Wenzhou Zhongqi Machinery Co., Ltd. is one of the leading manufacturers and suppliers of pp film blowing machine in China. Please feel free to buy the newest pp film blowing machine made in China here from our factory. All customized machines are with high quality and competitive price.

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Part name	Technical parameter
LFSJ一50 Single Screw Extruder
Harden Gear box	LYZD- 173 Harden gear box	Gears: precision turning, quenching and tempering, carburizing and precision grinding of tooth surfaces Gearbox lubrication method: forced oil circulation lubrication Gear material: Low carbon alloy steel 20CrMnTi The high-speed bearing adopts Dalian Metallurgical brand bearings There is no oil leakage in the gearbox,
Screw and barrel	SJ-50 Screw	Keywords quenching and tempering, nitriding treatment; spraying alloy; Nitriding depth: > 0.6 mm, nitriding hardness ≥ 960; The feed section is longitudinally slotted to increase the extrusion amount. Meanwhile, the plasticizing time of raw materials in the barrel is long and the plasticizing effect is better. Low speed can reduce the wear of barrel and screw and prolong the service life
Screw material	Alloy steel
Screw ratio	33: 1
Screw rotation (r/min)	0～120
Maximum width	800
Minimum width	300
Thickness	Single 0.06-0.12
Material	LDPE/HDPE/Biodegradable etc.(dependsoncustomers choice)
Production kg/H	25-85kg/h
Coolng blower	3 Phase blower 360W X3

Heating rings+		Ceramic heating ring		Made in China
Main motor		Three phase motor 18.5kw		NanHe
Inverter controller		18.5 KW		Inovance
total power(kw)		50(kw)
Cover		Whole part
Flange of the die head		Push in type
Heating ring of the die head		Ceramic heating ring		Made in China
Temperature controller		Double digital		Huibang
Colors of the painting		Parchment
Feeding mode		Auto feeding(Option)		Made in China
	die head
	Diameter ofthe rotative die head		Φ150-200 rotative die head		The mold adopts CAD/CAM optimization design, CNC four axis CNC machining center precision machining, ensuring the reasonable administrative principles and scientific nature of the structure, making the flow channel smooth without dead corners, and evenly distributing, thereby ensuring good thickness uniformity of thin film products The mold material is made of 40CR quenched and tempered alloy steel, and there is no need to adjust the thickness of the mold head for secondary film blowing. The interior is treated with secondary mirror electroplating, which improves the hardness of the material and eliminates its internal stress through forging and heat treatment, ensuring that the structure and size of the mold remain stable for a long time and do not deform during use

Cooling device
Air ring device	Double Lip High Speed Air Ring	Wind ring=double drying channel maze type wind ring, made of cast aluminum material, maze wall blocking type, lower layer light pressure dam type, upper layer horn dispersed type, inner hole of wind ring 260mm (to be determined),
Cooling blower	5.5kw	Dedong,Made in China
Temperature way	Double digital
Rewinder roller structure	Single rewinding with air shaft 1: Single collection roll 2: Friction flat winding 3: Roll up rubber roller: diameter 260mm, made of natural rubber material	Inovance inverter control
Rewinder roller size	900MM
Rewinder roller quality	Metal
Roll alternation way	Artificially changes reels
Colors of the painting	Parchment
Attachment
weight	3500kg
Machine size	520035005200mm
Other accessories	Electronic components and buttons	CHINT
	High temperature air duct	Red Grade
	Solid-state relay	FOTEK,made in Taiwan
	Thermostat	Huibang,,made in China

PRODUCTS FEATURE

The LFSJ-50/800 High Speed Film Blowing Machine is an upgraded high-efficiency single-screw film extrusion equipment independently developed for high-output, energy-saving film production scenarios. This LFSJ-50/800 High Speed Film Blowing Machine is specially optimized for high-speed stable operation, greatly improving production capacity while maintaining excellent film quality, which is the preferred upgraded model for mass film manufacturing.

This LFSJ-50/800 High Speed Film Blowing Machine is equipped with a 50mm diameter high plasticizing screw, supporting a maximum effective film width of 800mm, and can process LDPE, HDPE, LLDPE and other polyethylene raw materials efficiently. Compared with ordinary standard models, this high speed film blowing machine features faster extrusion speed, more uniform melt plasticization, more stable film bubble operation, and lower unit energy consumption, effectively helping customers reduce production cost and increase daily output.

The machine body adopts an integrated thickened heavy-duty steel structure, with strong vibration resistance and long-term durability. The LFSJ-50/800 High Speed Film Blowing Machine is equipped with brand frequency converter stepless speed regulation, precise automatic constant temperature control system and optimized air cooling structure. It realizes simple operation, low manual intervention, extremely low failure rate and easy daily maintenance. Optional upgraded configurations include automatic deviation correction, automatic tension control, IBC internal bubble cooling and automatic roll changing winding device, to achieve fully automatic continuous high-speed production.

Finished films produced by this LFSJ-50/800 High Speed Film Blowing Machine feature uniform thickness, high tensile strength, soft and smooth surface, good transparency and neat rolling effect. The produced films are widely used to make T-shirt shopping bags, flat bags, garbage bags, food packaging bags, industrial packaging films, protective films and various printing base films. It is widely applicable to packaging factories, plastic product processing plants, supermarket bag manufacturers and other industrial production enterprises all over the world. With outstanding running stability, high production efficiency, excellent finished product rate and reliable after-sales service guarantee, this high speed film blowing machine has won wide trust and praise from global buyers.

OUR SERVICE

We will provide more precisely and efficiently manufacture and serve according to clients' request..

We have professional QC team to ensure your product better.

Check the raw material before starting production.

Have the random inspection during the processing.

Make the 100% inspection before the shipments.

provides one year service for products it provided, to create value for customers.

OUR ADVANTAGE

Founded in 2006, Zhongqi Company possesses extensive expertise in export operations, backed by over 20 years of experience in the field.

We hold more than 60 patent certifications and are supported by a professional R&D technical team.

Our products are exported to over 60 countries worldwide.

FAQ

Q: How does your factory handle quality control?

A:Quality is our paramount principle. At Changcheng, we have always placed the utmost importance on quality control, maintaining a meticulous approach from start to finish. Our factory is ISO and CE certified.

Q: Regarding warranties-can your engineers provide overseas service?

A:We offer a one-year warranty. During this period, should any issues arise with the machine, our engineers are available to travel abroad to perform repairs for you.

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