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Help CenterHigh Pressure Stainless Steel Forged Scroll Core for Compressors and Expanders
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Welcome to Anping County Boli Hardware Wiremesh Products Factory — a trusted manufacturer established in 1998 with over two decades of experience in precision metal components. Our High Pressure Stainless Steel Forged Scroll Core is designed for demanding compressor and expander applications, delivering exceptional durability, tight tolerances, and reliable performance under extreme conditions. With an annual export value exceeding US$5 million and a global presence across North America, Europe, Asia, and beyond, we are committed to providing high-quality forged scroll cores that meet the rigorous standards of industrial refrigeration, HVAC, and energy recovery systems.
Product Overview
Our forged scroll core is precision machined from high-grade stainless steel to ensure optimal strength, corrosion resistance, and long service life. The forging process eliminates internal voids and refines the grain structure, resulting in a component that withstands high pressure and thermal cycling without deformation. Whether used in scroll compressors for air conditioning or expanders for waste heat recovery, this scroll core delivers consistent efficiency and low leakage.
Key Features & Benefits
- High Pressure Capability: Designed to operate at pressures up to 40 bar (customizable), ensuring reliable performance in demanding systems.
- Stainless Steel Construction: Made from SS304 or SS316 (optional), offering excellent resistance to corrosion, pitting, and chemical attack.
- Forged Precision: The forging process provides superior mechanical properties — higher yield strength, fatigue resistance, and dimensional stability compared to cast alternatives.
- Customizable Geometry: We can produce scroll cores with specific wrap profiles, base thickness, and tip clearance to match your compressor or expander design.
- Surface Treatment Options: Passivation, electropolishing, or PTFE coating are available to further reduce friction and improve wear resistance.
- Consistent Quality: Each scroll core undergoes 100% dimensional inspection and pressure testing to ensure compliance with your specifications.
Technical Specifications
| Parameter | Value |
| Material | Stainless Steel 304 / 316 / Custom |
| Working Pressure | Up to 40 bar (customizable) |
| Temperature Range | -50°C to +250°C |
| Surface Roughness | Ra ≤ 0.8 μm (standard) |
| Dimensional Tolerance | ±0.01 mm on critical dimensions |
| Weight | Customizable (typically 0.5–5 kg) |
| Packaging | Wooden case / Carton / Vacuum packing |
Detailed Product Description
The scroll core is the heart of any scroll compressor or expander. Our forged version outperforms conventional cast scrolls in several key areas. The forging process aligns the grain flow along the contour of the scroll, providing higher strength in the direction of stress. This results in a component that can withstand rapid pressure changes and thermal expansion without cracking. Additionally, the absence of porosity and shrinkage defects eliminates internal leakage paths, improving volumetric efficiency by up to 5% compared to cast scrolls.
Why choose a forged scroll core? In high-pressure applications (e.g., CO₂ compressors, natural gas boosters, or high-temperature heat pumps), the mechanical demands are extreme. Cast scrolls often suffer from premature fatigue failure or leakage due to micro-porosity. Our forged cores are fully dense and heat-treated to achieve a uniform microstructure, giving you a longer service life and lower maintenance costs.
Customization available: We understand that every compressor or expander design is unique. We can adjust the scroll profile, base thickness, tip relief, and even integrate dowel holes or alignment features according to your engineering drawings. Our team works closely with clients to optimize the scroll geometry for maximum efficiency and minimal leakage.
Surface finish options: Standard finish is fine-polished (Ra ≤ 0.8 μm). For applications requiring reduced friction, we offer electropolishing or PTFE impregnation. For corrosive environments, passivation or nickel plating is recommended. All coatings are applied in-house with strict quality control.
Quality Assurance
Every scroll core is manufactured under a stringent quality management system. We perform 100% dimensional inspection using CMM (Coordinate Measuring Machine), and each unit is pressure-tested at 1.5 times the working pressure. Our in-house metallurgical lab conducts hardness tests, microstructure analysis, and corrosion resistance checks to ensure the material meets your requirements.
Applications
- Scroll compressors for HVAC, refrigeration, and heat pumps
- Scroll expanders for waste heat recovery, ORC systems, and turbochargers
- High-pressure gas compressors (CO₂, natural gas, refrigerant)
- Oil-free or semi-hermetic compressor designs
Why Choose Us?
With over 26 years of manufacturing experience, Anping County Boli Hardware Wiremesh Products Factory has served clients across more than 30 countries. Our annual export value of US$5–10 million reflects the trust global partners place in our quality and delivery. We ship from major ports including Tianjin, Qingdao, Shanghai, and Foshan, ensuring fast logistics to any destination. Whether you need a small prototype batch or large-scale production, we offer competitive pricing without compromising quality.
Ready to upgrade your compressor or expander performance? Contact us today with your drawings or specifications. Our engineering team will provide a tailored solution and a prompt quotation. We look forward to building a long-term partnership with you.
Frequently Asked Questions
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Q: What materials are available for the scroll core?
A: We offer stainless steel 304 and 316 as standard options. Other grades like 17-4PH or duplex stainless steel are available upon request, depending on the application requirements. -
Q: What is the typical lead time for a custom order?
A: For standard designs, lead time is 15–20 working days. Custom profiles may require 25–30 days after drawing approval. We can expedite urgent orders with prior negotiation. -
Q: Do you provide samples for testing?
A: Yes, we can produce sample pieces based on your drawings. Sample cost is negotiable, and we will refund the sample fee for bulk orders. -
Q: Can the scroll core be used in oil-free compressors?
A: Absolutely. Our forged scroll cores can be supplied with a low-friction surface treatment (like PTFE coating) to reduce wear without oil lubrication. However, please confirm the operating conditions with our engineers. -
Q: How do you ensure the dimensional accuracy of the scroll profile?
A: We use CNC machining centers with high-precision rotary tables. Each scroll core is inspected with a CMM to verify the profile, base thickness, and tip clearance. Our tolerance is ±0.01 mm on critical features. -
Q: What is the minimum order quantity (MOQ)?
A: MOQ is 100 pieces for standard sizes. For custom sizes, MOQ may vary depending on the complexity. We are flexible for trial orders of 10–50 pieces. -
Q: Do you offer any warranty?
A: We provide a 12-month warranty against manufacturing defects. Any issues arising from improper use or design flaws are not covered, but we will work with you to find a solution. -
Q: Can you also supply other components for compressors?
A: Yes, we produce a range of forged and machined parts, including scroll wraps, valve plates, and bearing housings. Please inquire with your specific requirements.
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