Square Table Mold with Cross-Leg Base — Plastic Injection Mold Product Introduction (Motek Furniture Mold Series)

Product Positioning

Motek introduces dedicated injection molds for square plastic tables supported by cross-leg bases. This product type replaces traditional four-corner independent legs with a cross-intersecting leg structure, offering a cleaner visual appearance and more uniform load distribution—commonly used in dining tables, conference tables, and outdoor leisure tables. The core challenges in mold development lie in forming the connection structure between the cross-leg base and the square tabletop, warpage control of the large square flat surface, and demolding mechanism design for the cross-intersection areas. Motek focuses on connection structure forming, cooling channel layout, and demolding system design, helping customers achieve stable mass production of cross-leg square tables.

Core Specifications

Product Features

Integral Forming of Cross-Leg Connection Structures.

The connection between the cross-leg base and the square tabletop is the critical load-bearing area. Motek forms cross-leg mounting positions, connection seats, and locating features through slider and insert systems, ensuring good perpendicularity between legs and tabletop after assembly with balanced four-directional force distribution. For solutions where legs and tabletop are integrally injection molded, the mold requires demolding mechanisms designed for the undercut structures at cross-intersection points to ensure smooth demolding at intersection nodes; for split-assembly solutions, the focus is on controlling dimensional accuracy of connection seats and consistency of mounting hole positions.

Warpage Control for Large Square Flat Surfaces.

Square tabletops exhibit differing deformation amounts along the four edges versus the diagonal direction during shrinkage, prone to diagonal warping or edge undulation. Motek evaluates shrinkage distribution across the square flat surface through mold flow analysis, applies pre-deformation compensation to the cavity, and adopts cooling channels symmetrically arranged along all four edges to equalize cooling rates across tabletop regions, controlling flatness from the source. Regular reinforcement ribs can be arranged on the tabletop underside to enhance rigidity, with rib thickness controlled not to exceed tabletop wall thickness to avoid sink marks on the appearance surface.

Demolding Mechanism Design for Cross-Intersection Areas.

The intersection nodes of cross-leg structures often form undercuts or enclosed areas, requiring sliders or inserts to separate from the product before demolding. Motek adopts a slider and ejection linkage demolding solution: during mold opening, sliders and positioning inserts at cross-intersection areas are first moved away to release the product from constraints, then the ejection action is performed, preventing the product from being damaged or deformed during demolding.

Balanced Ejection to Protect Tabletop Appearance.

Square tabletops have large surfaces, and uneven ejection force can cause stress whitening or localized deformation. Motek adopts a multi-point balanced ejector pin layout, with ejection points preferentially located at reinforcement ribs, connection seats, and other non-appearance areas, ensuring no visible ejector marks on the tabletop appearance surface during demolding.

Weathering Considerations Under Outdoor Use Conditions.

Outdoor cross-leg square tables are exposed long-term to UV and temperature fluctuations. During the mold design phase, the UV resistance grade of the plastic base material must be confirmed with the customer, and the shrinkage rate difference between modified materials and standard PP must be considered in cavity dimension calculations. Wall thickness can be appropriately increased at impact-prone areas such as cross-leg bottoms and tabletop edges to enhance overall durability.

Applications

Motek cross-leg base square table injection molds are suitable for:

• Cross-leg base square dining tables/conference tables
• Square tabletops with integrally injection molded or split-assembly cross-legs
• Outdoor leisure square tables (cross-leg structure)
• Cross-leg square tables with center umbrella holes
• Square tables for commercial food stalls/courtyards

Service Process

Motek — From four-corner independent legs to cross-intersecting bases, providing reliable mold solutions for injection molding and stable mass production of square tables.