Sunwill supply high chrome blow bars and with ceramic inserts. High chrome blow bars have the best wear resistance among all types blow bars but the lowest impact resistance so the feeding size into the impactor chamber must be strictly controlled and any unbreakable object is not allowed into the chamber.
With the ceramic inserts on the wear face, working life of the high chrome blow bars can be largely increased. Normally the high chrome/ceramic blow bar has 2 times wear life as much as the pure chrome blow bar.
Below is the selection guidance of blow bars for different applications:
| Code | Material | Basis Hardness | Wear Resistance | Applications |
| 200S | Manganese steel | 200-250HB | Relatively low | Large feed size low-abrasiveness stones,e.g. limestones. |
| 200ST | Manganese+Tic | 200-250HB | Up to 100% increased than Manganese | Same as above but where longer wear life required. |
| 550M | Martensitic Steel | 500-580HB | Medium | Medium feed size of low to medium abrasiveness, such as Limestones, Asphalt, Concretes, Building rubbles with steel rebars or a small quantity of unbreakable objects. |
| 550MC | Martensitic +Ceramic | 500-580HB | Up to 100% increased than Martensitic | Same as above but where longer wear life required. |
| 650C | Chrome casting | 650-700HB | High | Small feed size of medium to high abrasiveness but low strength, such as Limestones, Asphalt, Concretes, Building rubbles without steel rebars or unbreakable objects. |
| 650CC | Chrome +Ceramic | 650-700HB | Up to 100% increased than Chrome | Same as above but where longer wear life required. |
| 700CX | Chrome +Ceramic | 700+HB | Up to 200% increased than chrome | Small feed size of high abrasiveness and high strength materials, such as gravels, granites without unbreakable objects |
We are supplying blow bars in martensitic/ceramic to suit following impactors:
Metso NP1007, NP1110, NP1213, NP1315, NP1415, NP1520, NP1620
Terex Powerscreen XH250, XH320, TP320, TP500, TP550
Terex Finlay I100, I120, I130, I140
Terex Pegson 428/4242SR, 1412
Evoquip Cobra 230&260, Cobra 290
Kleemann MR100 EVO2, MR110 EVO2, MR130 EVO2, MR122Z
Rubblemaster RM60, RM70, RM80/90, RM100, RM120
McCloskey i34, i44, i54
Sandvik QI240, QI341, QI340, QI441
Eagle 1200, 1400
Hazemag HAZ789, HAZ1013, HAZ1022
Keestrack R3, R5, R6
Astect KPI-JCI 4250
Portafil 7000 or MI-7R
Striker 907, 1110-1112,
Tesab RK623/624, RK1012
Hartl 1060, 1310
Rockster r900
For impactor not on this list, please contact us for details.
All brand names, model names or marks are the property of their respective manufacturers. The above terms are used for identification purposes only and do not imply affiliation with or approval by the OEM. All parts are manufactured by SUNWILL and are not manufactured by, purchased from or guaranteed by the OEM.
