PERSKE KNS 51.14-2D Spindle Motor | Replacement, Equivalent & Selection Guide
The PERSKE KNS 51.14-2D is a high-frequency spindle motor engineered for precision CNC routing, milling, and woodworking applications. This page provides full technical specifications, compatible replacement options, and a structured selection guide to help engineers and procurement teams make confident sourcing decisions.
Technical Specifications
| Manufacturer | PERSKE |
| Model / SKU | KNS 51.14-2D |
| Product Type | High-Frequency Spindle Motor |
| Series | KNS 51 |
| Cooling Method | Air-cooled |
| Pole Count | 2-pole |
| Weight | 1.47 kg |
| Origin | Germany |
Note: Full electrical ratings (power, voltage, speed, frequency) should be confirmed from the original nameplate or PERSKE datasheet prior to ordering.
Compatible Replacement & Equivalent Models
When the original KNS 51.14-2D is unavailable or discontinued, the following models may serve as functional equivalents. Always verify mechanical dimensions, shaft interface, and electrical ratings before substitution.
- PERSKE KNS 51.14-2E — Updated revision of the same series; check connector pinout compatibility
- PERSKE VS 30.06-2 — Alternative PERSKE air-cooled spindle for similar power class
- HSD ES919 — Italian-made equivalent for CNC routing; confirm flange dimensions
- Teknomotor ATC series — Compatible for ISO 20 / HSK-E25 tooling systems
- Custom OEM equivalents — Contact Konmask for cross-reference assistance
Why Choose the Original Model
- ✔ PERSKE German engineering — proven reliability in industrial CNC environments
- ✔ Precision-balanced rotor for low vibration at high RPM
- ✔ Direct drop-in fit for machines originally specified with KNS 51.14-2D
- ✔ Minimizes re-commissioning time vs. third-party alternatives
- ✔ Full traceability and OEM documentation available
Typical Applications
- CNC wood routing and panel processing
- Furniture manufacturing and cabinet making
- Composite and plastic milling
- Sign-making and engraving machines
- Nesting CNC machining centers
System Compatibility
The KNS 51.14-2D is designed for integration with high-frequency inverter drives. Confirm the following before installation:
- Drive output frequency range (typically 200–400 Hz for PERSKE spindles)
- Spindle interface: flange type, shaft diameter, and tooling system (ISO / HSK)
- Cooling air supply pressure and flow rate
- Control signal compatibility (speed reference: analog 0–10 V or fieldbus)
Selection Guide
Use the criteria below to confirm the KNS 51.14-2D is the right choice — or to identify the best alternative:
- Power class: Match rated kW to your machine’s spindle drive capacity
- Speed range: Verify max RPM against your cutting strategy
- Tooling interface: ISO 20, HSK-E25, or ER collet — confirm before ordering
- Cooling: Air-cooled models require clean, dry compressed air supply
- Pole count: 2-pole (2D suffix) — affects speed/frequency relationship
- Mounting: Confirm flange dimensions match your machine’s spindle housing
Quality Assurance & Sourcing
All units sourced through Konmask.com undergo the following process:
- Visual and dimensional inspection upon receipt
- Cross-check against OEM part numbers and revision history
- Secure anti-static packaging for international shipment
- Certificate of conformity available on request
We supply both genuine OEM units and verified equivalent alternatives, clearly labeled to support your procurement compliance requirements.
How to Order
- Confirm your required model: PERSKE KNS 51.14-2D (or specify your preferred equivalent)
- Provide machine make/model and current spindle drive details if requesting a cross-reference
- Contact us via email or phone for a formal quotation
- Lead time and stock availability confirmed within 1 business day
📧 support@konmask.com | 📞 +0086 19859288691
Replacement & Compatibility FAQ
Q: Can I replace the KNS 51.14-2D with a water-cooled spindle?
A: Mechanically possible in some cases, but requires modification to the machine’s cooling circuit. Not recommended as a direct drop-in.
Q: Is the KNS 51.14-2D still in production?
A: PERSKE product availability varies by region. Contact Konmask to check current stock and lead time.
Q: What is the difference between KNS 51.14-2D and KNS 51.14-2E?
A: The suffix letter typically denotes a design revision. Electrical ratings are usually identical; connector and bearing specifications may differ. Confirm before substitution.
Q: Do you supply with warranty?
A: Yes. Warranty terms are provided at time of quotation and vary by unit condition (new, refurbished, or equivalent).
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Contact: support@konmask.com | +0086 19859288691
