REWITEC™ frequently asked questions (FAQs)
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How long has REWITEC been operating and in what regions?The company has existed since 2003 and operates globally.
What are the main areas of use for REWITEC products?The products are used in what are known as tribological systems, for example gearboxes, bearings and internal combustion engines of every kind. They can be used in practically any sector, with our main target markets including wind energy, shipping, thermal power plants, general industry and automotive.
How do REWITEC products actually work?A chemical/physical reaction of the active agents produces an optimisation of friction levels and passivation of the metal surfaces, which ultimately leads to less wear inside the component. The result is greater energy efficiency and an optimised service life (more details can be found under the Technology heading below)
Which REWITEC product lines are intended for which components?
- PowerShot™ is used to treat internal combustion engines
- DuraGear™ is to treat industrial gear units including the largest, heavy duty
- G5 is for passenger car gearboxes
- GR400 (grease) is designed for bearings applications
- PowerSpray is an all-purpose spray for domestic use
- ChainSpray is used for two-wheeled vehicles, including motorcycles, bicycles as well as chain-driven conveyors.
Are REWITEC products additives?
In the literal technical sense, yes. However, (in contrast to all other conventional additives) they exert their effect not on the lubricant qualities, but instead use the oil or grease as a “means of conveyance” in order to transport the active components in the mixed friction range to the metal surfaces’ hot spots, where they then react. We therefore see REWITEC™ products not as additives, but instead much more as surface refiners.
Can REWITEC products only be used in relatively old equipment, or can they be used on newer / new equipment too?
Thanks to their surface-refining effect, our products are particularly effective within older units that have already been worked hard. They can hold the advance of any damage or nascent micro-pitting and (within the bounds of physics) even have a repairing effect. However, it also makes sense to use them on newer/new equipment, as the effect is preventative and helps to prolong service life and increase efficiency.
What services does REWITEC offer besides the actual products?
Advice on product use, assessments of plant condition, application of the products on site, surface documentation by means of micro-imprints with subsequent microscopic-visual evaluation (before/after comparisons).
Where can REWITEC products be bought?
Please contact us to purchase REWITEC products.
Has the effectiveness of REWITEC products been proved by any independent scientific tests?
Independent stress tests have been conducted at institutes such as Frankfurt Technical University, Mannheim University (Tribology Centre of Excellence) and Gießen University (Chair for Nano-Tribology). Please contact us if you would like further information.
What in concrete terms is the effect of REWITEC products?
They significantly reduce (primarily through surface passivation) the friction levels of treated components and thus simultaneously ensure less wear, lower system temperatures and as a result have the effect of prolonging service life.
What influence do REWITEC products have on the temperature conditions inside the treated assembly?
After using our agents, many users identified a noticeable to significant drop in temperature, which naturally varied due to the differing machine parameters and parameters of use. Scientific studies at Mannheim University showed a reduction in oil temperature of 20%.
Can REWITEC products repair existing damage, e.g. on the surfaces of tooth flanks?
Yes, to a certain degree (within the bounds of what is physically possible) even existing micro-damage can be repaired. Download our wind turbine application catalogue to find out more.
Is it necessary to do an oil change?
Ideally, any treatment using our products takes place in relatively new oil and with new appropriate oil filters and not shortly before a planned oil change. However, it is not absolutely necessary to carry out an oil change prior to using our products.
After treat with REWITEC, is the surface hardness altered?
The surface hardness of treated materials does not get altered through treating with REWITEC. They retain their original hardness.
How long does the REWITEC coating last/how often must a component be retreated?
After having its initial treatment, we recommend that equipment has follow-up treatment every year. This can then be done with a lower dosage of active agents and thus at a much lower price.
Is it possible to see the positive effects of REWITEC products in condition monitoring systems (CMS)?
Generally, yes, as with CMS what predominantly gets recorded are acoustic (damage) frequencies being produced by pre-damaged components. Once the latter have been optimised through the use of REWITEC products, the noises and vibrations are usually reduced and can be verified in the CMS logs.
Are there any negative effects on other materials, e.g. sealing gaskets or similar?
No, because REWITEC products have an effect solely on metal surfaces (e.g. steel, iron, brass, white metals, etc.). They do not, therefore, affect other (sealing) materials.
In engines, do honing grooves that are deliberately applied to the cylinder linings get negatively affected?
No, we are not aware of any case where honing grooves have been damaged by REWITEC treatment.
What are the main advantages of using REWITEC products?
Components treated with REWITEC will experience a reduction in the friction within these systems, which as a consequence reduces the mechanical strain put on the components and the thermal loading of the whole system. This is accompanied by an optimisation of energy efficiency and durability.
How does using REWITEC products create potential savings?
Through working as described above, the products reduce loading on treated components, which can result in an extended service life, optimised maintenance cycles, longer lubrication intervals, lower replacement parts costs and many other benefits. Energy consumption (e.g. by drive systems and engines) can be lowered, which additionally reduces expenditure for the operator. Taking wind turbines as an example, improved energy efficiency also makes it possible to achieve a greater electricity yield and thus a higher level of income.
Over what period do REWITEC products pay for themselves?
This will depend on the parameters of the equipment treated. However, in comparison to other optimisation measures the amortisation times are surprisingly short and sometimes just 1-2 months!
Brochure: REWITEC application guide
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Wind turbine lubricant additivesSpeciality friction modifiers, base oils, gear oils and REWITEC additives
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