Optional Modules

LVA-Load Vector Analysis

LVA Module measures and displays the resultant force magnitude and its vector direction including in-plane loading and its vector pierce point position

LVA Module showing the resultant force magnitude and its vector direction including in-plane loading and its vector pierce point

Electric Conductivity Free-length Measurement

The electric conductivity freelength measurement module uses electric conductivity to measure the springs freelength

Standard testers use an algorithm to detect a load (force) change relative to the testers background noise levels. This method is relatively slow and is less accurate for springs with a low spring rate. magnetism in the spring or the testers plattens lead to errors using this conventional method

In order to improve the accuracy of this method, the free length check is performed at slower tester crosshead speeds resulting in longer test times

The electric conductivity free length method only requires a spring that conducts a current, and soon as this current is detected, the tester records the freelength. This method can be performed a lot faster than the standard force methods used on most testers

CT Series tester fitted with the electric conductivity module

Buckling Pin Set

Long Slender Springs buckle and jump out of the tester plattens during a compression test. For these springs, the spring has to have a rod placed through its inner diameter to prevent the spring buckling. This rod must be thread through a hole in the spring testers upper platen during the compression test. The hole diameter in the spring testers upper platen must be smaller than the springs outer diameter but larger than the rod diameter.

This module consists of 4 rod sizes (different rod diameters), each rod with a matching sleeve. The relevant sleeve is attached to the tester upper platen allowing for the rod to be passed through its center hole

Sleeve attached to upper platen, with rod thread through both the sleeve and the spring

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