The Online Rope Threading Bag Machine integrates film unwinding, sealing, punching and automatic rope threading in one process, realizing one-step forming of drawstring bags. It supports bag width 200–800 mm, production speed up to 50–140 pcs/min, effectively eliminating separate rope threading procedures and cutting labor costs for packaging enterprises.
Equipped with independent temperature control for upper and lower sealing knives and continuous punching mechanism, the Online Rope Threading Bag Machine maintains stable running even at high speed. It adopts servo feeding + photoelectric tracking, with positioning accuracy within ±0.5 mm. Compatible with HDPE, LDPE, LLDPE and recycled film, it meets diversified production demands of garbage bags and storage bags.
With large-diameter unwinding rack, pneumatic material loading and automatic stop protection for material breakage, the Online Rope Threading Bag Machine minimizes frequent roll changes and downtime. It supports online adjustment of punching and rope threading positions without shutdown, improving overall equipment efficiency and bringing obvious economic benefits to plastic bag manufacturers.
Ruian Mingfeng Machinery Co., Ltd. is a professional manufacturer located in Ruian, Zhejiang, China.
We focus on R&D and production of plastic packaging machinery, including bag making machines, film blowing machines, slitting & rewinding machines, printing machines and plastic recycling machines.
We implement strict quality control throughout production. We support OEM & ODM customization to satisfy different production requirements. Our machines are widely exported to Southeast Asia, Middle East, South America, Europe and other global markets.
Adhering to stable quality and sincere service, we provide complete pre-sale consultation, machine installation guidance and long-term technical support. We warmly welcome worldwide customers to establish long-term win-win cooperation with us.
| Model | MF800 |
| Max bag wide | 800mm |
| Max bag length | 700mm |
| Film thickness | 0.01-0.04mm |
| Machine speed |
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| Total power | 15kw |
| Machine weight | 2000kgs |
| Dimension | 9500*2200*1900mm |
Machine detailed specification:
| Items | Parameter |
| Machine main part : | |
| Machine main controller | PLC and touch screen (7 inches) control, 24V power supply for the Wuxi Kelai switch power supply. |
| Power of main motor | 1.5kw 220V Ac motor (external 15N.M,DC99V brake) non-brake motor, easy maintenance |
| Main motor controller | 1.5kw 220v Innovance Inverter controller |
| Active feed and passive feed | Active feed servo motor 3.7kw*1 Passive feed servo motor 3.7kw*1 |
| Temperature control zone | 5 zones, solid heating, including high and low temperature alarm function |
| Temperature control precision | ±2ºC |
| Total heating power | Copper knife heating rod power 1.2kw*3 |
| Unwinding part : | |
| Active unwinding | 550w aluminum case reduction motor *1 set |
| Active unwinding motor control | 0.75kw Innovance frequency conversion control *1 set , linear potentiometer speed adjustment (analog) |
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photocell tracking device from Japan Panasonic c *1 set(black film effective), 40*20mm thin cylinder press *2 sets. |
| Material feeding type | Cylinder feeding, 100*250mm cylinder 2 pcs, hand valve control. (pneumatic expansion shaft, pneumatic brake) |
| passive unwinding | 550w horizontal AC motor 1 piece |
| passive unwinding motor control | 0.75kw Innovance frequency conversion control *1 set , Omron proximity switch to adjust speed (switching quantity) |
| Traction part : | |
| traction motor power | 550w horizontal AC motor 1 set |
| Traction motor control | 0.75kw Innovance frequency conversion control, Japan Panasonic photoelectric switch adjustment speed *1 set (switching quantity) |
| Special device | EPC system 1 set |
| Rewinding part : | |
| rewinding controller | PLC (3U3232MT) from China and touch screen (7 inches) control, 24V power supply for Taiwan Ming Wei switching power supply (100w). |
| Winding motor power | 550w AC motor*2 SETS |
| Winding motor controller | 0.75kw INNOVANCE inverter controller*2, |
| FLIP CONTROL | Ss SERVO MOTOR 1.0*1, Flip around separate, independent count. |
| Equipment electrical configuration: | |
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| Bearing from Japan NSK | |
| Total power | About 19.5kw |
| actual consumption power | About 6kw/h |
| Weight | 2000kg |
| Dimension | 9500*2200*1900mm |
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