The sponge concrete cleaning out ball is made of natural rubber with good resilience, wear resistance. The sponge ball fully fits the inner wall of the pipe, which is highly efficient to eliminate cement, concrete from concrete pump tube pipe & hose.
The sponge ball has sufficient filler, uniform pores and strong water absorption, and it is durable and can be used for many times.
The cleaning ball has good elasticity, tear resistance, uniform density and no odor.
Rubber content | Dry Gravity | Tensile Strength | Density | Compression Ratio | Aging coefficient | Deformation rate | Expansion rate |
≥ 80% | ≤ 0.5 | 16Mpa/cm2 | 250kg/m3 | 30% ~50% | ≥ 0.8 | ≤ 10% | ≤ 5% |
100mm sponge ball is using for DN80 concrete pump pipe.
125mm sponge ball is using for DN100 concrete pump pipe.
150mm sponge ball is using for DN125 concrete pump pipe.
We have different sponge cleaning ball size in stock, and ball catcher for supplying. Small order quantities is acceptable.
Item | Hardness | Diameter mm |
2'' | soft ,hard ,medium | 62 |
3'' | soft ,hard ,medium | 92 |
4'' | soft ,hard ,medium | 125 |
5'' | soft ,hard ,medium | 150 |
6'' | soft ,hard ,medium | 175 |
We also offer rubber hoses and pipeline, learn more please click follow.