Pre-Reclaiming Sand Attrition Unit
The JOEST Pre-Reclaiming Sand Attrition Unit is specifically designed for the granulometric preparation of chemically bonded molding and core sand. In foundries where larger sand lumps and blocks are frequently generated – for example, after shakeout of molding boxes or core packages – it ensures efficient pre-crushing.
With its compact and robust design and proven vibration technology, this machine series delivers maximum operational reliability and process stability. Positioned between the shakeout grate and downstream lump breakers, the Pre-Reclaiming Sand Attrition Unit conditions the material to ensure continuous discharge and trouble-free downstream processing.
Thanks to its modular adaptability and durable wear components, this solution makes a key contribution to quality assurance and cost reduction in sand reclamation.
FUNcTION
Technical data
Crushing Unit: A vibratory-mounted breaker plate in V-configuration
Gap Width: Manually adjustable to suit downstream process requirements
Lining: High-wear-resistant breaker plates or manganese steel sheets, bolted
Installation Options: Can be integrated above crushers or into existing sand reclamation systems
Drive: Vibration drive with robust bearings for continuous operation
Optional Feature: Electronic vibration monitoring for condition-based maintenance
Customization Options: Various screen meshes and wear protection packages available
Design: Compact and maintenance-friendly, ideal for confined plant areas
Typical Positioning: Installed between the shakeout station and the nodular crusher within the sand loop
Material Applications: Chemically bonded moulding and core sand with high nodularity
Product details & Options
- Wear-resistant linings: Bolted breaker plates and manganese steel side sheets
- Adjustable gap width for variable crushing intensity
- Additional wear plates for zones subject to high loads
- Electronic vibration monitoring for process control
- Prepared for integration into higher-level control systems
- Flexible installation options for existing or new plant layouts
- Inspection and maintenance hatches for easy servicing
- Dust extraction ports for connection to central exhaust systems
- Custom coating or surface treatment tailored to the application environment
Fields of Application
Chemically bonded moulding sand, core sand processing, and sand reclamation systems positioned between shakeout and crusher – ideal for processes with increased sand nodules after shakeout and for efficient reuse within moulding material loops.
Equipment Options
Wear-resistant linings
Protection through breaker plates or manganese steel for long service life under abrasive conditions.
Adjustable gap width
Manual adjustment of the crusher opening to suit desired grain sizes.
Additional wear plates
Enhanced protection for highly stressed areas under intensive material loads.
Electronic vibration monitoring
Continuous condition monitoring for preventive maintenance and process reliability.
Interfaces for plant control
Prepared for integration into higher-level PLC or control systems.
Inspection and maintenance hatches
Simplified access for inspection, cleaning, and replacement of components.
Dust extraction ports
Provision for connection to central extraction systems for dust reduction.
Surface treatment and coating
Adaptation to environmental conditions through special coatings.
Flexible installation options
Integration into various plant layouts, e.g., above a nodular crusher.