The CTC-1212 Tertiary Impact Crusher serves the final crushing stage at high output, where shaping and fines generation are the goal. The following covers feed materials, output products, applications, wear-part service and comparisons with alternative final-stage crushers.
What materials can the CTC-1212 process?
The CTC-1212 is built for medium-hard, non-abrasive stone already reduced by a secondary crusher. Typical feed includes:
- Limestone, dolomite and similar sedimentary rock
- Secondary-crushed natural stone and gravel
- Pre-crushed material needing final shaping and fines
Maximum feed size is 150 mm. It is not intended for highly abrasive rock, which sharply increases blow-bar wear; for hard, abrasive stone a vertical shaft impactor is the preferred final-stage machine.
What products does it make?
The CTC-1212 produces a cubical, well-graded product down to around 0.5 mm with roughly 60 percent passing in one pass, at high volume. This covers fine concrete-grade aggregate and the fine fraction used as manufactured-sand feed. The high crush count delivers a strongly cubical grain shape that improves concrete strength, workability and compliance with shape specifications.
Which industries and applications use it?
- High-volume concrete aggregate production
- Manufactured-sand and fine-aggregate generation
- Asphalt aggregate with tight shape control
- Closed-circuit finishing of secondary-crushed stone
How are wear parts replaced and how long do they last?
The principal wear parts are the rotor blow bars and the breaker plate liners, both interchangeable. High rotor speed and fines generation cause steady wear that depends on feed hardness and tonnage; at the CTC-1212's output, wear should be tracked against volume processed. The hydraulic opening mechanism exposes the rotor and liners for replacement without dismantling, keeping downtime low.
How does a tertiary impact crusher compare with a VSI?
Both shape material in the final stage. A tertiary impact crusher uses a horizontal rotor with blow bars and breaker plates, giving strong reduction with cubical shaping, and suits non-abrasive stone. A vertical shaft impactor (VSI) accelerates material against anvils or a rock bed and is stronger at manufactured sand from harder, abrasive rock with lower wear when run rock-on-rock. The CTC-1212 is the high-output choice for non-abrasive feed where cubical product and fines are wanted, and it can run in series with a VSI where both cubical aggregate and a high sand yield are required at volume.
How does it compare with a cone crusher in the final stage?
A cone crusher reduces by compression and suits harder, more abrasive rock, but yields more flaky particles and fewer fines than the CTC-1212. For non-abrasive stone where cubical shape and fines are the priority, the tertiary impact crusher gives a better-shaped product in a single pass, at lower purchase price and with simpler maintenance.
How does the CTC-1212 relate to the other CTC models?
The CTC-1212 is high-output, with a 1,100 x 1,200 mm rotor, 150 mm feed and 120-170 t/h. The CTC-1275 (100 mm feed, 60-80 t/h) and CTC-1210 (120 mm feed, 80-135 t/h) cover smaller plants, while the CTC-1215 (230-250 t/h) tops the range. All share the 800-900 rpm rotor speed, selective crushing and hydraulic adjustment, so the choice follows required tonnage and feed size.
