Fully-auto L Bar Sealer & Shrink Tunnel

This Fully-auto L-Bar Sealer & Shrink Tunnel integrates a standard L-shaped sealing and cutting main unit with a small constant-temperature shrink tunnel, primarily designed for stable mass production of small-sized standard boxes. It's a versatile automated machine suitable for small to medium-batch packaging. The equipment performs automatic feeding, film wrapping, L-shaped sealing and cutting, and hot air shrinking in a continuous, integrated process. The finished product has a smooth, scorched edge, providing comprehensive protection against scratches, moisture, and dust accumulation during transport. The fully automated process effectively reduces manual packaging costs, and the standardized sealing and cutting process ensures a consistent packaging appearance, completely solving problems such as uneven sealing and film scorching caused by manual operation.

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Key Features:
Visualized Scale Adjustment Design: All adjustment parts are equipped with clear scales, making size adjustments intuitive and precise. Even beginners can quickly switch specifications, reducing waste of consumables during trial runs.

Optional Push-and-Lay Device: A kissing push-and-lay mechanism can be added to ensure neat and even lamination of multiple combined products, preventing misalignment and loosening during packaging, suitable for packaged products.

Imported Bidirectional Detection Sensors: Equipped with American Banner horizontal and vertical sensors, easily identifying ultra-thin and miniature workpieces, allowing for product switching without manual mechanical modifications.

Automatic Anti-Cut Protection for the Cutting Blade: The sealing blade features a built-in safety sensor that automatically locks when no workpiece is present, preventing empty cuts and accidental cuts, protecting the equipment and reducing film wear.

Teflon Alloy Sealing Blade: The sealing blade uses an alloy steel base material with a DuPont Teflon non-stick coating, providing high-temperature resistance and non-stick film, ensuring crack-free, charring-free, and smoke-free sealing, resulting in clean and pollution-free production.

Constant Temperature Sealed Shrink Tunnel: Independent and precise temperature control, uniform hot air circulation, compatible with POF shrink film, ensuring a tight fit to the product, achieving dustproof, moisture-proof, and scratch-proof protection; the entire machine is equipped with multiple overload and jamming safety protections, extending the machine's service life.

Applications: Widely used in small food gift boxes, beauty sets, books and brochures, stationery sets, small digital accessories, daily necessities, small hardware items, cultural and creative gifts and other well-packaged products. Suitable for automated wrapping production of small single items or combination sets in small processing plants, e-commerce packaging workshops, beauty repackaging plants and printing shops.

Parameter SF-300LAC SF-400LA SF-400LAC SF-500LA SF-600LA SF-4525
Model SF-300LAC SF-400LA SF-400LAC SF-500LA SF-600LA SF-4525
Power 2.2kw 2.0kw 2.3kw 2.5kw 3.4kw 9kw
Power Supply AC220V 1/3PH 50/60HZ AC220V 1/3PH 50/60HZ AC220V 1/3PH 50/60HZ AC220V 1/3PH 50/60HZ AC220V 1/3PH 50/60HZ AC220/380V 3PH 50/60HZ
L-bar Blade Size 350 × 260mm 550 × 450mm 550 × 450mm 650 × 550mm 800 × 700mm /
Packing Size L × W × H L+H≤330mm L+H≤530mm L+H≤530mm L+H≤600mm L+H≤780mm Chamber Size
W+H≤240mm H≤135mm W+H≤430mm H≤135mm W+H≤430mm H≤135mm W+H≤500mm H≤150mm W+H≤680mm H≤150mm 1000 × 450 × 250mm
Packing Speed 15m/min. 15m/min. 15m/min. 15m/min. 15m/min. 0~20m/min.
External Air Source 5~8 bar 5~8 bar 5~8 bar 5~8 bar 5~8 bar /
Shrink Film POF/PE POF/PE POF/PE POF/PE POF/PE POF
Machine Size L × W × H 1442 × 685 × 1538mm 1785 × 850 × 1450mm 1785 × 850 × 1450mm 2065 × 1085 × 1600mm 2240 × 1185 × 1600mm 1300 × 720 × 1500mm
Crate Size L × W × H 1540 × 785 × 1690mm 1890 × 950 × 1700mm 1900 × 950 × 1650mm 2165 × 1185 × 1750mm 2340 × 1285 × 1750mm 1630 × 820 × 1300mm
Gross / Net Weight 423/393kgs 480/450kgs 495/465kgs 575/525kgs 605/550kgs 315/245kgs
Why Kuko
Shanghai KUKO Packing Machinery Co., Ltd.

Founded in 2004 and headquartered in Sheshan Town, Songjiang District, Shanghai, Shanghai KUKO Packing Machinery Co., Ltd. is a dedicated manufacturer specializing in the R&D and production of fully automatic sleeve labeling and heat shrink packaging equipment.

Our extensive product portfolio covers low, medium, and high-speed series, boasting over 200 models tailored to meet diverse industry requirements and production capacities. Engineered for 24/7 stable continuous operation, our machines feature seamless MES system integration and comply with stringent international production standards.

To ensure precision and efficiency, we employ advanced manufacturing facilities, including German IPG high-precision laser cutters and imported high-accuracy servo bending machines. To support our expanding operations, we operate two modern production bases in Kunshan Zhouzhuang Industrial Park and Shanghai Sheshan Industrial Park, with a total workshop area of 34,000 square meters, ensuring robust large-scale and standardized production capabilities.

With over two decades of industry expertise, KUKO has earned recognition as a Shanghai High-Tech Enterprise and a "Specialized and Sophisticated" Enterprise. We hold ISO9001 and EU CE certifications, along with numerous invention and utility model patents.

Committed to long-term partnerships, we serve a wide range of industries, including food, daily chemicals, electronics, logistics, pharmaceuticals, and furniture. Backed by reliable quality and professional service, KUKO is dedicated to helping clients boost efficiency, reduce costs, and provide stable packaging equipment and technical support for partners worldwide.

Certificate Of Honor
  • UDEM Heat Shrink Packaging Machine CE Certificate of Conformity
  • UDEM Conveyor CE Certificate of Conformity
  • ISO 14001 Environmental Management System Certificate
  • ISO 9001 Quality Management System Certificate
  • Certificate
  • Certificate
  • High-Tech Enterprise Certificate
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