2. User: We want a higher quality assembly system. Higher quality
      The YK-TW offers a repeated positioning accuracy of +/-0.01 mm* (XY axes).
                This is a much higher repeated positioning accuracy than that offered by a parallel-link robot. This was accomplished by optimizing the robot's weight balance through an extensive re-design of its internal construction. The lightweight yet highly rigid arm has also been fitted with optimally tuned motors to enable high accuracy positioning.
                *Applies to the YK350TW

        3. User: We need to reduce our tact times. Higher productivity
        The YK-TW offers a standard cycle time of 0.29 secs.*※
                The Y-axis (arm 2) passes beneath the X-axis (arm 1) and it has a horizontal articulated structure, allowing it to move along the optimal path between points. Moreover, the optimized weight balance of the internal components reduces the cycle time by 36 % as compared to previous models.
                *Applies to the YK500TW

                The standard cycle time for moving a 1-kg load horizontally 300 mm and up/down 25 mm is shortened by approx. 36 % compared to previous YAMAHA models.

        4. User: We need to move heavy workpieces at high speeds. Suitable for a wide range of applications
        The YK-TW can handle workpieces weighing up to 5 kg.
                 Handles loads up to 5 kg. Also accommodates arm-end tools which tend to be heavy, making it highly adaptable to various applications.

        5. User: We want to reduce the height of our equipment. Smaller equipment footprint
        The YK-TW offers both a low height and a small footprint.
                The YK-TW height is only 392 mm. This compact size enables more freedom in the equipment layout design.

        6. User: Parallel-link robots require large frames which complicate installation… Easy installation
        The YK-TW has a total height of only 392 mm, and weighs only 27 kg*.Due to its low inertia, a sturdy frame is not required.
                *Applies to the YK500TW

                An optional dedicated installation frame is available for the YK-TW. For details, contact a YAMAHA sales representative.

        7. Preparing an installation stand is too much bother… A dedicated stand is available.
         Setup can be simplified
                As an option, we provide a dedicated installation stand for the YK-TW.* There's no need to calculate strength, so setup can be simplified.
                *Contact Yamaha for details on dimensions and price.

        8. User: Operating our equipment in stringent environments is worrisome…Environment resistant
        The YK-TW features the same type of resolver as those used in hybrid automobiles and aircraft.
                This resolver is a magnetic position sensor. It features a simple construction with no electronic or optical parts, making it far less susceptible to failure than conventional optical encoders. It is this superior environment resistance and low failure rate that makes it reliable enough for use in many fields such as hybrid automobiles and aircraft, etc., where reliability is essential.

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Specifications

				YK350TW (501 KB)	YK500TW (497 KB)
Axis specifications	X-axis	Arm length		175mm	250mm
		Rotation angle		+/−225°
	Y-axis	Arm length		175mm	250mm
		Rotation angle		+/−225°
	Z-axis	Stroke		130mm
	R-axis	Rotation angle		+/−720°
AC servo motor output	X-axis / Y-axis / Z-axis / R-axis			750W / 400W / 200W / 105W
Deceleration mechanism	X-axis / Y-axis / Z-axis / R-axis	Speed reducer		Harmonic drive / Harmonic drive / Ball screw / Belt speed reduction
		Transmission method	Motor to speed reducer	Timing belt / Direct-coupled / Timing belt / Timing belt
			Speed reducer to output	Direct-coupled / Direct-coupled / Direct-coupled / Timing belt
Repeatability*	XY axes			+/−0.01 mm	+/−0.015 mm
	Z-axis			+/−0.01 mm
	R-axis			+/−0.01°
Maximum speed	XY axes synthesis			5.6 m/sec	6.8 m/sec
	Z-axis			1.5 m/sec
	R-axis			3000°/sec
Maximum payload**				5 kg	5 kg (RCX340)
Standard cycle time***				0.32 sec (RCX340)	0.29 sec
R-axis tolerable moment of inertia****		Rated		0.005 kg*sq.m
		Maximum		0.05 kg*sq.m
User wirling				0.15 sq×8 wires
User tubing (Outer diameter)				φ6×2
Travel limit				1.Soft limit 2.Mechanical stopper(X,Y,Z axis)
Robot cable length				Standard:3.5m Option:5m, 10m
Weight				26kg	27kg

*In constant ambient temperature.
**Tool flange specifications (optional) apply to the YK350TW (4kg) and the YK500TW (4kg)
***When moving a 1kg load back and forth 30 mm horizontally and 25 mm vertically (rough positioning arch motion).
****May need to limit parameters (such as acceleration) according to the moment of inertia being used.
      *The recommended positional relationship regarding the center of the load weight (center of gravity position) and the offset amount from the R-axis center are shown in the graph below.

Ordering method

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Catalog
-YK-TW Catalog (3.4 MB)
-YK350TW (501 KB)
-YK500TW (497 KB)