Blow Bars DETAILS

HSI impact crusher

Blow bars are the most crucial wear parts in a HSI impact crusher that break big feed materials into smaller sizes. It is vertically mounted on the rotor and runs in a very high speed with the rotor. The objects feed from the open inlet of impactor are hit by the blow bars towards the impact plates which are mounted on the aprons and bounced back. The objects are shattered and size reduced during this process and discharged from the outlet of impactor.

Due to this working principle, the blow bars withstand huge impact force and harsh abrasion during the crushing process. Hence, it is very important the select the right and reliable blow bars for impact crusher. Good blow bars will last as long as possible and don’t break.

BLOW BARS

Blow bars are originally manufactured in a foundry.The ferrous materials are melted, poured into sand patterns and the shapes of blow bar castings are then created. After proper heat-treatment, grinding, machining, inspections and packages, they are mechanically qualified to be installed and used for an impact crusher.

Blow bars are conventionally made of chrome, martensitic and manganese mono-alloys.

MMC (Metal Matrix Composite) technology is a trending wear solution that embeds hard industrial ceramics into the wear areas of a blow bar to improve its wear resistance performance, reducing downtime and increasing the productivity of crushers. MMC blow bars are 2-4 times longer service life than the mono-alloy, and theoretically productivity be increased by 5-10 percent per hour.

BLOW BARS

Sunwill manufacture the mono-alloys and also MMC blow bars for customers:

  • Chrome white iron
  • Chrome with ceramic
  • Martensitic/low chrome steel
  • Martensitic/low chrome with ceramic
  • Manganese steel
  • Manganese steel with Titanium carbides (TIC) inserts
  • Customized alloys for specific applications

How to select the right blow bars for your crushers? Following should be taken into consideration for choosing the right blow bars:

  • What is the materials crushed and how hard is it?
  • How big is the feeding size?
  • Is the material cubic shape or plate-like?
  • Any tramp iron or unbreakable objects contained?

Following is the guidance for blow bars selection or please contact us for an advice if you are not sure about the selections.

Matrix Alloy Inserts Wear life Feeding size Tramp iron Typical application
Chrome No Long <300mm Not allowed Limestones, Asphalts
Chrome  Ceramic 2 to 3 times of Chrome <300mm Not allowed Asphalts, Granites, River pebbles
Martensitic No Shorter than Chrome <600mm Steel rebar allowed Rubbles, Concretes
Martensitic Ceramic 2 to 3 times of Martensitc <600mm  Steel rebar allowed Rubbles, Concretes
Manganese  No Shorter than Martensitc >600mm  Allowed Blasted limestones
Manganese Titanium carbides  1-2 times of Manganese >600mm  Allowed Blasted limestones

* The data in above is for reference only. Material selections may vary according to the specific crushing applications.

Replacement wear parts Machine to fit Replacement wear parts Machine to fit
Blow Bar Metso NP-LT 1007 Blow bar Rubblemaster RM60
Blow Bar Metso NP-LT 1110 Blow bar Rubblemaster RM70
Blow Bar Metso NP-LT 1213/1313 Impact plate Rubblemaster RM70 (Grooved)
Blow Bar Metso NP-LT 1315/1415 Impact plate Rubblemaster RM70 (Plain)
Blow Bar Metso NP1520/1620 Blow bar Rubblemaster RM80/90
Impact plate Metso NP-LT 1007 Impact plate Rubblemaster RM80/90 (Grooved)
Impact plate Metso Metso NP-LT 1110 Impact plate Rubblemaster RM80/90 (Plain)
Impact plate Metso Metso NP-LT 1213 Blow bar Rubblemaster RM100
Impact plate Metso NP-LT 1315 Impact plate Rubblemaster RM100 (Grooved)
Side liners Metso NP-LT 1213 Impact plate Rubblemaster RM100 (Plain)
Blow Bar Kleemann MR100Z Blow bar Rubblemaster RM120
Blow Bar Kleemann MR110Z EVO Impact plate Rubblemaster RM120  (Grooved)
Blow Bar Kleemann MR122Z Impact plate Rubblemaster RM120 (Plain)
Blow Bar Kleemann MR130Z EVO Blow bar KPI-JCI FT4240
Blow Bar Kleemann MR130Z Blow bar KPI-JCI FT4250
Blow Bar Kleemann MR130Z Blow bar KPI-JCI FT5260
Impact plate Kleemann MR130Z Blow bar Keestrack R3
Blow bar Sandvik QI341 (QI240) Blow bar Keestrack R3e
Blow bar Sandvik QI353 Blow bar Keestrack R5
Blow bar Sandvik QI441 (QI440) Blow bar Keestrack R5e
Blow bar Sandvik QI340 Blow bar Keestrack R6
Blow bar Powerscreen XH250 Blow bar Keestrack R6e
Blow bar Powerscreen XH320 Blow Bar McCloskey I34
Blow bar Powerscreen Trakpactor290 Blow bar McCloskey I44
Blow bar Powerscreen Trakpactor 320 Blow bar McCloskey I4C
Blow bar Pegson 1412 tracpactor Blow bar McCloskey I54
Blow bar Trakpactor500/550 Blow bar Hazemag HAZ789
Blow bar Pegson 428 Blow bar Hazemag HAZ790
Blow bar Evoquip Cobra 230/260 Impact plate Hazemag HAZ796
Blow bar Evoquip Cobra 230/260 (SHORT/HALF) Impact plate Hazemag HAZ797
Blow bar Evoquip Cobra 290 Impact plate Hazemag HAZ 853
Blow bar Finlay I-100 Blow bar Hazemag HAZ 850A
Blow Bar Finlay I-110 Blow bar Hazemag APK105
Blow bar Finlay I-120 Blow bar Hazemag HAZ791
Blow bar Finlay I-130 Blow bar Hazemag HAZ1013
Blow bar Finlay I-140 Blow Bar Hazemag AP-PM 1822
Blow bar Tesab RK623/624 Blow Bar Hazemag AP-PM 2225
Blow bar Tesab RK1012 Blow bar Hazemag M1022
Grinding list Tesab 4-485 (RK623) Impeller Canica 90,95,100
Grinding list Tesab 3-604 (RK1012) Impeller Canica 105,125

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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.