FUJI SAM6871 XPF Z-axis motor
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FUJI SAM6871 – XPF Z-Axis Motor
Overview
The FUJI SAM6871 is a Z-axis servo motor designed for use in FUJI
XPF series high-speed placement machines. It drives the vertical
(Z-axis) motion of the placement head, enabling accurate
pick-and-place operation of electronic components.
Key Features
High-precision vertical control for component placement heads
High-speed response suitable for dynamic Z-axis adjustments
Integrated with FUJI servo control system for real-time feedback
Durable and reliable design for continuous SMT production
environments
Built-in encoder for precise position detection
Applications
Designed for FUJI XPF series machines (e.g., XPF, XPF-L, XPF-W)
Used in Z-axis motion of the placement head (e.g., H01, H04, H08)
Suitable for high-speed, high-accuracy pick-and-place operations
Technical Specifications (Typical)
| Parameter | Specification |
| Part Number | SAM6871 |
| Motor Type | AC Servo Motor |
| Axis Controlled | Z-axis (Vertical) |
| Encoder Type | Incremental or Absolute (FUJI standard) |
| Rated Voltage | 200–240V AC (machine dependent) |
| Communication Protocol | Proprietary FUJI servo interface |
| Mounting Type | Direct mount to placement head assembly |
Benefits
Ensures precise component height control during placement
Smooth and accurate Z-lift/lower operation even at high speeds
Reduces placement errors due to height misalignment
Designed for long operational life and low maintenance
Related Components
| Component | Part Number | Description |
| Z-Axis Servo Motor | SAM6871 | Drives vertical head motion |
| Motor Driver Board | XK04121 / XK04032 | Controls and powers the servo motor |
| Encoder Feedback Cable | XH01340 / XH01270 | Sends position signals back to controller |
| Motor Mounting Bracket | XM02560 | Secures motor to placement head frame |
| Z-Axis Shaft/Assembly | XM02820 | Mechanical linkage for vertical motion |
Related Accessories – FUJI SAM6871 XPF Z-Axis Motor
| Component | Part Number (Example) | Description |
| Z-Axis Servo Motor Driver Board | XK04032 / XK04121 | Drives and controls the Z-axis motor; provides motion signals and
power |
| Motor Encoder Feedback Cable | XH01270 / XH01340 | Transmits position data from the encoder to the main controller |
| Power Cable / Harness | XH01120 / XH01091 | Supplies power from driver to Z-axis motor |
| Z-Axis Ball Screw Assembly | XM02820 | Converts rotary motor motion into precise vertical linear movement |
| Motor Mounting Bracket | XM02560 / XM02380 | Mechanical support for securing the motor to the Z-axis frame |
| Z-Axis Shaft or Guide Rail | XM02711 / XM02450 | Provides vertical movement guidance and structural support |
| Z-Axis Pulley / Coupler | XM02190 | Transfers motor torque to the screw or shaft |
| Head Assembly Housing Cover | XM02930 / XM02671 | Protective housing that covers motor and axis components |
| Position Sensor / Limit Switch | XM03045 / XM03110 | Detects Z-axis range limits and prevents overtravel |
Optional Maintenance Accessories
| Accessory | Function |
| Motor Alignment Jig | Assists with accurate motor mounting and calibration |
| Motor Cooling Fan (if used) | Keeps the motor assembly within safe temperature range |
| Lubrication Kit | Used for ball screw and shaft maintenance |
| Vibration Damper Pad | Reduces vibration and improves placement accuracy |
These components ensure optimal function of the SAM6871 Z-axis
motor in FUJI XPF machines and may vary slightly depending on the
head type (e.g., H01, H04, H08, or multi-head configuration).
