MyActuator RMD-H-70-15 Hollow Direct-Drive Actuator (CAN, 200W)
MyActuator RMD-H-70-15 Hollow Direct-Drive Actuator (CAN, 200W)
🤖 70 mm hollow direct-drive with 17-bit precision - the versatile middle of the H series.
🔍 Product Overview
The RMD-H-70-15-200-C is a 200 W integrated hollow direct-drive module: a high-speed external-rotor BLDC motor with FOC driver and a 17-bit absolute encoder in a sealed, large-hollow housing. It delivers smooth, precise, backdrivable motion for robot joints, gimbals and pan-tilt systems, with over 84% efficiency and repeat position accuracy under 0.01 degrees.
📋 Technical Specifications
Series | RMD-H hollow direct-drive (external-rotor) |
Model | RMD-H-70-15-200-C |
Rated power | 200 W |
Input voltage | 48 V |
No-load speed | ~2800 rpm; rated ~2400 rpm |
Torque | Rated ~0.8 N.m; peak ~2 N.m |
Encoder | ABS 17-bit, repeat accuracy < 0.01 deg |
Weight | ~0.47 kg |
Communication | CAN BUS |
Payload | Axial ~1.87 kN, radial ~0.44 kN |
🧩 Purpose & Real-World Applications
Robot joints with through-bore wiring - the large hollow shaft routes cables/optics straight through the axis
Gimbals, pan-tilt heads and camera stabilisation - smooth, silent, high-bandwidth direct drive
Robotic arm and wrist joints needing backdrivable, gearless motion
AGV/AMR steering and precision automation
🎯 Who Is This For?
Humanoid & legged-robot startups, university robotics labs, and industrial R&D teams building arms, joints, grippers and precision motion systems - plus advanced makers who need integrated, bus-controlled smart actuators.
⚠️ Pre-Order & Price Disclaimer
Imported on demand (pre-order): genuine MyActuator unit imported against your confirmed order with GST invoice, typically shipping in 2-4 weeks. The price shown is an approximate landed-cost estimate (international shipping + customs duty + GST + our margin included) and may vary with shipping, logistics and currency exchange at the time of import. MyActuator sells these newer modules on a quote basis - we confirm the exact price before your order is placed.
📦 Bulk & Institutional Orders
Building a full humanoid / robot-arm BOM or equipping a lab? Reach out for bulk / volume pricing at team@robotechminds.com - we handle multi-unit imports, GST invoicing and institutional (college / research / GeM) procurement.

