Efficient Mixing Sand Mixer Machine for Foundry Applications

• Customization: Available
• After-sales Service: Online Support
• Warranty: 1 Year
• Type: Lost Mold Casting Production Line
• Shotcrete Type: Dry
• Machining Process: Brick Production Line
• Structure: Rotor Type
• Productivity: 150m²/h
• Feeding Height: 1380mm
• Vibrating Amplitude: 1.4mm
• Certification: ISO9001: 2000, CE
• Condition: New
• Color: Customized
• Capacity: 40-60mould/Hour
• Casting Sand Mixer: Mixing Green Sand
• After-Sales Service Provided: Free Spare Parts
• Usage: Foundry Castings Production
• Casting Plant: Green Sand Casting Line
• Technology: Green Sand Casting Technology
• Transport Package: Wood
• Origin: China

Product Description

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CRUCIAL PROCEDURAL STEPS ARE ELABORATED BELOW:
1. Selection of Material for the Pattern
This step holds paramount importance in the realm of lost foam casting. The specific materials are meticulously chosen in accordance with the casting material in use. For the production of aluminum die castings, expandable polystyrene (EPS) with pentane as a blowing agent is preferred. On the other hand, when producing cast iron and steel parts, a copolymer blend of EPS and EPMMA is utilized to suit the material's distinct requirements.

2. Pre-Expansion Process
Thanks to the inclusion of pentane, which serves as a dynamic blowing agent, polystyrene becomes expandable. Below is an example of a bead pre-expanded using a fluid bed dryer to achieve optimal expansion.
3. Molding Phase
In this phase, the pre-expanded EPS beads are propelled into a metallic permanent mold via a fill gun, utilizing compressed air. Inside the mold, the beads bond together as they are heated, resulting in the formation of the desired pattern geometry. Discover more details of the molding procedure below.
4. Assembly of Pattern Sections and Mounting on Gating Systems
Given that complex pattern geometries are segmented into simpler sections, these require assembly into a complete pattern post-foaming and drying processes. Subsequently, the patterns are mounted onto a single gating system to create what is known as a cluster.
5. Cluster Coating
Through a dipping process, the mounted clusters receive a robust coating of water-based refractory material, achieving an approximate thickness of 2mm for enhanced durability.
6. Mold Filling Process: The coated cluster is carefully positioned in a flask, with quartz sand being meticulously filled via a sand raining feeder, followed by compaction on a vibration table. Upon completion, the cluster is entirely encased within the quartz sand, leaving only the sprue exposed.
7. Casting Operation
A downsprue is strategically placed over the EPS sprue, through which molten metal is skillfully poured. The metal seamlessly travels into the gating system of the foam pattern, decomposing the EPS cluster and perfectly filling the mold cavity, capturing every intricate detail. Explore the decomposition process further below.
8. Demolding Process
Once the molten metal solidifies, the castings are formed and promptly conveyed to the subsequent step for comprehensive cleaning and refinement.
9. Sand Processing Department
Upon demolding, the used sand is efficiently transported to the processing system for recycling, ensuring sustainable and environmentally-friendly operations..

Product Parameters

Model	GZS16-30	GZS20-75	GZS22-75	GZS22-90	GZS25-110	GZS25-132	GZS29-200
Product name	High efficiency sand mixer	High efficiency sand mixer	High efficiency sand mixer	High efficiency sand mixer	High efficiency sand mixer	High efficiency sand mixer	High efficiency sand mixer
Disc diameter(mm)	φ1600	φ2000	φ2240	φ2240	φ2500	φ2500	φ2850
Productivity(t/h)	15-20	25-32	30-35	35-40	40-45	50-60	60-80
Main motor power(kw)	30	75	75	90	110	132	200
Rotor motor power(kw	2×15	2×22	2×30	2×37	2×45	2×55	2×55
Spindle speed(r/min)	34	31.72	27.32	27.32	27.3	27.32	25.4
Rotor speed(r/min)	980	980	975	975	950	950