Pulley wheels for sale, Crane pulley wheels block, crane pulley wheel overview

Pulley wheels for sale. Crane pulley wheels for sale from Dongqi crane wheel manufacturer and supplier. Crane pulley wheels overview, crane pulley wheels inspection and requirements, and crane pulley wheel scrapped standard tips for your reference. Get your crane parts now.

Crane pulley wheels for sale

Pulley wheel block

A pulley wheel as one of the important crane parts is a set of simple tool consisted of one or more wheels over which a rope can be looped for the purpose of labor saving and movement direction changing. pulley wheels can be divided into crown block/ fixed pulley wheel and fall block /movable pulley wheel based on functions of pulley wheels while based on materials, pulley wheel blocks can be classified into cast iron pulley wheel, cast steel pulley wheel, nylon pulley wheel, and aluminum pulley wheels, etc.

Crane pulley wheel for sale 

Types and Features of pulley wheel block

Crane pulley wheel functions

According to different functions, pulley wheels can be divided in crown block/ fixed pulley wheel and fall block/ moveable pulley wheel.

Crown pulley wheel/ fixed pulley wheel used in the lifting operations is meant to change the moving direction of wire rope while the fall block / moveable pulley wheel is used to save the effort and energy. Therefore, they are coordinated to consist the pulley wheel block which can save energy and change the direction of movement at same time.

Crane  pulley wheel materials

Based on different materials, pulley wheels can be classified into cast iron pulley wheel, cast steel pulley wheel, nylon pulley wheel, and aluminum pulley wheels.

Cast iron pulley wheel

Cast iron pulley wheels can be further divided into gray cast iron pulley wheel and nodular cast iron pulley wheel. The gray cast iron pulley wheel has the features of good performance, little wear to wire rope which is widely used in light working duty cranes. On the contrast, the nodular cast iron pulley wheels can stand more collision than that of gray cast iron and they are widely used in the heavy duty cranes.

Cast steel pulley wheel

Cast steel pulley wheel has the features of higher strength and toughness but less manufacturability. Due do the high hardness on the surface, cast steel pulley wheel may cause big wear damage to wire rope and are usually adopted by heavy duty conditions. As the large diameter pulley wheel is concerned, the cast steel pulley wheel are favored because the welding capability and comparatively light weight.

Nylon pulley wheel

Nylon pulley wheels are widely used on the cranes. Nylon pulley wheel has the features of light, wearable, and low stiffness.

Aluminum pulley wheel

Aluminum pulley wheel is also widely adopted on the cranes. Aluminum pulley wheel has the features of low hardness and low wear damage to wire rope.

DQCRANES can provide you optimal pulley wheel for your material handling equipment. Free consultation and customized pulley wheels are available. DQCRANES is here to lift you up!

Crane pulley for sale 

Daily inspection and requirements for pulley wheel block 

• Dongqi overhead crane dismantling repair pulley wheel group, check the crack
• Maintenance of the pulley wheel groove
•  Inspection of shaft hole
• Assembly
• Crane pulley wheel shaft shall not have cracks, the journal shall not wear the original diameter of 30%, the taper is not greater than 5%, beyond this value should be replaced;
• With a model to check the pulley wheel groove, radial wear should not exceed 30% of the wall thickness, or should be scrapped. Shall not exceed the standard can be repaired, after the overhaul with a model check, the bottom and lateral clearance should not be greater than 0.5mm, trough centerline and pulley wheel centerline deviation should not be greater than 0.2mm, rope groove center of the contour Deviation should not be greater than 1mm;
• Single-beam Overhead Crane overhaul, the shaft hole allows no more than 0.25CM2 defects, the depth should not exceed 4mm;
• After assembly, should be able to hand flexible rotation, lateral swing shall not exceed D / 1000. D represents the nominal diameter of the pulley.

Crane pulley wheel scrapped standard

When there are the following defects, the pulley wheel should be scrapped and replaced:

• Wall thickness wear amount of the pulley wheel rope groove reaches 20% of the original thickness;
• Radial wear amount of the pulley wheel rope groove bottom is more than 50% of the rope diameter or uneven wear more than 3mm;
• Cast iron pulley wheels with serious crack and break;
• Pulley wheel rim with serious damage;
• There are other defects of the pulley wheel damage to wire rope.

Pulley wheels for sale. Crane pulley wheels for sale from Dongqi crane wheel manufacturer and supplier. Crane pulley wheels overview, crane pulley wheels inspection and requirements, and crane pulley wheel scrapped standard tips for your reference. If you need crane parts for your overhead crane, gantry crane or other Types of cranes or electric hoists, please feel free to contact us to get your crane pulley wheels now.