{
 "id": "ac-maxon-hej-70-48-60",
 "name": "maxon HEJ 70-48-60 High Efficiency Joint",
 "subcategory": "joint-actuators",
 "brand": "maxon",
 "mpn": "HEJ 70-48-60 (P/N 933846 / 933847)",
 "summary": "Western benchmark: sealed IP67 EtherCAT robot joint (motor, gear, controller, output encoder) with impedance control, about 1 kg, for legged and mobile robots.",
 "maker": {
  "name": "maxon motor ag",
  "country": "CH",
  "role": "brand"
 },
 "made_in": "unknown",
 "specs": {
  "peak_torque_nm": {
   "label": "Peak torque",
   "value": "63 N·m (actively controlled, repetitive; ~1-2 s)",
   "num": 63,
   "unit": "N·m"
  },
  "rated_torque_nm": {
   "label": "Rated torque",
   "value": "27 N·m nominal (free space, 2 rad/s)",
   "num": 27,
   "unit": "N·m"
  },
  "ratio": {
   "label": "Gear ratio",
   "value": "unknown",
   "num": null
  },
  "voltage_v": {
   "label": "Voltage",
   "value": "30-60 V (data at 48 V)",
   "num": 48,
   "unit": "V"
  },
  "mass_g": {
   "label": "Mass",
   "value": "1.04 kg",
   "num": 1040,
   "unit": "g"
  },
  "interface": {
   "label": "Interface",
   "value": "EtherCAT (2 ports, daisy chain)",
   "num": null
  }
 },
 "price": [],
 "moq": "unknown",
 "lead_time": "unknown",
 "hts": "unknown",
 "compliance": {
  "ndaa": "unknown",
  "blue_uas": "unknown",
  "fcc": "n/a",
  "notes": "Datasheet rev 1.2, Jun 2026. Gear ratio not published; backlash 0.5 deg average. Price by quote; no stock state."
 },
 "links": {
  "product": "https://global.maxongroup.com/hubfs/Datasheet_HEJ_70_48_60_rev1.2.pdf?hsLang=en",
  "datasheet": "https://global.maxongroup.com/hubfs/Datasheet_HEJ_70_48_60_rev1.2.pdf?hsLang=en",
  "cad": null
 },
 "equivalents": [],
 "pairs_with": [],
 "maglev": {
  "custom": "",
  "directory_ref": null
 },
 "sources": [
  {
   "url": "https://global.maxongroup.com/hubfs/Datasheet_HEJ_70_48_60_rev1.2.pdf?hsLang=en",
   "what": "specs (maker datasheet)"
  }
 ],
 "confidence": "VERIFIED",
 "stock": {
  "status": "unknown",
  "source": "https://global.maxongroup.com/hubfs/Datasheet_HEJ_70_48_60_rev1.2.pdf?hsLang=en",
  "as_of": "2026-10-30"
 },
 "category": "actuators",
 "subcategory_title": "Integrated Joint Actuators",
 "icon": "joint",
 "origin": {
  "code": "CH",
  "basis": "hq"
 },
 "hts_resolved": {
  "code": "8501.31.40.00",
  "typical": true,
  "key": "integrated-joint-actuators",
  "basis": "subcategory",
  "confidence": "low",
  "note": "No modern ruling found for a motor+reducer+driver+encoder robot joint. Treat as unresolved."
 },
 "us_duty_by_origin": {
  "as_of": "2026-10-29",
  "rates": [
   {
    "origin": "CN",
    "duty_pct": 41.5,
    "possible_pct": 0,
    "usmca": false
   },
   {
    "origin": "TW",
    "duty_pct": 10,
    "possible_pct": 0,
    "usmca": false
   },
   {
    "origin": "VN",
    "duty_pct": 16.5,
    "possible_pct": 0,
    "usmca": false
   },
   {
    "origin": "IN",
    "duty_pct": 14,
    "possible_pct": 0,
    "usmca": false
   },
   {
    "origin": "JP",
    "duty_pct": 12.5,
    "possible_pct": 0,
    "usmca": false
   },
   {
    "origin": "KR",
    "duty_pct": 12.5,
    "possible_pct": 0,
    "usmca": false
   },
   {
    "origin": "DE",
    "duty_pct": 10,
    "possible_pct": 0,
    "usmca": false
   },
   {
    "origin": "MX",
    "duty_pct": 14,
    "possible_pct": 0,
    "usmca": true
   },
   {
    "origin": "US",
    "duty_pct": 0,
    "possible_pct": 0,
    "usmca": false
   }
  ]
 },
 "url": "https://parts.trymaglev.com/p/ac-maxon-hej-70-48-60/",
 "markdown": "https://parts.trymaglev.com/p/ac-maxon-hej-70-48-60/index.md",
 "equivalents_detail": [],
 "pairs_with_detail": []
}