Product OverviewRecommended load ≤15T, capable of bearing medium work vehicles and heavy maintenance tool vehicles, well-matching the high-frequency operation and medium-load traffic needs of large inspection wells;
The reinforced composite structure is not prone to cracking or deformation in large inspection well environments, helping to improve the safety of large maintenance operations.
SMC composite material has strong erosion resistance in humid, mild-corrosion large inspection well environments, with an expected service life of over 20 years under proper use;
The anti-slip surface texture is not easy to accumulate dirt, making daily cleaning and maintenance relatively convenient.
Non-metallic material has no recycling value, which can alleviate the theft issue of traditional cast-iron large round inspection covers to some extent;
Dual handle holes are adapted to the weight of large-size covers, allowing easy opening by one person with tools and improving large inspection well maintenance efficiency.
Weighing about 35kg (vs. ~70kg for the same-sized cast-iron product), it is more convenient to install and carry, reducing labor input for large cover operations.
| Parameter | Specification | Description |
|---|---|---|
| Product Size | 900mm in diameter (Large Round) | Special matching size for large inspection wells |
| Material | SMC/FRP glass fiber-reinforced composite | Adapted to humid/corrosion scenarios of large inspection wells |
| Recommended Load | ≤15T | Suitable for medium work vehicles and heavy maintenance tool vehicles |
| Surface Design | Anti-slip cross texture + dual handle holes | Improves passing safety + facilitates large-size cover opening |
| Contact Info | jschangan111@gmail.com (customizable logo) | Manufacturer contact email |
| Applicable Environment | Municipal main road inspection wells, large park centralized inspection wells, etc. | Resistant to mild humidity and corrosion |
| Service Life | ≥20 years | Actual service life depends on usage scenarios and maintenance conditions |
Underground large inspection wells of municipal main roads
Centralized inspection wells of large industrial parks
Supporting inspection wells of urban rail transit
Underground large inspection wells of commercial complexes
| Feature | Chang’an Brand Composite Product | Traditional Cast-Iron Product |
|---|---|---|
| Weight (900mm size) | ~35kg | ~70kg |
| Opening/Maintenance Efficiency | One person with tools | Requires 4-5 people for handling |
| Anti-Theft Performance | Relatively high | Relatively low (prone to theft) |
| Annual Maintenance Cost | ≤55 RMB (surface cleaning) | ≥400 RMB (rust removal + maintenance) |
Clean debris from the large inspection well opening and confirm the size compatibility of the support frame with the opening;
After fixing the support frame, lay the cover smoothly aligned with the handle hole direction to ensure it fits the opening edge;
Conduct a light pressure test with a medium work vehicle to confirm the cover’s fitting stability.
Clean surface stains monthly to maintain anti-slip texture effectiveness;
Inspect the firmness of handle holes and buckles quarterly (focused verification is recommended after the rainy season);
No additional anti-corrosion treatment is required. If damaged, send an email to jschangan111@gmail.com to contact the manufacturer for replacement coordination.
With over 10 years of experience in large composite cover production, its round inspection covers have passed relevant certifications for municipal large facility materials;
Supports customization of large sizes, surface textures, and logos to meet different large inspection well scenario needs;
Special vehicle delivery + on-site installation guidance are available for bulk orders, ensuring the operation efficiency of large covers.
