{
 "version": "2026-10-20",
 "license": "Dimension sheets are written by Xem Studio from the cited sources and are free to use (CC BY 4.0, attribute 'Xem Studio'). Linked files belong to their publishers under the license shown; Xem Studio does not host them. 'license_verified: false' means the license shown is from memory or the publisher's page as last read and should be confirmed at the link before commercial use.",
 "slug": "archimedes-screw-mechanism",
 "name": "Archimedes' screw (water-raising screw)",
 "kind": "hardware",
 "category": "Mechanisms",
 "group": "Screws",
 "year": null,
 "question": "How does an Archimedes screw lift water?",
 "tags": [
  "mechanism",
  "screws",
  "kinematics",
  "507 mechanical movements"
 ],
 "aliases": [
  "archimedes screw",
  "screw pump",
  "water screw",
  "tornillo de Arquímedes",
  "Archimedische Schraube"
 ],
 "overall_mm": {
  "length": null,
  "width": null,
  "height": null
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 1,
 "url": "https://xemstudio.com/objects/archimedes-screw-mechanism/",
 "sheet_txt": "https://xemstudio.com/objects/archimedes-screw-mechanism/sheet.txt",
 "sheet": {
  "basis": "Xem Studio design following Brown No. 443 (1868)",
  "overall_mm": {
   "length": null,
   "width": null,
   "height": null
  },
  "notes": [
   "A helical flight turning inside a tube, inclined so each turn traps a pocket of water: turning it moves the pockets up the axis one pitch per turn — lifting by rotation with no valves.",
   "Here Ø60, pitch 60 mm, 3 turns, set at 35° to the horizontal (drawn axis 55° from vertical); it works below about 40°, where each pocket still holds water.",
   "Brown's No. 443 (Archimedes' screw, machines for raising water).",
   "Parts (each has its own page): archimedes-screw-rotor-60, archimedes-screw-tube-60.",
   "Brown's movement No. 443 (1868) shows it; this model is a Xem Studio design following his figure, every part at true size."
  ],
  "table": {
   "columns": [
    "parameter",
    "value"
   ],
   "rows": [
    [
     "outside Ø",
     "60 mm"
    ],
    [
     "pitch",
     "60 mm"
    ],
    [
     "turns",
     "3"
    ],
    [
     "inclination",
     "35°"
    ]
   ]
  }
 },
 "sheet_text": "Archimedes' screw (water-raising screw) — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/archimedes-screw-mechanism/  (CC BY 4.0)\nBasis: Xem Studio design following Brown No. 443 (1868)\nCatalog version: 2026-10-20\n\nSizes: see table below\n- A helical flight turning inside a tube, inclined so each turn traps a pocket of water: turning it moves the pockets up the axis one pitch per turn — lifting by rotation with no valves.\n- Here Ø60, pitch 60 mm, 3 turns, set at 35° to the horizontal (drawn axis 55° from vertical); it works below about 40°, where each pocket still holds water.\n- Brown's No. 443 (Archimedes' screw, machines for raising water).\n- Parts (each has its own page): archimedes-screw-rotor-60, archimedes-screw-tube-60.\n- Brown's movement No. 443 (1868) shows it; this model is a Xem Studio design following his figure, every part at true size.\n\nparameter  value\noutside Ø  60 mm\npitch  60 mm\nturns  3\ninclination  35°\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- Henry T. Brown (1868, public domain): Five Hundred and Seven Mechanical Movements — scan on archive.org — web — Publisher's page; dimensions are facts — https://archive.org/details/fivehundredseven00browiala\n- 507movements.com: Brown's movement No. 443: figure, his text and an animation — web — Publisher's page; dimensions are facts — https://507movements.com/mm_443.html\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/archimedes-screw-mechanism/index.json\nAPI: https://xemstudio.com/api/geometry?object=archimedes-screw-mechanism\n",
 "sources": [
  {
   "publisher": "Henry T. Brown (1868, public domain)",
   "title": "Five Hundred and Seven Mechanical Movements — scan on archive.org",
   "url": "https://archive.org/details/fivehundredseven00browiala",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "507movements.com",
   "title": "Brown's movement No. 443: figure, his text and an animation",
   "url": "https://507movements.com/mm_443.html",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  }
 ],
 "xem": {
  "status": "free-files",
  "sheet_free": true,
  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "archimedes-screw-rotor-60",
  "archimedes-screw-tube-60"
 ],
 "fits": [],
 "dimensions": "exact (nominal, no printing tolerance)",
 "dimension_rule": "All geometry on Xem Studio is exact (nominal, true size) with no printing tolerance. Where a part meets another part, the object lists its mating features (feature, exact size, what it mates with, fit class: press, slide, run, socket, clamp or designed). Apply your process's allowance to those features only; 'designed' gaps are part of the design and stay as drawn.",
 "mating": [],
 "faq": [
  {
   "q": "How does an Archimedes screw lift water?",
   "a": "A helical flight turning inside a tube, inclined so each turn traps a pocket of water: turning it moves the pockets up the axis one pitch per turn — lifting by rotation with no valves."
  }
 ],
 "files_license": null,
 "offers": [
  {
   "file": "archimedes-screw-mechanism-assembly",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/archimedes-screw-mechanism/archimedes-screw-mechanism-assembly.step",
   "stl": "https://xemstudio.com/files/hardware/archimedes-screw-mechanism/archimedes-screw-mechanism-assembly.stl",
   "note": "Assembled mechanism, all parts placed at one pose (STEP keeps each part separate)"
  }
 ],
 "markdown": "https://xemstudio.com/objects/archimedes-screw-mechanism/index.md"
}