CUSTOMIZED SOLUTIONS
Casters are essential components in numerous fields, including industry, logistics, and furniture. Their performance and quality directly impact the efficiency and safety of equipment. For medium and light-duty casters, selecting the appropriate caster model based on load is crucial for ensuring proper equipment operation and extending its lifespan. This article will focus on load-bearing selection for medium and light-duty casters, detailing the factors influencing caster selection and providing technical guidance to help customers find the most suitable caster.
As a professional caster supplier, Giessen Casters specializes in the research and development and wholesale of various casters. Please contact us at Giessencasters@gmail.com or visit https://www.giessencasters.com for more product information.
Medium and light-duty casters generally refer to casters with a rated load between 20 kg and 200 kg, falling between light and heavy-duty casters. These casters are widely used in applications such as office furniture, medical equipment, light industrial logistics equipment, and small machinery.
Mostly indoor environments: such as offices, hospitals, and laboratories, with flat floors and relatively stable loads.
Relatively limited load capacity: primarily carrying medium- and light-weight equipment or items.
Frequent movement, requiring smooth operation: primarily focused on improving work efficiency and operator comfort.
Carry the weight of the equipment and ensure stability.
Ensure smooth rotation and reduce pushing resistance.
Adapt to the floor material to prevent damage.
Corrosion resistance, dust resistance, and other features should be selected based on the environment.
Caster load capacity refers to the maximum weight a caster can safely carry under normal use. When selecting a caster, consider the load capacity distributed across each caster relative to the overall weight of the equipment.
Insufficient load capacity: Casters are susceptible to damage or even sudden breakage, causing equipment to tip over.
Excessive load capacity: Increased costs and unnecessary volume and weight, affecting equipment mobility.
Professional caster suppliers will provide precise load ratings based on the caster material, structural design, bearing configuration, and other factors for customer reference.
| Caster Material | Load Capacity | Advantages and Disadvantages | Typical Applications |
| Polyurethane (PU) | 30-150kg | Wear-resistant, quiet, and shockproof | Office furniture and medical equipment |
| Nylon (PA) | 40-180kg | High hardness and corrosion resistance | Light industrial machinery |
| Rubber | 20-100kg | Good shock absorption and cushioning, suitable for uneven surfaces | Logistics equipment |
| Cast Iron | 100-200kg | High strength but noisy | Heavy-duty equipment |
Bearings are key components that influence the load-bearing and rotational performance of casters. Common bearing types include:
Ball bearings: Offer medium load capacity and smooth rotation, suitable for light- to medium-duty casters. Needle roller bearings: Offer strong load-bearing capacity but slightly poor surface adaptability.
Bushing-type: Low cost but less wear resistance, suitable for light-duty casters.
A larger wheel diameter reduces the load and movement resistance of the caster, but also increases the overall size and cost of the caster. Common diameters for medium- and light-duty casters range from 50mm to 125mm.
Common mounting methods for medium- and light-duty casters:
Top plate type
Side plate type
Swivel type with brake
The mounting method affects caster load distribution and equipment stability and must be coordinated with the equipment structure.
Typically, the total equipment weight is evenly distributed among the casters, but in practice, load concentration and dynamic loads must be considered, allowing for a safety margin.
It is recommended to use a safety factor of 1.5 to 2 times to ensure caster stability under load fluctuations and uneven load bearing.
| Total Equipment Weight (kg) | Number of Casters | Rated Load Per Caster (kg) | Recommended Caster Diameter (mm) |
| 80 | 4 | 30-40 | 75-100 |
| 150 | 4 | 40-50 | 100-125 |
| 200 | 6 | 30-40 | 75-100 |
Equipment Weight: 90 kg
Number of Casters: 4
Recommended Material: Polyurethane wheel tread with ball bearings
Load Capacity: Each caster should have a minimum load capacity of 25 kg. Casters with a rated load of 40 kg should be selected.
Note: Floors are typically carpeted or hardwood floors, and should be quiet and wear-resistant.
Equipment Weight: 120 kg
Number of Casters: 4
Recommended Material: Polyurethane or rubber wheel tread, antibacterial preferred
Load Capacity: Each caster can support at least 35 kg, with a 50 kg rated load recommended.
Note: A brake is required for safety.
Equipment Weight: 180 kg
Number of Casters: 6
Recommended Material: Nylon wheel tread, needle roller bearing
Load Capacity: Each caster can support approximately 30 kg.
Note: The surface must be flat, and high strength and wear resistance are required.
Stable product quality and compliance with industry standards.
Provide technical support and assist with load selection.
Prompt delivery and attentive service.
Reasonable pricing, with wholesale discounts available.
As a professional caster supplier, Giessen offers a full range of medium- and light-duty casters, covering a variety of materials, wheel diameters, and mounting methods to meet diverse load requirements. We possess extensive industry experience and excellent after-sales service.
Clarify the equipment weight and number of casters.
Communicate in detail the operating environment and special requirements.
Select models based on the supplier's technical recommendations.
For wholesale purchases, please contact Giessencasters@gmail.com or visit https://www.giessencasters.com for more information.
Selecting the load capacity of medium- and light-duty casters is a systematic process, involving multiple technical specifications such as material, bearing, wheel diameter, and mounting. Choosing the right load-bearing caster not only ensures equipment safety but also enhances user experience and economic efficiency. As a professional caster supplier, Giessen looks forward to providing you with high-quality caster products and professional technical support. To purchase or wholesale casters, please contact Giessen Casters Supplier via email at Giessencasters@gmail.com or visit the website https://www.giessencasters.com for more details.
