SERVO MOTOR-MG995

Description

🤖 MG995 High-Torque Servo Motor – Heavy-Duty Metal Gear Servo for Industrial Applications

The MG995 High-Torque Servo Motor is a professional-grade standard-size servo featuring robust metal gears and powerful torque output. Delivering up to 11kg·cm of torque, this analog servo is designed for demanding applications requiring significant power such as large robot arms, RC vehicles, industrial automation, and heavy-duty mechanisms. With its durable metal gear train, double ball bearings, and high-current motor, the MG995 is the go-to choice for serious robotics and automation projects that exceed the capabilities of micro servos.

✨ Key Highlights

💪 High Torque Output – 11kg·cm @ 6V (10kg·cm @ 4.8V)
⚙️ Full Metal Gears – Steel/brass gears for extreme durability
📐 Standard Size – Industry-standard form factor: 40.7mm x 19.7mm x 42.9mm
🔄 180° Rotation – Precise angular positioning from 0° to 180°
⚡ 4.8V – 7.2V Operation – Wide voltage range for flexibility
🏗️ Industrial Grade – Built for continuous heavy-duty operation
🔩 Double Ball Bearing – Smooth operation under high loads
💡 High-Current Motor – Stall current up to 2.5A (powerful performance)
🔧 Universal Mounting – Standard servo mounting pattern
🌐 Widely Compatible – Works with all servo controllers and Arduino

📊 Technical Specifications

Specification	Details
🏷️ Model Number	MG995 (Tower Pro or equivalent)
🔧 Servo Type	Analog High-Torque Metal Gear Servo
📏 Size Category	Standard Size Servo
⚡ Operating Voltage	4.8V – 7.2V DC
🔋 Recommended Voltage	6V DC (optimal performance)
💡 No-Load Current	~500mA @ 4.8V / ~650mA @ 6V
⚙️ Stall Current (Max)	~2000mA @ 4.8V / ~2500mA @ 6V
💪 Torque @ 4.8V	10kg·cm (139oz·in)
💪 Torque @ 6V	11kg·cm (153oz·in)
💪 Torque @ 7.2V	~12kg·cm (167oz·in) – Not recommended for continuous use
🔄 Rotation Range	0° to 180° (approximately)
⏱️ Speed @ 4.8V	0.20 sec/60° (no load)
⏱️ Speed @ 6V	0.17 sec/60° (no load)
📡 Control Signal	PWM (Pulse Width Modulation)
🔊 PWM Frequency	50Hz (20ms period)
📏 Pulse Width Range	1ms (0°) to 2ms (180°), 1.5ms (90° center)
🎯 Neutral Position	1.5ms pulse width (90°)
🔌 Connector Type	Standard 3-pin servo connector (female, JR/Futaba compatible)
📏 Wire Length	~300mm (30cm)
⚙️ Gear Type	Full metal gears (Steel/Brass alloy)
🏗️ Gear Ratio	High reduction for maximum torque
🔩 Bearing Type	Double ball bearing (output shaft)
🔩 Output Shaft	Standard 25T spline (25-tooth)
🌡️ Operating Temperature	0°C to +60°C
📐 Dimensions (L x W x H)	40.7mm x 19.7mm x 42.9mm (including mounting tabs)
⚖️ Weight	~55g (1.94oz)
🔧 Mounting Pattern	Standard servo mounting (48mm hole spacing)
🔩 Mounting Screw Size	M3 screws (standard servo mounting)
📦 Case Material	High-impact ABS plastic

🔌 Wire Color & Pin Configuration

Wire Color	Function	Connection
Brown (or Black)	Ground (GND)	Connect to power supply ground / Controller GND
Red	Power (VCC)	Connect to +6V (4.8V-7.2V) power supply
Orange (or Yellow/White)	Control Signal (PWM)	Connect to PWM pin (Arduino, servo controller)

📏 PWM Pulse Width to Angle Mapping

Angle Position	Pulse Width	Duty Cycle @ 50Hz
0° (Minimum)	1.0ms (1000µs)	~5%
45°	1.25ms (1250µs)	~6.25%
90° (Center)	1.5ms (1500µs)	~7.5%
135°	1.75ms (1750µs)	~8.75%
180° (Maximum)	2.0ms (2000µs)	~10%

