Airline Cup Mould
With over 20 years of experience in R&D and manufacturing of airline cup moulds, cup moulds and HIPS high-speed cup moulds, SINO MOULD specializes in custom moulds for disposable airline cups, drinking cups, advertising cups and thin-wall cups. Multi‑cavity injection mould for cups, compatible with PS, PP, PMMA, and PC. Our company applies Copper Beryllium (Mouldmax) on the top core and cavity edge of cup moulds, achieving excellent cooling effect for high-speed injection. We produce hundreds of sets of cup moulds annually. Combined with our parent company DKM high-speed injection moulding machines, we provide turnkey solutions from mould to complete production line for efficient and stable mass production.
Standard Airline Cup Mould Details
Below are examples of common parameters for airline cup moulds.
| Cavity Steel | P20, 718H, S136, DIN 1.2316 | Upper Core & Cavity Edge Material | Mouldmax beryllium copper alloy (P20, 718H, S136, DIN 1.2316) |
|---|---|---|---|
| Mould Core Steel | P20, 718H, S136, DIN 1.2316 | Top Material | Mouldmax beryllium copper alloy for enhanced cooling on top (P20, 718H, S136, DIN 1.2316) |
| Mould Base Standard / Steel | Standard mould base, 45#, P20, 4Cr13 pre‑hardened steel | Steel for Sliders, Inserts, Lifters | High‑strength tool steel, nitriding / surface hardening, wear‑resistant and smooth |
| Number of Cavities | 1, 2, 4, 8, 16, 32 cavities (customized per requirement) | Hot Runner Type | Valve‑gated hot runner / open hot runner |
| Compatible Injection Machine | DKM high‑speed injection moulding machine series | Raw Material MFI | PS, PP, HIPS, PMMA, PC, typical MFI 5–25 g/10min |
| Ejection Method | Stripper plate + ejector pins | Injection Moulding Process | High‑speed injection, precise temperature control, staged cooling, high‑speed ejection |
| Cycle Time | 6 – 12 seconds | Manufacturing Lead Time | 30 – 50 days |
Technical Analysis of Airline Cup Moulds
Analysis of Uneven Wall Thickness & Eccentricity
- If cooling water flows unevenly in different areas of the core and cavity, it will cause differences in molten plastic flow. Hotter areas have better flow and thicker walls; colder areas have weaker flow and thinner walls. Normal temperature difference alone can cause a tolerance of about 0.05mm in wall thickness.
- The height of the zero-degree interlock in cup moulds is suggested to be 20%–30% of the cup height: around 20% for small cups and about 30% for large cups, ensuring uniform clamping and reducing eccentricity.
- During the machining of core and cavity for cup moulds, high-precision processing equipment must be carefully selected to ensure concentricity and dimensional accuracy, avoiding eccentricity from the source.
Key Quality Points of Airline Cup Moulds
SINO MOULD implements strict quality control for airline cup moulds. From steel selection, structural design, precision machining to mould trial validation, the whole process ensures high precision, stability and long service life.
Airline Cup Mould Structural Optimization Design
- Optimize cooling channels according to cup structure to ensure even temperature distribution and solve uneven wall thickness.
- Adopt Copper Beryllium (Mouldmax) for key cooling areas, greatly improving cooling efficiency in high-speed injection.
- Optimize runner and gate via mould flow analysis for uniform filling, less sink marks and deformation.
Airline Cup Mould Steel Material Selection
- Core and cavity use high-polish, wear-resistant mould steel, with Copper Beryllium alloy at key positions.
- Mould base adopts high-strength rust-proof steel suitable for long-term mass production.
- Hot runner, slides and other parts use high-temperature and wear-resistant materials.
Airline Cup Mould Machining Precision Control
- High-precision CNC machining with strict tolerance control.
- Multi-stage inspection for parallelism, perpendicularity, concentricity and water sealing.
- Mirror polishing on cavity ensures smooth and flawless cup surface.
Airline Cup Mould Assembly & Mould Trial
- Precise assembly of slides and ejection system for smooth operation.
- Focus on wall thickness uniformity, dimension, appearance and deformation during trial.
- Adjust process and mould structure timely to ensure stable high-speed production.
- Our cooling system utilizes conformal cooling channel design, allowing cooling lines to closely follow the product contour and improving cooling efficiency by 20-30% compared to traditional cooling methods. Combined with precise temperature control via mould temperature controllers (±1-2℃ accuracy), this effectively reduces product warpage. Efficient cooling design enables us to achieve target cycle times of 35-60 seconds, significantly enhancing production efficiency.
Airline Cup Mould Validation & Continuous Optimization
- Long-time continuous production test before delivery to simulate real mass production.
- Comprehensively verify reliability of cooling system, hot runner and mechanical movements.
- Continuously optimize mould structure and cooling solution based on field data.
Mould Flow Analysis for Airline Cup Moulds
