Specifying an Impact Resistant Structure is the primary defense against warranty claims for heavy-duty car vacuums. Generic models often use brittle ABS housings and aluminum impellers that crack or shatter when ingesting gravel, leading to motor failure and eroding profit margins through product returns.
This analysis benchmarks material durability against the demands of 13,000Pa suction power. We evaluate the failure modes of Polycarbonate (PC) bins and plastic composite impellers, providing the engineering data needed to specify a vacuum that withstands real-world debris impact without catastrophic failure.
What happens when a stone hits ABS plastic at 100km/h?
ABS plastic will likely crack from a 100 km/h stone impact. Lab tests don’t mimic this concentrated force, making high-quality ABS grades critical for durable product housings.
Lab-Tested Strength vs. Real-World Impact
In a controlled lab setting, ABS shows excellent impact resistance, typically around 200–250 J/m. This strength comes from its polybutadiene rubber component, which is great at absorbing shocks from broad impacts, like a pendulum strike in a standard test.
A stone flying at 100 km/h is a completely different problem. Its kinetic energy is focused on a tiny, often sharp point. This concentrates the force so intensely that it’s far more likely to cause a crack or fracture than a standardized test strike ever would.
Why High-Quality ABS Housing Matters
This distinction is critical for products used in tough environments. Our KelyLands car vacuum cleaners, for instance, feature a high-quality ABS housing. We engineer it specifically to better withstand the accidental drops and impacts that happen all the time inside a vehicle.
By selecting specific grades of ABS, we get the right balance. The vacuum remains lightweight and easy to handle, but the housing has the toughness needed for long-term, real-world use. It’s not just about passing a lab test; it’s about surviving in a customer’s car.

Why is Polycarbonate (PC) mandatory for High-Suction bins?
Polycarbonate (PC) isn’t mandatory but is highly preferred for high-suction bins. Its impact resistance handles high-speed debris like sand without cracking, ensuring reliability under powerful suction.
Impact Resistance Against High-Speed Debris
Powerful suction accelerates small, hard debris like pebbles and sand to high speeds inside the dustbin. While a common material like ABS has good general durability, it can crack or fracture when struck by a sharp object at high velocity. Polycarbonate is extremely tough and can flex slightly upon impact. This property allows it to absorb the energy from fast-moving debris, preventing cracks that could compromise the bin’s integrity and damage internal components like the motor and fan assembly.
PC Housing for High-Power 13,000Pa Vacuums
Material choice is critical for performance and safety. At KelyLands, we specify a high-quality Polycarbonate and ABS housing for our high-performance vacuum models. This is essential for units that deliver up to 13,000Pa of suction power. At that force, the bin must withstand both the intense negative pressure and the projectile-like impacts from debris. Using PC provides the necessary toughness to ensure the housing contains everything reliably without failing over the product’s lifespan.
Source Powerful, Certified & Customizable Car Vacuums

Aluminum vs. Plastic Impellers: Which shatters on impact?
Aluminum impellers are brittle and can shatter on impact. Plastic impellers absorb impact better, tending to crack instead—a safer failure mode for vacuums ingesting hard debris.
| 特徴 | Aluminum Impeller | Plastic Composite Impeller |
|---|---|---|
| Failure Mode | Brittle Failure | Ductile Failure |
| Impact Response | Shatters into fragments | Cracks or deforms |
| Key Weakness | Poor impact damping | Lower heat resistance |
| Primary Advantage | High mechanical strength | Superior shock absorption |
Brittle Failure in Metals vs. Impact Absorption in Plastics
Metals like aluminum have high hardness but are prone to brittle failure. When a hard object like a small stone strikes an aluminum impeller at high speed, the impact energy has nowhere to go. The material can’t flex, so it shatters catastrophically. This sends sharp metal fragments through the device, risking damage to the motor and housing.
Engineering plastics, like the ABS and PC composites used in vacuum components, are designed differently. Their molecular structure allows them to absorb and dampen sudden impact energy. Instead of shattering, the material flexes and is more likely to develop a localized crack. This is a much safer failure mode, as it contains the damage and prevents secondary destruction inside the vacuum.
Impeller Design for 13,000Pa Debris Suction
Our high-performance car vacuums generate up to 13,000Pa of suction. This level of power is strong enough to pull in heavy, hard debris like gravel, sand, and small pebbles from car floor mats. Inevitably, some of this debris will strike the impeller at very high speeds.
We use lightweight plastic composite impellers specifically for their impact resistance. While a metal impeller might seem “stronger,” it would be a critical liability in this application. A plastic impeller ensures that if a stone is vacuumed up, the system is far less likely to experience catastrophic failure. The impeller might get nicked or even crack, but it won’t explode and destroy the motor—a key consideration for product longevity and user safety.

