Drying and Conveying

Typical Resin Drying Temperature
Polymer Temp (°F) Hours
ABS  High Impact 190 4
ABS High Heat 190 4
ABS Med Impact 190 4
Acetal 200 1.5
Acrylic Gen Purpose 180 1.5
Acrylic High Heat 180 2.5
Acrylic High Impact 180 2.5
Nylon 6/6 180 4
Nylon 6 180 4
Nylon 6/10 180 4
Nylon 12 180 4
Polycarbonate Med Vis. 250 3.5
PET – Bottle 340 5
PBT 260 2.5
Polyetherimide 310 4
PPO 210 2.5
SAN 180 3
Material Conveying sizing
Recommended Tubing Size
Vacuum Pump HP Tubing size (in.) Conveying Air Rate (cfm)
5
2
100
10
2.5
160
15
3
240
25
4
440
Material Conveying sizing guidelines
Conveying tubing recommended bend radius
Tubing size (in.) Mat’l line bend radius (in.) Vacuum line bend radius (in.)
2
18, 24
9
2.5
30
9
3
36
9, 12
3.5
36, 48
12
4
36, 48
12,18
Equivalent Feet:
Horizontal distance = 1 ft
vertical distance = 2 ft
90 degree elbow = 20 ft
flex hose = 4 ft
Typical Single Screw Extruder Rates
Size LBS/HR
RPVC FPVC HDPE
3/4″ 24:1 (19mm) 5 10
1″ 24:1 (25mm) 10 15
1-1/4″ 24:1 (32mm) 20 30
1-1/2″ 24:1 (38mm) 40 75
1-3/4″ 24:1 (44mm) 50 90
2″ 24:1 (50mm) 90 140
2-1/2″ 24:1 (63mm) 150 250
75mm 24:1 (3″) 200 350
3-1/2″ 24:1 (90mm) 300 500
100mm 24:1 (4″) 800
100mm 30:1 (4″) 900
4-1/2″ 24:1 (113mm) 1000
4-1/2″ 30:1 (113mm) 1200
130mm 24:1 (5″) 1300
130mm 30:1 (5″) 1500
6″ 24:1 (151mm) 1600
6″ 30:1 (151mm) 1800
175mm 30:1 3000
8″ 30:1 (208mm) 4000