🎯 Perfect For

Application	Description
🤖 Industrial Robot Arms	Heavy-duty robotic arms, payload 1-2kg, professional automation
🚗 Large RC Vehicles	RC trucks, monster trucks, rock crawlers, heavy steering systems
⛵ RC Boats & Ships	Rudder control for large vessels, sailing yachts, tugboats
✈️ RC Aircraft	Large planes, control surfaces for aerobatic aircraft, UAVs
🏗️ Construction Equipment Models	Excavators, cranes, bulldozers, heavy machinery replicas
🎭 Industrial Animatronics	Theme park props, museum exhibits, large-scale animations
🚪 Heavy-Duty Automation	Industrial gates, large door openers, commercial access control
🎬 Motion Control Systems	Camera sliders, professional gimbals, studio equipment
🔬 Laboratory Equipment	Automated test rigs, sample handling, precision positioning
📡 Antenna Systems	Heavy-duty antenna rotators, satellite dishes, directional arrays
🏭 Factory Automation	Pick-and-place systems, sorting mechanisms, conveyor controls
🌱 Agricultural Automation	Greenhouse vents, irrigation valves, automated feeding systems

📦 Package Contents

✅ 1x MG995 High-Torque Metal Gear Servo Motor
✅ 4x Servo Horns (various shapes: single arm, cross, double arm, star)
✅ 8x Mounting Screws (4x M3 for case, 4x for servo horns)
✅ 4x Rubber Grommets (vibration dampening)
✅ 4x Brass Eyelets (for grommet installation)
✅ 30cm 3-wire cable with connector
⚠️ Note: High-current power supply REQUIRED (3A minimum @ 6V)
⚠️ Note: NEVER power from Arduino – use dedicated PSU
⚠️ Note: Servo extension cables sold separately

💻 Arduino Code Examples

Basic Heavy-Duty Servo Control

Code Snippet

Code Snippet
`#include <Servo.h> Servo heavyServo; // Create servo object void setup() { heavyServo.attach(9); // Attach to pin 9 Serial.begin(9600); Serial.println("MG995 High-Torque Servo Test"); // Move to center position slowly heavyServo.write(90); delay(2000); // Give time to reach position }` void loop() { // Very slow, controlled movement for heavy loads Serial.println("Moving to 0° (slow)"); for (int angle = 90; angle >= 0; angle -= 2) { heavyServo.write(angle); delay(50); // Slow movement reduces mechanical stress } delay(1000); // Hold position Serial.println("Moving to 180° (slow)"); for (int angle = 0; angle <= 180; angle += 2) { heavyServo.write(angle); delay(50); } delay(1000); // Return to center Serial.println("Returning to 90°"); heavyServo.write(90); delay(3000); }



#include <Servo.h>
Servo heavyServo; // Create servo object
void setup() {

  heavyServo.attach(9); // Attach to pin 9

  Serial.begin(9600);

  Serial.println("MG995 High-Torque Servo Test");

  

  // Move to center position slowly

  heavyServo.write(90);

  delay(2000); // Give time to reach position

}

void loop() { // Very slow, controlled movement for heavy loads Serial.println("Moving to 0° (slow)"); for (int angle = 90; angle >= 0; angle -= 2) { heavyServo.write(angle); delay(50); // Slow movement reduces mechanical stress } delay(1000); // Hold position Serial.println("Moving to 180° (slow)"); for (int angle = 0; angle <= 180; angle += 2) { heavyServo.write(angle); delay(50); } delay(1000); // Return to center Serial.println("Returning to 90°"); heavyServo.write(90); delay(3000); }

Industrial Robot Arm (Multi-MG995)