Has the fan been dynamically balanced to survive vibration?
Yes, our fans undergo dynamic balancing. This process precisely adjusts the impeller’s mass distribution to minimize vibration, protect the motor from wear, and ensure long-term reliability.
How Balancing Prevents Mechanical Failure
Dynamic balancing is a non-negotiable step in our manufacturing process. It corrects the mass distribution on the fan impeller to nearly eliminate vibration when it spins at high speed. An unbalanced fan creates forces that cause cascading problems, starting with bearing abrasion and ending with a shortened motor lifespan or complete failure. This simple step prevents expensive mechanical issues down the line.
Our Commitment to Low-Noise Operation and Motor Durability
Properly balanced rotating parts are essential to meeting our low-noise standard of ≤ 75dB. Less vibration directly translates to quieter operation. This manufacturing step also protects our high-performance motors from the constant stress that vibration causes, ensuring the vacuum delivers consistent power and long-term reliability for your customers.
Frequently Asked questions
ダストビンは衝撃に強いポリカーボネート(PC)製ですか?
ポリカーボネート(PC)を採用して強度を高めた掃除機もあるが、これは普遍的な基準ではない。耐久性は全体的なデザインと素材の品質に依存します。ケリーランドの掃除機は、通常の車内清掃での衝撃や落下に対応できるよう、高品質のABSまたはPCハウジングを使用しています。.
モーターのインペラは、飛散防止のために金属製ですか?
そう、多くの高性能掃除機にはアルミニウム合金のインペラーが使われている。その主な理由は強度だけでなく、軽量であることで、モーターがより速く、より効率的に回転し、余分な重量や熱を伴わずに強力な吸引力を生み出すことができるからです。.
バキュームは高速破片の衝突に対してテストされていますか?
正式な高速衝撃テストは、一般消費者向けの車用掃除機では標準的な手順ではありません。その代わり、当社の製品はABSプラスチックのような耐久性のある素材で設計されており、日常的な使用や、砂、砂利、パンくずのような典型的な車の破片による偶発的な衝撃に耐えることが証明されています。.
砂や砥粒が透明なダストビンを傷つけたり、曇らせたりしませんか?
透明なビンの引っかきに対する耐性は、素材の品質に大きく依存します。どのようなプラスチックでも、砂のような研磨材による微細な擦り傷が時間の経過とともに見られますが、高品位プラスチックで作られたビンは、薄くて脆い代替品で作られたビンに比べて、擦り傷や曇りに対する耐性が格段に優れています。.
ゴミを吸い込んでモーターが壊れた場合、保証の対象になりますか?
ゴミによるモーターの故障は通常、製造上の欠陥ではなく、メンテナンス上の問題とみなされるため、ほとんどの標準保証ではカバーされません。KelyLandsの1年保証は、モーターやバッテリーのようなコアコンポーネントの不具合をカバーしますが、不適切な使用やフィルターの清掃漏れによる損傷は対象外となります。.
最終的な所感
金属製のインペラーを備えた一般的な掃除機は、単価が安い反面、たった一つの石で壊滅的な故障が発生し、返品やブランド毀損につながる危険性があります。耐衝撃性のPCビンと複合インペラーの採用は、モーターとお客様の評判を守るための意図的な技術的選択です。このように耐久性を重視することが、即売と信頼できる製品ラインとの違いなのです。.
当社のエンジニアリングを直接お確かめください。13,000Paの吸引力と材料の弾力性を実際にテストするために、サンプルのご注文をお勧めします。OEMの要件についてご相談の上、トライアル・オーダーをご希望の方は、当社までご連絡ください。.

