What manual degreasing can and cannot do
Manual degreasing works by softening the deposit and lifting it mechanically. A brush breaks the surface crust; a solvent reduces adhesion; a cloth carries the soil away. That sequence is useful for isolated, accessible surfaces and for spot treatment between production runs. It gives the operator direct tactile feedback and needs no power supply beyond lighting.
The limits appear as soon as the geometry becomes complex. Cutting oil residues collect in chip conveyor housings, behind guard panels, around telescopic way covers, and in the crevices around spindle housings. Rags cannot reach those areas reliably, and brushes push paste into openings rather than out of them. Solvent also has to be handled as a waste stream: contaminated rags, open containers and solvent vapour all have to be managed in a workshop where people are working nearby.
How steam changes the cleaning mechanism
A steam cleaning machine attacks the same deposit with heat and pressure instead of abrasion. Heat lowers the viscosity of the oil and breaks the bond between the residue and the substrate, so the film releases rather than needing to be scoured off. Pressure then carries the loosened material away from the surface. Because the cleaning agent is generated from tap water in the machine, there is no separate solvent inventory on the shop floor and no rag waste equivalent to the manual method.
For residues around machined surfaces, the steam mode matters. Dry steam carries high heat with little free water, which suits electrical cabinets, drive units and areas where standing water is unwelcome. Wet steam supplies more moisture and is better for heavy, cured deposits on guards, enclosures and structural parts. A machine that switches between the two lets an operator match the mode to the component instead of running one setting across the whole machine tool.
A comparison operators can run in their own shop
The most reliable comparison is a side-by-side trial on the same type of soil. Select one machine in the condition the team normally cleans, divide the work into matched tasks, and record the following for each method:
- Time from start to a surface that passes the shop’s own visual and wipe test.
- Number of areas that had to be reworked, especially blind areas behind panels and along way covers.
- Consumables used: solvent volume, rags, brushes and replacement PPE.
- Waste generated and how it has to be stored and disposed of.
- Downtime between the end of cleaning and the restart of production.
This keeps the decision grounded in the plant’s own standards. An operator comparing catalogue claims has no way of knowing whether a supplier’s test piece resembles the cured coolant film on their own equipment; a comparison run on their own machines answers the question directly.
Match the equipment to the cleaning point
Where machine tools are cleaned at fixed positions on a regular schedule, a stationary unit with a large water tank and a high-pressure gun is usually the better fit. The Fixed Steam Cleaning Machine PowerDe HW02 runs on 220 V, heats 6 kW to a steam temperature of 160° at 0.8 MPa, and holds an 80 L SUS304 tank, which reduces refilling during a long cleaning session. Its protection package covers leakage, short circuit, high temperature, high voltage, water shortage and high-voltage explosion. The enclosure footprint of 1,200 × 800 × 1,200 mm including handles means the unit needs a defined cleaning bay rather than being carried between stations.
Where the work moves along a production line, or where several machines are cleaned in sequence, battery-powered mobile units avoid trailing cables. The PowerDe cleaning equipment range includes driving-style and hand-pushed units with dry steam, wet steam and hot water modes, listed with leakage, short-circuit, high-temperature, high-voltage and water-shortage protection. The battery variants remove the constraint of finding a socket next to every machine, which matters in workshops with dense layouts.
Where manual work still belongs
Steam does not eliminate the operator. A gun removes deposit; it does not inspect a surface. After steaming, the team still wipes down critical ways, checks that water has not pooled near electrical connections, and confirms that chip conveyors and seals are clear. The sensible division of labour is mechanical force for heavy removal and human hands for finishing, verification and delicate components.
Before deciding, send the residue details to the equipment supplier — coolant type, how long the deposit is allowed to cure, which materials are in the cleaning zone and what the restart requirement is — and ask for a trial on your own machine. That produces a comparison based on your production constraints rather than a general claim about which method is better.
