Product Overview
This 600mm series uses the same cover diameter across multiple load classes while adapting the frame structure and cover thickness to meet different load requirements. The A15 and B125 models are secured with two screw fixing points, while the C250 and D400 versions feature a T-lock system.
Product Drawing

Key Features
- Multiple load classes available – available in A15, B125, C250 and D400 load ratings to accommodate different installation requirements
- Two locking options – the series includes both screw-fixed and T-lock configurations depending on the load class and application
- Corrosion resistant composite material – fiberglass reinforced SMC composite will not rust and requires minimal maintenance in outdoor environments
- Lightweight construction – lower product weight helps reduce transportation and installation effort compared with traditional cast iron covers
- Slip-resistant surface – the textured cover surface improves grip under wet conditions
- Custom logo available – project logos and identification markings can be molded into the cover surface upon request
Specifications & Dimensions
| Load Class | Clear Opening | Cover Size | Frame Size | Overall Height | Cover Thickness | Weight |
|---|---|---|---|---|---|---|
| A15 | 600mm | 650mm | 785mm | 100mm | 40mm | 48kg |
| B125 | 600mm | 650mm | 760mm | 60mm | 40mm | 34kg |
| C250 | 600mm | 650mm | 780mm | 40mm | 26mm | 23kg |
| D400 | 600mm | 650mm | 780mm | 40mm | 26mm | 14kg |
Technical Specifications:
- Material: SMC Composite
- Clear Opening: 600mm
- Standard: EN124
- Shape: Round
- Locking System: A15/B125 – Two Screw Locks / C250/D400 – T-Lock System
Applications
A15:
- Green areas
- Sidewalks
- Pedestrian zones
B125:
- Residential parking areas
- Footpaths
- Light-duty access routes
C250:
- Kerbside installations
- Residential streets
- Light traffic roads
D400:
- Urban roads
- Commercial parking areas
- Vehicle traffic zones
FAQ
What is the difference between screw locks and T-lock system?
Screw locks use two screws to fasten the cover to the frame, suitable for A15 and B125. T-lock system provides a more secure locking mechanism for higher load classes C250 and D400.
Can you provide OEM / ODM service?
Yes. OEM and ODM services are available. Custom logo, color, surface pattern, and dimensions can be produced according to project requirements.
What is your delivery time?
Normally, the production lead time is about 15–25 days depending on order quantity and product specifications.
What is the MOQ?
MOQ depends on the product size and specifications. Please contact us for detailed information.
What packaging method do you use?
The products are normally packed on export pallets for safer transportation and easier loading and unloading.
Do you provide warranty and after-sales service?
Yes. We provide one-year warranty service and technical support for our products. Please contact us for detailed after-sales information and project assistance.















