Download RotoSpider Trial
The current English package is RotoSpider Trial V0.5. It is a Windows 64-bit ZIP package: unzip it and run RotoSpider_V0.5.exe. No installer is required.
What RotoSpider Helps Answer
RotoSpider is for rotational molding layout planning. A production scheduler can select a machine arm, enter requested mold quantities, and check whether the mold combination can fit within the selected spider and rotation envelope.
The solver tries to place as many requested molds as possible while keeping the 3D center of gravity close to the rotation axis. The result can be reviewed in upper/lower 2D spider panes and in a 3D view.
Layout Workflow
Select an arm
Choose a straight arm or offset arm. The trial data includes sample spider diameters, rotation envelopes, dead-height values, and riser options.
Set mold quantities
Enter the requested Need quantity for each mold. The app recalculates the layout and shows how many molds are actually loaded.
Review and edit
Inspect the layout in 2D and 3D, drag molds for manual adjustment, then save the result as a reloadable Excel workbook.
Settings And Master Data
The trial package includes sample data under data/trial. The Mold Data page lets you review and edit mold dimensions and weight with a 3D preview. The Spider/Arm Data page maintains straight-arm and offset-arm geometry.
Excel editing remains available for batch updates, but the in-app data pages are better for understanding field meaning and making targeted changes.
Trial Scope
The English trial is for functional demonstration. Its molds, machines, rule settings, and spider visual overlays are representative sample data, not certified production data for a specific factory.
Production use should be customized to the client's real machine geometry, mold installation method, riser options, reporting needs, and operating rules.
Screenshots
Other Zhihuo Tools
For container loading rather than rotational molding, see the SmartPacker editions: T1 for single-SKU loading, T3 for mixed cartons, and U3 for upright palletized or unit-load cargo.
Questions and comments: zhzx@zhihuo.com.
Related Tools
Use RotoSpider for rotomolding mold layout. Use SmartPacker when the job is container loading.