For converters who need to print a simple logo or brand mark directly on the film as it is being produced, KINGPLAST offers the HDPE LDPE LLDPE Film Blowing Machine with Online Printing Unit. As a China-based manufacturer with years of hands-on experience in film extrusion equipment, KINGPLAST designs this integrated line so that a one-color printing unit works in sync with the film blowing process, removing the need for a separate printing pass and helping factories keep both floor space and operating costs under control. The machine handles HDPE, LDPE and LLDPE resins and is available in five extruder models, from KP-N45 to KP-N65, with film widths from 100 mm up to 1200 mm.
The HDPE LDPE LLDPE Film Blowing Machine with Online Printing Unit combines two normally separate operations into one continuous production flow. Instead of blowing film on one machine and then feeding the rolls to a separate printer, the extruder, die head, take-up unit and online print station are mounted on one frame. A one-color printer is positioned so that it applies the design onto the film while the bubble is still moving through the line.
This setup suits producers who want to:
1. Print a simple logo or brand mark: Ideal for bags, liners and packaging film where a single-color mark is enough.
2. Cut down on machinery investment: One machine replaces a blowing line plus a separate printing machine.
3. Reduce handling steps: The film does not need to be unloaded, stored and reloaded before printing.
4. Save factory space: A single compact line takes up far less room than two separate machines.
The result is a straightforward production route for businesses that need printed film but do not want the cost and complexity of a full flexo or gravure printing line.
KINGPLAST has focused on making this HDPE LDPE LLDPE Film Blowing Machine with Online Printing Unit practical and affordable rather than over-engineered. The main benefits come from three areas: cost control, ease of operation and responsive service.
1. Low production cost: By combining blowing and printing in one pass, the machine reduces the number of equipment units needed, which lowers electricity consumption, labor requirements and general operating expenses. This makes it a realistic entry point for new factories or for established producers adding a printed-film capability without a large capital outlay.
2. Simple operation: The control panel is laid out for straightforward use. Temperature controllers, inverters for the main motor and take-up, plus an ammeter and voltmeter are grouped together, so new operators can learn the machine quickly. The online print unit is equally simple to set and adjust.
3. Responsive customer service: KINGPLAST responds to every inquiry within 24 hours. For a machine like this, where setup and running questions often come up in the first weeks, fast replies matter.
4. Resin flexibility: The same machine runs HDPE, LDPE and LLDPE, so producers can switch between materials as market demand changes without buying a second line.
5. Model range to match output needs: With five models from KP-N45 to KP-N65 and drive motors from 11 kW to 30 kW, there is a configuration for small workshops as well as mid-sized factories.
The table below lists the main parameters across the five available models. All models share the same screw L/D ratio of 30:1 or 32:1, a bimetallic screw, and a cylinder made from SACM-645 or 38CRMOALA. Film thickness ranges from 0.009 mm to 0.05 mm for HD and 0.02 mm to 0.15 mm for LD on the smaller models, with wider ranges on the larger units.
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Model |
KP-N45 |
KP-N50 |
KP-N55 |
KP-N60 |
KP-N65 |
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Suitable material |
HDPE LDPE LLDPE |
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Film width(mm) |
100-500 |
300-600 |
400-800 |
500-1000 |
600-1200 |
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Film thickness(mm) |
HD |
0.009-0.05 |
0.009-0.15 |
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LD |
0.02-0.15 |
0.03-0.15 |
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Max.Extrusion output(kg/hr) |
HD |
35 |
40 |
50 |
55 |
65 |
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|
LD |
40 |
45 |
60 |
70 |
80 |
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Extruder |
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Screw diameter(mm) |
φ45 |
ф50 |
ф55 |
Ф60 |
ф65 |
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Screw L/D length |
30:1/32:1 |
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Screw material |
Bimetallic |
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Cylinder material |
SACM-645/38CRMOALA |
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Cylinder cooling |
250wx2 |
250wx2 |
370wx2 |
370wx3 |
550wx2 |
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Driving motor(kw) |
11 |
15 |
18.5 |
22 |
30 |
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Temperature control |
3 |
3 |
3 |
3 |
4 |
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Type of die |
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Die size(mm) |
HD |
ф60/80 |
ф80/100 |
ф100/120 |
ф100/120 |
ф100/150 |
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LD |
ф100/120 |
ф120/150 |
ф180/200 |
Ф200/220 |
ф220/ 250 |
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Temperature control |
3 |
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Air ring |
1 pcs |
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Air blower(kw) |
2.2 |
3 |
3 |
4 |
5.5 |
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Center steady stick |
1 |
|
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Take-up unit |
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Roller width(mm) |
ф165×600 |
ф165×700 |
ф165×900 |
ф165×1100 |
ф165×1300 |
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Height adjustable type |
/ |
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Take-up speed(m/min) |
10-100 |
10-100 |
10-80 |
10-80 |
10-80 |
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Take-up motor(kw) |
0.75 |
1.5 |
1.5 |
1.5 |
2.2 |
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Winding unit |
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Type |
Surface friction type |
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Winding motor(N.m) |
10 |
10 |
10 |
16 |
16 |
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Winding speed(m/min) |
10-100 |
10-100 |
10-80 |
10-80 |
10-80 |
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Because different factories run different materials and downstream processes, KINGPLAST offers several optional add-ons for the HDPE LDPE LLDPE Film Blowing Machine with Online Printing Unit. These allow buyers to match the machine more closely to their own production requirements.
