Technology / product information

Modern washers subject detergent drawers to repetitive sliding cycles; fast closing leads to impact noise and rail wear.
KEM (Thailand) developed a Rotary + Rail Damper System combining a rotary damper with a linear rail to deliver soft, quiet, and stable drawer motion.


🔷 Structure & Features
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‐ Rotary Damper Unit: Controls rotational torque during opening/closing
‐ Linear Rail Module: Provides linear guidance and supplemental damping
Material: Engineering Plastic (POM / PA)｜Stroke: ≈ 140 mm｜Tolerance: ±0.1 mm｜Mounting: Horizontal Slide


🧠 Soft Motion Design (Japan)
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Synchronizes rotary and linear damping for precise motion, preventing rebound at final closure. Ideal for low-noise, high-durability residential appliances.


💡 Value for OEM
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‐ Lowers sliding resistance and impact noise
‐ Reduces wear on rails and covers
‐ Premium tactile motion feel
‐ Adjustable damping per drawer weight/size
‐ Fits vertical and horizontal designs


🧪 Testing & Quality Control
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Validated via linear accuracy and tens of thousands of open–close cycles under realistic temperatures.
✅ Verified by KEM (Thailand) Engineering Team under Katoh Electrical Machinery Co., Ltd. (Japan) QA standards [1][2].


📍 Case Example
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Adopted in new-gen front-load and top-load washers for quiet, controlled detergent drawer motion.


📞 Contact KEM (Thailand)
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For OEM teams building soft-motion detergent drawer systems, please reach our engineering team via the contact section below.

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🔗 Cluster Internal Link
• Basic Knowledge: https://prime.nc-net.com/96012/en/product_others/detail_goods/27654
• Advance Knowledge: https://prime.nc-net.com/96012/en/product_others/detail_goods/27655

📘 Glossary
‐ Rotary Damper: Controls rotational speed for smooth movement
‐ Linear Rail: Guides linear sliding travel
‐ Soft Motion Design: Japanese concept for gentle, quiet operation

📚 Reference
[1] Katoh Electrical Machinery Co., Ltd. (Japan), QA Standard for Motion Control Components.
[2] KEM (Thailand) Engineering Test Report, 2025.

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🗓️ Updated: 2025-11-07