Engineering Drawing Translator
English → Chinese manufacturing terminology for you and your machining suppliers. Read an English PDF or scanned drawing, check the extracted notes and translate technical terms. Also supports Chinese, Russian, Italian, Korean and Thai manufacturing terms. Your document stays in your browser.
英文工程图纸翻译中文：方便你和国内加工厂理解客户的材料、工艺、公差与技术要求。选择 PDF 或图片，核对原文后翻译；保留原图尺寸。支持中文、英文、俄语、意大利语、韩语和泰语。
精确识别：框选区域 / 旋转文字
识别结果会替换下方原文。小数点、直径符号、上下偏差仍需对照原图核实。
Translation / 译文
Review all dimensions, tolerances and symbols against the original drawing. Glossary translation is a reading aid, not an approved manufacturing drawing.
Matched manufacturing terms / 命中术语
Optional cloud translation
Cloud translation is not configured. Local PDF extraction, OCR and terminology translation are free. Files are not sent to Gemini. A future cloud option will require your explicit choice and will stop at the monthly budget limit.
Translate English engineering drawing notes into Chinese
A CAD drawing often contains a mixture of numbers, material grades and manufacturing instructions. When a Chinese machining supplier reviews custom CNC parts, translating “surface roughness” as “表面粗糙度” matters more than translating the surrounding sentence word for word. This tool matches a focused manufacturing glossary and leaves unmatched text visible for review.
Upload a PDF with selectable text for direct extraction. A scanned PDF or image uses local optical character recognition (OCR). Check the extracted original notes before translating: a blurry decimal point, diameter symbol or tolerance can change the meaning of a specification.
Examples from the manufacturing glossary
| 中文 | English | Context |
|---|---|---|
| 未注公差 | General tolerances | Tolerances for dimensions without individual limits |
| 去毛刺 | Deburr | Remove burrs after machining |
| 表面粗糙度 | Surface roughness | Keep the original Ra / Rz value and unit |
| 阳极氧化 | Anodizing | Surface treatment; confirm type, thickness and color |
| 螺纹孔 | Threaded hole | Retain the thread designation, pitch and depth |
Frequently asked questions
Is this engineering drawing translator free?
Yes. The local PDF reader, OCR and glossary run in your browser without a translation subscription or an RFQ. Choose English, Chinese, Russian, Italian, Korean or Thai as the source or target language. No cloud translation charges are incurred in this version.
Can I translate an entire CAD drawing?
This version extracts and translates notes from PDF, PNG and JPG files. It does not redraw geometry, replace CAD annotations or produce a certified drawing. Export a PDF from DWG or DXF before using the translator.
Are dimensions and material grades changed?
The glossary replaces terms while keeping surrounding numbers and symbols. OCR may still misread the source. Check values such as ±0.05, Ra 1.6, M6 × 1 and 6061-T6 manually.
Are my engineering drawings public?
No. Local translation does not upload your files. Your document and results are not published, indexed or shared with other users. Clearing or leaving the page removes the in-memory translation.
How do I request CNC machining services?
Use the separate quote form to share your 2D CAD drawing, quantity and material. A STEP model can be added for 3D review. HenryCNC provides engineering and sourcing support for CNC machining in China through partner suppliers.
From drawing to custom CNC parts
Ready to discuss manufacturing? Send the original drawing with your material, quantity and delivery requirements. Your engineer can clarify translation uncertainties before quoting.
Upload CAD & Get Quote → Read the CAD drawing checklist