Technology / product information

KEM (Thailand)’s rotary damper controls lid and door movement in furniture and appliances.
It ensures smooth and quiet closing — ideal for soft-close design applications.


🔷 Key Takeaways
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‐ Rotary viscous damper with locking mechanism
‐ For furniture cabinet doors and washing machine inlet lids
‐ Operating temperature: -30°C to +80°C
‐ Unlocking force: 10.0 ± 2 N
‐ Working stroke: 2.6–2.7 mm
‐ Locked pull: ≥ 100 N | Life: ≥ 20,000 cycles
‐ Standards: GB/T 30512, GB 8410


⚙️ Technical Specifications (Based on Source Document)
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Operating Temp: -30°C to +80°C
Unlocking Force: 10.0 ± 2 N
Working Stroke: 2.6–2.7 mm
Locked Pull: ≥ 100 N
Durability: ≥ 20,000 cycles
Speed: 100 mm/min
Standards: GB/T 30512, GB 8410


🧠 Function & Principle
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The damper operates via a rotary viscous mechanism with an internal lock, providing smooth, controlled movement while minimizing noise and rebound.


💡 Benefits for OEMs
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‐ Reduces door impact and closing noise
‐ Prevents hinge wear
‐ Provides premium “soft motion” user feel
‐ Wide operating range: -30°C to +80°C


📍 Application Examples
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‐ Furniture cabinet doors
‐ Washer inlet doors
‐ Automatic home appliance lids


🧪 Quality Control
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Tested ≥ 20,000 cycles under -30°C to +80°C conditions following internal QA and GB standards.


📞 Contact KEM (Thailand)
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For OEM design consultation or damping customization, please reach our engineers via the contact form below.


❓ FAQ (AEO)
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Q1: What temperature range is supported?
A: –30 °C to +80 °C.

Q2: How many cycles tested?
A: ≥ 20,000 cycles.

Q3: What materials are used?
A: Not specified in the source document.


🔗 Cluster Internal Links
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- Basic Knowledge: “How to Select Torque for Rotary Dampers in Furniture Design”
- Advance Knowledge: “Soft Motion Systems under GB/T 30512 Compliance”

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📘 Glossary
‐ Rotary Damper: Viscous mechanism controlling rotational speed
‐ Unlocking Force: Force required to disengage the lock
‐ GB 8410: Flammability test standard for automotive interior materials

📚 Reference
[1] Product Data Sheet: 家电类 产品推荐 KEM (002).pdf – “Cabinet & Inlet” section
[2] Katoh Electrical Machinery Co., Ltd. (Japan) – QA Standard for Motion Control

#rotarydamper #softclose #cabinet #washingmachine #motioncontrol #KEMThailand

🗓️ Updated: 2025-11-10