Plastic Injection Nine-Leg Flat-Top Pallet Mold — Product Introduction (Motek Pallet Mold Series)
Plastic Injection Nine-Leg Flat-Top Pallet Mold — Product Introduction (Motek Pallet Mold Series)
Product Positioning
Motek introduces dedicated injection molds for nine-leg single-face flat-top plastic pallets. The nine-leg pallet features a flat top deck supported by nine legs arranged in a rectangular array underneath, combining stacking stability with four-way forklift entry convenience—widely used in warehousing, logistics, racking, and export transport. Compared with Chuan-character or double-face pallet molds, the core challenges of nine-leg pallet molds lie in balanced filling and demolding of the nine support legs, warpage control of the flat deck, and strength assurance at the leg-to-deck transition areas. Motek configures dedicated solutions around hot runner layout, cooling systems, and demolding mechanisms, helping customers achieve stable mass production of nine-leg pallets.
Core Specifications
| Item | Specification |
|---|---|
| Applicable Plastics | HDPE / PP (high-rigidity grades; PP+GF optional for enhanced load capacity) |
| Mold Material | P20 / 718H / 2738 (cavity and core); 1.2344ESR optional for high-volume production |
| Number of Cavities | 1×1 (single cavity for large pallets) |
| Mold Life | 500,000–1,000,000 shots |
| Cycle Time | 40–90 seconds (depending on pallet size and cooling design; small nine-leg pallets can reference the 40-second range) |
| Injection Machine | 800T–2250T (depending on pallet size; large nine-leg pallets reference 2250T) |
| Runner System | Hot runner (multi-point pin gates, balanced filling of nine-leg areas) |
| Ejection Method | Ejector plate / ejector pins with hydraulic ejection |
Product Features
Balanced Filling Control for Nine-Leg Areas.
The nine support legs are distributed in a rectangular array from the deck center, creating significant flow path differences from the center gate to each leg—prone to short shots or uneven density at remote legs. Motek adopts a multi-point pin gate hot runner system, configuring gate quantity and positions according to leg distribution to ensure balanced melt delivery to each support leg. Mold flow analysis verifies filling end positions at each leg, preventing material shortage or over-packing.
Warpage Control for the Flat Deck.
The nine-leg pallet deck is a large flat surface where uneven cooling can easily cause warpage, affecting stacking stability and forklift operation. Motek designs zoned cooling circuits covering the deck area and leg inserts separately, equalizing cooling rates between thick-wall legs and thin-wall deck. Beryllium copper inserts can be embedded in deep leg cavity areas to accelerate heat dissipation.
Strength Assurance at Leg-to-Deck Transition Areas.
The connections between the nine support legs and the deck are critical load-bearing nodes. Motek optimizes fillet transitions and wall thickness gradation in these areas to avoid stress concentration. Mold flow analysis evaluates filling completeness at leg roots, preventing weak points caused by trapped gas.
Interchangeable Inserts for Flat/Grid Pattern Switching.
Referencing industry patent solutions, Motek can adopt a removable nine-leg forming insert design: switching between flat and grid patterns by replacing inserts without replacing the entire mold, reducing mold investment for multi-style production.
Demolding Mechanism Optimized for Deep Leg Structures.
The support legs are deep cavity structures prone to scratching from vacuum adhesion during demolding. Motek adopts an ejector plate with hydraulic ejection solution, ensuring ejection force is evenly distributed across the deck area. For deep leg areas, air-blow assistance can be coordinated to release vacuum adhesion.
Mold Steel and Heat Treatment Processes.
Motek references mature industry configurations: P20 or 718H (HRC31–33) for cavity and core, 2316 or 718H for sliders and inserts, and SKD standard components for guide pins and guide bushings. Steels undergo quenching and tempering, vacuum quenching, and multiple tempering processes to ensure uniform hardness and sufficient toughness.
Mold Outer Dimensions Reference
| Product Specification / Notes | Mold Outer Dimensions (mm) | Applicable Injection Machine | Source Type |
|---|---|---|---|
| Large nine-leg grid pallet | 1900×1650×1284 | 2250T | Mold maker |
| Nine-leg pallet (730×630×145mm) | 1000×950×400 | 800T | Mold maker |
Applications
Motek plastic injection nine-leg flat-top pallet molds are suitable for:
- Nine-leg single-face flat-top pallets for warehousing and logistics
- Nine-leg pallets for racking storage (rack load capacity evaluation required)
- Nine-leg plastic pallets for export transport
- Nine-leg pallet series with switchable flat/grid patterns
- Standard-size nine-leg pallets (1200×1000mm, 1200×800mm, etc.)
Service Process
After the customer provides 3D product drawings, load requirements (dynamic/static), and target output, Motek completes mold flow analysis (including nine-leg area filling evaluation, deck warpage prediction, and cooling optimization) and mold structure confirmation; cavity steel and hot runner systems are procured according to agreed specifications; progress and key milestones are regularly reported during processing. During trial molding, emphasis is placed on verifying nine-leg filling completeness, deck flatness, demolding smoothness, and load-bearing performance, with samples and inspection reports provided. Before shipment, molds undergo anti-rust treatment and action testing, with water circuit diagrams, hot runner wiring diagrams, consumable parts lists, and maintenance instructions provided. Technical support is available during the warranty period, with lifetime maintenance consultation.
Motek — From nine-leg flat-top pallets to grid Chuan-character pallets, providing reliable mold solutions for injection molding of logistics and warehousing plastic pallets.
