Pyramax 75A
SMT Model Line-up
Model
Zones
Heating
Cooling Atmosphere
Pyramax 150Nx5
10 top/bottom
150”
56”
Air/N2
Pyramax 150A
10 top/bottom
150”
48”
Air
Pyramax 125N
10 top/bottom
125”
46”
Air / N2
Pyramax 125A
10 top/bottom
125”
48”
Air
Pyramax 100N
8 top/bottom
100”
28”
Air / N2
Pyramax 100A
8 top/bottom
100”
24”
Air
Pyramax 75A
6 top / 3bottom
75”
24”
Air
Specifications – Pyramax 75A
Max Temp
Number of Zones
Heating
Cooling
3500 C
6 Top / 3 Bottom zones, 1, 5 and 6
Heated zones 2,3,4 optional
1 Top (bottom optional)
Heating Length
75 inches (191cm)
Cooling Length
24 inches (61cm)
Atmosphere
Air
Board Width
2 - 18 inches – standard
2 - 24 inches – optional
Typical belt speed
Temperature Uniformity
20-24 ipm - Eutectic
16-20 ipm - Lead Free
+ 2o C
Pyramax 75A Layout
Lip Vent
Exhaust
Heated Zones
6 Top / 3 Bottom
Optional Bottom
Zones 2, 3, 4
Lip Vent
Exhaust
Cooling Section
Design Highlights
• Ergonomics
– Highly accessible
– Sliding panels
• 3500C Max Temp
– Lead Free Ready
• Clamshell Cooling
– Effortless access for
maintenance
• Convection Control
– Heating and cooling
Heater Layout
Standard Heater Layout
Z1
Z2
Z3
Z4
Z5
Z6
Top
2.7kW
2.7kW
2.7kW
2.7kW
2.7kW
2.7kW
Bottom
2.7kW
2.7kW
2.7kW
Optional Heater Layout
Z1
Z2
Z3
Z4
Z5
Z6
Top
2.7kW
2.7kW
2.7kW
2.7kW
2.7kW
2.7kW
Bottom
2.7kW
2.7kW
2.7kW
2.7kW
2.7kW
2.7kW
Process Chamber
• 350ºC Temp Rating
–
–
Lead Free Ready
Quality stainless steel construction
• 6 Zones, 75 inches of heated
length
• Blower module with reduced
size and weight
–
Easy access
• 24” wide processing capability
–
Increased throughput
• Single process chamber
–
No third lead screw required
•
eliminates dip in profile
Heating Module Components
Heating Element
Scroll – 4 ports
Orifice plate
Blower wheel
Static pressure
sample port
Overtemp T/C
Control T/C
Zone to Zone Control
• Air intakes for each zone
– Factory set
– Allows fresh gas into
process chamber
– Improves individual zone to
zone separation
– Improves profile
changeover time
Adjustable air intake
Heated Air Plenum (Air HAP)
3 phase Blower Motor
1/8 HP 2840-3400 RPM
Air inlets
Low Pressure (vacuum)
High Pressure
Heaters
Blower Wheel
Product Coming Towards You!
Static Pressure
• What is Static Pressure?

Static pressure is what is developed within the blower
plenum to produce true forced convection
• Why is Static Pressure important?



