脚轮材质怎么选?副牌料的坑,验收时全显形

应用领域 发布时间: 2026-09-16 1082 阅读

The casters wore flat and got stuck after pushing for half a year, making it hard to move them around the workshop. The industrial casters were not chosen correctly for load capacity and wear resistance, making it exhausting to push even one cart.

Pushing for half a year has worn down the caster wheels, making it hard to move.

Industrial casters are 'parts for pushing and pulling heavy loads': they must bear weight, be wear-resistant, and quiet. The materials need to bear weight, be wear-resistant, and quiet—conclusion first: TPU is mainstream for industrial casters; for light-duty casters, TPE has a higher cost-performance ratio.

The biggest pitfall of industrial casters: the pitfall of sub-brand materials, which become fully visible during inspection. When sub-brand materials are strictly inspected, they show up immediately — inspection is like a magic mirror for casters.

Industrial casters are functional components: cracking and wear-through are both problems. Choosing the right material ensures the cart is stable—functional components, don’t skimp on material costs.

Why do caster wheels tend to favor TPU?

Reasons to use TPU for industrial casters: good load-bearing, wear resistance, quiet operation, and long lifespan — together, these four make it suitable for casters.

Load-bearing is key: weight carrying must be implemented. Load-bearing tests should be included in acceptance—collapse means a problem.

Wear resistance cannot be compromised: surface friction. Wear resistance testing should be included in the acceptance—if it wears through, it's a problem.

Load-bearing rolling floor, three barriers

Load-bearing condition: carrying weight and pushing forward. Load-bearing data must be verified—collapse indicates a problem.

Implementation condition: ground friction. Wear resistance data must be tested — if it wears through, that's the problem.

Ground conditions: Ground conditions. Rolling data need to be checked — it's difficult, that's the problem.

TPU or TPE? A quick look at caster wheels

DimensionTPUTPE
Load-bearingGoodmiddle
Wear-resistantStrongmiddle
MuteCan doCan do
CostMedium-highmiddle
WeightmiddleLight
PurposeOverloadlightweight

Table reading: TPU is strong and wear-resistant but expensive; TPE is light and cost-effective — heavy-duty casters use TPU, light-duty use TPE.

Choose by load: heavy-duty TPU, lightweight TPE.

Caster acceptance: the secondary brand pit acceptance only becomes apparent

ProjectMethodstandard
Load-bearingBallast TestMeet the standard
Wear-resistantFriction TestMeet the standard
ScrollImplement testingEffort-saving
AppearanceVisual inspectionQualified

Table reading: Each item is strictly inspected, counterfeit brands reveal their true nature—hardness, wear, and rebound are measured in succession, and fluctuations in counterfeit brands cannot be hidden.

Acceptance is the litmus test for caster wheels.

Only looking at the price, three pits collapsed under weight

Pitfall 1: Only care about price. Loosen acceptance inspection, and the caster wheels will crack and chip after three months — acceptance must be strict.

Pitfall 2: Missing load-bearing test. Collapse — load-bearing test is a must.

Pitfall 3: Overstated wear resistance. Wear through — wear resistance should be measured and accepted based on actual tests.

When selecting caster wheel materials, first carry out strict inspection.

Three questions: How much weight can it bear, what standard is used for wear resistance, original package or sub-brand. One check: test by actually pushing — three questions and one check, supplier's details are clear.

Acceptance and verification must come first: fix the wear and rebound indicators before accepting the goods. Strict acceptance first, then talk about the price—acceptance is the lie detector for casters.

Making sample retention a habit: retain samples for each batch, and retest the load-bearing and wear resistance by batch. When changing materials between batches, compare first before increasing the volume—stable batches result in fewer customer complaints.

Caster wheels: Don't panic if something goes wrong, find the matching spot

PhenomenonReasonCountermeasure
collapseInsufficient load-bearingSwitch to high load-bearing material
wear throughInsufficient wear resistanceReplace wear-resistant material
CrackingInsufficient impactChange to impact-resistant material
arduousInsufficient scrollingReplace with low-resistance material
Batch DriftSide card fluctuationApproval batch

Mainstream industrial casters use TPU, Shore A 85-95, with load capacity inferred from wheel diameter. TPE is used for lightweight silent wheels, TPU for load-bearing and wear-resistant wheels — TPE saves money for light carts, TPU handles the load for heavy carts.

TPU wear-resistant and oil-resistant are hard but somewhat stiff and rough; TPE is quiet and soft but weak in load-bearing capacity. TPU for warehouse heavy carts and TPE for light turnover boxes—choose according to load and noise reduction requirements.

Caster oil soaking and swelling deformation, first check the formula for oil resistance, don't blame injection molding parameters. If the oil resistance system is incorrect, no matter how much you adjust the parameter window, it won't fix it—choose the oil-resistant TPU grade first.

Caster acceptance: load pressure changes, wear resistance based on wear, ground according to actual friction. Once the sub-brand material acceptance is strict, the results are revealed, and the standard is written into the contract—based on wheel diameter and floor core formula.

After adjustment, swelling is eliminated and 1000 hours of aging in one go, caster batches no longer show their shape. Each batch is retained to test oil resistance and wear resistance; compare material changes before scaling up.

Casters are selected by load and silence; heavy cart TPU, light transfer box TPE. TPU is wear-resistant and oil-resistant but slightly harder and rougher; TPE is quiet and soft but weak load-bearing; oil soaking swelling should first check oil resistance formulas and not blame injection molding parameters.

Load-bearing pressure variation, wear resistance by wear test, floor tested by actual friction three-axis test. Sub-brand material acceptance is strict and reveals results; standards are written into contracts, wheel diameter is determined by load core, and after 1000 hours of aging in one go, batch production is restored.

Standard is written into contracts; sub-brand material acceptance is strict and then revealed. Each batch is retained for oil resistance and wear testing; wheel diameter is tested by load core, aging for 1,000 hours at once before batch production.

Caster standards are written into the contract, sub-brand material is tightly defined and becomes apparent. Heavy cart TPU light turnover TPE is selected according to load; oil soaking swelling first checks oil resistance formula, load-bearing compression changes wear resistance according to wear,

aging over a thousand hours in one go.

Cologne customer case: insufficient oil resistance causes swelling and deformation, parameters adjusted for 1000 hours aging

Yantai industrial equipment factory, casters have insufficient oil resistance, swelling and deformation after oil soaking. Cologne cooperated to adjust injection molding parameters (mold temperature/material temperature/holding pressure), eliminating swelling and passing the 1000h aging test in one go. Parameter window locked, swelling cut off at the source—oil resistance issues, first look at the formula, then parameters.

Summary

For industrial caster selection, acceptance is strict first, load capacity is then tested, and the pits of secondary brand materials are fully exposed during acceptance; acceptance is like a magic mirror.

I got a phone call a couple of days ago, and the first sentence was, "How much does your nylon withstand ?"

This can't be answered directly. Temperature resistance depends on long-term continuous use, not short-term peaks; It also depends on the load, medium, and whether there is enhancement. With the same sentence, the answer can range from 100°C to above 200°C.

Ningbo Kelong New Materials Co., Ltd. produces modified thermoplastic elastomers, modified nylon (PA6 / PA66 / PA46 / PA11 / PA12 / PA6T / PA9T and nylon alloys), modified PPO / PPS, as well as nylon resins, sub-brand materials, and large package materials from major chemical giants in stock.

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