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.

Runs in your browser — no download

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

Give buyers the numbers to source — no CAD needed

Start free · 30 credits on sign-up
Industrial Spec Diagram Maker - No CAD | SizeMarker