Fixed moulds for box-culverts
Monobox
Hydraulically retractable and non-adjustable moulds for standardised box-culverts.
The Monobox by Construx-Weckenmann is a non-adjustable, hydraulically retractable formwork system designed for the efficient casting of standard box culverts. Engineered for precision, repeatability, and ease of use, this mould allows box culverts to be cast upright with minimal labor and high dimensional accuracy.
Purpose-built for standard box culvert production
The Monobox system is ideal for projects requiring repetitive culvert sizes and mass production, such as:
- Drainage systems
- Underpasses
- Utility tunnels
- Infrastructure box components
System Configuration
Outer Mould
- Constructed in two L-shaped sections, mounted on floor rails
- Both sections are manually movable for opening and closing
- Precisely machined closing parts ensure tight, repeatable seals
Inner Mould
- Hydraulically retractable design, operated via manual hand pump
- Retractable wedges allow easy demoulding without damaging edges
- Suitable for standardized use with no dimension adjustment required
Typical Dimensions & Options
| Parameter | Range |
|---|---|
| Culvert Length | Up to 3000 mm |
| Inside Width | 800mm to 4000mm |
| Inside Height | 400m to 2000mm |
| Wall Thickness | 150mm, 200mm, 250mm |
| Internal Chamfers | Triangular: 100mm, 200mm, 300mm |
Custom options available on request for project-specific needs.
Key Features & Benefits
- Hydraulic retraction system for safe and efficient demoulding
- Manually movable outer moulds on rails for easy access and setup
- Highly accurate machined components for perfect repeatability
- Upright casting for structural integrity and compact use of space
- Ideal for standard culvert production lines with fixed dimensions
- Available with various internal chamfer sizes for flow optimization and aesthetics
