Yamaha YSM40 motor
Product Introduction – Yamaha YSM40 Motor Assembly (Servo/Stepper Motor)
The YSM40 motor assembly refers to the high-performance servo motors used in the Yamaha YSM40 pick-and-place system, essential for driving axes such as X (gantry), Y (stage), Z (head pickup/lift), and rotary indexing. These motors deliver the speed, precision, and synchronization required for ultra-high-speed SMT production.
Key Features
High-torque servo motors with fast acceleration—supporting placement speeds up to 200,000 CPH when paired with RS heads ([Yamaha Motor Global Site]
Precision motion control with positioning repeatability of ±25 μm (25 μm sigma)&x20;
Optimized for dual- or quad-head operations, enabling simultaneous pickup and placement
Built-in laser position feedback or encoder systems for accurate PCB and component positioning
Designed for minimal impact shock to sensitive components, thanks to Yamaha’s lightweight X-beam and head designs
Performance & Integration
Motors enable extremely fast, high-density 4-beam, 4-head configurations while maintaining a compact machine footprint ([Yamaha Motor Global Site][1])
Fully integrated into Yamaha’s motion control platform, ensuring synchronized coordination with ZS feeders, rotary/multi (MU/RS/FL) heads, and vision systems
Supports continuous operation with real-time nozzle/feeder diagnostics and auto-recovery, reducing downtime , [Yamaha Motor Global Site][1])
Technical Highlights
Servo and axis coordination allow simultaneous control of multiple motions within a 1-meter-wide frame ([Yamaha Motor Global Site][1])
Integrated with Yamaha’s proprietary RS (Revolutionary Speed), MU (Multi-Function), and FL (Flexible) heads—motors drive both rotary arms and linear axes
Designed for high duty-cycle SMT lines, with specs built to sustain ~96% uptime
Typical Applications
High-mix, high-volume SMT production, electronics assembly requiring rapid and accurate placement
PCB sizes ranging from 50 × 50 mm up to 700 × 460 mm ([Yamaha Motor Global Site][1],
Component size coverage from 0201 μm chips up to 45 × 100 mm odd-shaped devices&x20;
Related Accessories – Yamaha YSM40 Motor Assembly
1. Motor Encoder Unit
Provides real-time feedback of motor position and speed for precise motion control. Essential for closed-loop operation.
2. Motor Driver Module
Controls the power, direction, and torque of the servo or stepper motor. Communicates with the main controller.
3. Timing Belt / Drive Belt
Transfers motion from the motor shaft to the linear stage or head using precision-matched rubber belts with teeth.
4. Pulley Set
Mounted on the motor shaft and used with timing belts. Ensures synchronized rotation with minimal slip.
5. Z-axis Linear Rail Assembly
Works with the Z-axis motor to guide the vertical movement of the nozzle head. Ensures smooth and accurate linear motion.
6. Cooling Fan / Heat Sink
Dissipates heat from the motor and driver module. Helps prevent overheating during long production runs.
7. Motor Mounting Bracket
Secures the motor to the frame or moving gantry. Precision-machined to prevent misalignment or vibration.
8. Motor Signal Cable / Encoder Cable
Transmits control signals between the motor and the controller/driver. Includes power and position feedback lines.
9. Z-axis Spring / Shock Absorber
Protects the Z-axis and components from impact during downward motion. Reduces wear on the motor and nozzle.
10. Head Rotation Gear Set
Connects the R-axis motor to the rotating nozzle head. Converts motor torque into controlled angular motion.
Note:
Accessory types may vary depending on the placement head model (RS, MU, FL, etc.)
Original Yamaha parts are recommended to ensure full compatibility and machine safety.
Related Part Numbers – Yamaha YSM40 Motor & Accessories
Motor Assemblies:
KHJ-M9166-00X – X-axis servo motor for YSM40
KHJ-M9167-00X – Y-axis servo motor
KHJ-M9168-00X – Z-axis lift motor
KHJ-M9169-00X – R-axis rotation motor (for nozzle head rotation)
Motor Drivers & Encoders:
KHJ-M9110-00X – Motor driver module for X/Y servo motor
KHJ-M9131-00X – Encoder unit (rotary or linear) for position feedback
Mechanical Accessories:
KHJ-M9170-00X – Timing belt (X/Y transmission)
KHJ-M9171-00X – Pulley set for timing belt system
KHJ-M9172-00X – Z-axis linear rail and carriage assembly
KHJ-M9173-00X – Z-axis shock absorber or spring buffer
KHJ-M9174-00X – Nozzle rotation gear set for R-axis motor
KHJ-M9175-00X – Mounting bracket for motor base or head frame
Cables & Electrical:
KHJ-M9180-00X – Motor signal cable (with shielded encoder line)
KHJ-M9181-00X – Z-axis flexible encoder cable
KHJ-M9182-00X – Power supply cable for driver-to-motor interface
Note:
The suffix “00X” may change depending on revision or machine configuration.
For FL / MU / RS placement heads, specific motor types and part numbers may vary slightly.
Always confirm compatibility with machine serial number or via Yamaha service manual.
FAQ Guide – Yamaha YSM40 Motor System
1. What motors are used in the Yamaha YSM40?
The YSM40 uses high-speed servo motors on the X, Y, Z, and R axes. These motors are specifically designed for ultra-high-speed pick-and-place operations with precision control and feedback.
2. What does each motor control?
X-axis motor – Moves the gantry side-to-side
Y-axis motor – Controls the back-and-forth movement of the head
Z-axis motor – Controls vertical nozzle motion
R-axis motor – Rotates the nozzle to align components
3. What makes these motors special?
YSM40 motors are:
High-torque and compact
Equipped with integrated or external encoders for closed-loop control
Optimized for fast acceleration/deceleration to achieve up to 200,000 CPH
4. What are the common failure symptoms of a motor?
Axis not moving or shaking
Placement head misalignment
Alarm codes such as "motor overcurrent," "servo error," or "encoder feedback lost"
5. Can the motors be replaced individually?
Yes. All YSM40 motors are modular and can be individually replaced. It is important to use the correct part number and follow calibration procedures after replacement.
6. What accessories are typically needed with a motor replacement?
Encoder cable
Mounting bracket or base
Cooling fan or heat sink
Timing belt and pulley (if worn)
Driver module (if damaged)
7. How do I identify the correct part number for a motor?
Each motor has a unique KHJ-M91xx-00X part number. You can check:
The Yamaha service manual
The part label on the motor
Your machine's configuration sheet
8. What precautions should be taken during replacement?
Power off and discharge the system before replacement
Avoid touching encoder connectors with bare hands (static damage)
Ensure proper alignment when installing the new motor
Run a test placement and calibration after replacement
9. How often should the motor be maintained or replaced?
Yamaha motors are designed for long life, but they should be:
Visually inspected monthly
Lubricated/cleaned if exposed to dust or flux
Replaced after 20,000+ operating hours if efficiency drops or vibration increases
10. Where can I get technical documentation or support?
Yamaha official manuals
Authorized SMT service providers
I can help you locate PDF guides, exploded views, or part diagrams upon request
Physical warehouse,
fast delivery
after-sales support
providing door-to-door transportation services
price advantages,
offering a full range of SMT dip equipment and accessories
We can do for you:
1. We provide fulL SMT solution for you
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4. We have wealthy experience on SMT factory setup
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Contact:
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Email: info@smtlinemachine.com
www.smtlinemachine.com
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