STAVAX (AISI 420) Core Inserts & Custom Mold Sliders: Precision Engineered for Zero-Defect Molding

Why STAVAX Components by Senlan Precision?

Solving the "Hidden Costs" of Precision Molding

For Western mold buyers, the true cost of a component isn't the invoice price—it’s the cost of production downtime and scrap rates. At Senlan Precision, we manufacture STAVAX (AISI 420 ESR) Core Inserts and Sliders with a focus on Total Life-Cycle Reliability.

By utilizing Electro-Slag Refining (ESR) grade stainless steel, we ensure your medical or cosmetic molds achieve a Grade A1 Mirror Finish while remaining immune to corrosion in high-humidity cleanroom environments.

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Addressing Your 3 Critical Pain Points

1. Eliminating Dimensional Drift

• The Issue: Batch-to-batch inconsistency leads to flash and poor parting line shut-off.

• Our Solution: We maintain a strict ±0.002mm tolerance using MAKINO high-speed CNC and Hardinge centers. Every Custom Mold Slider undergoes a rigorous fit-check to ensure smooth side-action movement without galling.

2. Material Integrity & Traceability

• The Issue: Material fatigue or cracking due to low-grade steel or improper heat treatment.

• Our Solution: Full Material Traceability. We provide Vacuum Heat Treatment reports and hardness certificates (typically 48-54 HRC) for every batch, ensuring the microstructure is optimized for long-term dimensional stability.

3. Reducing Secondary Processing

• The Issue: Components that require "hand-fitting" upon arrival in Europe or the US.

• Our Solution: Our Built-to-Print workflow guarantees 100% interchangeability with HASCO/DME/MISUMI standards. Your inserts will be "Plug & Play," saving you expensive toolroom labor hours.

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Technical Specifications & Material Science

Parameter	Technical Excellence	Buyer Benefit
Material	Genuine STAVAX ESR (AISI 420)	High Purity = No Pits in Mirror Polishing
Hardness	48 - 54 HRC (Vacuum Quenched)	Wear Resistance + Toughness Balance
Precision	±0.002mm Tolerance Control	Zero-Flash Parting Lines
Surface	Ra 0.05 (Mirror) / SPI-A1	Reduced Friction & Easy Part Ejection
Machining	CNC Milling, EDM, Jig Grinding	Complex Geometry Accuracy

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Core Application & Industry Expertise

Our STAVAX inserts are specifically engineered for:

• Medical Grade Components: Syringes, IV connectors, and labware (ISO 13485 compliant environments).

• Cosmetic Packaging: High-gloss closures and thick-walled premium containers.

• Optical & Electronics: Clear lenses and micro-connectors where Surface Integrity is paramount.

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The "Supplier Features" You Value Most

As an experienced OEM partner, we align with the 5 key traits looked for by Western CPOs:

1. DFM Expertise: We don't just follow drawings; we review your design for potential manufacturing risks (like stress risers or cooling efficiency).

2. Full Documentation: Every shipment includes a CMM Dimensional Report and Material Certification.

3. Project Transparency: Real-time updates on your production status—no more "black box" sourcing.

4. Consistency: Our ISO-based quality system ensures the 1000th part is identical to the 1st.

5. Technical Support: Direct communication with English-speaking engineers who understand mold mechanics.

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FAQ – Proactive Solutions

Q: How do you handle "Galling" in STAVAX sliders?

A: We ensure a specific hardness differential between moving parts and apply advanced surface finishes (like DLC coating upon request) to minimize friction and prevent seizing in high-cycle molds.

Q: Can you guarantee "Flash-Free" shut-off surfaces?

A: Yes. By using precision grinding and EDM, we achieve the H7/g6 fit levels required for high-pressure injection molding.

Q: Do you provide "Stress Relief" for complex inserts?

A: Absolutely. All STAVAX components undergo multiple stress-relief cycles after rough machining to prevent warping during final precision grinding.

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Request a Technical Quote & DFM Review

Don't risk your mold’s performance with unverified suppliers. Send your STEP/DWG files to the Senlan Precision engineering team. We provide a Design for Manufacturing (DFM) feedback and a transparent quote within 24 hours.