Recently, our company successfully completed a cryogenic deburring service for a batch of irregularly shaped ethylene propylene diene monomer (EPDM) rubber seals for a client. The customer required the removal of product flash while ensuring deburring precision met industry high standards. Leveraging the advanced NS-120T cryogenic deburring machine and mature process technology, we efficiently achieved the task, with post-deburring flash precision controlled within 0.05mm, exceeding customer expectations.
Project Background: High-Precision Cryogenic Deburring Requirements
The EPDM seals had complex shapes, with flash thickness ranging from 0.1-0.2mm. Traditional manual or mechanical deburring methods struggled to ensure consistency and risked damaging the products. The customer opted for cryogenic deburring (low-temperature blast deflashing) to efficiently remove flash while maintaining dimensional stability and surface finish.
Key Advantages of the NS-120T Cryogenic Deburring Machine
The NS-120T cryogenic deburring machine used in this project offers the following industry-leading features:
✅ Ultra-Low Temperature Freezing: Liquid nitrogen cooling, capable of reaching -130°C, embrittles rubber flash for easy removal.
✅ Large Processing Capacity: 120L working chamber allows batch processing, improving efficiency.
✅ High-Precision Blasting: Equipped with a φ350mm aluminum alloy blast wheel and adjustable speed (2000-4000 RPM) for precise deburring control.
✅ Smart Operation: 10-inch touchscreen enables visual parameter adjustment for ease of use and stability.
Process Flow & Optimization Plan
-
Pre-Treatment Evaluation
-
Weighed and analyzed flash distribution on EPDM seals to ensure proper loading.
-
Adjusted blasting parameters based on rubber hardness (Shore A 40-90) to prevent deformation.
-
-
Critical Cryogenic Deburring Parameters
-
Temperature Setting: -100°C to -120°C (optimal embrittlement range for EPDM).
-
Blasting Time: 10 minutes (checked in stages to avoid over-processing).
-
Blasting Media: Ceramic balls (φ1-3mm) ensured balanced flash removal and surface protection.
-
-
Post-Processing & Quality Inspection
-
Post-deburring inspection using optical measuring instruments confirmed flash ≤0.05mm.
-
Verified no scratches or deformations, meeting customer specifications.
-
Customer Benefits: Enhanced Efficiency & Precision
-
3x Faster Deflashing compared to manual deburring, significantly reducing processing time.
-
Yield Rate ≥99%, with no product damage and excellent dimensional stability.
-
Suitable for Complex Shapes, including irregular seals and micro-holes.
About Us
STMC specializes in cryogenic deflashing services for rubber/plastic products, utilizing high-end cryogenic deburring equipment. Our services cover automotive seals, medical silicone, electronic rubber components, and more. We provide one-stop contract manufacturing & process optimization to help customers reduce costs and improve efficiency.
Contact Us for Collaboration!
Post time: Apr-22-2025