Maguire Products, Inc.
Edition: May 27, 2009 – VBD-50
13
VBD
- Vacuum Batch Dryer
3.3 – Recommended Heat Times and Temperatures
MATERIAL
FINAL
MOISTURE % *
HEAT TIME
(MINUTES)**
DRYING TEMPERATURE***
ºC ºF
ABS
0.10
30 - 35
80 - 85
180 – 190
ABS/PC
0.02
35 - 40
100
210
LCP
0.02
30 - 60
150
300
PA
0.20 - 0.10
30 - 40
80 - 85
180 – 190
PBT
0.02
30 - 35
120
250
PC
0.02
30 - 35
125
250
PC/PBT
0.02
30 - 35
125
250
PEEK
0.20 - 0.10
35 - 40
150
300
PEI
0.02
30 - 50
150
300
PES
0.05 - 0.02
35 - 40
150
300
PET (Molding Grade)
0.010
30 - 45
150
300
PET (Preform, Extrusion)
0.005
30 - 45
150
300
PMMA (Acrylic)
0.02 - 0.04
40
85
185
POM (Acetal)
0.20 - 0.10
45
80 - 110
180 – 230
PPO
0.02
45
100 - 120
210 – 250
PPS
0.02 45
150
300
PUR
0.02
45
125 - 140
260 – 280
PSU
0.02
35 - 40
150
300
SAN
0.20 - 0.10
30 - 50
80
180
* Final moisture content as recommended by the raw material manufacturer.
** Recommended heat time is based on average initial moisture content. For high initial
moisture content cycle time should be extended 5 minutes. When in doubt contact Maguire
Service.
*** Drying temperature as recommended by the material manufacturer.
Drying is accomplished when all material reaches the proper temperature, and is then
placed under sufficient vacuum for a sufficient period of time.
Measurement of moisture content of material, both prior to and after drying, is
accomplished by using a moisture analyzer such as one manufactured by Arizona
Instruments.
Summary of Contents for VBD-50
Page 2: ...Maguire Products Inc Edition May 27 2009 VBD 50 2 VBD Vacuum Batch Dryer...
Page 14: ...Maguire Products Inc Edition May 27 2009 VBD 50 14 VBD Vacuum Batch Dryer 3 4 Dryer Overview...
Page 36: ...Maguire Products Inc Edition May 27 2009 VBD 50 36 VBD Vacuum Batch Dryer 6 3 VBD 50 Diagrams...
Page 37: ...Maguire Products Inc Edition May 27 2009 VBD 50 37 VBD Vacuum Batch Dryer...
Page 38: ...Maguire Products Inc Edition May 27 2009 VBD 50 38 VBD Vacuum Batch Dryer...