FUJI SAM6871 Z-Axis Motor – Related Part Numbers
| Component Description | Part Number | Remarks |
| Z-Axis AC Servo Motor | SAM6871 | Main vertical axis motor for FUJI XPF head |
| Z-Axis Motor Driver Board | XK04032 | Controls motor motion (used in M3II or XPF system) |
| Alternate Driver Board | XK04121 | May be used in specific XPF configurations |
| Encoder Feedback Cable | XH01270 | Connects motor encoder to vision/control PCB |
| Power Supply Cable | XH01120 | Supplies power from board to motor |
| Ball Screw Assembly (Z-axis mechanical drive) | XM02820 | Converts motor torque into vertical motion |
| Motor Mounting Bracket | XM02560 | Mounts motor to head chassis |
| Z-Axis Linear Guide / Shaft | XM02711 | Provides linear motion guidance for vertical movement |
| Pulley / Shaft Coupler | XM02190 | Links motor shaft to ball screw or drive assembly |
| Limit Sensor for Z-Axis | XM03045 | Prevents overtravel by detecting stroke limits |
| Z-Axis Cooling Fan | XH01431 | Optional fan for motor cooling, used in high-temp environments |
Tip: Actual part numbers may vary slightly based on the exact head
version (e.g., H01, H04S, H08) and XPF generation (XPF, XPF-L,
XPF-W). Always confirm compatibility via FUJI’s parts catalog or
your machine’s BOM.
FAQ Guide – FUJI SAM6871 XPF Z-Axis Motor
General Information
Q1: What is the FUJI SAM6871 motor used for?
A: The SAM6871 is an AC servo motor used to control the Z-axis
(vertical movement) of the placement head in FUJI XPF series SMT
machines. It enables precise pick-and-place motions by adjusting
the head’s height during component mounting.
Q2: Which FUJI machines use the SAM6871 motor?
A: The SAM6871 is designed for use in the FUJI XPF series,
including:
XPF, XPF-L, and XPF-W models
Compatible with H01, H04, H08, or multi-head configurations
depending on system
Functionality & Operation
Q3: What does the Z-axis motor control?
A:
Controls the up/down movement of the nozzle or tool unit
Engages during pick-up and placement to lower or raise the head
Coordinates with X/Y motors for smooth, multi-axis component
mounting
Q4: How is it controlled?
A:
The SAM6871 motor is driven by a servo driver board (e.g.,
XK04032), which receives commands from the machine’s main
controller and provides closed-loop feedback via the encoder built
into the motor.
Maintenance & Troubleshooting
Q5: What routine maintenance is required?
A:
Inspect power and encoder cables regularly (XH01120, XH01270)
Clean motor area of dust and debris
Check for abnormal noise or vibration during operation
Verify Z-axis alignment and stroke limits
Q6: What are signs of motor failure?
| Symptom | Possible Cause | Recommended Action |
| Motor does not move | Driver board failure or cable disconnection | Check connections; test or replace driver |
| Nozzle does not pick/place | Z-axis movement obstructed or misaligned | Inspect ball screw, bracket, or guide shaft |
| Z-axis overrun alarm | Faulty limit sensor or encoder error | Test sensors; recalibrate Z-axis encoder |
| Excessive vibration or noise | Worn-out motor bearings or misalignment | Replace motor or re-align drive shaft |
Related Components
| Component | Part Number (Example) | Function |
| Z-Axis Servo Motor | SAM6871 | Drives vertical motion of placement head |
| Motor Driver Board | XK04032 / XK04121 | Controls motor behavior |
| Encoder Feedback Cable | XH01270 | Sends position data to controller |
| Power Cable | XH01120 | Delivers power to motor |
| Z-Axis Ball Screw Assembly | XM02820 | Converts motor rotation into vertical motion |
| Mounting Bracket | XM02560 | Attaches motor to head assembly |
| Limit Switch / Sensor | XM03045 | Prevents overtravel of Z-axis movement |
Best Practices
Always power down the machine before inspecting or replacing the
motor
Use original FUJI parts for full compatibility
Periodically check for software updates related to servo control
Keep a spare motor or driver board in stock for rapid replacement
Log any Z-axis faults to monitor wear trends or instability over
time
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