Pallet Crate Mould
SINOMOULD is a professional manufacturer of large‑industrial pallet crate moulds, serving leading enterprises in the global logistics and warehousing industry.
From logistics returnable crates to Euro‑pallet boxes, our large plastic part moulds help customers achieve high‑volume production with lower per‑part cost, thanks to long service life and high production efficiency.
Pallet Crate Mould Specifications
Mould Name | Pallet container mould | Injection System | Multi‑drop valve‑gated hot runner system (effectively eliminates weld lines on large parts) |
Product Dimensions | 1200mm × 1000mm × 150mm (L×W×H) | Ejection System | Combined ejector pin and flat ejector system |
Number of Cavities | 1 cavity (single‑cavity large mould) | Cycle Time | 85 seconds (including packing, cooling, and mould open/close) |
Mould Overall Dimensions | 1950mm × 1650mm × 850mm | Mould Design Life | Over 1 million cycles |
Compatible Injection Machine Tonnage | DKM 2800 Ton (2800T clamping force) | Standard Delivery Time | 85 working days |
Main Mould Steel | 718H (pre‑hardened plastic mould steel, excellent polishability and wear resistance) | Core Features | High‑efficiency 85s cycle, high strength‑to‑weight ratio, long‑life mass production design |
Pallet Crate Mould Quality Essentials
Pallet crate moulds are large and structurally complex, demanding extremely high stability of the injection moulding process window and the rigidity of the mould itself. SINOMOULD focuses on the following key quality points:
- 718H High‑Rigidity Mould Base & Zero‑Deformation Design
For the U‑shaped box of 1200mm span, SINOMOULD uses thickened 718H pre‑hardened steel on the moving and stationary plates, combined with CAE structural stress analysis. By adding back support ribs and thickened clamp slots, the mould deformation during the packing/holding phase is strictly controlled within 0.05mm. This fundamentally eliminates wall thickness variation, flash, and misalignment of pin holes caused by elastic mould deformation.
- Multi‑Point Sequential Hot Runner Weld Line Control
Large pallet crates often have multiple holes and intersecting rib structures. We use Mouldflow analysis to precisely set the opening sequence of the multi‑point valve‑gated hot runner. Through advanced sequential injection technology, the meeting points of multiple melt fronts are pushed to non‑stress and non‑visible areas. This allows the pallet crate to fill gently at low pressure on a 2800‑ton machine, completely eliminating cold‑slag marks and the strength risks associated with weld lines.
- Large‑Part Cooling Efficiency & Shrinkage Control
For thick wall sections, complex conformal cooling and baffe‑type water circuits are designed inside the core and cavity. High‑pressure mould temperature controllers provide dynamic thermal balance control, ensuring a consistent cooling rate across the entire 1200mm length of the crate and controlling overall shrinkage within extremely tight tolerances. This guarantees that finished pallet crates stack smoothly, sit flat on the bottom, and are free from warpage.
- Balanced Dual‑Action Ejection & Forced Demoulding Reliability
Pallet crates are often deep and have multiple undercuts. SINOMOULD uses a composite ejection system combining straight ejectors, angled lifters, and ejector pins. By precisely calculating demoulding forces, rationally positioning ejector elements, and using hydraulic synchronized cylinders to ensure absolutely parallel movement of the ejector plate, we effectively solve problems such as ejector marks, incomplete ejection, and even failure to demould—ensuring smooth continuous production.
Pallet Crate Mould Machining Essentials
Manufacturing a pallet crate mould weighing tens of tons is the ultimate test of large‑equipment machining precision and fitter skills. SINOMOULD’s manufacturing process is as follows:
- Large Gantry & Horizontal CNC Deep‑Hole Drilling
On 1950mm long‑span plates, large CNC gantry milling machines perform integrated rough and finish machining of reference surfaces and cavity slots, ensuring flatness and perpendicularity. Deep‑hole drilling produces long, conformal cooling channels through the entire plate thickness, with smooth inner walls, laying the thermal exchange foundation for the high‑efficiency 85‑second cycle.
- 5‑Axis Corner Cleaning & Precision Electrode EDM
The complex rib network and fine details of the pallet crate are directly milled with 5‑axis high‑speed machining centers. For sharp corners, deep narrow slots, and other areas where tools cannot fully reach, custom graphite electrodes are used for EDM corner cleaning. With orbiting EDM technology, all moulding surfaces blend seamlessly, achieving extremely high surface accuracy and insert interchangeability.
- Large Mould Base Precision Assembly & Red‑Dye Spotting
During the fitter assembly stage, experienced SINOMOULD mould technicians perform manual red‑dye spotting on critical mating surfaces such as parting lines, sliders, and wedge blocks, ensuring contact area exceeds 90%. All guide pins, bushings, and precision tapered lock blocks are calibrated for parallelism using laser interferometers. This precise fit is the direct guarantee that the pallet crate mould will not flash or leak material under 2800‑ton pressure.
- Full‑Condition Dynamic Mould Trial & Turnkey Service
After mould manufacturing is completed, fully automatic continuous trial runs using actual raw material are conducted on a 2800‑ton injection machine—either in‑house or at the customer’s site. Key tests include hydraulic ejection balance, sequential valve timing, and 85‑second cycle stability. We provide a complete process parameter package and turnkey service, ensuring that the pallet crate mould is ready for immediate, unattended, high‑efficiency production upon arrival at the customer’s factory.
Mould Flow Analysis for Pallet Crate Mould
Pallet Crate Mould Testing Video
If you need a mould design proposal and detailed quotation for your specific crate dimensions, please feel free to contact us.