English
COMPANY ADVANTAGE
COMPANY ADVANTAGE
High-quality products, superb technology
Production Line
Production Line
Our company has owned professional and specializedproduction lines for punching, assembling and testing
Our Product
Our Product
Various kinds of furniture caster wheels, industrial caster
wheels, trolleys etc.
Company Staff
Company Staff
Has more than 30 senior professional and technicalpersonnel, more than 20 quality management personnel
Walking performance test, salt spray test, brake fatigue test.
load test, impact force test and etc.
Packing And Shipping
Packing And Shipping
Safe packing, carton+pallet, delivery time usually within 20-30days.
Our Goal
Our Goal
Quality, Good Faith, Responsibility, Thanksgiving
Professional Test
Professional Test
ABOUT OUR COMPANY
ABOUT OUR COMPANY
QINGDAO UNIONLEVER METALPRODUCTS CO., LTD
QINGDAO UNIONLEVER METALPRODUCTS CO., LTD
High Quality Products
Professional Assistance
Customer First
High Quality Products
Professional Assistance
Customer First
LEARN MORE
Company News
What Are CastersCasters are a general term, including movable casters, fixed casters and movable casters with brakes. The movable caster is also called the universal wheel, its structure allows 360-degree rotation; the fixed caster is also called the directional caster.
Created on 2025.11.19
Structural Features Of CastersInstallation height: refers to the vertical distance from the ground to the installation position of the equipment, and the installation height of the caster refers to the maximum vertical distance from the bottom plate of the caster and the edge of
Created on 2025.11.19
Application Fields Of CastersMainly in trolleys, mobile scaffolding, workshop trucks and so on very widely.
The simplest inventions are often the most important, and casters are exactly that. At the same time, the level of development of a city is often positively correlated w
Created on 2025.11.19
Material Of CastersPolyurethane, cast iron cast steel, nitrile rubber (NBR), nitrile rubber, natural rubber wheel, silicone rubber wheel, neoprene rubber wheel, butyl rubber wheel, silicone rubber (SILICONE), ternary ethylene propylene
Created on 2025.11.19
Bearing Weight Of CastersCarrying weight: T=(E+Z) / MxN
T = weight carried by each caster
E = the weight of the means of transport
Z = weight of moving object
M = number of effective loads on wheels
N=safety factor, generally take 1.3~1.5
(The factors of location and uneven
Created on 2025.11.19
Classification Of CastersWhether to turn
Divided into directional casters and non-directional casters (ie universal casters).
The directional caster has no rotating structure and cannot be rotated; the structure of the swivel caster allows 360-degree rotation.
Casters by lo
Created on 2025.11.19
Application Industry Of CastersIndustrial, commercial, medical equipment and machinery, logistics and transportation, environmental cleaning supplies, furniture, electrical appliances, beauty equipment, machinery and equipment, craft products, pet supplies, hardware products and o
Created on 2025.11.19
How To Choose Caster Wheels1. Select the wheel material: first consider the size of the road surface, obstacles, residual substances on the use site (such as iron filings, grease), environmental conditions (such as high temperature, normal temperature or low temperature) and t
Created on 2025.11.19
How To Choose Caster Wheel Frame1. Usually choose a suitable wheel frame to first consider the weight carried by the casters, such as supermarkets, schools, hospitals, office buildings, hotels and other places, because the floor is good, smooth and the goods to be handled are light.
Created on 2025.11.19
Caster Size And Common TypesCaster sizes are usually: 30-40 (1.5 inches), 45-50 (2 inches), 60-65 (2.5 inches), 75-77 (3 inches), 88 (3.5 inches), 90-96 (3.5 inches), 100-101 (4 inches), 125-128 (5 inches), 150 (6 inches), 200 (8 inches).
So what are the common types of industr
Created on 2025.11.19
How To Design Heavy Duty CastersBracket Design for Heavy Duty Casters
The brackets of heavy-duty casters usually use metal materials as the main body, including ordinary steel plate stamping, cast steel forming, die forging steel forming, etc., usually flat-plate assembly. The stee
Created on 2025.11.19
Different Characteristics Of Different CastersPolyurethane commonly known as superior glue, spring glue, full name: polyurethane or isocyanate polymer. Polyurethane is an elastomer between plastic and rubber, and its excellent comprehensive properties are not available in ordinary plastics and rubber.
Created on 2025.11.19
Introduction To Professional Terms Of Casters1. The height of the device
The installation height of industrial casters refers to the maximum vertical distance between the bottom plate of the caster and the wheel. Refers to the vertical distance from the ground to the location of the equipment.
Created on 2025.11.19
Test Method For Casters1. Impact test
Any item may collide and vibrate due to transportation, use, storage, etc., but the product will be defective or even unusable for a certain period of time. Furniture is often vulnerable to impact due to its large size and weight, and
Created on 2025.11.19
Daily Maintenance Of CastersHow to prolong the service life of industrial casters is a concern of many users. The service life of casters is closely related to its maintenance. The following focuses on:
1. The casters are correctly and reliably installed in the designed position.
Created on 2025.11.19
Introduction To Universal WheelThe universal caster is the so-called movable caster, and its structure allows 360-degree rotation horizontally. There are many materials for the universal wheel, the most common materials are: nylon, polyurethane, rubber, cast iron and other materials.
Created on 2025.11.19
The Purpose And Function Of Caster ElectroplatingThe purpose of caster plating:
The purpose of caster electroplating is to coat the metal coating on the base material to change the surface properties or dimensions of the base material. The universal wheel electroplating can enhance the corrosion resistance.
Created on 2025.11.19
How To Design Heavy Duty CastersBracket Design for Heavy Duty Casters
The brackets of heavy-duty casters usually use metal materials as the main body, including ordinary steel plate stamping, cast steel forming, die forging steel forming, etc., usually flat-plate assembly. The steel
Created on 2025.11.19
About The Selection Of Casters1. The material of the wheel: the materials used for the wheels in the clean workshop are generally nylon, polyurethane, and super artificial rubber (usually, ordinary rubber wheels, especially black ones, are not used, which rub against the ground a
Created on 2025.11.19
How To Choose CastersThe use of industrial caster universal wheels is to reduce labor intensity and improve work efficiency. Choose the right caster for your use according to the application, conditions and requirements (convenience, effort, durability). Consider the fol
Created on 2025.11.10
How To Design Heavy Duty CastersBracket Design for Heavy Duty Casters
The brackets of heavy-duty casters usually use metal materials as the main body, including ordinary steel plate stamping, cast steel forming, die forging steel forming, etc., usually flat-plate assembly. The st
Created on 2025.11.10
About The Selection Of Casters1. The material of the wheel: the materials used for the wheels in the clean workshop are generally nylon, polyurethane, and super artificial rubber (usually, ordinary rubber wheels, especially black ones, are not used, which rub against the ground).
Created on 2025.11.10
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