High Strength Crane Sheaves with Precision Rope Grooves

Forged Sheaves

High Load & Durable
Cast Sheaves

Low Cost & Mass Production
Precision Grooves

Extended Rope Life

4 Proven Crane Sheave Types for Distinct Performance Needs

Forged Crane Sheaves

Material: Precision steel 42CrMo, providing stable strength and good durability.
Forging Process: Improves metal structure and grain flow for high mechanical strength.
Cost Level: Higher cost due to complex forging steps.
Machinability: Easy to machine, causing low wire rope wear.
Typical Use: For conventional CD and MD electric hoist hooks.

Cast Crane Sheaves

Cost Efficiency: One-step casting enables complex shapes and a lower cost.
Service Life: Graphite lubrication plus quench, temper, and shot blasting reduce wear.

Rolled Crane Sheaves

Hot Rolling: Enhances sheaves bending, shear strength, and structural stability.
Precision Groove Grinding: Accurate groove radius for smoother wire rope contact.

Nylon Crane Sheaves

Spark-Free Safety: Machining produces no sparks, enhancing safety in flammable or explosive environments.
Typical Use: Commonly used in european type electric hoists hooks.

Proven Crane Sheaves for Multiple Applications

Cast Crane Sheaves for Overhead Cranes

Functies

Material: Cast QT400-18 steel.
Groove Surface: Grade 1 finish, RA 6.5.
Wheel-to-Rope Ratio: Diameter >20× wire rope diameter to prolong rope life.
Groove Profile: Complies with GB/ZBJ8006.1-87; ensures wire rope longevity.

Rolled Crane Sheaves for RMG Gantry Cranes

Functies

Groove Treatment: Medium-frequency hardened, HRC 40–50+.
Mounting Base: Split-type design with standard specifications for easy spare part interchange.
Rope Alignment: Entry/exit deviation ≤2.5°.
Wheel Diameter: Minimum 25× wire rope diameter.

Forged Crane Sheaves for Foundry Overhead Cranes

Functies

Material: Steel AISI-4140
Surface Hardness: Up to HRC 65 for enhanced wear resistance.
Rim Hardening Options: Rim Toughened (≤ RC 40); Deep Hardened (≤ RC 65*).
Compliance Standards: Complies with CMAA and the AIST #6 Crane Specifications.

Nylon Crane Sheaves for European Overhead Cranes

Functies

Ultra-Lightweight: Cast nylon sheaves weigh only 1/7–1/8 of steel.
Enhanced Rope Support: Elastic groove deformation under load increases rope–groove contact area, improving load distribution.
Corrosion Resistant: No rust or seawater corrosion; no coatings required.

Rolled Crane Sheaves for Harbour Portal Cranes

Functies

Material: Hot-rolled Q345B steel.
Groove Heat Treatment: Rope grooves hardened to RC40–45, hardening depth >2mm, precision machined.
Groove Depth: Minimum 1.5× wire rope diameter, smooth surface.
Rope Alignment: Rope entry/exit angle deviation ≤2.5° from wheel axis vertical plane.

Rolled Crane Sheaves for Mechanical Four Rope Grabs Bucket

Functies

Material Density: Sludge bulk density 0.8–0.9 t/m³ (1–3 spans); Formed fuel bulk density 1.1–1.3 t/m³ (4 spans).
Grab Volume: 2.5 m³ (sludge).
Wire Rope Diameter: 17.5 mm.

6 Key Stages in Precision Forged Crane Sheave Production

1CNC Cutting & Blanking

German Mesell CNC cutting machine delivers precise cuts with Ra ≤12.5 μm.
Raw materials undergo basic spectral and mechanical checks to ensure adequate strength.

2Controlled Material Heating

Heating furnace raises plasticity and lowers forming resistance.
Proper temperature range promotes recrystallization and uniform grain structure.

3Forging Forming

8000-ton forging ring press applies localized pressure with minimal die contact.
Requires only 1/5–1/10 of conventional forging force with a short 2–4 min cycle.

4Heat Treatment

Induction quenching machine performs targeted hardening on rope grooves.
Automated control ensures stable hardness depth with ±0.05 mm accuracy.

5Precisiebewerking

CNC pulley lathe completes turning and drilling in one setup.
Repeat positioning ≤0.01 mm with surface finish Ra ≤1.6 μm.

6Final Inspection&Packing

Dimensional checks, groove inspection, and rotation testing before release.
Anti-corrosion protection and reinforced packing for safe transport and delivery.

DAFANG CRANE: Your Trusted Partner for Cranes and Industrial Solution

Fabriekssterkte

Opgericht in 2006, Kapitaal: 84,65 miljoen USD
Wereldwijd meer dan 80.000 kranen geleverd
Geëxporteerd naar meer dan 100 landen, 130+ aftersalescentra

Intelligente productie

1.053.000 m² Intelligente Basis
Geautomatiseerde lijnen voor betrouwbare levering
Volledig zelfontwikkelde kranen en staalconstructies

Kwaliteit & Certificering

11 inspectiefasen, meer dan 200 testitems
Alles-in-één service: ontwerp, productie, logistiek, installatie en aftersales

DAFANG CRANE Holds Complete Certifications for Global Compliance

CE Certificate for Gantry Crane

EAC Certificate for Gantry Crane

ISO-kwaliteitsmanagementsysteemcertificaat

Nuclear Industry Quality Management System Certificate

Productielicentie van speciale apparatuur

Klantbezoek aan DAFANG CRANE-fabriek

Pakistaans | Certificaat Inleiding

Chili | Werkplaatsinspectie

Keniaans | Fabrieksrondleiding

Boliviaans | Fabrieksrondleiding

Wit-Russisch | Fabrieksrondleiding

Russia | Factory Tour

VS | Werkplaatsinspectie

Jordanië | Fabrieksrondleiding

Vertrouwd wereldwijd kraanmerk: ontdek DAFANG CRANE op internationale beurzen

FABEX & Metaal & Staal Saoedi-Arabië 2025 Tentoonstelling 1

Oezbekistan 8e Nationale Zijderoute-productententoonstelling Tentoonstelling 2

Oezbekistan Machine Expo 2025 Tentoonstelling 3

10e Changyuan Internationale Kraan Expo Tentoonstelling 4

Shanghai Heavy Machinery Exhibition 2024 Tentoonstelling 5

7e Changyuan Internationale Kraan Expo Tentoonstelling 6

24-uurs nauwkeurige koersen

Cindy

Internationale verkoopmanager

Whatsappen: +86 191 3738 6654
E-mail: sales@hndfcrane.com

Ik ben Cindy en heb 10 jaar werkervaring in de kranenbranche, waardoor ik over een schat aan professionele kennis beschik.

Heeft u vragen of wensen over kranen? Neem dan gerust contact met mij op. Ik zal mijn expertise en praktische ervaring gebruiken om u te helpen uw probleem op te lossen!