1. Auto-loader: For continuous resin feeding and reduced manual intervention.
2. Corona treater: Improves ink adhesion on the film surface, which is useful when the online printing unit is used on non-porous films.
3. Rotary die head: Helps distribute thickness more evenly around the bubble.
4. Double winder: For operations that need two rolls running at once.
5. High speed screen changer: Allows filter changes without stopping the extrusion process.
Each of these options is selected at the order stage, so the machine can be configured for a specific resin mix, film width or printing requirement.
The Blowing Machine with Online Printing Unit is built from four main sections, each with a clear role in the production flow. Understanding these parts helps buyers see how the machine fits into their existing workshop and what maintenance it will need.
1. Extruder: This section includes the screw and barrel, the main motor, the die head and the air blower. The screw is bimetallic and the cylinder is made from SACM-645 or 38CRMOALA, materials chosen for wear resistance over long production runs. The die size varies by model, from φ60/80 up to φ220/250 depending on whether HD or LD film is being produced.
2. Take-up unit: Roller width ranges from φ165×600 to φ165×1300 across the five models. Take-up speed runs from 10 to 100 m/min on the smaller units and 10 to 80 m/min on the larger ones. The take-up motor ranges from 0.75 kW to 2.2 kW. Buyers can choose between rubber roller plus Embassy roller, rubber roller plus steel roller, or a reducer plus torque motor arrangement.
3. Winder unit: This is a surface friction type winder. Winding torque is 10 N.m on the first three models and 16 N.m on the KP-N60 and KP-N65. Winding speed matches the take-up speed range. The winder can be configured with rubber roller plus steel roller and a banana roller, with speed control through a torque meter or inverter.
4. Electricity box: The control cabinet houses the temperature controllers, inverters for the main motor and take-up, an ammeter and a voltmeter. Temperature control zones number three on most models and four on the KP-N65.
Together, these components form a line that is compact enough for a small factory yet capable of running continuously at output levels from 35 kg/hr up to 80 kg/hr depending on model and resin.
The HDPE LDPE LLDPE Film Blowing Machine with Online Printing Unit is aimed at a specific type of buyer rather than the whole market. It fits best with:
1. New film producers: Factories starting film production that need blowing and simple printing but cannot justify two separate machines.
2. Budget-conscious workshops: Businesses that want printed film without the expense of a full printing line.
3. Producers of branded packaging: Companies making bags, liners or packaging film where a single-color logo is enough for brand recognition.
4. Factories with limited floor space: Operations where an extra printing machine would take up room that is not available.
5. Converters testing a new product line: Businesses that want to trial printed film before investing in higher-end printing equipment.
Because the machine runs HDPE, LDPE and LLDPE, it also suits producers who serve several end markets and need to switch materials without changing equipment.
KINGPLAST is a manufacturer based in Ruian, Zhejiang Province, China. The company builds film blowing machines, bag making machines, printing machines and recycling machines, and exports to buyers in multiple countries. For this product, the key reasons buyers choose KINGPLAST are practical rather than promotional.
1. Factory direct supply: Buying from the manufacturer means no middle-layer markup and clearer communication about specifications and lead times.
2. Established product range: The KP-N series sits within a wider line of film blowing machines, so spare parts and technical support come from the same source.
3. 24-hour response: Inquiries are answered within one day, which shortens the time between first contact and a working machine.
4. Verified business location: The factory is at Bailian Industrial, Ruian City, Zhejiang Province, China, and can be contacted by phone or email.
5. Practical design focus: The online printing unit is added specifically to meet the need for simple logo printing at low cost, rather than as a general-purpose feature.
Once the machine arrives, the priority is getting it running correctly. KINGPLAST supports buyers through the setup and early production period.
1. Operating guidance: The control panel is organized so that temperature, drive and take-up settings are easy to read and adjust. New operators can learn the machine quickly because the layout follows the production flow.
2. Direct contact: Buyers can reach the company by phone at +86-18868259555 or by email at xb@kingplastmachine.com for technical questions.
3. Spare parts: Because KINGPLAST manufactures the full film blowing machine line, replacement parts such as screws, barrels, rollers and heating elements can be supplied from the same factory.
4. Inquiry response: Every request receives a reply within 24 hours, whether it concerns a new order, a technical issue or a spare part.