
Project Overview
In investment casting, shell drying is a vital stage that directly impacts the quality, strength, and accuracy of the final cast components. However, achieving consistent drying is a challenge—especially in regions with fluctuating or high humidity.
Nova Technocast , a leading name in precision castings, faced similar issues in their shell room. The result was shell cracks, extended drying times, and process delays. To overcome these challenges, they partnered with Himalaya Refrigeration Industries, who installed multiple units of the Himalaya ECO DRY HR-DE-4.5 model—engineered specifically for industrial dehumidification.
The Challenge
Nova Technocast’s shell room operations were affected by:
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Humidity fluctuations during seasonal weather changes.
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Extended drying times, especially during monsoon.
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Frequent shell cracking, resulting in higher rejection rates and production delays.
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A need for faster cycle times without compromising on shell integrity or casting quality.
Problem Faced in Shell Drying
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Inconsistent Drying Rates
Natural air-drying caused variations across shell layers—leading to weak spots. -
Shell Damage and Cracking
Stress developed due to non-uniform drying, especially in complex molds. -
Monsoon-Driven Delays
High ambient moisture during rainy seasons drastically slowed shell hardening. -
Increased Rejections and Waste
Cracked or weak shells led to rework, scrap, and productivity loss.
Himalaya’s Solution: ECO DRY Series Dehumidifiers
To address these issues, Himalaya installed multiple units of its high-performance ECO DRY model – HR-DE-4.5 in the shell room of Nova Technocast. Key highlights of the installation include:
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Model: HR-DE-4.5
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Capacity: Optimized for medium to large shell rooms
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Quantity: Multiple units strategically placed for uniform coverage
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Features:
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Digital RH control
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Continuous-duty operation (24×7)
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Compact and durable casing for dusty environments
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Low noise, low maintenance
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Results Achieved
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Shell drying time reduced by 30–40%
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Significant reduction in shell cracking incidents
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Improved bonding and overall shell strength
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Year-round production stability, even during high humidity seasons
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Increased throughput with reduced downtime and scrap
Conclusion
For precision casters like Nova Technocast, tackling humidity-related issues in shell drying is crucial. With the help of Himalaya’s ECO DRY Series Dehumidifiers, they achieved better quality control, faster production cycles, and greater reliability.
If your foundry faces similar drying challenges, it's time to consider Himalaya's Dehumidifdier.
+91 9979 555511
www.himalayaref.com
info@himalayaref.com