Code Snippet

Code Snippet
#include <Servo.h> // Define servos for 5-DOF robot arm Servo base; // MG995 - Base rotation (heaviest load) Servo shoulder; // MG995 - Shoulder joint (heavy load) Servo elbow; // MG995 - Elbow joint (medium load) Servo wrist; // MG90S - Wrist rotation (light load) Servo gripper; // SG90 - Gripper (minimal load) // Define servo positions for different poses struct Pose { int baseAngle; int shoulderAngle; int elbowAngle; int wristAngle; int gripperAngle; }; Pose homePos = {90, 90, 90, 90, 30}; // Home position Pose pickPos = {45, 60, 120, 80, 30}; // Pick position Pose placePos = {135, 70, 100, 90, 30}; // Place position void setup() { // Attach servos to pins base.attach(3); shoulder.attach(5); elbow.attach(6); wrist.attach(9); gripper.attach(10); Serial.begin(9600); Serial.println("Industrial Robot Arm Initialized"); // Move to home position moveToPose(homePos, 100); // 100ms per degree delay(2000); } void moveToPose(Pose target, int delayTime) { // Get current positions int currBase = base.read(); int currShoulder = shoulder.read(); int currElbow = elbow.read(); int currWrist = wrist.read(); int currGripper = gripper.read(); // Calculate maximum steps needed int maxSteps = max({ abs(target.baseAngle - currBase), abs(target.shoulderAngle - currShoulder), abs(target.elbowAngle - currElbow), abs(target.wristAngle - currWrist), abs(target.gripperAngle - currGripper) }); // Move all servos simultaneously for (int step = 0; step <= maxSteps; step++) { base.write(map(step, 0, maxSteps, currBase, target.baseAngle)); shoulder.write(map(step, 0, maxSteps, currShoulder, target.shoulderAngle)); elbow.write(map(step, 0, maxSteps, currElbow, target.elbowAngle)); wrist.write(map(step, 0, maxSteps, currWrist, target.wristAngle)); gripper.write(map(step, 0, maxSteps, currGripper, target.gripperAngle)); delay(delayTime / maxSteps); // Smooth motion } } `void loop() { // Pick and place sequence Serial.println("Moving to pick position..."); moveToPose(pickPos, 2000); delay(500); // Close gripper gripper.write(90); delay(1000); Serial.println("Moving to place position..."); moveToPose(placePos, 2000); delay(500); // Open gripper gripper.write(30); delay(1000); Serial.println("Returning home..."); moveToPose(homePos, 2000); delay(3000); }`



#include <Servo.h>
// Define servos for 5-DOF robot arm

Servo base;      // MG995 - Base rotation (heaviest load)

Servo shoulder;  // MG995 - Shoulder joint (heavy load)

Servo elbow;     // MG995 - Elbow joint (medium load)

Servo wrist;     // MG90S - Wrist rotation (light load)

Servo gripper;   // SG90 - Gripper (minimal load)
// Define servo positions for different poses

struct Pose {

  int baseAngle;

  int shoulderAngle;

  int elbowAngle;

  int wristAngle;

  int gripperAngle;

};
Pose homePos = {90, 90, 90, 90, 30};     // Home position

Pose pickPos = {45, 60, 120, 80, 30};    // Pick position

Pose placePos = {135, 70, 100, 90, 30};  // Place position
void setup() {

  // Attach servos to pins

  base.attach(3);

  shoulder.attach(5);

  elbow.attach(6);

  wrist.attach(9);

  gripper.attach(10);

  

  Serial.begin(9600);

  Serial.println("Industrial Robot Arm Initialized");

  

  // Move to home position

  moveToPose(homePos, 100); // 100ms per degree

  delay(2000);

}
void moveToPose(Pose target, int delayTime) {

  // Get current positions

  int currBase = base.read();

  int currShoulder = shoulder.read();

  int currElbow = elbow.read();

  int currWrist = wrist.read();

  int currGripper = gripper.read();

  

  // Calculate maximum steps needed

  int maxSteps = max({

    abs(target.baseAngle - currBase),

    abs(target.shoulderAngle - currShoulder),

    abs(target.elbowAngle - currElbow),

    abs(target.wristAngle - currWrist),

    abs(target.gripperAngle - currGripper)

  });

  

