INSPIRED INNOVATION
u PN Series Inert Atmosphere Ovens
Ideal for Wide Variety of Inert Atmosphere Applications
e PN Series Inert Atmosphere Ovens are designed to accommodate a wide
variety of processes where an inert atmosphere is required to prevent product
oxidation. Typical applications include curing, bonding and heat treating.
e PN Series contains a digital PID controller that is easy to use and
congure saving the operator time. It comes with two temperature ranges
and two sizes to meet your process needs. e stainless steel, continuously
welded interior is ideal for highly corrosive conditions or where interior
cleanliness is critical. It has adjustable recirculating air louvers that
allow “ne tuning” to assure uniform airow, even with varying load
congurations and consistent product heating. It also has a heat exchanger
for providing rapid cool-down or the ability to operate at low temperatures
within a sealed chamber – Air-to-water is used on 343°C models, air-to-air
for 538°C models.
Despatch provides the design integrity, manufacturing experience and
emphasis on quality necessary for dependable operation and excellent
process control.
FEATURES AT A GLANCE
u Horizontal airflow for superior
temperature uniformity
u Two maximum temperature ratings:
°C (650°F) and 538°C (1000°F)
343
u Two sizes: 9 cubic feet (255 liters) and
29 cubic feet (821 liters)
u Inert atmosphere capability
u Heat exchanger for rapid cool down
u Digital, easy to use, PID control
u Stainless Steel interior
u Adjustable recirculating air louvers
assure uniform airflow
u Chamber pressure gauge
u Positive sealing door for atmosphere
integrity
u UL and C-UL listed open industrial
control panel
Minneapolis • shanghai • Berlin • singapore • hsinchu • tokyo • seoul
OPTIONS
u Programmable controls for controlling rate of temperature rise and
process timing functions.
u Recorders – 10 inch diameter round chart. Strip charts also available.
u Oxygen concentration management system to guarantee low oxygen
concentrations and prevent heating until desired oxygen level is
achieved, assuring optimal product results.
u Disconnect switch in control panel to completely disconnect power to
equipment. Disconnect switch must be opened before control cabinet
door can be opened.
u
Door switch to shut down the heater and/or blower when door is open.
u Door lock to prevent opening door during cycle to assure process
is not interrupted.
u Process timers to automatically shut down oven at end of process.
u Alarms, audible and visual to signal end of process or other events.
u Capped access ports for pass through of wires and piping
required for process.
pn inert atMosphere oven PN 1-90 PN 2-29
D = 343OC (650OF)
F = 538OC (1000OF)
physical specifications
Chamber Size (width x depth x height) *Clear
opening width is reduced by 1.75 in (4.45 cm)
due to 7/8 in (2.2 cm) shelf supports on each side
Capacity 9 cu ft (255 liters) 29 cu ft (821 liters)
Overall Size (width x depth x height)
Distance from Floor to Work Opening 30 in (76 cm) 30 in (76 cm)
Insulation Thickness 5 in (12.7 cm) 6 in (15.2 cm) 5 in (12.7 cm) 6 in (15.2 cm)
Number of shelves provided 2 2
Maximum number of shelves 7 on 3 in (7.6 cm) centers 11 on 3 in (7.6 cm) centers
Approx. Weight 950 lbs. (431 kg) 2100 lbs. (952 kg) 2000 lbs. (907 kg) 3900 lbs. (1769 kg)
FUNCTIONAL SPECIFICATIONS
Heater Capacity 9 KW 20 KW 24 KW 40 KW
Recirculating System
Motor HP
CFM (LPS)
Time from Ambient to Maximum Temperature 60 Minutes (empty oven) 60 Minutes (empty oven)
Cool-Down Time from Maximum Temperature
Maximum Shelf Load 75 lbs. (34 kg) 130 lbs (59 kg)
Maximum Load Capacity 225 lbs. (102 kg) 350 lbs. (160 kg)
D F D F
25* x 25 x 25 in
63.5* x 63.5 x 63.5 cm
69 x 41 x 60 in
175 x 104 x 152 cm
1/3
575 CFM (271 LPS)11000 CFM (472 LPS)21700 CFM (802 LPS)21700 CFM (802 LPS)
45 Minutes to
o
100
C (212oF)
73 x 43 x 76 in
185 x 109 x 193 cm
105 Minutes to
125oC (257oF)
82 x 53 x 72 in
208 x 134 x 183 cm
45 Minutes to
100oC (212oF)
37* x 37 x 37 in
94* x 94 x 94 cm
85 x 55 x 88 in
216 x 139 x 223 cm
105 Minutes to
125oC (257oF)
Notes: PND ovens are not to be used with flammable solvents, combustible materials or enclosed containers. If your process involves flammable
solvents, consult the factory.
service and technical support
service parts: 1-800-473-7373
international service/main: 1-952-469-8230
service fax: 1-952-469-8193
service@despatch.com
gloBal headquarters
phone: 1-888-DESPATCH (1-888-337-7282)
international/main: 1-952-469-5424
fax: 1-952-469-4513
sales@despatch.com
8860 207th Street West
Minneapolis, MN 55044 USA
www.despatch.com
© 2010 Despatch Industries. All rights reserved. Despatch is a registered trademark of Despatch Industries in the U.S. and other countries. Ransco is a product line of Despatch Industries. PN 11-10