TOYO (Dongyouda) cleanroom modules are mainly divided into three major series. Each series adopts different technologies to achieve different levels of cleanliness, meeting various precision manufacturing requirements from general Class 100 to ultra-clean levels:
I. Cleanliness Levels of TOYO Cleanroom Module Core Series
ECB Series (Cleanroom Belt Module)
Standard cleanliness level: Class 10 (ISO Class 4)
Particles ≥0.5μm per cubic meter of air ≤35,200
Officially marked in the product manual: "Cleanliness Level CLASS10 / Cleanliness Degree CLASS10"
Technical features:
Fully enclosed structure to prevent external particles from intruding
Special steel belt design to reduce internal particle generation
Vertical installation is strictly prohibited (the belt structure has no self-locking capability)
Application scenarios: Semiconductor testing equipment, precision assembly production lines, LCD/OLED panel handling
GCH Series (Cleanroom Track-Embedded Module)
Standard cleanliness level: Class 10 (ISO Class 4)
Enhanced mode: Class 1 (ISO Class 3) (when connected to an external negative pressure system)
Particles ≥0.1μm per cubic meter of air ≤10
Technical features:
Track-embedded design to reduce exposure of moving parts
An external negative pressure connector can be added to connect to a vacuum source for actively extracting internal dust
Special steel belt structure to significantly reduce dust generation
Application scenarios: Semiconductor wafer handling, precision positioning of lithography machines, medical sterile equipment, food and pharmaceutical production lines
ECH Series (Cleanroom Screw Slide Module)
Standard cleanliness level: Class 10 (ISO Class 4)
Enhanced mode: Class 1 (ISO Class 3) (when connected to an external negative pressure system)
Technical features:
Enclosed design combined with a special lubrication system to suppress dust
C7 grade precision screw with positioning accuracy up to ±0.005mm
Optional negative pressure system to further improve cleanliness
Application scenarios: Precision testing equipment, optical instrument assembly, medical equipment manufacturing
II. Technical Implementation and Comparison of TOYO Cleanliness Levels
Standard Class 10 (Class 100) Implementation Technology
Fully enclosed housing: Prevent external contaminants from entering internal moving parts
Special materials: Low-dust-generating steel belts are used instead of traditional transmission components
Sealing structure: Multi-seal ring design to prevent particle penetration
Internal optimization: Reduce friction between internal components to lower dust generation
Class 1 (Ultra-Clean Level) Enhancement Solutions
| Series | Upgrade Method | Principle | Effect |
| ------ | -------------- | --------- | ------ |
| GCH | External negative pressure system | Continuously extract internally generated micro-dust through the negative pressure connector | Reach Class 1 level (≤10 particles of 0.1μm per cubic meter) |
| ECH | Negative pressure connector + vacuum source | Actively remove trace dust generated by screw movement | Upgrade from Class 10 to Class 1 |
TOYO Cleanroom Module Level Comparison Table
| Series | Standard Cleanliness Level | Enhanced Mode Level | Transmission Method | Typical Applications |
| ------ | -------------------------- | ------------------- | ------------------- | -------------------- |
| ECB | Class 10 (ISO 4) | Not applicable | Belt drive | General precision assembly, testing equipment |
| GCH | Class 10 (ISO 4) | Class 1 (ISO 3) (with negative pressure) | Track-embedded + steel belt | Semiconductor, medical, food sterile environments |
| ECH | Class 10 (ISO 4) | Class 1 (ISO 3) (with negative pressure) | Screw drive | High-precision positioning, optical testing equipment |
III. Matching of TOYO Cleanroom Modules with Application Scenarios
Semiconductor Industry
Wafer handling: GCH Series (Class 1) to avoid contamination of the wafer surface
PCB board inspection: ECB Series (Class 10) to meet Class 1000 cleanliness requirements
IC packaging: ECH Series (Class 10) to ensure solder joint precision and cleanliness
Display Panel Manufacturing
OLED/LCD production lines: ECB Series (Class 10) to prevent bright spot defects on panels
Glass substrate transmission: GCH Series (Class 10/Class 1) for high-speed stability and low dust
Medical and Precision Testing
Precision surgical instruments: GCH Series (Class 1) to control microorganisms and particles
Optical testing platforms: ECH Series (Class 10) to ensure measurement accuracy is not disturbed by dust
IV. TOYO Cleanroom Module Selection Guide
Select the appropriate series according to the cleanliness requirements of the application scenario:
V. Summary
TOYO cleanroom modules cover the full range of cleanliness requirements from Class 10 to Class 1 through three major series (ECB, GCH, ECH). Their technical core lies in enclosed design, application of special materials, and optional negative pressure systems.
ECB Series: Belt drive, standard Class 10, suitable for general precision scenarios
GCH Series: Track-embedded + steel belt, standard Class 10, can reach Class 1 with negative pressure, most widely used
ECH Series: Screw drive, standard Class 10, can reach Class 1 with negative pressure, highest positioning accuracy
TOYO cleanroom modules have passed third-party certifications such as SGS, confirming compliance with corresponding cleanliness standards, and are ideal choices for industries with strict cleanliness requirements such as semiconductors, medical care, and display panels.
