user14154: I'm building an automated Arduino crane where the base material is PVC pipes. The arm consists of the picking mechanism and other sensors, so the total arm might come to about 2-3 Kg (I haven't built it yet). 
Can you please suggest to me an appropriate make/model of servo motor which I can purchase (preferably from India only)? 

user1564: It really depends on where you are placing the servo, how much peak load & at what kind if distance from the servo.
These Corona servos are capable of lifting 2-3Kg at a distance of 2cm from the servo centre. (look at the torque entry on the specification sheet)

14154: <p>I'm building an automated Arduino crane where the base material is PVC pipes. The arm consists of the picking mechanism and other sensors, so the total arm might come to about 2-3 Kg (I haven't built it yet). </p>

<p>Can you please suggest to me an appropriate make/model of servo motor which I can purchase (preferably from India only)? </p>
 1564: <p>It really depends on where you are placing the servo, how much peak load &amp; at what kind if distance from the servo.</p>

<p><a href="http://www.hobbyking.com/hobbyking/store/__10347__Corona_538MG_Digital_Metal_Gear_Servo_7_0kg_53g_0_13sec.html" rel="nofollow">These Corona servos</a> are capable of lifting 2-3Kg at a distance of 2cm from the servo centre. (look at the torque entry on the specification sheet)</p>
