What to Watch for When Buying a Used Concrete Pump?

Short answer: On a concrete pump, the fastest-wearing parts are the spectacle plate, cutting ring and S-valve; their condition determines pumping efficiency and cost. On a mobile pump the boom is a critical safety item for welds/cracks; hydraulic pressure, cylinders and the washout system are tested. On a boom pump, a periodic inspection record is essential.

This guide answers: How many meters of boom pump are needed? · How are wear parts checked? · How is boom safety assessed? · Which part is replaced most?

Pumping unit and wear parts

Wear on the spectacle plate and cutting ring causes pressure loss; these are frequently replaced consumables. S-valve movement and cylinder sealing are checked.

Boom and safety (mobile pump)

Cracks/weld marks at the boom joints are a serious safety risk; opening-closing should be smooth and the stabilizer feet must not leak. Is the periodic inspection report up to date?

Hydraulics and washout

Main hydraulic pressure, oil condition and the washout/cleaning system must work; a history of blockages accelerates pipe and valve wear.

Frequently asked questions

How many meters of boom pump are needed? Based on pour height and reach; a stationary (line) pump has no boom.

Which part is replaced most? The spectacle plate, cutting ring and pumping cylinders are the most frequently renewed parts.

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Last updated: 07.07.2026 · Based on field practice and platform data; it does not replace a technical inspection.