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TNC 355

Term Description

Buy & Sell Used Toolroom Mills with Heidenhain TNC 355 CNC

The Heidenhain TNC 355 is a rugged classic contouring control for 3- and 4-axis universal milling machines from builders like Hermle, Mikron, Kunzmann, and Deckel. Featuring intuitive Klartext conversational keys, it ensures straightforward workshop machining.

Classic Milling Inventory: Browse our inspected Deckel, Mikron, and Hermle milling machines featuring TNC 355 controls.

Lifecycle & Retrofit Advisory: Classic Industrial Control

Controllers from this era offer cast-iron electrical reliability. Operators and buyers should observe three essential operational practices:

  • Backup Battery Maintenance: The 3.6V lithium buffer battery retains all critical NCK/PLC parameters and zero offsets. Crucial: Always replace the battery while the control is powered ON to prevent catastrophic parameter loss!
  • Monitor & Memory Retrofits: Aging CRT cathode ray monitors can be upgraded with drop-in, energy-efficient LED/TFT conversion panels. Mechanical hard drives or floppy units can be updated with rugged solid-state CF/SSD adapters or USB DNC emulators.
  • Spare Parts Availability: Reconditioned modular drives, power supplies, and CPU boards remain widely accessible via certified industrial electronics specialists.

📄 Technical Documentation & PDF Manuals for Heidenhain TNC 355

Download verified technical specifications, brochures, and programming guidelines:

Note for Service Technicians & CNC Programmers: Inquiring about wiring schematics, parameter manuals, or PLC backup archives? Contact our engineering team.

Selling a Milling Machine with Heidenhain TNC 355?

Asset-Trade acquires classic toolroom milling machines equipped with Heidenhain TNC 355 controls. Request a free purchase quote.

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Machine Information
Manufacturer: MIKRON
Model: WD 31 D
Control: CNC > HEIDENHAIN > TNC 355
Year of build: 1994
Location:
Used MIKRON WF 31 D - Universal CNC Milling Machine suitable for tooling, fixture construction, education, and mold making. Technical specifications: CNC Heidenhain TNC 355 Table dimention 900 x 530mm Traverse (X, Y, Z axis) 560x… Learn more

Frequently Asked Questions about used TNC 355

How should the buffer battery on a Heidenhain TNC 355 be replaced?

The 3.6V lithium buffer battery must always be replaced while the control is POWERED ON to prevent wiping machine parameters and datum points.