Home > Crane Parts > Pulley block
Contact Info
Mobile Phone
Whatsapp/Wechat
Address
No.18 Shanhai Road, Changyuan City, Henan Province, China
Rolled Pulley Block
Rolled Pulley Block
Rolled Pulley Block
Rolled Pulley Block
Rolled Pulley Block
Rolled Pulley Block
Rolled Pulley Block
Rolled Pulley Block

Rolled Pulley Block

Tonnage: 5t,10t,16t,20t,32t,50t
Axis length L:130,310,376,470,526,555
Overview
Features
Parameter
Application
Overview
Rolled pulley blocks are key components of lifting machinery manufactured by hot rolling or cold rolling forming processes. Compared with traditional cast pulleys, they have better mechanical properties and dimensional accuracy. Its core structure includes rolled rims, hubs, bearing seats and reinforcing ribs. The materials are mostly made of high-quality carbon steel or low-alloy steel, and the consistency of the pulley groove is ensured by precision rolling. This process can greatly reduce material defects, improve product strength and fatigue life, and is suitable for medium and high-intensity lifting operations.

Rolled pulley blocks have the advantages of light weight, high strength, and good wear resistance. Their surface finish and dimensional accuracy are better than cast pulleys, which can effectively reduce wire rope wear. They are mainly used in equipment such as bridge cranes, gantry cranes, tower cranes, etc., especially suitable for frequent lifting or high-speed operation. Some heavy-duty rolled pulleys also adopt a segmented structure design, which is easy to maintain and replace, and the hardness and toughness can be further improved through heat treatment.

Daily maintenance requires regular inspection of rope groove wear, bearing lubrication and structural deformation to ensure that the pulley runs smoothly without abnormal noise. When selecting the model, the corresponding specifications should be matched according to the lifting weight, wire rope diameter and working level, and reference should be made to industry standards such as JB/T 9005. For high temperature or corrosive environments, rolled pulleys with surface coating or stainless steel can be selected to extend the service life.
Features
Rolled pulley block is a pulley assembly manufactured by rolling process, with the following performance characteristics:
High strength and wear resistance
Made of high-quality steel, it has high material density, compact structure and strong load-bearing capacity. The surface is hardened (such as quenching, galvanizing, etc.), with good wear resistance, suitable for frequent operation and high-load environment.
Lightweight design
The rolling process can accurately control the material distribution, reduce weight while ensuring strength, and reduce the overall load of the equipment.
Smooth operation and low noise
The pulley groove design is precise, with high matching degree with wire rope or rope, reducing friction and jumping, and running more smoothly. The use of rolling bearings or sliding bearings further reduces noise and vibration.
High precision and consistency
The rolling forming process can ensure the high precision of the pulley size and shape, the pulleys in the group are highly interchangeable, and the installation is easy. Suitable for precision transmission systems (such as cranes, elevators, etc.).
Anti-corrosion performance
The surface can be galvanized, sprayed or coated with anti-rust paint to adapt to humid and corrosive environments (such as ports, mines, etc.).
Easy maintenance
The structural design is simple and the sealing is good (such as bearings with dust covers), reducing the frequency of lubrication and maintenance costs.
Didn't find your industry solution? Consult our technical experts immediately.
Parameter
Serial number Figure No. tonnage size
Pulley diameter d/D Axis length L magnification Pulley spacing L1
1 G858B 5t Ø 250/ Ø 300 130 2  
2 G859B 10t Ø 400/ Ø 450 310 3 84
3 G860B 16t Ø 500/ Ø 565 376 3 140
4 G861B 20t Ø 500/ Ø 565、Ø 300/ Ø 360 470 4 92、92
5 G862B 32t Ø 610/ Ø 680、Ø 400/ Ø 470 526 4 130、130
6 G863B 50t Ø 710/ Ø 785 555 5 104、104、104
Support

Weihua Aftermarket Keeps Your Equipment Running

Multi-Brand Technical Excellence
25% Cost Saving
30% Downtime Reduction
your Name *
your Email *
your Phone
your Whatsapp
Your company
Products&service
Message *

Related Products

Crane Heavy Pulley

Crane Heavy Pulley

Material
Cast iron/cast steel/alloy steel
Performance
High load-bearing capacity, anti-drop groove, long service life
Double Beam Crane Pulley Block

Double Beam Crane Pulley Block

Material
High-strength alloy steel or cast steel
Performance
High load-bearing capacity, anti-drop groove, long service life
Mine Hoist Pulley Block

Mine Hoist Pulley Block

Material
Cast iron/cast steel/alloy steel
Performance
High strength, high wear resistance, corrosion resistance and impact resistance
Crane Pulley Block

Crane Pulley Block

Material
Cast iron/cast steel/alloy steel
Performance
High load-bearing capacity, anti-drop groove, long service life
Chat Now
Email
info@craneweihua.com
Whatsapp
+86 13839050298
Inquiry
Top
Share your lifting capacity, span, and industry needs for a tailor - made design
Online Inquiry
Your Name*
Your Email*
Your Phone
Your Company
Message*
X