MoldBench: Mold & Die Calc

Kadir Tolaz

Contains adsIn-app purchases

About this app

MoldBench is an engineering calculator for mold makers, mold and tool designers, and manufacturing engineers. It combines 45 calculations for injection molding, sheet metal, casting, and general engineering with STEP-based mold set analysis and a 3D and drawing viewer. Everything runs on your device, even without a connection.

Mold set analysis from a STEP file
Open the STEP file of a plastic part. MoldBench reads its dimensions and projected area; you enter the material, cavity count, cavity pressure, and production volume. The app then suggests:
• Mold set dimensions and a plate list with size, quantity, and weight per plate
• Stock sizes with machining allowance
• Total steel weight with scrap allowance, grouped as an order list
• Clamping force and projected area

45 calculations in four areas
• Plastic injection (11): clamping force, cavity count, cooling time, runner and gate size, shrinkage, flow ratio, injection pressure, ejector pin, venting, cycle time, Reynolds number
• Sheet metal and press (9): blanking force, die clearance, deep drawing, bending force, springback, press tonnage, strip layout, progressive die, thinning analysis
• Casting (6): solidification time, riser sizing, gating system, shrinkage allowance, draft angle, Niyama criterion
• General engineering (19): IT tolerances and fits (ISO 286), hardness conversion, bolt torque, bearing life (L10), column buckling, fatigue check, springs (helical, disc, and nitrogen gas), thermal expansion, mold steel selection, unit converter, and more
Calculation screens show the formula behind the result, and many include short field notes from shop practice.

3D and drawing viewer
Open STEP files in 3D with exploded, section, and wireframe views; see volume, surface area, and estimated weight. DWG and DXF drawings open in 2D.

Material library and reports
40 materials (steels, aluminum and copper alloys, plastics) with mechanical, physical, and thermal properties. Save calculations to projects and export a PDF report for a job file.

Cost and quote
Send a plastic mold set to Cost & Quote and its steel weights come with it. Add labor and profit as a percentage or amount; VAT comes last. Keep your own price list and company details, then create a customer quote PDF (labor and profit hidden) and an internal report PDF.

Made for the shop floor
• No account, no sign-up, no uploads: your files and results stay on your device
• Turkish and English interface
• Metric (SI) or US inch units (in, psi, °F, US tons) in all 45 calculations, plus a unit converter
• Back up all your projects to a single .mbench file and move them to another device

Without Pro and with Pro
Without Pro, you get 11 calculations (at least two in each area), the full material library, history, projects, and PDF reports for those calculations. You can open 2 CAD files in total and create 2 quote or internal report PDFs. Locked calculations still show their inputs and formula.
Pro is a one-time in-app purchase, not a subscription. It unlocks all 45 calculations, unlimited CAD files, and PDF reports with every calculation and without the "Calculated with MoldBench" footer. Pro also makes quote PDFs unlimited and removes ads.

Ads
Without Pro, non-personalized banner ads appear on list screens. Calculation results, CAD screens, and PDF reports never show ads.

About the results
MoldBench is a reference and preliminary assessment tool. Results depend on your inputs and on simplified models; verify them before production. It does not replace expert review, testing, standards compliance checks, or simulation.

Built by mold engineers who work in the field. Questions and feedback: [e-mail]

What’s new

First release of MoldBench:
• 45 calculations for injection molding, sheet metal, casting, and general engineering
• Plastic mold set from a STEP file: plate list, sizes, and weights
• Cost & Quote: price list, customer quote and internal report PDFs
• 3D STEP and 2D DWG/DXF viewer
• SI or US inch units in every calculation
• 40-material library, projects, PDF reports, .mbench backup
Questions or ideas? [e-mail]