• Excellent process control including below-board infared pre-heating. precisely regulated and metered heat applied to the component, and electronic digital regulation of the air flow rate.
• All process steps can be programmed and saved as rework profiles on the digital data input unit or a PC.
• The WQB3000 utilizes the patented Weller mini template system for the placement of components on the ciruit board.

Additional Product Features and Benefits:

Base Unit:

• The unit features a two head system for component placement and hot air desoldering
• The two heads operate on sliding arms, which are controlled by pneumatic cylinders .
• The control electronics and pneumatic unit are intigrated into the rear housing .
• LED's on the back of the housing panel indicate four process states: top heater, bottom heater, desoldering, and cooling .
• RS-232 interface for data input unit or PC control. An easy-to-use PC software interface for input using a computer, rather than the supplied control box, is included.
• Soldering and Placement Heads:
• The connection for the hot air nozzle temperature sensor is in the soldering head to give you the highest possible hot air temperature accuracy.
• Precision linear feed for vertical adjustment, approximately 3.2" (80 mm) stroke.
• A continuously adjustable depth stop prevents the head from dropping onto the board.
• The head mechanisms are pneumatically damped to give you finer control over the movement of the soldering and placement heads.
• Soldering Head Only:
• A vacuum lift built into the hot air nozzle allows for the automatic desoldering of components. The vacuum tube can be continuously adjusted in height with a 10 mm adjustment range .
• Theta rotation of the soldering head in a range of -5° to 95°. A swiveling halogen light is mounted near the soldering and placement heads in order to illuminate the work space.
• A wide range of easily interchangeable hot air nozzles are available.

Placement Head Only:

• A vacuum receptacle is activated by a button on the front of the placement head.
• A reducer insert for the vacuum receptacle is provided for smaller components.
• Bottom Heater:
• Table is equipped with a high temperature long wavelength infrared ceramic lamp for efficient bottom pre-heat of the PCB.
• The bottom pre-heater is divided into two zones: The 400-watt inner zone is 5"x 5". The 1600-watt outer zone is 10.6" x 10.6"
• The temperature is regulated by thermocouples integrated in the central heater lamp.
• Circuit Board Holder:
• Able to hold circuit boards with a minimum width of 1.2" (30 mm) and a maximum width of 19.5" (495 mm) and unlimited length.
• After positioning the board, a precision drive in the X and Y directions allows you to achieve exact positioning. The adjustment range is + 0.40" (10 mm) with adjustment precision of + 0.002" (0.05 mm). The controls for the precision adjustment are located on the sides of the table.
• Data Input Unit:
• Parameters for each process step, including bottom heater temperature, soldering head temperature, airflow rate, process time, and cooling time can be programmed.
• A LCD display with background lighting gives you a clear, easy-to-read display.
• A key switch is provided to lockout against unauthorized use.
• Up to 30 profiles can be stores in the data input unit

• Applications:
• Rework and repair of SMT array packages including ceramic, and plastic, BGA's, micro BGA's, Chip Scale Packages. PLCC's, and QFP's. Multi-layer boards and ground planes.

WTA50 thermal tweezers and AK51 stand is available with WRS3000ST four function rework station.

Additional Product Features and Benefits:

• Built-in pump provides both air for the hot air tool and vacuum for the desoldering tool
• Microprocessor with digital read-out gives you complete accuracy and reliability.
• Temperature set-back can be programmed with the built-in timer from 5 to 60 minutes in 5 minute intervals
• Air flow for the hot air tool and vacuum for desoldering are activated by a finger switch on the tools.
• Lock-out key to maintain process control for set parameters
• Special ionizing circuit assures that hot air is static free to protect sensitive components

• 300 watts of total power over three independently controlled channels (100 watts per channel) plus air and vacuum ports allows you to use up to three 100-watt tools simutaneously.
• Vacuum delay feature on the desoldering tool allows the solder to reach the solder collection chamber before the vacuum is shut off to avoid clogging.

• Applications:
• Production, rework, and repair of through hole and surface mount boards. Contact removal of IC's and QFP's using specialty SMT tips. Applications requiringnon-contact hot air. Heavy ground planes and multi-layerboards. Lead-free solder applications

• 400 watts of total power over four independently controlled channels (100 watts per channel) plus air and vacuum ports allows you to use up to six tools simutaneously: soldering, desoldering, hot air, and thermal tweezers, dispensing, and vacuum pickup
• Vacuum delay feature on the desoldering tool allows the solder to reach the solder collection chamber before the vacuum is shut off to avoid clogging