{ "id": "ac-cubemars-ak80-64", "name": "CubeMars AK80-64 KV80 Robotic Actuator", "subcategory": "joint-actuators", "brand": "CubeMars", "mpn": "AK80-64 KV80", "summary": "High-ratio (64:1) planetary joint for arms and exoskeletons that need holding torque more than backdrivability.", "maker": { "name": "Nanchang Kude Intelligent Technology (CubeMars; Sanrui group, same group as T-MOTOR)", "country": "CN", "role": "brand" }, "made_in": "unknown", "specs": { "peak_torque_nm": { "label": "Peak torque", "value": "120 N·m", "num": 120, "unit": "N·m" }, "rated_torque_nm": { "label": "Rated torque", "value": "48 N·m", "num": 48, "unit": "N·m" }, "ratio": { "label": "Gear ratio", "value": "64:1 planetary", "num": 64 }, "voltage_v": { "label": "Voltage", "value": "24/48 V", "num": 48, "unit": "V" }, "mass_g": { "label": "Mass", "value": "850 g", "num": 850, "unit": "g" }, "interface": { "label": "Interface", "value": "CAN (A1257WR-S-4P) + UART (A1257WR-S-3P)", "num": null }, "encoder": { "label": "Encoder", "value": "14-bit magnetic (inner loop only)", "num": null }, "backlash": { "label": "Backlash", "value": "0.18°", "num": null } }, "price": [ { "qty": 1, "usd": 889.9, "kind": "list", "source": "https://www.cubemars.com/product/ak80-64-kv80-robotic-actuator.html", "as_of": "2026-10-29", "note": "Official CubeMars store price; freight/duties extra. Free international express over US$200 per product page." } ], "moq": "unknown", "lead_time": "unknown", "hts": "unknown", "compliance": { "ndaa": "unknown", "blue_uas": "unknown", "fcc": "n/a", "notes": "" }, "links": { "product": "https://www.cubemars.com/product/ak80-64-kv80-robotic-actuator.html", "datasheet": null, "cad": "https://www.cubemars.com/data/cms/202602/ak80-64-robotic-actuator-3d-drawing.zip" }, "equivalents": [ "ac-myactuator-rmd-x8-p20-120", "ac-robstride-rs04" ], "pairs_with": [ "ac-rls-aksim-2" ], "maglev": { "custom": "", "directory_ref": null }, "sources": [ { "url": "https://www.cubemars.com/product/ak80-64-kv80-robotic-actuator.html", "what": "specs + USD price + CAD/2D drawing paths" } ], "confidence": "VERIFIED", "category": "actuators", "subcategory_title": "Integrated Joint Actuators", "icon": "joint", "image": { "url": "https://parts.trymaglev.com/img/ac-cubemars-ak80-64.webp", "thumb": "https://parts.trymaglev.com/img/t/ac-cubemars-ak80-64.webp", "source_image": "https://www.cubemars.com/images/202512/goods_img/ak80-64-kv80.jpg", "source_page": "https://www.cubemars.com/product/ak80-64-kv80-robotic-actuator.html", "background": "removed (Apple Vision)", "as_of": "2026-10-29" }, "origin": { "code": "CN", "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-cubemars-ak80-64/", "markdown": "https://parts.trymaglev.com/p/ac-cubemars-ak80-64/index.md", "equivalents_detail": [ { "id": "ac-myactuator-rmd-x8-p20-120", "name": "MyActuator RMD-X8-P20-120 Planetary Actuator", "brand": "MyActuator", "mpn": "RMD-X8-P20-120-E", "category": "actuators", "subcategory": "joint-actuators", "summary": "MyActuator's 120 N·m flagship planetary joint for humanoid hips/knees; Maglev's first-wave benchmark SKU.", "origin": "CN", "origin_basis": "hq", "price_usd": 999, "price_qty": 1, "ndaa": "unknown", "blue_uas": "unknown", "image": "https://parts.trymaglev.com/img/ac-myactuator-rmd-x8-p20-120.webp", "url": "https://parts.trymaglev.com/p/ac-myactuator-rmd-x8-p20-120/", "json": "https://parts.trymaglev.com/api/parts/ac-myactuator-rmd-x8-p20-120.json" }, { "id": "ac-robstride-rs04", "name": "RobStride RS04 QDD Joint Actuator", "brand": "RobStride", "mpn": "RS04", "category": "actuators", "subcategory": "joint-actuators", "summary": "Highest-torque RobStride QDD joint (120 N·m peak) for humanoid hips and knees; rated 40 N·m only with a 345x345 mm aluminium plate (35 N·m with 220x200 mm).", "origin": "CN", "origin_basis": "hq", "price_usd": 168.87, "price_qty": 1, "ndaa": "unknown", "blue_uas": "unknown", "image": "https://parts.trymaglev.com/img/ac-robstride-rs04.webp", "url": "https://parts.trymaglev.com/p/ac-robstride-rs04/", "json": "https://parts.trymaglev.com/api/parts/ac-robstride-rs04.json" } ], "pairs_with_detail": [ { "id": "ac-rls-aksim-2", "name": "RLS AksIM-2 Off-Axis Absolute Rotary Encoder", "brand": "RLS (Renishaw associate)", "mpn": "AksIM-2 (MBxxx readhead + MRAxxx ring; configured)", "category": "actuators", "subcategory": "joint-encoders", "summary": "Thin through-hole absolute magnetic ring encoder (ID 8-68 mm) widely used as the output-side encoder in robot joints and exoskeletons.", "origin": "SI", "origin_basis": "hq", "price_usd": 238.97, "price_qty": 1, "ndaa": "unknown", "blue_uas": "unknown", "image": "https://parts.trymaglev.com/img/ac-rls-aksim-2.webp", "url": "https://parts.trymaglev.com/p/ac-rls-aksim-2/", "json": "https://parts.trymaglev.com/api/parts/ac-rls-aksim-2.json" } ] }