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  COMAC "HIGH-VOLUME" EXTRUDERS (D/d ratio ≈ 1.65)
  Series HT (11 Nm/cm3) and series XT (15 Nm/cm3)
Model EBC 25 EBC 40 EBC 50 EBC 60 EBC 70 EBC 90 EBC 120
Nominal diameter (mm) 27 43 55 64 72 94 123
Screw number
of lobes
2 2 2 2 2 2 2
Screw
center to center
(mm)
22 35 44,6 52 58 76 100
Screw speed (rpm)
other values on request
 
600
900
1200
 
600
900
1200
 
600
900
1200
 
600
900
1200
 
600
900
1200
 
600
900
1200
300
600
 
 
Torque on each
screw (Nm)

HT(Hign torque)
XT(Extra torque)
 
 
117
160
 
 
472
643
 
 
976
1331
 
 
1547
2109
 
 
2146
2927
 
 
4829
6585
 
 
11000
15000
L/D ratio 32 ÷ 48 32 ÷ 48 32 ÷ 48 32 ÷ 48 32 ÷ 48 32 ÷ 48 32 ÷ 48
Output (Kg/h) 30
  ÷
90
120
  ÷
400
230
  ÷
750
350
  ÷
1250
550
  ÷
1850
1150
  ÷
3800
1350
  ÷
4500
Remarks:
L/D -- tipically, barrels are built-up by independently thermoregulated modules having 4 diameter lencth each;
Output -- the ranges here above want to give an idea on limits considering a variety of cases, but, figures can only be very indicative;
actually achievable values strongly depend on raw material formulations, target product and relevant desired characteristics, as well as speed and process conditions.
  COMAC "STANDARD" EXTRUDERS (D/d ratio ≈ 1.5)
  Series HT (11 Nm/cm3) and series XT (15 Nm/cm3)
Model EBC 25 EBC 40 EBC 50 EBC 60 EBC 70 EBC 90 EBC 120
Nominal diameter (mm) 26 42 53 62 70 92 120
Screw number
of lobes
2 2 2 2 2 2 2
Screw
center to center
(mm)
22 35 44,6 52 58 76 100
Screw speed (rpm)
other values on request
 
600
750
 
600
750
 
600
750
 
600
750
 
600
750
 
600
750
300
600
 
Torque on each
screw (Nm)

HT(Hign torque)
XT(Extra torque)
 
 
117
160
 
 
472
643
 
 
976
1331
 
 
1547
2109
 
 
2146
2927
 
 
4829
6585
 
 
11000
15000
L/D ratio 32 ÷ 48 32 ÷ 48 32 ÷ 48 32 ÷ 48 32 ÷ 48 32 ÷ 48 32 ÷ 48
Output (Kg/h) 25
  ÷
60
100
  ÷
250
200
  ÷
500
300
  ÷
750
500
  ÷
1400
1000
  ÷
2200
1200
  ÷
4000
Remarks:
L/D -- tipically, barrels are built-up by independently thermoregulated modules having 4 diameter lencth each;
Output -- the ranges here above want to give an idea on limits considering a variety of cases, but, figures can only be very indicative;
actually achievable values strongly depend on raw material formulations, target product and relevant desired characteristics, as well as speed and process conditions.
Comac S.R.L.       20023 Cerro Maggiore(Mi), via Legnano 57     -     tel. +390331577387     -     partita IVA 09986760156