  // Move all servos simultaneously

  for (int step = 0; step <= maxSteps; step++) {

    base.write(map(step, 0, maxSteps, currBase, target.baseAngle));

    shoulder.write(map(step, 0, maxSteps, currShoulder, target.shoulderAngle));

    elbow.write(map(step, 0, maxSteps, currElbow, target.elbowAngle));

    wrist.write(map(step, 0, maxSteps, currWrist, target.wristAngle));

    gripper.write(map(step, 0, maxSteps, currGripper, target.gripperAngle));

    delay(delayTime / maxSteps); // Smooth motion

  }

}

void loop() { // Pick and place sequence Serial.println("Moving to pick position..."); moveToPose(pickPos, 2000); delay(500); // Close gripper gripper.write(90); delay(1000); Serial.println("Moving to place position..."); moveToPose(placePos, 2000); delay(500); // Open gripper gripper.write(30); delay(1000); Serial.println("Returning home..."); moveToPose(homePos, 2000); delay(3000); }

Power Monitoring & Safety Cutoff

Code Snippet

Code Snippet
#include <Servo.h> Servo myServo; const int CURRENT_SENSE = A0; // ACS712 30A sensor const int VOLTAGE_SENSE = A1; // Voltage divider (6V → 5V max) const float CURRENT_THRESHOLD = 2.0; // 2A warning threshold const float VOLTAGE_MIN = 5.5; // Minimum voltage (6V nominal) void setup() { myServo.attach(9); Serial.begin(9600); myServo.write(90); } float readCurrent() { int raw = analogRead(CURRENT_SENSE); float voltage = raw * (5.0 / 1023.0); // For ACS712-30A: 66mV/A, centered at 2.5V float current = abs((voltage - 2.5) / 0.066); return current; } float readVoltage() { int raw = analogRead(VOLTAGE_SENSE); // Voltage divider: 6V → 5V (R1=1kΩ, R2=5kΩ) float voltage = raw * (5.0 / 1023.0) * 1.2; // Adjust factor return voltage; } void loop() { float current = readCurrent(); float voltage = readVoltage(); Serial.print("V: "); Serial.print(voltage); Serial.print("V \| I: "); Serial.print(current); Serial.println("A"); // Safety checks if (current > CURRENT_THRESHOLD) { Serial.println("⚠️ WARNING: High current detected!"); myServo.detach(); // Release servo delay(2000); myServo.attach(9); } if (voltage < VOLTAGE_MIN) { Serial.println("⚠️ WARNING: Low voltage detected!"); } // Normal operation myServo.write(0); delay(2000); myServo.write(180); delay(2000); }



#include <Servo.h>
Servo myServo;

const int CURRENT_SENSE = A0; // ACS712 30A sensor

const int VOLTAGE_SENSE = A1; // Voltage divider (6V → 5V max)

const float CURRENT_THRESHOLD = 2.0; // 2A warning threshold

const float VOLTAGE_MIN = 5.5; // Minimum voltage (6V nominal)
void setup() {

  myServo.attach(9);

  Serial.begin(9600);

  myServo.write(90);

}
float readCurrent() {

  int raw = analogRead(CURRENT_SENSE);

  float voltage = raw * (5.0 / 1023.0);

  // For ACS712-30A: 66mV/A, centered at 2.5V

  float current = abs((voltage - 2.5) / 0.066);

  return current;

}
float readVoltage() {

  int raw = analogRead(VOLTAGE_SENSE);

  // Voltage divider: 6V → 5V (R1=1kΩ, R2=5kΩ)

  float voltage = raw * (5.0 / 1023.0) * 1.2; // Adjust factor

  return voltage;

}

void loop() { float current = readCurrent(); float voltage = readVoltage(); Serial.print("V: "); Serial.print(voltage); Serial.print("V | I: "); Serial.print(current); Serial.println("A"); // Safety checks if (current > CURRENT_THRESHOLD) { Serial.println("⚠️ WARNING: High current detected!"); myServo.detach(); // Release servo delay(2000); myServo.attach(9); } if (voltage < VOLTAGE_MIN) { Serial.println("⚠️ WARNING: Low voltage detected!"); } // Normal operation myServo.write(0); delay(2000); myServo.write(180); delay(2000); }

