Industrial Robotics & CNC Automation Solution — KUKA 1FK7101-5AY71-1SY3-Z S77 | 1FK7 Series
Where This Product Is Used
The KUKA 1FK7101-5AY71-1SY3-Z S77 servo motor (part number C26D00-100-782KCP2, rated 4.9 kW) is engineered for high-demand industrial environments where precise torque control and dynamic response are non-negotiable. Typical deployment scenarios include:
- KUKA Industrial Robots — axis drive replacement for KR series articulated arms (KR 60, KR 120, KR 210 and variants) in automotive body-in-white welding cells
- CNC Machining Centers — spindle and feed-axis servo drive in 5-axis milling, turning, and grinding machines
- Automated Assembly Lines — precision positioning in press-fit, torque-tightening, and pick-and-place stations
- Injection Molding Machines — clamp and injection axis servo replacement requiring high peak torque at low speed
- Packaging & Palletizing Systems — high-cycle servo axis in delta-robot and gantry configurations
- Semiconductor & Electronics Manufacturing — cleanroom-compatible servo axis for wafer handling and PCB assembly equipment
Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | KUKA / Siemens OEM (1FK7 Series) |
| Part Number | C26D00-100-782KCP2 |
| Siemens Cross-Reference | 1FK7101-5AY71-1SY3-Z |
| Series | 1FK7 (KUKA S77 Designation) |
| Rated Power Output | 4.9 kW |
| Additional Reference | 00-179-161 |
| Motor Type | Permanent Magnet Synchronous Servo Motor (PMSM) |
| Cooling Method | Natural Convection (IC410) |
| Encoder Type | Absolute Encoder (DRIVE-CLiQ compatible) |
| Protection Class | IP64 |
| Insulation Class | F (155°C) |
| Country of Origin | Germany |
| Weight (approx.) | ~600 g (shaft/flange assembly) |
Why Engineers Specify This Model
- DRIVE-CLiQ Interface — plug-and-play integration with Siemens SINAMICS S120 drive family; motor data transmitted automatically, eliminating manual parameterization errors
- High Overload Capacity — 1FK7 series supports up to 3× rated torque for short-cycle acceleration, critical for robotic joint axes
- Compact Flange-Mount Design — IM B5 flange with standardized shaft dimensions enables direct drop-in replacement without mechanical re-engineering
- Absolute Encoder Retention — battery-backed absolute position retained through power-off; eliminates homing cycles on restart, reducing downtime
- Thermal Stability — Class F insulation with integrated PTC thermistor provides real-time winding temperature monitoring for predictive maintenance
- KUKA OEM Validated — factory-specified for KUKA KR series robots; ensures compatibility with KRC4 / KRC5 controller firmware without drive tuning
Complete System Bill of Materials
For a complete servo axis replacement or new installation, the following components are typically required alongside this motor:
- Siemens SINAMICS S120 Motor Module (booksize or chassis format, matched to 4.9 kW rating)
- DRIVE-CLiQ signal cable (pre-assembled, length per installation — Siemens 6FX series)
- Power cable with motor connector (Siemens 6FX or KUKA equivalent, shielded)
- KUKA KRC4 / KRC5 robot controller (if full robot axis replacement)
- Shaft coupling or gearbox (application-dependent; confirm shaft diameter and keyway spec)
- Motor mounting hardware (M6/M8 flange bolts, torque per KUKA installation manual)
Contact our technical team for BOM assistance and compatible part sourcing.
Compliance & Industry Standards
- CE Marking — compliant with EU Machinery Directive 2006/42/EC and Low Voltage Directive 2014/35/EU
- UL / cUL — recognized component per UL 1004 (rotating electrical machines)
- IEC 60034 — rotating electrical machines standard (efficiency, thermal, mechanical)
- ISO 9001:2015 — manufactured under certified quality management system
- RoHS Compliant — restriction of hazardous substances per EU Directive 2011/65/EU
Quality Assurance & Sourcing
All servo motors listed on Konmask.com undergo a structured inspection protocol before dispatch:
- Visual inspection: shaft, flange, connector pins, encoder housing — no cracks, corrosion, or impact damage
- Insulation resistance test: winding-to-frame ≥ 100 MΩ at 500 VDC (Megger test)
- Encoder signal verification: DRIVE-CLiQ handshake confirmed where test bench available
- Rotation check: smooth bearing rotation, no axial play beyond OEM tolerance
- Packaging: anti-static foam, moisture-barrier bag, rigid outer carton with shock indicators
Units are sourced from decommissioned OEM production lines, authorized distributors, and certified industrial surplus channels. Condition is clearly stated on each listing (New / Refurbished / Tested Used).
How to Source This Part
Ready to order or need a quote for multiple units?
- Add to Cart — immediate checkout for single-unit orders
- Request a Quote — email [email protected] for volume pricing, lead time confirmation, or export documentation
- Cross-Reference Inquiry — if your BOM lists a different part number (e.g., Siemens 1FK7101-5AY71-1SY3-Z or KUKA 00-179-161), contact us to confirm compatibility before ordering
- Urgent Requirement — call/WhatsApp +0086 19859288691 for same-day stock confirmation and expedited shipping options
Application-Specific FAQ
Q: Is this motor a direct replacement for the Siemens 1FK7101-5AY71-1SY3-Z?
A: Yes. The KUKA part number C26D00-100-782KCP2 is the OEM-designated equivalent of the Siemens 1FK7101-5AY71-1SY3-Z used in KUKA robot axis drives. Electrical and mechanical specifications are identical.
Q: Which KUKA robot models use this servo motor?
A: This motor is commonly found in KUKA KR series robots including KR 60, KR 120, and KR 210 variants. Verify your robot’s axis assignment and motor mounting configuration against the KUKA spare parts catalog before ordering.
Q: Can this motor be used with a non-KUKA SINAMICS S120 drive?
A: Yes, provided the drive is configured for 1FK7 motor data. The DRIVE-CLiQ interface will auto-identify the motor parameters. Manual parameterization via STARTER or TIA Portal is also supported.
Q: What is the lead time for this part?
A: In-stock units ship within 1–3 business days. For out-of-stock inquiries, contact us for sourcing lead time — typically 5–15 business days depending on origin.
Q: Do you provide a warranty?
A: Yes. All tested and refurbished units carry a 90-day functional warranty. New/surplus units carry a 12-month warranty. Terms available on request.
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