The CONSTMACH CBC-1.200 belt conveyor is the highest-capacity material-transport machine in the range, used within a crushing and screening or concrete batching plant. Rather than processing material, it moves the heaviest material flows continuously between machines and out to stockpile. Understanding where it fits in the flowsheet, the belt and component choices, the incline it can handle, and its maintenance helps operators keep maximum tonnages moving without spillage or downtime.
Where the CBC-1.200 Sits in the Plant
Conveyors link every stage of the plant. The CBC-1.200 is suited to primary discharge conveyors carrying coarse run-of-crusher rock, the heaviest main transfer lines and long stockpiling conveyors. With its 1.200 mm belt it carries the greatest volume of any model in the range.
What It Handles and Belt Types
- The 1.200 mm belt suits the highest flows of crushed stone, gravel, sand and coarse primary-crushed rock.
- A smooth rubber belt is used on horizontal and gently inclined runs; a ribbed belt is used on steeper inclines to prevent roll-back.
- A 4-ply (4 tarpaulin) belt is fitted as standard, with the grade selected for the material and conditions.
Incline Limits
- With a smooth belt, conveyors are generally kept within roughly 18-20 degrees before material begins to slip back.
- A ribbed or chevron belt extends the workable incline beyond that of a smooth belt.
- The exact limit depends on material type, particle size and moisture; steeper lifts require belt and drum selection accordingly.
Maintenance
- Keep the belt tracked and correctly tensioned using the drum tightening rings, which is critical at this width and tonnage.
- Inspect the RV-shaped rubber scraper and replace it when worn to control carry-back and spillage.
- Lubricate the SN-housed spherical roller bearings and check the support rollers for free rotation.
- Inspect drum lagging, the large drive package, and ensure walking platforms and emergency stops are functional along the full length.
Comparison with Alternatives
Against screw or chain conveyors, a belt conveyor moves abrasive aggregate over longer distances with lower wear and energy use, though it is less suited to steep vertical lifts. Within the CONSTMACH range the CBC-1.200 is the widest and highest-capacity unit; the CBC-1.000, CBC-800, CBC-650 and CBC-500 offer progressively narrower belts for lower-volume duties.
Components and Construction
The CBC-1.200 is built on a durable, heavy steel chassis with troughing idler sets that form the widest belt in the range into a deep, high-capacity channel, and flat return idlers beneath. The driving and transfer drums are rubberized and vulcanized with diamond grooves to maximise grip on the wide belt and carry tightening rings on the axis to hold tracking and tension under the high belt loads this width generates. Bearings are double-row spherical roller bearings in SN-type split housings, replaceable without dismantling the shaft and able to absorb the misalignment and shock of coarse, heavy aggregate. The drive is the largest reducer or motor-and-reducer package in the range, sized to the length, lift and maximum tonnage of the run.
Safety and Optional Features
- Walking platforms run the full length of the conveyor for safe inspection and maintenance access.
- Emergency stop buttons allow the belt to be halted instantly from any point along its length.
- An optional cover reduces dust emission when handling dry material at the highest volumes.
- The RV-shaped rubber scraper controls carry-back, which is essential on the highest-tonnage conveyor in a plant to limit spillage and protect the return idlers.
Selection Guidance
Choose the CBC-1.200 for primary discharge conveyors carrying coarse run-of-crusher rock, the heaviest main transfer lines and long stockpiling conveyors in the largest installations. Lighter duties are served more economically by the CBC-1.000 and narrower models. Confirm belt length, lift and material bulk density, including the largest lump size for primary duty, when specifying the drive and belt grade.
