S8218 Servo Motor 40KG
The CYS-S8218 40KG High Torque Digital Servo is a heavy-duty servo motor built for 1/5 scale RC cars and demanding robotics projects. It delivers up to 40 kg.cm of stall torque at 7.4V with a fast 0.18s/60° response speed. Featuring full metal gears, dual ball bearings, and an aluminum alloy case, it offers exceptional durability and precision. Compatible with standard PWM control, ideal for RC vehicles, robotic arms, and industrial prototypes.
ed with metal gears for reliability.
سيرفو CYS-S8218 رقمي عالي العزم 40 كغم هو محرك سيرفو ثقيل الأداء مصمم لسيارات RC بمقياس 1/5 ومشاريع الروبوتات المتقدمة. يوفر عزمًا يصل إلى 40 كغم.سم عند 7.4 فولت بسرعة استجابة سريعة 0.18 ثانية/60 درجة. مزود بـ تروس معدنية كاملة، ومحامل كروية مزدوجة، وهيكل من سبيكة الألمنيوم لمتانة ودقة استثنائية. متوافق مع تحكم PWM القياسي، ومثالي لسيارات RC والأذرع الروبوتية والنماذج الصناعية.
The CYS-S8218 40KG Digital High Voltage Servo Motor is a premium, heavy-duty servo engineered for high-performance applications such as 1/5 scale RC cars, large robotic arms, and industrial automation prototypes. Built with high-quality aluminum alloy housing and precision metal gears, it provides exceptional reliability under continuous load.
The servo offers a powerful stall torque of 38 kg.cm at 6.0V and 40 kg.cm at 7.4V, along with a rapid 0.18 sec/60° operating speed in high-voltage mode. The integrated NdFeB (neodymium) motor delivers strong, responsive performance, while the dual ball bearing design ensures smooth rotation and long service life.
Equipped with a digital control circuit and a tight 4 µs dead band width, the S8218 provides accurate positioning and stable holding torque. It uses the standard PWM control protocol (1500 µs neutral), making it fully compatible with most RC receivers, Arduino, STM32, and Raspberry Pi controllers. The 17T standard horn spline allows easy mounting of common servo horns and accessories.
Specifications
- Model: CYS-S8218
- Weight: 164g ± 1g
- Dimensions: 59.5 x 29.2 x 55.2 mm
- Operating Voltage: 6.0V – 7.4V
- Operating Temperature: -10°C to +50°C
- Control System: Positive Pulse Width Control, 1500 µs neutral
- Operating Speed (6.0V): 0.20 sec / 60° (no load)
- Operating Speed (7.4V): 0.18 sec / 60° (no load)
- Stall Torque (6.0V): 38 kg.cm
- Stall Torque (7.4V): 40 kg.cm
- Operating Angle: 45° per side / pulse travel 500 µs
- Direction: Anticlockwise (pulse travel 1000 – 2000 µs)
- Current Drain (6.0V): 20 mA idle / 180 mA no-load operating
- Current Drain (7.4V): 20 mA idle / 200 mA no-load operating
- Stall Current: 7.5A (6.0V) / 8.6A (7.4V)
- Dead Band Width: 4 µs
- Motor Type: NdFeB (Neodymium) motor
- Bearing Type: Dual ball bearing
- Gear Type: Full metal gear
- Horn Spline: 17T
- Wire Length: 300 mm ± 5 mm
- Wiring:
- Red: Positive (+)
- Brown / Black: Negative (–)
- Orange / White: Signal
Applications
- 1/5 scale RC cars, trucks, and buggies
- Large RC boats and aircraft
- High-torque robotic arms and grippers
- Industrial automation and machinery prototypes
- Animatronics and large mechanical models
- Heavy-duty pan-tilt camera systems
- Educational robotics and university research projects
- CNC and precision motion control experiments