Резюме Shrink film packaging gets its strength from heat, not from how hard the operator pulls. A shrink line wraps long profiles or timber bundles in a film sleeve and sends them through a heat tunnel, where the film shrinks tight around the shape. Tunnel size, film width and conveyor speed are configured per project.
Содержание
- What shrink wrapping does
- When shrink fits the line
- How the shrink line runs
- The film sleeve
- The heat tunnel
- Подготовка пакета
- Типичная конфигурация
- Что показано на видео
- Контрольный список выбора оборудования
- Контроль и безопасность
- Часто задаваемые вопросы по инженерным вопросам
- Следующий шаг
- Связанное чтение
- Источники и стандарты
What shrink wrapping does
A shrink sleeve fits loosely over the bundle and then tightens in the heat tunnel until it presses against every face. The result is a skin-tight cover that keeps dirt and moisture off the goods and holds the bundle together through handling.
Because the film conforms to the actual shape, shrink wrapping suits bundles with uneven faces and protrusions that a flat stretch wrap would leave exposed.
When shrink fits the line
Shrink film packaging suits long-profile and timber lines that want a full protective cover rather than a tensioned film layer. It shows its value where goods travel on open flatbeds and the cover has to stay put. It also suits bundles where the filmside faces out to customers as part of the finished look.
For bundles that need both a skin-tight cover and high clamping force, a shrink station can run ahead of or behind a strapping stage. Placement is selected per project from whether bundle compaction or external weatherproofing is the priority.
How the shrink line runs
- The bundle moves into a sleeve-applying station and the film is pulled over it.
- The open sides are sealed to form a loose sleeve around the bundle.
- The bundle enters the heat tunnel on the conveyor.
- Heat shrinks the film tight against the faces and edges.
- The finished bundle cools on the outfeed and is racked or loaded.
The film sleeve
| Параметр | Практика |
|---|---|
| Ширина пленки | sized to the bundle perimeter, confirmed per project |
| Класс пленки | shrink film selected for bundle weight and edge durability |
| Sleeve overlap | sealed on the open side to close the cover |
| End coverage | film pulled over the ends so no face is left exposed |
The heat tunnel
The tunnel heats the film evenly as the bundle passes through. Conveyor speed is set so the bundle spends the right time in the heat zone: too fast and the film does not shrink fully, too slow and the film over-shrinks or sticks. Temperature and speed are set per bundle type in the panel program.
Подготовка пакета
The cleaner the bundle, the cleaner the shrink. In our line integration we require operators to square bundle ends so the sleeve pulls over without catching, and to keep prior strapping flat against the faces. Sharp edges are padded beforehand so the shrink film does not tear on them.
Типичная конфигурация
Приведенные ниже данные представляют собой типичные начальные параметры для данного класса машин и подтверждаются в каждом конкретном проекте.
| Параметр | Типичный диапазон, подтвержденный для каждого проекта. |
|---|---|
| Длина пачки | отрезок линии от 1 до 12 м |
| Ширина туннеля | sized to the widest bundle |
| Скорость конвейера | matched to the heat dwell per bundle |
| Класс пленки | shrink film selected for the application |
| Электроснабжение | Трехфазное напряжение 380 В, 50 Гц, или однофазное напряжение 220 В, выбирается в зависимости от проекта и потребностей электроснабжения предприятия. |
Что показано на видео
The footage shows a shrink packaging line processing long bundles in a production bay. It is a general demonstration, so tunnel width, film width and conveyor speed for your bundles are confirmed with us per project.
Контрольный список выбора оборудования
| Вопрос | Подтверждать по каждому проекту |
|---|---|
| Longest bundle | sleeve station and tunnel length |
| Widest bundle | film width and tunnel opening |
| Вес пачки | conveyor rating |
| Класс пленки | shrink film match to goods and transport |
| Линейная скорость | количество связок в час по вашей скорости отгрузки |
| Электроснабжение | напряжение, фаза и частота на объекте |
Контроль и безопасность
The panel holds a program per bundle type, with tunnel temperature, conveyor speed and seal settings. Guarding covers the sealing station and the tunnel mouth; keep clear while the line runs. Emergency stop is fitted at the panel. Film threading and seal adjustments follow the machine manual.
Часто задаваемые вопросы по инженерным вопросам
Q: How does profile shrink wrapping differ from orbital stretch wrapping? A: Stretch film is pulled tight by tension; shrink film is fitted loose and tightened by heat to conform to the bundle shape.
Q: Can a shrink station run before strapping? A: Yes. A shrink cover and a strap stage can be combined; the sequence is set per line.
Q: What film does it use? A: Shrink film of a grade suited to the bundle; width and thickness are confirmed per project.
Q: How is tunnel temperature set? A: Per bundle type in the panel program, matched to film grade and conveyor speed.
Q: Does it suit uneven bundles? A: Yes. The film conforms to the shape in the tunnel, which is where shrink wrapping differs from a flat stretch wrap.
Следующий шаг
- Email us at info@fhopepack.com with your bundle sizes, film grade and outfeed rate.
- We send tunnel sizes, film options and a layout drawing within 48 hours.
- We arrange a site survey to confirm the line fits your bay.
Связанное чтение
- Shrink packaging machine for door and panels
- Wooden timber wrapping and strapping machine
- Горизонтальный орбитальный стретч-пленкообмотчик для алюминиевых профилей
- Линейки продукции упаковочного оборудования FHOPE
Источники и стандарты
- ISO 12100:2010 — Безопасность машин и оборудования. Общие принципы проектирования, оценки рисков и снижения рисков.
- EN 415-10:2014 — Безопасность упаковочных машин. Общие требования.
- EN ISO 13849-1:2023 — Безопасность машин. Компоненты систем управления, обеспечивающие безопасность.
- FHOPE shrink packaging line demonstration video. Reviewed as a general demonstration; tunnel width, film and conveyor settings confirmed per project.
Последнее обновление: 21.09.2026