✅ Advantages of MG995 Servo

Feature	Benefit
💪 Massive Torque	11kg·cm @ 6V – 6x more than MG90S, 5x more than SG90
⚙️ Full Metal Gears	Steel/brass gears handle extreme loads without stripping
📐 Standard Size	Industry-standard footprint – compatible with commercial parts
🔩 Double Ball Bearing	Smooth operation under heavy radial and axial loads
🏗️ Industrial Build Quality	Designed for continuous operation in demanding environments
⚡ Wide Voltage Range	4.8V-7.2V flexibility for different power systems
💡 High-Power Motor	Strong motor maintains speed under load
🔧 Universal Mounting	Standard servo mounting pattern – easy integration
🌐 Proven Reliability	Industry workhorse – millions deployed worldwide
💰 Good Value	High torque-to-price ratio for standard-size servos

⚠️ Critical Usage Notes & Warnings

⚡ CRITICAL: High-current PSU required – 3A minimum @ 6V, preferably 5A for safety margin
🔌 NEVER power from Arduino – 2.5A stall current will damage Arduino/USB port
🔥 Heat generation significant – Servo gets warm under load, ensure ventilation
💪 Respect torque limits – Don’t exceed 11kg·cm to prevent gear damage
⚙️ Slow movements recommended – Rapid movements with heavy loads stress gears
🔊 Noisy operation – Metal gears produce significant audible buzz
🌡️ Thermal management – Monitor temperature during continuous operation
⚖️ Heavy weight – 55g may affect balance in some applications
🔋 7.2V operation – Increases torque but shortens lifespan significantly
📏 Large capacitor essential – 2200µF-4700µF across power rails prevents voltage sag
🔌 Heavy-duty wiring – Use 18-20 AWG wire for power, minimize wire length
🛡️ Mechanical stops – Add physical limit switches to prevent overload

🔋 Power Supply Requirements (CRITICAL)

Number of Servos	Voltage	Minimum Current	Recommended PSU
1 Servo	6V	3A	5A @ 6V regulated PSU
2 Servos	6V	5A	10A @ 6V switching PSU
3-4 Servos	6V	10A	15A @ 6V industrial PSU
5+ Servos	6V	15A+	20A+ @ 6V or multiple PSUs
⚠️ CRITICAL: Each MG995 can draw 2.5A stall current – size PSU accordingly!
💡 Tip: Use 2S LiPo battery (7.4V nominal) with BEC for high-performance RC applications

🔍 Troubleshooting Guide

Problem	Possible Cause	Solution
Servo Doesn’t Move	Insufficient power or overload	✅ Use 5A+ PSU @ 6V, check for mechanical binding
Severe Jittering	Voltage drop from inadequate PSU	✅ Upgrade PSU to 5A+, add 4700µF capacitor across power
Arduino/Board Resets	Powering servo from Arduino	✅ CRITICAL: Use separate 6V PSU, common ground only
Servo Gets Very Hot	Continuous stalling or overload	✅ Reduce load, add heatsink, implement duty cycle breaks
Loud Grinding Noise	Damaged gears or debris in gearbox	✅ Disassemble and inspect, clean gears, replace if damaged
Slow Response	Low voltage or heavy load	✅ Ensure 6V supply, check load doesn’t exceed 11kg·cm
Won’t Hold Position	Stripped gears or weak motor	✅ Replace servo, ensure load within rating
Erratic Movement	Poor signal or electrical noise	✅ Use shielded cable for signal, separate power/signal wiring

💡 Pro Tips for MG995 Usage

🔋 Use 6V for optimal balance – Best torque-to-lifespan ratio
📏 Large capacitor bank – 4700µF or larger across each servo power input
⚙️ Break-in procedure – Run through full range 50+ times before heavy use
🔧 Implement acceleration limiting – Gradual speed changes reduce stress
💾 Add current monitoring – ACS712 30A sensor for overload detection
⏱️ Duty cycle management – Allow cooling time during extended operation
🛡️ Vibration dampening – Use rubber grommets (included) to reduce vibration
🔄 Regular maintenance – Light lubrication every 6 months for gears
📊 Load calculation – Account for inertia and arm length in torque calculations
🌡️ Thermal shutdown – Implement temperature sensor for protection
🔌 Wire gauge critical – 18 AWG minimum for power, keep runs short
🎯 Individual calibration – Each servo may need ±10° adjustment

