{"title":"45KG Torque Coreless Waterproof Servo","handle":"45kg-torque-coreless-waterproof-servo","url":"/products/45kg-torque-coreless-waterproof-servo","description":"A high-torque coreless waterproof servo delivering up to 45 kg·cm of stall torque at 8.4V. The all-metal gear train and aluminium shell provide excellent durability, while IP67-rated waterproofing — achieved through laminated circuit boards, waterproof gaskets, and breathable composite sealing — makes it suitable for outdoor and marine robotics applications.\n\nThe coreless motor with MOS driver offers smooth, low-jitter operation with reduced noise compared to standard brushed servos. The servo supports 180° rotation within a 500–2500 µs pulse range and features an internal pulse lock function that holds position with a single PPM pulse, reducing processor overhead and extending service life.\n\nKey Features\n\n\n45 kg·cm Stall Torque – At 8.4V (35 kg·cm at 6V)\n\nIP67 Waterproof – Sealed circuit board with breathable composite waterproof coating\n\nCoreless Motor – Smooth, responsive operation with low jitter and minimal noise\n\nAll-Metal Gears – Durable metal gear train for high-load applications\n\nAluminium Shell – Strong, wear-resistant housing with good heat dissipation\n\n180° Rotation – Precise angle control within 500–2500 µs pulse range\n\nNo Internal Limit – Can physically rotate 360° without jamming\n\nPulse Lock Function – Holds position with a single PPM pulse, reducing controller workload\n\n2 µs Dead Zone – Responsive to small signal changes\n\nDual Ball Bearings – Smooth output shaft rotation under load\n\n600,000+ Cycle Lifespan – Designed for long-term reliability\n\n\nSpecifications\n\n\nControl System: PWM (digital signal processing)\n\nWorking Voltage: 6.0–8.4V\n\nMax Torque: 35 kg·cm at 6V / 45 kg·cm at 8.4V\n\nNo-Load Speed: 0.12 sec/60° at 6V / 0.11 sec/60° at 8.4V\n\nNo-Load Current: 300 mA at 6V / 450 mA at 8.4V\n\nStall Current: 3100 mA at 6V / 3900 mA at 8.4V\n\nPulse Width Range: 500–2500 µs\n\nRotation Angle: 180°\n\nDead Zone: 2 µs\n\nMotor Type: Coreless (MOS driver)\n\nBearings: 2× ball bearings\n\nGear Material: All metal\n\nShell Material: Aluminium\n\nWaterproof Rating: IP67\n\nOperating Temperature: −20°C to +60°C\n\nService Life: >600,000 cycles\n\nDimensions: 40 × 20 × 40.5 mm\n\n\nIdeal For\n\nMulti-joint walking robots and robotic arms\nRC boats and marine robotics\nOutdoor and all-weather robot projects\nDIY robot cars and tracked vehicles\nProfessional development and research applications\n\n\nPackage Contents\n\n1× 45 kg Torque Coreless Waterproof Servo\n1× Servo horn and screw pack\n\n\n\nTip: Also available in a brushless motor variant with lower current draw (up to 7A stall), 1 µs dead zone, and over 1 million cycle lifespan.\n","vendor":"DFRobot","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":2014,"title":"Default Title","sku":"DF-SER0061","price":75.27,"on_sale":false,"in_stock":true,"available_quantity":97,"option1":"Default Title"}]}