Static pressure directly relates to the amount of heat
transfer an oven can deliver
The greater the static pressure the greater the heat
transferred to the product
Static pressure insures uniform convection delivery
from the plenum to the product
Thermal Effects of Convection Rate
Peak Temp
Convection Rate Measured in In/H2O
Low
High
Tantalum Cap
Large QFP
Chip Resistor
SOIC
TC Mean
TC SD
Delta T
0.5 IWC
209.1
199.2
209.9
209.7
207
5.2
10.7
40 HZ
Effects of Low Convection Rate
Lower Peak Temp
Larger Peak Delta T
Thermal Uniformity Deteriorates
0.8 IWC
212.1
203.5
213.6
212.6
210.5
4.7
10.1
50 HZ
1.2 IWC
213.6
206.7
215.2
214.8
212.6
4
8.4
60HZ
1.5 IWC
215.7
209
216.8
216.2
214.4
3.6
7.8
70HZ
Effects of Increasing Convection Rate
Greater Peak Temp
Smaller Peak Delta T
Thermal Uniformity Improves
BTU Closed Loop Convection
• Highest level of process control
• Ensures repeatable heating and cooling transfer,
oven to oven, line to line
• Transferable recipes line to line, plant to plant
• Heating and cooling convection remains constant
– Independent of temperature, voltage and altitude
variations
• Programmable range of 0.5-1.5 IWC
Closed Loop Convection Control
• Ideal for Lead Free applications
– Stay within lead free process window
• Controlled heating and cooling
convection rates
Furnace
Control Unit
0-10 VDC Out
Speed
Controller
Frequency
Adjust RPM
Pressure
Transducer
Air Cooling System
• 24 inch forced impingement
air cooling
– 1 top zone, bottom optional
– Lowest exit temperatures
– Best uniformity throughout the
profile
• Open / Closed Loop Control
– Ensures repeatability
– Controlled cooling rates
• Clamshell design
– Easy access for maintenance
Air Cooling System Operation
Lip Vent
Exhaust
3-Phase
Blower Motor
Heated
Section
Air Inlet
Direction of
product travel
Product
Edge
Conveyor
Cooling air via forced
impingement onto product
Room air drawn
into cooler
Controlled Cooling Rate
Cooling convection rate: 0.2 iwc
Product Exit Temperature: 141.3C
Controlled Cooling Rate
Cooling convection rate: 1.2 iwc
Product Exit Temperature: 105.9C
Key Features / Options
Conveyor System
• 2-18inch width standard,
belt or rail, 2-24” optional
• Brush-less drive motor
– Eliminates maintenance of
changing motor brushes
• Automatic chain lubrication
– Minimizes downtime
associated with chain
lubrication
• Flat flex or fine mesh belt
Conveyor System
• Roller system for
adjustable edge rail
• Stainless steel support
shafts for EC and center
support
– Reduced friction
– Ensures rail parallelism
(within 0.040”)
• Easy assignment fixed
vs. moveable rail
– Allows right to left field
conversion
Advanced Conveyor Solutions
• Precision center support
• Basic center support
– Chain pin lengths to 0.120”
• Minimizes underside
product clearance
Precision Center Support
Existing Design
New Design
Center Support Comparison
Existing Design
New Design
Tuck-Away Capability
0.160 inch (4mm)
1.2 inch (30mm)*
Chain pin support
0.120inch (3mm)
0.5 inch
(12.7mm)
Front fixed rail
0.8 inch
(20.3mm)
0.5 inch (12.7mm)
Center support tab
0.040inch (1mm)
* Clearance is 2.2 inch (56mm) with 3 inch tunnel option
Basic Center Support
Printed Circuit Board
Clearance Above Pin 1.2 Inches
Extruded Rail
Extruded Rail
0.060”
+/- 0.020
0.710”
#35 Chain Center
Support with Tab
Fine Mesh Belt
• Width adjust via locking collars
• 0.250” recommended keep out space
• Includes fine mesh belt option
Edge Conveyor
Support Pin
WINCON Software
•
Wincon 4.0
– WindowsTM / XP
–
–
–
–
–
–
•
Supports Multiple Languages
Barcode Reader Compatible
GEM Compatible
Extensive security and data collection features
Flexible time and recipe scheduling
Help section
Intellimax
–
–
–
–
Faster sampling rates
Increased I/O with expansion capability
Software upgrades via web/email
Diagnostic capability
Feature / Benefit Summary
• 3500C max temperature
•
•
•
• Forced impingement
convection with side to
side recirculation
• Superior heating
cooling transfer
• Reduced zone temp
set-points
• Improves zone to zone
isolation
• Best uniformity
Lead free ready
Fastest response times
Greatest flexibility for
eutectic and lead free
processing
Feature / Benefit Summary
• Closed loop convection
• Cost of ownership
•
Maintains constant heating
and cooling rates independent
of temperature, voltage or
altitude variations
•
Ensures repeatability site to
site, line to line, oven to oven
•
Facilitates process transfer
•
•
•
•
Competitive pricing
Unmatched uptime
Ease of accessibility
Low N2 consumption
Feature / Benefit Summary
• Flexibility
• Lead free ready
• 24 inch capability
• Meet customer needs
today and tomorrow
• Comprehensive
warranty
• Lifetime heaters and
blowers
• 3 year full system
• 1 year labor