R300 Abrasive Ring Cleaning Ball
Description
The R300 Abrasive Ring Cleaning Ball is specially developed for stainless steel and titanium condenser tubes operating with all types of cooling water, including special water conditions.

The R300 features a localized silicon carbide abrasive ring bonded to a resilient sponge body. This unique design delivers concentrated cleaning power at specific contact points, effectively removing hard deposits while minimizing wear on tube surfaces.

For copper alloy tubes, the R300 should only be used in accordance with our technical recommendations.
Applications

Stainless steel and titanium heat exchanger tubes
Suitable for all cooling water systems and special water quality conditions
Removal of hard deposits such as:

Calcium carbonate (calcite)
Mineral scale
Corrosion by-products
Residual deposits and other stubborn fouling

Particularly suitable for removing thick and hard scalethrough increased localized contact pressure
Recommended for removing localized hard scale and oxide layers where full-surface abrasive cleaning is not required

Recommended Cleaning Frequency
The cleaning frequency and the number of circulating cleaning balls should be determined according to the operating conditions and verified through technical evaluation or field testing.
Features

Localized silicon carbide abrasive ringon a resilient sponge body
Wet density: 06–1.10 g/cm³
Hardness: 30–36 Shore
Targeted descaling with concentrated contact pressure
Gentle cleaning action that helps protect thin-wall copper alloy tubes
Excellent balance between cleaning efficiency and tube surface protection
Designed for periodic intensive cleaning rather than continuous operation

Working Principle
The R300 is designed as an intensive cleaning ball and should not be used as a continuous operating ball.

Its localized abrasive ring creates two high-pressure contact points inside the tube, enabling effective removal of particularly thick and hard deposits. Once the abrasive ring has worn away on most of the circulating balls, the balls should be replaced to maintain optimum cleaning performance.
Technical Notes

Under microscopic examination, the abrasion marks produced by the R300 are finer than those generated during the manufacturing process of stainless steel and titanium tubes.
Because the abrasive ring contacts the tube wall at only two points, fully coated abrasive cleaning balls (such as the T-Series) are generally preferred when uniform cleaning of the entire tube circumference is required.
Excessive or improper use may accelerate wear of heat exchanger tubes or system components. The R300 should therefore be used only for periodic intensive cleaning in accordance with recommended operating procedures.

Advantages

Localized silicon carbide abrasive ringfor precise and efficient descaling
Effective removal of localized hard scale and oxide layers
Gentle cleaning action that helps protect thin-wall copper alloy tubes
Excellent balance between cleaning performance and tube wall protection
Durable sponge body with long service life
Suitable for stainless steel and titanium tube bundles under demanding operating conditions
Ideal for applications where full-surface aggressive abrasion is unnecessary

Recommended Applications
The R300 is particularly recommended for:

Localized hard scale and oxide layer removal
Stainless steel and titanium tube condensers and heat exchangers
Cooling systems operating under special water quality conditions
Applications requiring effective cleaning while minimizing tube surface wear
Situations where full-surface abrasive cleaning is not recommended