Beach Chair Moulds
With over 20 years of experience in plastic beach chair mould development, SINO MOULD specializes in manufacturing moulds for all critical plastic beach chair components, including plastic parts such as the seat, chair legs, folding hinges, buckles, non-slip foot pads, and armrests. SINO MOULD is good at designing specialized mould solutions tailored to the distinct plastic material and performance requirements of each component. We invented a 4-cavity fully hot runner system for plastic beach chair moulds, solving the industry pain points of difficult demoulding of beach chair folding structures and high requirements for outdoor weather resistance, and becoming the preferred choice for global high-end plastic beach chair mould manufacturers. Combined with our parent company DKM’s outdoor-specific all-electric injection moulding machines, we provide turnkey integrated plastic beach chair production line solutions, enabling efficient manufacturing from moulds to complete production lines.
Standard Beach Chair Mould Details
Below are examples of the most common parameters for plastic beach chair moulds.
| Beach Chair Mould Cavity Steel | P20, 718H, 2344 | Recommended Injection Machine | DKM Servo Series Injection Moulding Machine |
|---|---|---|---|
| Beach Chair Mould Core Steel | P20, 718H, 2344 | Plastic Material & MFI | UV-resistant PP, HDPE, typical MFI 8–22 g/10 min |
| Mould Base Standard / Steel | 4Cr13 Pre-hardened Stainless Steel | Ejection System | Stripper Plate Ejection, Angle Ejection (for folding models only) |
| Sliders, Inserts, Lifters Steel | High-strength tool steel, treated with nitriding or surface hardening, plus an additional anti-corrosion and wear-resistant coating for the folding version, ensures smooth slider movement, wear resistance, and aging resistance. | Injection Process | High-speed injection, short cycle time, precise temperature control, independent temperature control for each cavity, and enhanced moulding control of UV-resistant raw materials |
| Number of Cavities | 2-8 cavities, determined by customer production capacity, maximum 12 cavities | Injection Cycle Time | 25–40 seconds |
| Hot Runner System | Full hot runner, point gate to submarine gate (optional) | Mould Manufacturing Lead Time | 50–80 days |
Key Quality Points of Beach Chair Moulds
SINOMOULD implements rigorous quality management protocols for plastic beach chair moulds. From steel selection to trial mould validation, every step ensures high precision, stability, and extended mould lifespan, adapting to the outdoor use environment of high temperature, high humidity, and ultraviolet radiation, and ensuring product weather resistance and structural strength.
Standardized Design
- Based on the structural characteristics of the plastic beach chair components (seat, chair legs, folding hinges, buckles, armrests), the mould structure and runner layout are optimized. Reinforcement design is adopted for folding joints and load-bearing parts to avoid stress concentration during outdoor use. Utilizes mould flow analysis software to simulate injection processes, ensuring balanced multi-cavity injection and uniform plastic distribution, and improving product load-bearing performance.
- Patented full hot runner design enhances temperature uniformity, reducing deformation and porosity risks, adapting to the moulding needs of UV-resistant plastic raw materials, and ensuring that the product surface is free of defects and meets weather resistance standards.
Steel Material Selection
- Core/Cavity: DIN 1.2316 or S136—highly corrosion-resistant and wear-resistant steel. High-precision polishing ensures smooth beach chair surfaces, while improving the corrosion resistance of the mould to meet the needs of outdoor product moulds.
- Mould Base: 4Cr13 rust-resistant mould base steel offers good strength and toughness, corrosion resistance, aging resistance, long service life, low maintenance costs, and is suitable for the structural needs of large beach chair moulds.
- Hot Runner Components: Constructed from corrosion-resistant, high-temperature-resistant, and aging-resistant materials to ensure long-term reliable hot runner operation and adapt to the long-term use needs of outdoor product moulds.
Machining Precision Control
- CNC precision machining with critical dimensional tolerances controlled within ±0.01 mm, especially for the matching parts such as folding hinges and buckles, the dimensional accuracy is strictly controlled to ensure smooth folding and meeting load-bearing standards.
- Multi-stage inspection: Parallelism, perpendicularity, hole positioning, and cavity dimensions verified through multiple inspection procedures, focusing on detecting the precision of folding structures and load-bearing parts to avoid products being unable to be used normally due to dimensional deviations.
- Critical areas undergo mirror polishing to guarantee smooth, clean beach chair forming surfaces, free of scratches and sink marks, improve the appearance texture of the product, and enhance surface UV resistance.
Assembly and Mould Trial
- Precision assembly of critical components like slides, inserts, and angle lifters, especially the hinge and buckle mould components of folding models, which are assembled with precise positioning to ensure smooth closure, stable load-bearing, no jamming, and no looseness.
- During trial moulding, scientifically optimized injection moulding processes are applied to accurately identify even minor issues—such as warpage, sink marks, voids, or dimensional deviations—and make timely, precise adjustments, ensuring stable dimensions, consistent appearance, reliable load-bearing, and qualified weather resistance performance.
Validation and Continuous Optimization
To guarantee high reliability post-delivery, we conduct extended stability testing before shipment—typically no less than 8 hours—simulating the actual production rhythm and high-intensity operations of outdoor products, and adding weather resistance simulation tests to ensure long-term stable operation of the mould and that the product is suitable for outdoor use environments. This process validates not only dimensional accuracy and injection consistency but also assesses the overall stability of the mould’s hot runner system, cooling system, and mechanical actions.
Mould Flow Analysis for Beach Chair Moulds
Using Mouldflow analysis software, the injection process is simulated to optimize cavity structure, runner layout, and temperature control. Aiming at the moulding characteristics of UV-resistant plastic raw materials, it ensures balanced multi-cavity filling, uniform plastic distribution, and reduced risk of air traps or warpage for precision plastic beach chair moulds, while improving product load-bearing performance and weather resistance.
Beach Chair Mould Testing Video
Video demonstrating mould performance and stability under high-speed injection conditions, showing the precision of folding structure movement and product load-bearing performance.