Maximize employee productivity with Heat Seal’s Automatic L Bar Sealer. This automatic wrapping packaging machine wraps up to 30 packages per minute. Flexible and reliable the automatic L sealer offers 10 product presets for quick and easy product change. The HDSA-1721 has a 17” by 21” seal area, with a universal hot knife coating – flexible for shrink wrapping, poly bagging on essentially all film types.
This reliable Automatic L Bar Sealer provides a quality packaging solution and will help lower applied packaging costs. Designed to integrate with Heat Seal's Belted Infeed Conveyor IC-1772 and Shrink Tunnel T-3417 for a complete automatic shrink system.
Siemens PLC Controlled with Intuitive Touchscreen Controls
Stores up to 10 Products Setup Recipes
220 VAC, Single Phase Power
Choose Horizontal or Vertical Product Detection
17” W x 21” L Seal Area Accepts Packages up to 4 3/4” H
Industrial Coated Hot Knife Seal Bars with Digital Temperature Controls
Motorized Seal Height Adjustment
Tool-less Change Over with Scaled Adjustments Throughout
Interlocked Safety Guarding
Includes Easy Load Film Cradle with Power Unwind, Film Perforating Rollers and Static Eliminator
Rigid Carbon Steel Construction with Durable Polyurethane Painted Finish
Includes Casters and Leveling Pads
Designed to Integrate with Heat Seal’s IC-1772 Belted Infeed Conveyor and T-3417 Shrink Tunnel
One Year Warranty
Machine Specs & Options
Max. Package Dimensions: 2” - 16” W (5 - 41 cm W), .13” - 4.75” H (.3 - 12 cm H), 4.0” L Min. (10 cm L)
Film Capacity: 22” Center Folded, up to 44” with Optional Center Folder (55 cm) (110 cm)
L Bar Seal Area: 17” W x 21” L (45 W x 55 cm L)
Conveyor Speed: 70 ft./min. (21 m./min.)
Overall Dimensions: 72” L, 38” W, 60” H (183 L, 97 W, 152 cm H)
Working Adjustable: 32”- 36” H
Height: (81 - 91 cm H)
Power Requirements: 220VAC, Single Phase, 50/60 HZ, 8 A
Air Requirements: 2 cu.ft./min. @ 80 psi (.085 cu.m./min. @ 5.5 kg./sq.cm.)
Net Weight: 1020 Lbs.
Indexing Motion Profile With Stop Sensor (Option with Flighted Infeed Conveyors)
T-3417/8 LDR - 17" W x 8" H Chamber Opening, 220V 1 phase
Automatic L Sealer System running electrical products
The automatic L sealer shrink tunnel combo system is shown running a variety of electrical parts. The system includes infeed conveyor, automatic L sealer and shrink tunnel.
Automatic L Sealer with Variety of Products
Heat Seal's Automatic L Sealer, Shrink Tunnel Combo System has horizontal and vertical eyes to detect different size packages, a closing conveyor to accept small packages, and automatically wraps up to 30 packages per minute.
Threading the Automatic L Sealer
Threading the Automatic L Sealer
Automatic L Sealer running sandwiches
See the automatic L sealer running sandwiches on an FDA approved infeed belt.
Auto L with Flighted Infeed three packs
The Automatic L Bar Sealer shown with Flighted Infeed to collate products before sealing and shrinking package.
Automatic L Sealer running two pack egg cartons
Our automatic L bar sealer HDSA1721 and T3417 shrink tunnel, running two packs of egg cartons.
Automatic L running lunch trays
Heat Seal at Pack Expo 2013 Automatic L running lunch trays
MAKE SURE ALL POWER HAS BEEN SHUT OFF AND DISCONNECTED AND ELEMENTS HAVE COOLED BEFORE SERVICING THE ELEMENTS TO PREVENT PERSONAL INJURY TO THE SERVICE TECHNICIAN AND DAMAGE TO EQUIPMENT. QUALIFIED SERVICE TECHS SHOULD PERFORM THIS SERVICING.
When replacing an old heater rod with a new heater rod assembly, the element should be removed as well as the cable assemblies going to the terminal block underneath the product tray.
Removal of the cable assemblies from the arms will require disconnecting the rigid conduit and flex conduit from the seal arm assembly.
To remove the element from the front seal bar, loosen the set screw and loosen the wire fasteners to slide out the element and cable assembly.
Thermocouple wires require re-threading with the cable assembly of the elements.
For the side seal bar, loosen the wire fasteners, set screw, bracket and the acorn nut to slide the element out. With the preceding steps complete, reassembly of the new elements, cable assemblies and thermocouple wires re-threading can begin.
NOTE: Tag the front seal bar and side seal bar wires and cables for reference.
For re-assembly of the side element rod, insert rod into seal bar and tighten the set screw, reassemble seal bar to arm by re-tightening the acorn nut and wire fasteners. For the front heater rod, insert the rod into the seal bar and re-tighten the set screw and wire fasteners.
With the side and front heater rods in place, the cable assemblies and thermocouple wires can be threaded into the rigid and flexible conduit.
NOTE: Re-thread thermocouple wires and cable assemblies simultaneously.
With the front cable assembly and thermocouple wires inserted up to the elbow, re-thread the side wires through the ½ inch hole on the elbow. Then re-thread all thermocouple wires through the flexible conduit.
After all the cable assemblies and wires are through the flexible conduit, reinsert into the control housing and reconnect to the terminal block.
BEFORE YOU BEGIN Make sure to disconnect air if present and electrical power to the machine before adjusting the sealing arm. Then remove the covers covering the arm shaft. Loosen the clevises for the air cylinders from the arm shaft.
ADJUSTING THE SEAL ARM
Adjust the arm springs so the arm just opens and stays in the open position by:
Putting a lever arm in the hole in the arm shaft that is at least 24 inches long.
Pull the lever towards the front of the machine to close the arm.
While holding the lever tightly, loosen the 3/4” nuts on the arm casting. (Requires two people)
To increase the opening force, rotate the arm shaft with the lever in the direction that will close the arm.Re-tighten the 3/4” nuts on the arm castings. Torque to 35 lb. per ft.
Adjust the open stop to the desired maximum open position.
Make sure the arm is all the way open and the cylinder fully retracted.
Check that the cylinder is perpendicular to the arm shaft, then tighten the clevis on the shaft.
Verify that the arm will easily close all the way. Do this by carefully pulling the arm down (the air should still be disconnected). If the arm feels smooth all the way down to the arm’s sealing position and there is less than 2 3/4 inches of the shaft extending out from the cylinder, then the arm is ok.
If the arm will not close all the way, the maximum open position will need to be decreased. Loosen the cylinder clevis (see item 3) on the shaft, decrease the maximum position by changing the open stop, and repeat the procedure from the “adjust open stop” step listed above.