FAQ-Shuangli Caster-Roll Anywhere Anytime

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Shuangli caster Roll Anywhere ,Anytime ....

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What types of braking functions do casters have? Which ones are suitable for different needs?

There are two common types of braking functions: ① Side brakes: When stepped on, they clamp the wheel to prevent rolling but cannot lock the swivel of swivel casters. They are easy to operate and low-cost, suitable for light-load equipment (office chairs, small trolleys) and scenarios with low requirements for fixing; ② Total brakes (double brakes/locking brakes): When stepped on, they not only clamp the wheel (to limit rolling) but also lock the swivel bracket (to limit steering), providing more stable fixing. They are suitable for heavy-duty equipment (hospital beds, laboratory instruments), slopes/uneven ground, and scenarios that require complete position fixing. In addition, foot brakes (pedal-type) are suitable for frequent fixing, while manual brakes (knob-type) are suitable for long-term static equipment.

What application scenarios are rubber, polyurethane, and nylon wheel materials suitable for respectively?

These three materials are suitable for different scenarios: ① Rubber wheels (natural rubber/nitrile rubber): They have good elasticity, are quiet, and do not scratch soft floors (wooden floors, tiles). However, they have poor wear resistance and are not resistant to high temperatures (≤80℃), making them suitable for indoor furniture (sofas, coffee tables) and office equipment; ② Polyurethane wheels (PU wheels): They balance quietness and wear resistance, are oil-resistant, temperature-resistant (≤120℃), and floor-friendly, making them suitable for industrial trolleys, medical equipment, and supermarket shopping carts; ③ Nylon wheels (PA wheels): They have high hardness, strong wear resistance, large load capacity, and are resistant to high and low temperatures (-40℃~180℃) and corrosion. However, they are noisy and easy to scratch soft floors, making them suitable for heavy-duty equipment (warehouse shelves, machine tools) and rough outdoor ground (construction site trolleys).

What is the difference between swivel casters and fixed casters? How to match them in practical use?

The core difference lies in steering flexibility: Swivel casters are equipped with a 360° rotating bracket, allowing flexible turning, and are suitable for parts of the equipment that need frequent direction changes (e.g., the front end of furniture); Fixed casters have no rotating bracket and can only roll in a straight line, making them suitable for parts that need to move stably in a straight line (e.g., the rear end of furniture). In terms of matching, the combination of "2 swivel casters + 2 fixed casters" is usually chosen (e.g., shopping carts, office chairs). For heavy-duty equipment (e.g., logistics trolleys), the combination can be increased to "4 swivel casters + 2 fixed casters" to balance flexibility and stability.

What does the "load capacity" of a caster mean? How to calculate the required caster load capacity for equipment?

The "load capacity" of a caster refers to the maximum weight that a single caster can safely bear under normal usage conditions (e.g., flat ground, constant-speed movement). It is determined by the wheel material, bracket structure, and bearing type, and manufacturers clearly specify it in product parameters. When calculating, first calculate the "total equipment weight + estimated load weight", then multiply by a safety factor of 1.2-1.5 (to cope with uneven ground and sudden impacts), and finally divide by the number of casters. For example, if a piece of equipment with a total weight of 1000kg is equipped with 4 casters, the load capacity of a single caster should be ≥ (1000×1.3) ÷ 4 = 325kg, so a caster model with a load capacity of ≥ 325kg should be selected.

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ZHONGSHAN KAIBEIDE IMPORT AND EXPORTCO.,LTD

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