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.

Miganda ya Korongo Iliyotupwa

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

Miganda ya Korongo Iliyoviringishwa

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

Miganda ya Kreni ya Nailoni

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

Miganda ya Kreni Iliyotengenezwa kwa Koreni za Juu

Vipengele

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

Vipengele

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

Vipengele

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.

Miganda ya Kreni ya Nailoni kwa Kreni za Juu za Ulaya

Vipengele

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.

Miganda ya Kreni Iliyoviringishwa kwa ajili ya Kreni za Portal za Bandari

Vipengele

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

Vipengele

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

1Kukata na Kuweka Vibanzi kwa CNC

Mashine ya kukata ya Mesell CNC ya Ujerumani hutoa mikato sahihi yenye Ra ≤12.5 μm.
Malighafi hupitia ukaguzi wa msingi wa spektrali na mitambo ili kuhakikisha nguvu ya kutosha.

2Kupasha Joto kwa Nyenzo Zinazodhibitiwa

Tanuru ya kupasha joto huongeza unyumbufu na hupunguza upinzani wa kutengeneza.
Kiwango sahihi cha halijoto huchangia uundaji upya wa fuwele na muundo sare wa nafaka.

3Uundaji wa Uundaji

Kishinikizo cha pete cha uundaji cha tani 8000 hutumia shinikizo la ndani kwa mguso mdogo wa kufa.
Inahitaji 1/5–1/10 pekee ya nguvu ya kawaida ya uundaji yenye mzunguko mfupi wa dakika 2–4.

4Matibabu ya Joto

Mashine ya kuzima induction hufanya ugumu uliolengwa kwenye mifereji ya kamba.
Udhibiti otomatiki huhakikisha kina thabiti cha ugumu kwa usahihi wa ± 0.05 mm.

5Usahihi Machining

Lathe ya pulley ya CNC hukamilisha kuzungusha na kuchimba visima katika mpangilio mmoja.
Rudia nafasi ≤0.01 mm na umaliziaji wa uso Ra ≤1.6 μm.

6Final Inspection & Packing

Ukaguzi wa vipimo, ukaguzi wa mfereji, na upimaji wa mzunguko kabla ya kutolewa.
Ulinzi dhidi ya kutu na ufungashaji ulioimarishwa kwa ajili ya usafiri na uwasilishaji salama.

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Cindy

Meneja Mauzo wa Kimataifa

WhatsApp: +86 191 3738 6654
Barua pepe: sales@hndfcrane.com

Mimi ni Cindy, nina uzoefu wa miaka 10 katika tasnia ya kreni na nimekusanya maarifa mengi ya kitaaluma.

Ikiwa una mahitaji yoyote au maswali kuhusu cranes, tafadhali jisikie huru kuwasiliana nami, nitatumia ujuzi wangu na uzoefu wa vitendo kukusaidia kutatua tatizo!