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Orbit Type SCARA
350~500mm
Reach
4kg to 5kg
Payload
Compact
Efficient Design
Underpass
Motion
Features
01 User: We want a smaller equipment footprint. Layout design freedom
The YK-TW can move anywhere through the full 1000 mm* downward range.
Featuring a ceiling-mount configuration with a wide arm rotation angle, the
YK-TW can access any point within the full 1000 mm downward range. This eliminates all
motion-related restrictions with regard to pallet and conveyor placement operations, while
dramatically reducing the equipment footprint.
* Applies to the YK500TW
Underpass motionOptimize use of the space right below the main unit
Improvement of productivity
The standard cycle time for moving 1-kg load horizontally 300 mm and up/down 25
mm is shortened by approximately 36 % compared to existing YAMAHA models.
* Measurement may vary depending on conditions.
02 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
03 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.
04 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.
05 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.
06 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.
07 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.
08 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.
Specifications
Clicking a desired model name allows you to see its detailed catalog.
| YK350TW | YK500TW | ||||
|---|---|---|---|---|---|
| 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 | ||||
| RepeatabilityNote1 | XY axes | +/−0.01mm | +/−0.015mm | ||
| Z-axis | +/−0.01mm | ||||
| R-axis | +/−0.01° | ||||
| Maximum speed | XY axes synthesis | 5.6m/sec | 6.8m/sec | ||
| Z-axis | 1.5m/sec | ||||
| R-axis | 3000°/sec | ||||
| Maximum payloadNote2 | 5kg | 5kg(RCX340) / 4kg(RCX240) | |||
| Standard cycle timeNote3 | 0.32sec(RCX340) / 0.38sec(RCX240) | 0.29sec | |||
| R-axis tolerable moment of inertiaNote4 | Rated | 0.005kgm2 | |||
| Maximum | 0.05kgm2 | ||||
| User wirling | 0.15sq×8wires | ||||
| 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 | |||
Note1 In constant ambient temperature.
Note2 Tool flange specifications (optional) apply to the YK350TW (4kg) and the YK500TW (RCX340:4kg /
RCX240:3kg)
Note3 When moving a 1kg load back and forth 30 mm horizontally and 25 mm vertically (rough positioning
arch motion).
Note4 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.