equipment sourcebook - Loctite.ph

DISPENSINGDispense SystemsLoctite ® Posi-Link Syringe SystemLOCTITE ® POSI-LINK SYRINGE NESTS Item Numbers: See chartConnects actuator to syringe barrel.Features:• No tool syringe changeover• No contact with adhesive. Disposable syringesare the only component in contact with the adhesive• No adhesive downloading. Directly accepts Loctite®brand pre-filled syringes, plus many other brandsTECHNICAL SPECIFICATIONSAlso available, 98501 –Loctite ® ApplicatorHolder. See page 83.Loctite ® Posi-Link Syringe Nest Selection5 mlSyringe10 mlSyringe25 mlSyringe98643 98644 98645*N/A 98639 98640Used WithLoctite ® Posi-Link 5-25 ActuatorLoctite ® Posi-Link 10-50 Actuator* 98645 can only be used with productviscosity up to 5,000 cP.Use 98379 – actuator and 98640 – nest, for 25 mlsyringes over 5,000 cP. Suitable forhand held applications.PRODUCTLoctite ® Posi-Link Controller Loctite ® Posi-Link 5-25 Actuator Loctite ® Posi-Link 10-50 ActuatorItem Number 98377 98378 98379Power Source 9' communication cable to actuator 100/240 VAC; 47/63 Hz 100/240 VAC; 47/63 HzDimensions 5.375" H x 6" D x 6" W 34" H x 4" D x 5" W 34" H x 4" D x 5" WTotal Weight 2 lbs. 12 lbs. 13 lbs.Dispense Head Weight N/A 0.75 lbs. 1.5 lbs.Air Supply N/A 40 to 100 psi 40 to 100 psiPosi-Link Electro/Hydraulic Tether N/A 7 feet 7 feetMinimum Dispense Volume N/A 0.001 ml 0.001 mlMaximum Dispense Rate N/A 0.4 ml /second 0.4 ml /secondMaximum Cycle Rate N/A 1 cycle per second 1 cycle per secondParts Included(1) Posi-Link Controller(1) Foot Switch(1) Posi-Link Actuator (1) Air Inlet Pressure Regulator/Gauge (1) 110 Power Cord(1) 9' Communication Cable (2) Wall or Table Mounting Bracket (1) Instruction ManualAdditional Information For Spare Parts and Accessories, see pages 84-85.Additional Accessories Sold Separately988896 – Loctite ® Syringe Finger SwitchLoctite® Posi-Link Actuator Functionality DiagramTheory of OperationA disposable syringe is effectively used as a metering piston/cylinder. Because the syringe barrel is of a known and constantdiameter, a given incremental movement of the syringe piston will displace a known volume of adhesive within the syringe barrel.The controller unit is programmable to initiate a dispense cycle at the specific volumetric amount. It controls the electronicsignaling that activates the step motor inside the actuator housing. External air pressure provides constant force on the plungerwithin the dispense head. With the initiation of a dispense cycle, the following 3 events occur simultaneously:1. The step motor rotates a programmed number of revolutions, moving the lead screw,and increasing the hydraulic volume of the stepping cylinder.2. Hydraulic fluid flows from the remote dispense head to the stepping cylinder, releasing the plungerwithin the dispense head to travel downward in a controlled incremental movement.3. As the dispense plunger travels the controlled increment, it displaces (dispenses) a calculated volumeof adhesive from the syringe barrel.AIR PRESSURECONSTANT ONAIR PRESSURECONSTANT ONREMOTEDISPENSEHEADNON-COMPRESSIBLEHYDRAULIC FLUIDENCLOSURESTEPMOTORSTEPMOTORSYRINGE NESTPRE-PACKAGED SETDISPOSABLESYRINGE PISTONDISPOSABLESYRINGE BARREL7 HYDRAULICHOSESTEPPING CYLINDERLEAD SCREWMOTOR[OFF]MOTOR[ON]ADHESIVENO FLOWFLOWDISPOSABLENEEDLEThe RED represents the fluid path.10