1. The Machine(HDPE/LDPE film blowing machine series SJ-50)
The Film blowing machine is used to blow the molten LDPE, HDPE and LLDPE into bubble film. Its products are widely used to pack fruit, food, clothes, textile, daily necessities and other industrial products.
2. Main Technical Variables:
| Model |
SJ-50 |
SJ-55 |
SJ-65 |
Features |
Raw Material |
HDPE, LDPE, LLDPE; Virgin and Recycled |
| Film Width |
600mm |
800mm |
1200mm |
| Output |
30Kgs |
40Kgs |
65Kgs |
| Film Thickness |
0.01mm-0.15mm |
| Dimension |
4×3×4M |
5×3.5×4.5M |
6×4×5.5M |
Extrusion Unit |
Screw Diameter/LD ratio |
50mm
28:1 |
55mm
30:1 |
65mm
30:1 |
| Motor |
11KW |
15KW |
22KW |
| Gearbox |
133 |
146 |
173 |
| Die Head Type |
Fixed Die Head |
| Die Size |
50/80mm |
80/160mm |
160/260mm |
Taking-up Tower |
Upper Tower Type |
Up and down; embossing roller and gusseting |
| Roller Length |
700mm |
900mm |
1400mm |
| Roller Working Way |
Opened and Tightened By Air Cylinders |
Winding Station |
Winder Type |
Single winding fraction type |
| Rollers |
700mm |
900mm |
1400mm |
| Winding Diameter |
650mm |
| Control Panel |
Temperature control |
5 zone |
| Electronics |
Top China Brand |
3. More Detailed Pictures
Based on Zhejiang, we face the whole country, and approach to the world.
General features:
Model: SJ-50
Film width: 100-600mm
Output capacity: around 30kg/h Note: output depends on film width/thickness etc
Power supply: 380V three phase; 50Hz
Raw Material: HDPE/LDPE/LLDPE
Dimension (L×W×H): 4200mm×3000mm×4000mm
Weight: About 1500kg
Extruder unit:
Main motor power: 11kw
Screw diameter: 50mm
Screw L/D ratio of screw: 28:1
Speed of screw: 5-100rpm
Barrel cooling: 1/6 Hp cooling blower
Film thickness: 0.01-0.1mm
Gear Box: model 133
Material of screw and barrel: Alloyed high-quality steel 38CrMoAlA with optimum hardness and strong corrosion resistance after precision finishing and nitrogen treatment
Heaters: stainless heaters and cast aluminum heaters
Heating capacity: 15kw
Fixed inflation head
Inflation Die: 60/80 exchangeable inner die head
Cooling air blower: 3kw
Aluminum Alloy air ring x 1 set (6 air inlet hose)
Take up unit
Film bubble taking up motor: 0.75kw
Steel roller/rubber roller length: 700mm
Take up embossing rollers: 165mm diameter×700mm (L)
Embossing rollers open and close controlled by air cylinder
Guiding roller: 2pcs
Wooden plank bubble supports and A-frame with Gusset device
Tower's height adjusted by motor-rise and fall type
Film taking off speed: 5-40m/min
Film bubble size sensor installed; automatically give more air if bubble size becomes smaller
Ladder and walking board width: 60cm
Single winding station
Winding type: by fraction
Winding motor: 5N/M torque motor
Torque motor controlled by speed adjuster, easy for operation
Friction metal/rubber roller: 220mm diameter×700mm (L)
Maximum winding diameter: 600mm
Shaft for film roll changing: 2pcs
Control Panel
1. Temperature of barrel and die head controlled by digital temperature controller
2. Inverter controls main motor driving speed and film taking up motor running speed
3. Electronics used are all Chinese top brand
4. Current meters and Voltage meters show the working state of motors
5). Small fan installed to avoid high temperature caused by long time running
Free spare parts:
1. heater band for barrel: 2pcs; 2. heater band for die head: 1pc; 3. heater band for screen changer: 1pc; 4. heater band for rotating unit (if it is rotary die head): 1pc; 5. thermocouple: 2pcs;
6. Voltage meter: 2pcs; 7. Current meter: 2pcs; 8. AC contactor: 2pcs; 9. Blue pipe for air blower: 1set; 10. Blue pipe for rotary air ring (if it is rotary die head): 1set; 11. Belts for main motor: 1set
12. Red/green buttons and other switches: 2pcs each; 13. one set of tools for maintenance
14. carbon brush for rotary die head: 1set; 15. temperature controller: 1pc
4. High-quality Machines
Ruian Songshan Machinery is studying and adopting international standards and industry-leading technology to create high-quality film blowing machine and high-speed bag making machine, and flying high around the world with "integrity, responsibility, innovation and dedication".
5. Workshop& Warehouse
Ruian Songshan Plastic Machinery Co., Ltd. Was founded in 1995, located in beautiful scenery city-Rui'an near east sea. With mature technologies and abundant manufacturing experiences, Songshan is a qualified plastic machinery manufacturer that specializes in making all kinds of sealing & cutting machine, all kinds of blown film extruder and all kinds of plastic recycling machine. It is integrated manufacture, sales and after sales.
6. Delivery& Package
With advanced technologies, good quality and perfect after-sales service, our all products are far distributed to Russia, Iran, India, Malaysia, South Africa, Indonesia, and Algeria and so on.
7. After Service
Delivery Date: 30 days after deposit
Guarantee: One year. (Also, we will offer you our best after service after one year warranty period as you will afford our technician's cost which includes his visa, air ticket, hotel, food and also their salary USD80 per day per person.)
8. The quality creates the brand.
Since "Songshan" establishment, it has become one of the most advanced plastic machinery manufacturer in Zhejiang. We place great emphasis on research and development and search for new and better way to improve our machine.
Dear friends:
This is Anna, from Sales Department of Ruian Songshan Machinery. If you have any questions about our machines or you're interested in our high output film blowing machines or high-speed bag making machines, please be free to contact with me by email, whatsapp or wechat.
Audited Supplier 
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