B3500 Convection Reflow Oven
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Maximum Functionality, Ease-of-Use, and Trouble-Free Maintenance are Not Sacrificed by the B3500 Compact Design While high mass heat sources and a unique air flow design allow efficient convection reflow over shorter heated lengths, great care has been taken to ensure that the B3500 compact design does not come at the expense of easy access to system components for regular operation and system maintenance. Lockable access panels, air-cylinder-assisted hinged covers, and an automatic heating chamber hood lift, complement a well thought-out and organized system architecture within a small footprint.  Automatic Hood-Lift Mechanism Allows Easy Access to Heating Chamber and Conveyor System for Cleaning and Maintenance This photo shows the interior of the heating chamber with the hood in the raised position and the bottom of the air diffuser panels of the upper heating zones. It also shows the combination mesh belt and adjustable pin-type conveyor rails above the belt. The rail at the center of the conveyor in this photo is the movable rail and is adjustable for board widths from 2" through 17.7" on the B3500 system. An optional centerboard support system is also offered to avert board warpage issues common to larger PCBs processed at higher lead-free temperatures.  High Precision Stainless Steel Conveyor Mechanism Includes Automatic Lubrication Function The adjustable edge-pin type conveyor is constructed of high-quality stainless steel components and features a very stable, rugged design to maintain tight tolerances at the high temperatures associated with lead-free reflow. In conjunction with an automatic chain lubrication system (shown in this photo), smooth, quiet conveyor motion is maintained and jams or dropped PCB assemblies are prevented. Precise hand wheel width adjustment is standard on all rail conveyor systems, although programmable, automatic width adjustment is also available as an option.  The B3500 Includes a Built-In Flux Filter to Prevent Excess Residue From Entering Exhaust System A built-in flux filtering system removes large amounts of excess flux from exhausted air or nitrogen. The filter is accessible through the hinged panels on the rear of the system and is easily removed and cleaned with an alcohol-based cleaner. |
Automatic Startup and Shutdown Functions Provide Maximum Flexibility and Energy Saving Potential Timed automatic startup and shutdown functions can be used to coordinate oven warm-up and cooldown times with breaks in production and transitions between up to three separate work shifts in each 24 hour period. These convenient scheduling tools will pay dividends through both energy conservation and production preparedness. B-Series Control Software is Highlighted by Its Attractive and Uncomplicated Menu-Driven Visual User Interface The main screen of the B-Series user interface features a colorful, virtual representation of the system showing the actual temperature of each zone and the general system status. A table at the bottom of the screen shows the actual values versus the set values for both temperature and conveyor speed. Systems also include PCB sensors on the conveyor and, through the control software, can monitor the number of assemblies processed. Easily identifiable icons at the top of the screen provide quick access to all software functions and control settings.  Zone Temperatures and Conveyor Speed are Easily Set Through a Password-Protected Parameters Window Process control parameters that produce a specific temperature profile can be saved to and loaded from memory for specific production runs. Once loaded, specific zone temperature settings, upper and lower limits, alarm settings and conveyor speeds can be adjusted as necessary. Password protection separates basic operator functions from critical parameter settings that should only be changed by supervisors or production managers.  Full-Screen Temperature Profile Recording The B-Series control software allows easy charting of real-time thermal data from up to three separate thermocouple inputs for precise profiling that matches solder paste manufacturers' critical lead-free reflow parameters. This allows users to set zone temperatures and conveyor speeds to the optimum settings that will produce the desired profile at the desired throughput. The thermocouples also allow monitoring of temperature sensitive components at specific locations on the PCB. |
5-Zone Lead-Free Convection Reflow System with Combination Edge-Pin/Mesh-Belt
Conveyor and Windows-Based OS!
Part of our popular B-Series of premium-quality, small-footprint reflow systems, the B3500
includes 5 full zones of hot-air convection heating, each with independent upper and lower
temperature controls, a combination adjustable edge-pin/stainless steel mesh belt conveyor,
three thermocouple inputs, and a computer controller with a user-friendly Windows-based
operating system for precision temperature profiling.
◎ Affordably-priced, 5-zone "lead-free" model suits a full range of production requirements
◎ High-mass heat sources and efficient flow design allow full, forced convection reflow in a footprint 20%-30% shorter than comparable systems
◎ Independent upper and lower PID temperature controls for each heat zone and three thermocouple inputs for accurate "lead-free" temperature profiling
◎ Combination stainless steel mesh belt and adjustable edge-pin-type conveyor handles
◎ PCBs up to 450 mm wide; 550 mm on mesh belt
◎ Easy-to-use Windows-based user interface with advanced temperature profiling and thermal management functions
◎ Timed automatic startup and shutdown modes for power management and energy
◎ conservation
◎ Includes industrial PC, LCD flat-screen monitor
◎ UPS battery backup to ensure product protection in the event of power outage (Optional)
◎ CE certified
◎ Small footprint - only 3m length
General:
Tin Lead (SnPb) Compatible
Double-Sided Board Processing
CE Compliance
SMEMA Compatible (Optional)
Board Handling:
Heated Board Width: 570mm
Mesh Belt Conveyor (Standard)
Mesh Belt Width: 570mm
Chain-Driven Pin Conveyor (Standard)
Pin Conveyor Max. Width: 450mm
Pin Conveyor Min. Width: 50mm
Auto Adjust Pin Conveyor (Optional)
Powered Center Support (Optional)
Automatic Chain Lubrication
Conveyor Speed: 400-1800mm/min
Conveyor Height: 900mm ±20mm
Conveyor Direction: Left to Right
Component Max. Height: 30mm upper, 25mm lower
Heating:
Forced Hot Air Convection
Number of Independently Controlled : 10 total
Heating Zones: 5 upper, 5 lower
Total Heated Length: 1910 mm
Number of Oven Convection Motors: 10 / Power: 120W x 10
Delta T: ±2° C
Temperature Controls:
PID (Proportional-Integral-Differential)
Temperature Control Accuracy :±1° C
PCB Temperature Tolerance :±2° C
Temperature Range: Ambient -300° C
Ramping Time (from cold start): < 15 min
Profiling / Thermocouple Channels: 3
Cooling:
Standard Cooling Method: Air
Number of Cooling Zones: 1
Cooling Tunnel Length: 370 mm
Exit Temperature: 40°C
Number of Cooling Fans: Three 45W
Operating System and User interface:
Windows Compatible PC
On-Screen Thermal Profiling and Parameter Setting
Print Capability
Data Logging & Event Recording
Alarms :Audible, Visual (Light Tower) and On-Screen Display
Dimensions and Physical Characteristics:
Size: L3040 X W1380 X H1445 mm
Net Weight:1220 kg
Utilities:
Power Supply: 220 VAC 3-Phase
Frequency: 60Hz
Operating Power Consumption: 6.5-10 KW
Start-Up Power(Sequential Start-Up Mode*): 16 KW
Current(Sequential Start-Up Mode*): 70A
Total Power (Maximum): 38 KW
Number of Exhaust Vents: 2
Exhaust Opening Size: 8" x 2"
Total Exhaust Venting Volume: 260 CFM
*Sequential Start-Up Mode is the default start-up mode and
limits current draw during start-up.
Miscellaneous:
Hood Opening Mechanism: Automatic Raise and Lower
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