Mold Block Quick Return System

An outstanding technical feature available on Corma corrugators is the patented Mold Block Quick Return (MQR) System. This feature increases production speed by extending the molding track with mold blocks from the return track. The quick return feature also allows the corrugator to operate with just a partially filled mold track.

The production speed of the corrugator depends on two key factors:
1) Length of time the mold blocks are in contact with the formed plastic
2) Heat exchange ability of the mold blocks

With Corma’s MQR System the mold track can be extended by the number of mold blocks saved in the return track and the production speed increases proportionately.

Corma’s self-driven MQR System automatically picks up the mold blocks at production speed, accelerates them along the return track, and slows them down again to production speed before entering the molding track. The end result is that mold blocks spend less time in the return track and more time in the molding track.

The MQR separates the mold blocks in the return track exposing all surfaces to be air cooled. Working in conjunction with other patented Corma features such as the Optimized Mold Block Design, SupercoolingTM and the Cooling Enclosure, highly effective cooling is achieved resulting in increased production speeds.

With these new features, Corma corrugators are even more productive. Customers who do not require high production speeds can benefit from the MQR System, since it can allow them to reduce their investments in mold blocks. With Corma’s future generation 40 series corrugator, even greater mold block savings and higher outputs can be achieved due to a newly designed MQR system.

This 1530-7.4 MQR corrugator is equipped with the Mold Block Quick Return System. It only needs 60 mold.

In comparison, this 1530-7.4 corrugator is not equipped with MQR and needs 74 mold blocks to form a molding.

 

Technical Specifications

Technical Specs

Corrugator Model Number* Vacuum Forming or Blow Molding Pipe Range (mm) Pipe Range (inches) Maximum Line Speed** Maximum Line Speed** Maximum Output** Maximum Output**
Min. I.D. Max. O.D. Min. I.D. Max. O.D. M/min ft/min Kg/hr lbs/hr
054 3 40 0.12 1.6 50 165 40 88
130 6 110 0.25 4.5 55 180 360 790
430 6 160 0.25 6.3 35 115 450 990
630*** 50 200 2.0 8.0 35 115 1040 2300
830*** 50 300 2.0 12.0 35 115 1040 2300
840 50 300 2.0 12.0 25 80 840 1850
1030 50 365 2.0 14.4 30 100 750 1650
1230 50 400 2.0 16.0 30 100 800 1760
1530 50 700 2.0 27.5 23 75 1000 2200
1540 50 700 2.0 27.5 23 75 1100 2400
2430 100 800 4.0 32.0 10 33 1300 2860
3630 100 1200 4.0 48.0 6 20 1300 2860
4830 200 1500 8.0 60.0 5 16.5 1400 3100
6030 450 1800 18.0 72.0 3 10 1500 3300
P30/60 750 1800 30 72 1 3.3 1300 2860
P30/120 750 3000 30 120 1 3.3 1500 3300

 

Vertical Corrugator Model Number Pipe Range (mm) Pipe Range (inches) Maximum Line Speed** Maximum Line Speed** Maximum Output** Maximum Output**
V053 1 20 0.04 0.8 50 165 30 66
V130 4 110 0.16 4.5 50 165 215 475

 

Rib-Pipe Model Number Pipe Range (mm) Pipe Range (inches) Maximum Line Speed** Maximum Line Speed** Maximum Output** Maximum Output**
R 2030 100 700 4.0 28.0 10 33 1100 2420
R 3030 100 1000 4.0 40.0 10 33 1300 2860

* Mold blocks are interchangeable within family (shaded) groupings. Also, mold blocks from smaller corrugators can be used on larger corrugators, using Corma’s Unified Mold Block System and Mold Block Adapter Shoes.
** Line speeds and outputs are theoretical and depend on: pipe diameter; type of plastic; machine model; cooling options; mold track length; temperature and quantity of cooling water; profile configuration; extruder capacity, etc.
*** 630-12 and 830-12 line speed and output based on high speed corrugator configuration.