Programmable Tank Cleaning Machine
A programmable tank cleaning machine runs a pre-set wash pattern — nozzle rotation speed, arc and cycle time — instead of a single fixed jet path, so the same unit can be tuned to a small chemical tank one voyage and a large crude tank the next without swapping equipment.
What to check on a Programmable Tank Cleaning Machine.
144 models from TS Marine in Programmable Tank Cleaning Machine. Below: the full model list.
What defines this type
A programmable tank cleaning machine differs from a fixed-pattern (single-nozzle, single-arc) tank cleaning machine in that the wash cycle itself is adjustable: rotation speed in both planes, arc of coverage and cycle duration are set through a deck-mounted or remote programmer rather than being fixed by the machine's gearing. That matters because tank size, cargo residue and wash medium change from voyage to voyage; a machine locked to one pattern either over-washes a small tank, wasting time and water, or under-washes a large one, leaving residue that contaminates the next cargo. Programmable units are lowered through the tank cleaning hatch on a hose or fitted as a semi-permanent deck installation, and are driven either by the wash water itself (turbine-driven) or by a separate hydraulic supply.
Legend
- wash water supply
- mounting flange
- tank deck head
- machine body
- indexing gear (sets wash arc)
- water-driven turbine
- nozzle head
- twin jet nozzles
- programmed wash pattern
Main components
- Drive unit — turbine or hydraulic motor and gearbox converting supply flow into the two-plane rotation of the nozzle head.
- Programmer / controller — sets rotation speed, arc limits and total cycle time, either mechanically indexed or electronically set.
- Nozzle head — single or twin nozzle, sized for the required throw distance and flow rate.
- Lowering and support arrangement — wire, hose or fixed deck stand positioning the machine through the tank hatch at the correct depth.
- Supply hose or fixed pipework — delivers water, hot seawater or chemical cleaning medium at the required pressure.
Selection / sizing
The decisive figures are throw distance against the tank's largest dimension, required pressure and flow at the nozzle, and material compatibility with the cargo range the tank actually carries — crude and product tankers can generally use standard steel and bronze wetted parts, while chemical tankers need stainless steel and PTFE-compatible seals resistant to the specific cargoes carried. Portable units lowered on a hose suit tankers washing between different cargoes at anchor or in port; fixed installations on a deck stand suit vessels running a repeated wash routine, such as crude oil washing during discharge.
Regulations / Class
Fixed crude oil washing systems on applicable tankers fall under MARPOL Annex I, which sets out when COW must be used and how it is documented in the Oil Record Book. ISGOTT provides the accepted industry guidance on tank cleaning and gas freeing procedures, including atmosphere testing before and during cleaning. Because the machine operates inside what is normally a flammable or oxygen-deficient atmosphere, the unit and its drive must carry certification suited to that hazardous zone, and class surveys a fixed installation's function as part of the tanker's cargo system survey.
Read the full guide
Typical faults
- Bearing or seal wear in the drive unit — reduced rotation speed and pressure at the nozzle, leaving an uneven wash pattern and missed residue in the tank corners.
- Blocked or worn nozzle — distorted jet shape, localised over-washing in one area and under-washing elsewhere.
- Programmer failure — the machine reverts to a single fixed pattern or stalls mid-cycle, extending wash time and risking incomplete coverage.
- Damaged lowering wire or hose — the machine can drop inside the tank, creating an entry hazard for anyone sent in afterward to retrieve it.
What to look for in a supplier
- Wetted-part materials matched to the actual cargo range, not just a generic stainless-steel spec sheet.
- Hazardous-area certification appropriate to the tank types the machine will enter.
- Throw-distance performance data tested against tank dimensions close to the vessel's own, not a theoretical maximum.
- A manual override or simple fixed-pattern fallback if the programmer fails mid-voyage.
- Spare parts availability for nozzles, seals and drive bearings through the ship's actual ports of call.
Always confirm tank atmosphere readings before and during a wash cycle — a machine that stalls or drops inside the tank turns a routine cleaning job into a confined-space entry.
Models in this type.
The best-documented model of each manufacturer first, then the next — 100 of 144 models in Programmable Tank Cleaning Machine. Every row links to full specifications, documents and service notes.
Manufacturers.
All 6 manufacturers with models of Programmable Tank Cleaning Machine. Names with a manufacturer page open it; the others open a search across the full library.
All manufacturersAlso in Tank Cleaning Equipment.
The other equipment types in this category.
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