Description

High-Speed Plastic Spork Mold (Multi-Cavity Disposable Cutlery Tooling)

Disposable plastic sporks (combination of spoon and fork) demand ultra-fast production, minimum wall thickness, and perfectly smooth, flash-free edges for food safety.

At Mingyu Mold, we specialize in engineering high-precision, high-efficiency plastic spork molds designed for maximum daily output. Whether you are using PS, PP, or eco-friendly biodegradable PLA materials, our multi-cavity tooling ensures low unit costs and non-stop manufacturing reliability.

Technical Indicator	Spork Mold Specification
Mold Cavity Options	16, 24, 32, 48, or 64 Cavities
Cycle Time	4.5s – 8s (Optimized for High-Speed Machines)
Core & Cavity Steel	S136 Stainless Steel / H13 / German 1.2344 (Vacuum Hardened HRC 48-52)
Cooling System	Beryllium Copper inserts around cavity tips + optimized conformal cooling water channels
Hot Runner System	Full Hot Runner with Pin-Point Gate / Valve Gate (Zero waste, no manual trimming)
Suitable Plastic Materials	Food-Grade PS, PP, and Biodegradable PLA / CPLA
Suggested Injection Machine	High-Speed Injection Molding Machine (200-Ton to 400-Ton)
Guaranteed Mold Life	3,000,000 to 5,000,000 shots

Why Choose Mingyu Mold for Plastic Spork Tooling?

1. Ultra-Fast Cycle Time (4.5s – 8s)

Time is profit in the disposable cutlery industry. Our spork molds feature strategically positioned Beryllium Copper (BeCu) inserts around the cavity tips and tines, drastically accelerating heat dissipation and reducing your injection cycle time by up to 25%.

2. Premium Corrosion-Resistant Steel (S136 / H13)

To handle continuous high-speed production and corrosive plastic gases (especially with PS or bio-plastics like PLA), we utilize mirror-polished S136 stainless steel or vacuum-hardened H13 steel for cores and cavities. This ensures rust-free operation, superior part surface shine, and an extended mold life exceeding 3 million shots.

3. Flash-Free Edges & Automated Demolding

Safety and mouth-feel are essential for cutlery. Our precision CNC machining tolerances (±0.005mm) guarantee zero flash along the parting line. Combined with an optimized air-assist stripper plate ejection system, sporks fall off automatically onto conveyer belts or robotic manipulators without scratching.

Technical FAQ (Frequently Asked Questions)

Q: What injection molding machine is required for a 32-cavity plastic spork mold?

A: A 32-cavity spork mold typically pairs best with a 250-Ton to 350-Ton high-speed injection molding machine equipped with an accumulator system. The machine must feature sufficient tie-bar clearance (minimum 650mm × 650mm) and high injection speed (up to 300mm/s or higher) to fill thin-wall cavities instantly.

Q: Can one spork mold run both PS, PP, and PLA materials?

A: While PS, PP, and PLA can be molded, each plastic resin has a different volumetric shrinkage rate (e.g., PS ~0.5%, PP ~1.5%-2.0%). To achieve exact dimensional accuracy and avoid warping, we strongly recommend customizing the cavity dimensions according to your primary resin selection.

Q: How do you prevent short-shots on thin-wall spork tines?

A: Spork tines are prone to air traps and short-shots. We solve this through advanced Moldflow analysis, balanced pin-point hot runner gating, and specialized micro-venting slots along the tine tips, ensuring 100% complete melt flow at high speeds.

Get a Custom Spork Mold Quote Within 24 Hours

Planning to start a disposable cutlery production line or upgrade your current tooling output? Send your 3D spork drawing (STEP/IGES) or sample requirements directly to our engineering team at sales@mingyumold.com. We will provide a comprehensive DFM analysis, mold layout, and competitive quote.