Industrial equipment spec diagrams for B2B buyers

Upload a photo of a machine, valve, or part and mark exact dimensions, port positions, and technical specs. Procurement engineers get the numbers they need to source — without a CAD file.

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What is an industrial spec diagram?

An industrial spec diagram is a labeled product image marking a machine or part’s exact dimensions, interface and port positions, and key technical specs, so procurement and engineers can confirm fit and compatibility before requesting a quote. SizeMarker keeps every measurement accurate with deterministic geometry — it marks real sizes, and never crosses into CAD or engineering drafting.

Exact dimensions and mounting spacing

Mark overall size, bolt-hole spacing, and clearance. Deterministic geometry locks in accuracy where an AI guess would fail an engineer.

Port, interface, and rating callouts

Label inlet/outlet positions, thread sizes, voltage, and flow rating in bilingual text buyers can quote from.

Zoom into connectors and nameplates

Highlight a connector, gauge, or nameplate so buyers verify compatibility from the listing image.

Export to Alibaba and Made-in-China sizes

Pick a platform main-image size and export a clean spec image — no re-cropping.

How it works
  1. 1 Upload an equipment photo
  2. 2 Mark dimensions, ports & specs
  3. 3 Export platform main images & spec table

Industry size standards

Pallets, containers and industrial packaging follow international standards such as ISO 6780, ISO 668 and ISO 15750. These guides list the exact dimensions buyers expect to see on a spec diagram:

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Industrial Spec Diagram Maker - No CAD | SizeMarker