How does a C-hook maintain a level horizontal balance when loaded and unloaded?

The C-hook relies on a precisely calculated counterweight built into its upper spine structure. When the hook is empty, the counterweight tilts the carrying arm slightly upward (about 2° to 3°) so it slides smoothly into the coil’s inner diameter. Once loaded, the coil’s center of gravity shifts directly under the main crane hook, bringing the arm to a level horizontal plane.

What protective options prevent C-hook damage to high-grade steel or aluminum coils?

To prevent edge crimping and surface scratches on premium steel or aluminum coils, ZOKECRANE fits C-hooks with high-density polyurethane (PU) pads, brass wear strips, or durable rubber linings along the horizontal arm contact surfaces and vertical backrest bumpers.

Can ZOKECRANE C-hooks be equipped with motorized rotation?

Yes. For complex warehouse layouts where coils need to be rotated 30°, 90°, or 360° for truck loading or furnace positioning, we supply motorized slewing drive heads integrated directly into the upper bale of the C-hook assembly.

How do you verify the structural safety of a ZOKECRANE C-hook before shipment?

Every C-hook undergoes 100% non-destructive testing (NDT) on critical load welds via Ultrasonic Testing (UT) and Magnetic Particle Testing (MT). Furthermore, each unit undergoes a 125% overload proof test on our digital test bench before issuing a certified load test certificate.

Export & Logistics FAQs for International Buyers

Which international markets does ZOKECRANE export C-hooks to?

ZOKECRANE below-the-hook lifting equipment and crane accessories are exported worldwide, supplying steel mills, service centers, and port terminals in Russia, Uzbekistan, the Philippines, Bangladesh, Australia, Qatar, Tanzania, Singapore, Saudi Arabia, Brazil, Nigeria, and many other global markets.

How are heavy C-hooks packaged and secured for ocean freight shipment?

All machined bail pins, protective pads, and painted steel surfaces receive anti-corrosion wax coatings and protective plastic wrapping. Complete C-hook assemblies are mounted and strapped onto heavy steel transport skids, vacuum-wrapped in moisture-proof plastic film, and loaded into 20ft/40ft standard or open-top shipping containers.

What quality control test reports and certifications accompany ZOKECRANE C-hook shipments?

Every shipment is accompanied by a complete quality control dossier, including ISO 9001 compliance, European CE safety certificates, EN 10204 3.1 Material Test Reports (MTR) for steel plates, weld NDT inspection sheets, proof load test certificates, and SGS third-party verification upon request.

What commercial shipping terms and manufacturing lead times do you offer?

We support standard international commercial terms including FOB, CIF, CFR, DDU, and DDP. Standard C-hook models (5T to 20T capacity) have fast manufacturing lead times of 15 to 20 business days; custom heavy-tonnage or motorized rotating C-hooks take 25 to 35 business days.

Does ZOKECRANE provide customization matching our specific crane hook dimensions?

Yes. Our structural engineering department custom-designs the upper suspension bale size, throat height, prong length, and nose radius to match your existing crane main hook size and exact coil inventory dimensions.