Heavy-Duty Plastic Field-Character  Grid Pallet Mold — Product Introduction (Motek Pallet Mold Series)

Product Positioning

Motek introduces dedicated injection molds for heavy-duty Field-character (田字) grid plastic pallets. The Field-character pallet features a bottom reinforcement structure arranged in a "田"-shaped pattern (four rectangular grid zones divided by cross-shaped ribs) paired with a grid-patterned deck. Forklift openings are located between the Field-character intersection nodes, combining four-way forklift entry convenience with high load-bearing rigidity—widely used in heavy-duty warehousing, logistics stacking, and racking storage. Compared with Chuan-character or nine-leg pallet molds, the core challenges of Field-character grid pallet molds lie in balanced filling of the Field-character reinforcement ribs and grid deck, side core-pulling forming of four-way forklift openings, and strength assurance at cross-intersection nodes. Motek configures dedicated solutions around hot runner layout, side core-pulling mechanisms, and composite ejection systems, helping customers achieve stable mass production of heavy-duty Field-character pallets.

Core Specifications

Product Features

Balanced Filling of Field-Character Reinforcement Ribs and Grid Deck.

The bottom of Field-character pallets is divided into four rectangular grid zones by cross-shaped reinforcement ribs. Flow path differences from the center gate to each zone end are significant, and the thin-wall characteristics of grid ribs further increase filling difficulty. Motek adopts a multi-point hot runner gate system, configuring gate quantity and positions according to the four-zone distribution. In industry patent solutions, primary and secondary manifolds cooperate with main and auxiliary injection pipes to inject molding liquid from various positions in the forming cavity, reducing flow paths, improving injection efficiency, and preventing incomplete cavity filling. Mold flow analysis verifies filling completeness at each grid zone and Field-character rib intersections.

Side Core-Pulling Forming of Four-Way Forklift Openings.

Forklift openings of Field-character pallets are located between the Field-character intersection nodes and require side core-pulling components for forming. Referencing industry patent solutions, Motek adopts a matrix core-pulling mechanism: four core-pulling blocks are arranged in a rectangular distribution, with inner ends inserted into the forming cavity and adjacent blocks abutting at their sides. During demolding, four translation drive mechanisms synchronously drive the core-pulling blocks outward to disengage from the forming cavity, achieving rapid core-pulling. This mechanism solves the problem that Field-character pallets cannot be formed in a single shot, simplifying the injection process. Translation drivers can use hydraulic cylinders, pneumatic cylinders, or linear motors, with limit plates and limit slots ensuring core-pulling block movement precision.

Strength Assurance at Cross-Intersection Nodes.

The cross-intersection nodes of Field-character reinforcement ribs are stress concentration areas and high-incidence locations for trapped gas. Motek optimizes fillet transitions and wall thickness gradation at intersections during mold design to avoid stress concentration. Mold flow analysis is used to evaluate filling end positions at nodes, with proper venting inserts arranged to prevent weak points or burning caused by trapped gas. In industry patent solutions, reinforcement rib structures within the Field-character pattern cooperate with the upper template to form reinforcement ribs on the pallet bottom, improving overall pallet strength.

Composite Ejection Mechanism for Improved Demolding Efficiency.

Field-character pallets have complex bottom structures, and single ejection methods can easily cause uneven ejection or product damage. Referencing industry patent solutions, Motek adopts a composite ejection mechanism: multiple ejection mechanisms are fixed on the lower mold plate side walls, with ejection cylinders driving ejection rods whose ends are located in T-slots of the ejection plate, enabling simultaneous ejection at multiple mold positions and effectively improving ejection and demolding efficiency. For force-prone areas at the Field-character base bottom, ejection points are preferentially arranged at reinforcement rib intersections to ensure flat demolding.

Steel Selection and Heat Treatment Processes.

Heavy-duty Field-character grid pallet molds are medium-to-large molds. Motek references industry configurations: P20, 718H, or 2738 for cavity and core, with 1.2344ESR or S136 optional for high-volume requirements. Steels undergo quenching and tempering to improve hardness, followed by nitriding treatment to achieve high surface hardness (above HV850) with minimal deformation at lower temperatures. Cooling systems use optimally designed circulating water circuits, balancing production efficiency with mold life.

Embedded Steel Tubes for Enhanced Rack Load Capacity.

Field-character pallets can have steel tubes inserted into bottom reinforcement ribs after molding to enhance rack load capacity. Motek reserves forming positions for steel tube installation channels in mold design, ensuring smooth insertion without affecting pallet appearance or stacking precision.

Mold Outer Dimensions Reference

The following table lists Field-character pallet mold parameters available from search materials for reference. Actual mold dimensions vary depending on product specifications, cavity count, and cooling system design. Motek provides customized solutions based on customer pallet 3D drawings and injection machine specifications.

Applications

Motek heavy-duty plastic Field-character grid pallet molds are suitable for:

• Field-character grid pallets for heavy-duty warehousing and logistics
• Field-character pallets for racking storage (steel tubes can be embedded for enhanced load capacity)
• Field-character plastic pallets for export transport
• Standard four-way entry Field-character pallets (1200×1000mm, 1100×1100mm, etc.)
• Warehousing pallets for pharmaceutical/food/glass/automotive parts industries

Service Process

Motek — From Field-character grid pallets to Chuan-character flat-top pallets, providing reliable mold solutions for injection molding of logistics and warehousing plastic pallets.