In demanding automation environments, robots from Stäubli are known for precision, cleanroom reliability, and exceptionally long service life.
From TX2 articulated robots and RX160 heavy-duty systems to compact TS2 SCARA platforms, these machines are built for continuous industrial production rather than short-term deployment.
Keeping them running at full accuracy depends on correct spare parts, preventive maintenance, and fast fault diagnosis across controllers, motion systems, cables, and safety electronics.
Stäublis long-term parts availabilitytypically 15 years or moremeans even older CS7 and CS8 controller systems can remain fully operational when supported with the right maintenance strategy.
This index is designed as a practical reference for maintenance engineers, repair teams, and spare-parts buyerswho need to quickly identify critical components and common replacement areas.
Why Staubli Spare Parts Matter
Stable robot uptime is rarely about a single failure.
More often, it is the result of gradual wear across cables, seals, power electronics, and feedback devices.
Using verified Stäubli-specification spare parts helps ensure:
- Motion accuracy and repeatability remain within factory tolerance
- Electrical safety and compliance are preserved
- Controllers communicate reliably with drives and sensors
- Unexpected production downtime is minimized
Non-OEM components may appear compatible, but in practice they often introduce:
- Encoder signal instability
- Communication faults between controller and drive
- Reduced safety integrity in emergency circuits
For high-duty production lines, correct parts selection directly affects throughput and weld or handling quality.
Commonly Replaced Mechanical Components
Robot Wiring, Harness & Cables
- D24274202A - Main robot cable (TX60 / TX90 CS8 controller series)
- Axis motor cables (robot-specific part numbers vary by series)
- Encoder signal cables
- Power distribution harnesses
Wear & Protection Parts
- Seals & protective bellows - axis protective covers
- Bearing kits - wrist and elbow axis bearings
- Gearbox seal kits - used in harmonic drives and reducers
- Lubrication kits for joint bearings and gearboxes
(These mechanical components typically vary by robot model consult the spare parts catalog for series-specific numbers.)
Core Controller & Communication Components
When a Stäubli robot fails to boot or loses coordination between axes, the root cause is frequently found inside the controller electronics rather than the mechanical structure.
Commonly serviced modules include:
Logic and synchronization boards
- MI-6 communication board (10332-12405) C central to multi-axis coordination
I/O and field integration
- I/O VME board (10332-00800) C handles external device communication
Legacy controller support
- PC Board 040 (10332-00712) C still widely used in older CS-series systems
Operator interface hardware
- Manual Control III teach pendant (10332-11000) C one of the most frequently replaced parts due to physical wear
Power and drive electronics
- Controller power supply units
- Drive interface and feedback amplifier boards
- Safety interface circuitry
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Service tip:
Before replacing logic boards, always confirm stable controller power output, since voltage instability is a common hidden cause of boot or communication faults.
Mechanical Wear Parts, Sealing, and Cabling
Mechanical reliability in Stäubli robots is closely tied to joint sealing, lubrication quality, and internal cable conditionespecially in wash-down, cleanroom, or welding environments.
Robot cables and harnesses
- D24274202A main robot cable for TX60 / TX90 CS8 systems
- Axis motor power cables
- Encoder feedback cables
- Internal power distribution harnesses
Wear-protection components
- Axis seals and protective bellows
- Wrist and elbow bearing kits
- Harmonic-drive gearbox seal kits
- Joint lubrication service kits
Maintaining proper lubrication and seal integrity is one of the most effective ways to avoid gearbox failure, which is typically the highest-cost mechanical repair.
Safety Systems, Sensors, and Motion Feedback
Industrial safety compliance depends on fully functional electrical and sensing hardware, not only software configuration.
Safety-critical hardware
- Emergency-stop switches and contactors
- Safety relay and interlock boards
- Fieldbus safety communication modules
- Controller cooling fans and filtration assemblies
Position feedback and sensing
- High-resolution axis encoders
- Absolute feedback devices that prevent reference loss after power-off
- Limit and proximity sensors
Reliable encoder feedback ensures the robot returns to precise position immediately after restart, preventing production interruption.
Signs Spare Parts May Need Replacement
Preventive maintenance is usually triggered by early warning symptoms such as:
- Repeated axis alarms or loss of reference position
- Increasing vibration, torque load, or motion deviation
- Cracked cable insulation or intermittent signals
- Controller startup failure or unstable communication
- Overheating or visible damage on electronic boards
Keeping critical spare parts in stockis often the fastest way to reduce unexpected downtime in automated production cells.
Common Stäubli Robot Series in Service
Spare-parts planning is typically organized by robot platform:
- TX60 / TX90 C compact to mid-payload industrial robots
- RX160 / RX160L C higher payload articulated robots
- TS2-40 / TS2-100 C high-speed SCARA automation systems
Correct replacement always requires confirming:
robot model + controller generation + exact part number
Related Robot Maintenance Indexes
For complete service coverage across the robot system lifecycle, see also:
- Robot controller repair parts
- Communication and fieldbus boards
- Power supply modules
- Axis motor and encoder cables
- Safety relays and protection circuits
Together, these references form a full maintenance knowledge structure for long-term robot operation.
Multi-Brand Spare Parts Comparison
Facilities operating mixed robot fleets often compare spare-parts ecosystems across brands, including:
- Universal Robots
- Panasonic welding robots
- Stäubli industrial robots
- Kawasaki automation systems
Cross-brand visibility helps maintenance teams standardize spare-parts stocking and reduce repair response time.
Related Spare Parts & Maintenance Indexes
- Robot Controller Repair Parts Index
- Robot Communication Boards Index
- Robot Power Supply Units Index
- Robot Axis Harness & Motor Cables Index
- Robot Safety Boards & Relays Index
These interconnected indexes help you build a full Staubli service and spare parts strategy.
Spare Parts Index by Brand
- Universal Robots Part Number Index
- Panasonic Robot Spare Parts Index
- Staubli Robot Spare Parts Index
- Kawasaki Robot Spare Parts Index
Related Category Recommendations
FAQ - Stäubli Maintenance & Procurement
Q1: How can the correct spare part be confirmed?
A: Always verify the robot serial number and controller version.Many components differ between CS8, CS8C, and newer controller generations.
Q2: Can I use third-party cables for Stäubli robots?
A: They may function electrically, but incorrect impedance or shielding can cause encoder instability or axis reference errors, especially at high speed.
Q3: Are legacy controller parts still available?
A: Yes. Long-term availability policies mean many CS7/CS8 components remain obtainable, though keeping local backup inventory is strongly recommended.