Kunz Nut Tester
KUNZ Nut Tester | Nut Testing Robot
KUNZ Nut Tester | Bolt Carrier

KUNZ Nut Tester

Key Tasks

Fully automated breakaway torque testing of aircraft wheel and brake nuts
Go/No-Go recognition of unserviceable nuts – eliminates human judgement from the result
All test methods and part numbers programmable – works with KUNZ Wheel & Brake Shop Software
Consistent, human-factor-free results for every nut tested

Overview

The KUNZ Automatic Nut Tester is a fully automated testing device for the breakaway torque testing of aircraft wheel and brake nuts. It provides automatic Go/No-Go recognition of unserviceable nuts, eliminating the influence of human factors from the test result and ensuring consistent, reliable and fully documented outcomes on every test cycle.

The complete variety of testing methods and part numbers can be programmed into the system, and it integrates directly with the KUNZ Wheel & Brake Shop Software for seamless data management and traceability. Work orders can be retrieved via barcode scanner or RFID card, enabling fast, accurate test setup.

Homogeneous, repeatable results – unaffected by operator variability – make the KUNZ Automatic Nut Tester an essential quality assurance tool in any high-throughput wheel and brake shop.

Main Benefits

Fully automated breakaway torque testing – no manual judgement required
Automatic Go/No-Go recognition eliminates human factors from the result
All test methods and part numbers are fully programmable
Works with KUNZ Wheel & Brake Shop Software for full data traceability
Barcode scanner and RFID card support for fast, accurate work order retrieval
Homogeneous, repeatable results across all operators and shifts
Reduces risk of unserviceable nuts being returned to service

Automated Nut Testing – Consistent Results, Every Time

The breakaway torque test for aircraft wheel and brake nuts is a critical quality assurance step in the wheel maintenance process. When performed manually, the result is subject to operator variability – different technicians may apply force differently, leading to inconsistent outcomes and the risk of unserviceable nuts passing undetected.

The KUNZ Automatic Nut Tester eliminates this risk entirely. By automating the test process and applying automatic Go/No-Go recognition, it delivers the same, consistent result regardless of who is operating the machine.

Integrated with KUNZ Wheel & Brake Shop Software

The KUNZ Automatic Nut Tester integrates directly with the KUNZ Wheel & Brake Shop Software, ensuring that all test results are automatically captured, stored and linked to the corresponding work order.

This integration provides complete traceability for every nut tested, supporting quality documentation requirements and making it straightforward to demonstrate compliance during audits or regulatory inspections.

Full Programmability:

All testing methods and part numbers can be programmed into the KUNZ Automatic Nut Tester, covering the complete variety of aircraft wheel and brake nuts used across civil aviation. Programs can be updated and expanded at any time as new aircraft types or hardware variants are introduced.

Product Information

Electrical power requirments

The KUNZ Nut Tester comes with a factury set power requirement of 50/60 Hz, 400V 3-phases, 16 ampere fuse However, we will always need to know your local power requirements in order to check for compatability. In general, your local power requirements will always be available with KUNZ machines in return of extra costs.

Features

Fully automated testing device for the break away test of brake nuts
Safe recognition of unsuitable nuts

Part Numbers

KUNZ Nut Tester: 233.0000

Product Updates

03/2026: The KUNZ Nut Tester has completed development and testing and is now ready for sale.

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