Simmons AXM-430 Axle Measurement System

The Simmons AXM-430 Axle Measurement System automatically inspects railroad axles to determine if the axle is acceptable for use in a wheel set. The AXM-430 measures the diameter, taper, and total indicated runout (TIR) of the cylindrical axle features (e.g., bearing journal, wheel seat, and gear seat), and the location of critical axle features along the length of the axle. The machine also performs the measurements necessary to detect a bent axle.

Railway Axle Measurement System

The AXM-430 can interface with wheel shop automation systems to automatically route the axle to a mounting press, a lathe, or a scrap area based on the measurements that are performed. The machine can also function as a standalone machine and the measurement results can be stored to a database hosted locally on the machine or hosted remotely on the customer’s server.

Machine Specifications

Download the Simmons AXM-430 Axle Measurement System product data sheet — for the full machine specification, please contact the Machine Sales team.


+/- 0.0025 mm


+/- 0.005 mm

Total Indicated Runout

+/- 0.025 mm

Bent Axle Detection

+/- 0.010 mm

Length and Location of Features

+/- 0.102 mm

Electrical Power Requirement

22 kW

Compressed Air

1 scfm @ 80 psi

Maximum Axle Diameter

257 mm

Minimum Axle Diameter

129 mm

Maximum Axle Length

2591 mm

Minimum Axle Length

1524 mm

Maximum Weight

909 Kg

We're here to help

The NSH USA Customer Service Center (CSC) is here to support you and your machine. As the original equipment manufacturer (OEM), we are ideally suited to keep your machine productive and operating safely.

We offer:

OEM Spare & Replacement Parts
New or Upgrade Services
Service & Inspections

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