CAST IRON DRUMS
Cast iron drums—ideal crane drums for light-duty lifting, offering durability, low noise, and cost efficiency.
- Material: Gray Cast Iron HT200 (standard), Ductile Cast Iron QT400-15 (optional for higher toughness)
- Manufacturing: Centrifugal Casting — ensures dense, uniform structure & superior wear resistance
- Diameter:φ300 mm to φ800 mm (custom sizes available)
- Length: 1,000 mm to 4,000 mm
- Rope Groove: Precision-machined double-lead or helical grooves; surface finish Ra ≤ 6.3 μm
- Heat Treatment: Stress-relief annealing (standard); optional surface hardening for high-cycle applications
- Key Advantage: Excellent vibration damping & self-lubricating properties — minimizes wire rope wear and noise, ideal for light- to medium-duty cranes
✅ Note: Centrifugal casting eliminates porosity and segregation, significantly improving fatigue life vs. sand-cast alternatives.
Order Now
Cast iron drums in stock — HT200, centrifugally cast, ready to ship.
📩 Request a quote or contact us for custom sizes & lead time.
CAST IRON DRUMS FOR LIGHT-DUTY LIFTING
Key Advantages of Cast Iron Drums
- Excellent Wear Resistance & Vibration Damping
Gray cast iron contains flake graphite, providing natural self-lubrication. This reduces wire rope wear and ensures smoother, quieter crane operation. - Superior Castability & Cost Efficiency
Easily molded into complex shapes (e.g., precision rope grooves, flanges, stiffening ribs), making it ideal for medium-to-large drums in batch production. - High Rigidity & Compressive Strength
Maintains dimensional stability under rope tension and cyclic bending loads—ensuring consistent rope alignment and winding accuracy.
⚠️ Note: Cast iron has lower tensile strength and impact toughness than forged or welded steel. It is not recommended for high-speed, high-impact, or extreme low-temperature applications—where steel drums (welded or forged) are preferred.
All items undergo thorough inspection and testing at every stage of the workflow—and again after final production—to ensure only the highest-quality products reach the market.
Specifications of Cast Iron Drums
| NO. | Specification | Lifting capacity (t) | Pulley ratio | Screw pitch | Lifting height (m) | Weight (kg) |
|---|---|---|---|---|---|---|
| 1 | φ300×1000 | 3.2 | 2 | 14 | 12 | 264 |
| 2 | φ300×1500 | 3.2 | 2 | 14 | 18 | 342 |
| 3 | φ400×1000 | 5 | 2 | 16 | 16 | 334 |
| 4 | φ400×1500 | 10 | 3 | 16 | 16 | 454 |
| 5 | φ500×1500 | 16 | 3 | 20 | 16 | 753 |
| 6 | φ500×1500 | 20 | 4 | 20 | 12 | 753 |
| 7 | φ650×2000 | 32 | 4 | 24 | 16 | 1500 |
| 8 | φ800×2000 | 50 | 5 | 28 | 12 | 2534 |
| 9 | φ800×4000 | 75 | 5 | 32 | 20 | 3390 |
Our Crane Drums
❓ How do cast iron drums compare to steel drums?
Feature | Cast Iron Drums | Steel Drums |
|---|---|---|
Best for | Light- to medium-duty, low-speed | Heavy-duty, high-cycle, high-impact |
Noise/Vibration | Lower (graphite damping) | Higher (requires external pads) |
Cost | Lower (especially for complex shapes) | Higher (welding, machining, NDT) |
Weight | Heavier (benefits stability in light cranes) | Lighter (better for high-speed systems) |
Repairability | Limited (not weldable) | Repairable/weldable |
→ Choose cast iron for economy and quiet operation; choose steel for maximum strength and flexibility in demanding service.
CONTACT US NOW
Looking for reliable, low-noise cast iron drums for light- to medium-duty cranes?
We offer HT200/QT400-15 options, centrifugally cast and precision-grooved — in stock and ready to ship.
📩 Request a quote today — get specs, pricing, and lead time within 24 hours.