A flexible segment that has spent the off-season leaning against a wall will not behave like the others when it is refitted. The flex element takes a set, the segment deflects differently, and the symptom appears as uneven clearing on a blade whose specification is otherwise correct. Storage and transport are maintenance activities for these blades, not housekeeping.

What JOMA Segment Storage Has to Protect

Storage protects three things: shape, surfaces and records.

It protects the flex element from taking a set, the working surfaces and mounting features from mechanical damage and corrosion, and the position and measurement history that allows the segment to be rotated or retired on evidence.

Shape is the requirement specific to flexible blades. A rigid edge can be stored in almost any orientation without changing how it works; a flexible segment cannot, because holding it under load allows the flexible element to deform permanently. Flat storage, supported under the body, is the practice that preserves the behaviour the design depends on.

Surface protection follows the same logic as any edge. Segments come off blades that have worked abrasive material and de-icing chemicals, and residue left around the mounting features and insert bases holds moisture for months. Cleaning before storage is what prevents corrosion developing where it matters, and background on the joint between carbide and body is published by TWI.

Storage and Transport Failures and What They Signal

Four failures cover most of what a fleet encounters. Deformation of the flex element appears as poor surface contact rather than as visible damage, and it originates in storage orientation or in lifting by the flexible section. Corrosion along the mounting features appears as pitting and, at the extreme, as loosening when the segment is refitted. Mechanical damage appears as chips or marks on surfaces that were sound at the last measurement.

The fourth failure is record loss, and it is the most expensive because it is invisible until a decision has to be made. A rack of unlabelled segments forces re-measurement of everything before anything can be issued, and in a busy preparation week that measurement is replaced by fitting whatever is closest to hand. The result is a fleet running segments of unknown history and a wear record that cannot be interpreted.

Each failure points to a procedure rather than to an incident. Deformation points to storage orientation and handling, corrosion to the storage environment and cleaning practice, mechanical damage to transport and racking, and record loss to labelling discipline at the point of storage. All four are addressed by a sequence that takes a few minutes per segment at the end of the season.

There is also a commercial failure worth naming. Where a fleet cannot say what it holds or in what condition, it buys against uncertainty rather than against consumption, and the same rack that contains usable segments is treated as empty. Labelling and measurement are what turn storage from a cost centre into an inventory, and the saving involved requires no technical change at all.

Checks Before and After Storage

Two checks bracket the storage period. The pre-storage check records final wear at the fixed reference points, notes deflection behaviour and the condition of the mounting features, and confirms the segment is clean and dry. The pre-season check compares the stored segment with that record and confirms nothing has changed.

The pair matters because it isolates storage as a variable. Where the pre-season deflection check differs from the pre-storage result, the change happened in storage and no specification analysis explains it. Where the two match, the behaviour at the start of the season is known, which is what a rotation plan needs.

Measurement should use the same points and method as the in-season routine, and the results should be recorded against the segment rather than on a sheet that will be filed elsewhere. SENTHAI inspects and archives every batch and works to plus or minus 0.02 mm dimensional tolerances on carbide components, so a segment can be compared with the drawing it was produced to if a dimensional question arises; the record discipline is described on the quality control and traceability page.

Conditions That Change What Storage Has to Cover for Segment Transport and Storage

Storage conditions vary more than fleets assume. An unheated building with a concrete floor holds moisture against anything resting on it, and condensation cycles over a winter develop corrosion on unprotected steel. An outdoor location without cover adds rain and snowmelt, and a location near a salt store adds airborne exposure to the same surfaces the segments work on in service.

Duration matters as well. A segment stored between rotations for a few weeks needs less protection than one held over a full off-season, and spares held for several years need periodic inspection rather than a single check. Labelling the storage date with each segment is what reveals which items have been in the rack longest.

Temperature cycling is the third condition. Where a storage area swings between warm and cold, condensation forms repeatedly on cold surfaces, and the mounting features and joint line are the most vulnerable. Where that pattern is unavoidable, a corrosion inhibitor on exposed steel and joint edges is a cheap intervention compared with replacing a segment two seasons early.

A fourth condition is what the segments were exposed to during the season. Segments that worked routes where abrasives were spread carry more residue into storage than those that worked treated pavement, and residue in the mounting features holds moisture against the surfaces that must seat accurately. Where a fleet knows which routes used abrasives, it can prioritise cleaning effort on those groups rather than treating every segment the same.

Transport Practices Between Sites

Transport causes most deformation and a good share of mechanical damage. Segments should be carried flat, supported under the body and separated so that working faces do not contact each other. Lifting by the flexible element, standing a segment on end or stacking blades on their working edges are the three practices that produce avoidable damage.

Where segments are moved between yards, the load should be restrained so it cannot shift. Damage in transit is difficult to attribute afterwards, which is why a photograph of the load before dispatch is a small habit with a useful outcome if a claim is ever needed. A pair of timber bearers in the vehicle costs little and prevents both ground contact and edge loading during short-notice transfers.

Handling guidance matters here as much as in the workshop, because a flexible segment is heavier than it appears and awkward to grip. Assessment principles for load handling are published by the UK Health and Safety Executive, and general workshop requirements for hand and power tool use are set out in the OSHA occupational safety and health standards.

Racking, Labelling and Inventory Records for Segment Transport and Storage

Racking should support the body rather than the working face, allow air movement and keep segments off the floor. Flat storage is preferable for flexible segments, because it avoids holding the flex element under load between seasons; where vertical storage is unavoidable, the support should engage the body and not the edge.

Labelling should show the specification revision, the segment size, the position it came from, its measured wear and the storage date. A tag that survives a winter is different from a note written on tape, and the information has to be readable when the segment is pulled out a year later. Where a fleet runs more than one arrangement, the label should identify which one the segment belongs to, since segments of the same size are not necessarily interchangeable between arrangements.

The inventory record should mirror the labels so the fleet can see, without walking the rack, what is held, in what condition and for how long. Grade verification for stored segments can be referenced to test methods published by ASTM, and pattern references for dimensions and hole spacing are published through AASHTO standards and DIN.

Pre-Season Fitting Readiness for Segment Transport and Storage

The pre-season check should end with a readiness assessment rather than a condition report. For each group, confirm the mounting face is flat and its holes are within tolerance, the hardware set is complete and matches the specification, the torque value is recorded and the intended arrangement of segments is clear.

Where a fleet holds more segments than it has blades, the assessment should state which segments are intended for which group. Ambiguity at this stage produces a rush decision in the first week of the season, and a rush decision is where the wrong segment goes onto a truck. Replacement segments supplied for that purpose are described in the JOMA style replacement blade range.

Finally, confirm the specification revision for each group. Where a group’s requirement changed during the previous season, stored segments belong to the previous revision, and the fleet should decide deliberately whether they are used, kept as spares or retired. Making that decision in the off-season costs a meeting; making it during the first storm costs a fitting error.