Installed base

The installed base is the asset that makes an industrial less cyclical than the equipment it sells. Machines in service need maintenance, spare parts, consumables, software and eventual upgrades, and that demand comes from the fleet rather than from the customer's capital expenditure decision. When new orders stop, the fleet is still there.

That is why the aftermarket stream carries a higher multiple than equipment revenue. It is higher margin, less capital intensive, more repeatable and easier to forecast. Raising the aftermarket share of revenue is therefore a structural change in the earnings quality of the business, not a mix accident, and it is the strategy most European capital goods companies have pursued deliberately.

The number that tests the claim is the capture rate, sometimes called the attach rate: service revenue per unit in the field, or the proportion of the fleet under a service contract. A large installed base producing little service revenue is either an opportunity worth underwriting or a quiet admission that independent servicers have taken the work.

Two cautions belong in any answer. Equipment is sometimes sold near cost to secure the service annuity behind it, so equipment margin understates the economics of the sale and looking at the two lines separately misleads. And the aftermarket is less cyclical rather than acyclical: in a downturn customers stretch maintenance intervals, defer overhauls and run assets harder before rebuilding them, so service revenue dips too, later and by less.