🆚 Servo Size Comparison

Feature	SG90 (Micro)	MG90S (Micro)	MG995 (Standard)
Torque @ 6V	2.2kg·cm	2.5kg·cm	11kg·cm (4.4x more!)
Gear Material	Plastic	Metal	Metal (Heavy-duty)
Size	22x12x31mm	23x12x29mm	41x20x43mm (Much larger)
Weight	9g	13.4g	55g (6x heavier)
Stall Current	650mA	900mA	2500mA (2.8x more!)
Speed @ 6V	0.10s/60°	0.09s/60°	0.17s/60° (slower)
Best For	Lightweight robots	Medium-duty projects	Heavy loads, industry
Price	💰 Very low	💰💰 Moderate	💰💰💰 Higher

🎓 Example Heavy-Duty Projects

Project	Why MG995?	Servos Needed
Industrial Robot Arm (5kg payload)	High torque for heavy lifting	4-6x MG995
RC Monster Truck Steering	Handles impact, large tires	1-2x MG995
Large RC Sailboat Rudder	Water resistance, large rudder	1x MG995
Automated Gate Opener	Heavy gate weight	1-2x MG995
Large Camera Jib	Professional camera weight	2-3x MG995
Excavator Scale Model	Multiple heavy joints	6-8x MG995

🔧 Torque Calculation Guide

Load Weight	Arm Length	Required Torque	MG995 Suitable?
500g	10cm	5kg·cm	✅ Yes (45% load)
1kg	10cm	10kg·cm	✅ Yes (91% load)
1kg	5cm	5kg·cm	✅ Yes (45% load)
500g	20cm	10kg·cm	✅ Yes (91% load)
1kg	15cm	15kg·cm	❌ No (exceeds rating)
2kg	10cm	20kg·cm	❌ No (use larger servo)
Formula: Torque (kg·cm) = Weight (kg) × Arm Length (cm)

🛡️ Warranty & Support

✅ Professional-grade MG995 high-torque metal gear servo
✅ Massive 11kg·cm torque @ 6V (10kg·cm @ 4.8V)
✅ Full metal gear train (Steel/Brass alloy)
✅ Double ball bearing output shaft
✅ Standard size form factor (40.7×19.7×42.9mm)
✅ Wide voltage range: 4.8V-7.2V DC
✅ Standard 3-pin servo connector (JR/Futaba compatible)
✅ Complete accessory kit (horns, screws, grommets, eyelets)
✅ Compatible with all servo controllers and Arduino
✅ Industrial-grade construction for continuous operation
✅ Pre-tested before shipping
✅ Technical documentation and mounting diagrams
✅ Fast replacement for defective units
⚠️ CRITICAL WARNINGS: NEVER power from Arduino or USB – use dedicated 5A+ power supply @ 6V. Stall current reaches 2.5A – ensure PSU can handle peak loads. Add large capacitor (4700µF) across power rails. Servo generates significant heat under load – ensure adequate ventilation. For multiple servos, calculate total current: multiply servo count by 2.5A for worst-case. Use heavy-duty wiring (18 AWG minimum). Not waterproof – protect from moisture. Regular maintenance recommended for extended lifespan.

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Description

🤖 MG995 High-Torque Servo Motor – Heavy-Duty Metal Gear Servo for Industrial Applications

✨ Key Highlights

📊 Technical Specifications

🔌 Wire Color & Pin Configuration

📏 PWM Pulse Width to Angle Mapping

🎯 Perfect For

📦 Package Contents

💻 Arduino Code Examples

Basic Heavy-Duty Servo Control

Industrial Robot Arm (Multi-MG995)

Power Monitoring & Safety Cutoff

✅ Advantages of MG995 Servo

⚠️ Critical Usage Notes & Warnings

🔋 Power Supply Requirements (CRITICAL)

🔍 Troubleshooting Guide

💡 Pro Tips for MG995 Usage

🆚 Servo Size Comparison

🎓 Example Heavy-Duty Projects

🔧 Torque Calculation Guide

🛡️ Warranty & Support

Customer Reviews

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