Fully Automatic Square Bottom Kraft Bag Production Line

Fully Automatic Square Bottom Kraft Bag Production Line

Combined PBFD square bottom bag machine + PBH-R-P paper rope handle maker, inline automatic handle pasting, produce eco shopping kraft bags, speed up to 200 pcs/min.(square bottom paper bag line with inline handle, kraft shopping bag making machine, automatic paper rope handle pasting machine, SOS bag production line)

Integrated Square Bottom Kraft Bag & Inline Paper Handle Production Line

This complete automatic production line consists of PBFD series square bottom paper bag host and matched PBH-R-P automatic paper rope handle making & pasting machine, realizing one-pass continuous production of finished kraft shopping bags with integrated rope handles. The front PBFD unit completes unwinding, tube forming, side gluing, bottom creasing, square bottom folding and blank bag output. Then the inline handle machine automatically produces twisted paper rope handles and precisely pastes them onto bag bodies without secondary manual transfer. The whole line drastically cuts labor, workshop space and intermediate handling waste, perfect for mass production of retail, catering and gift eco kraft carry bags.

Properties And Uses

Square Bottom Bag Machine Core Advantages

 

• Full automatic forming: unwinding, tube forming, side gluing, bottom creasing & square bottom sealing in one pass.
• Wide size range: bag width 80–430mm, custom mold adjustment available.
• Stable servo tension control, no paper wrinkling or offset for plain & printed kraft rolls.
• Compact layout, easy parameter tuning for different food & retail bag sizes.

 

Main Technical Parameters

Product drawing

 

 

Name	square bottom paper bag making machine
Model	PBFD-220B	PBFD-330	PBFD-450
Cutting length	190-430mm	270-530mm	270-530mm
Paper bag width	80-220mm	120-330mm	220-430mm
Bottom width	50-105mm	60-180mm	90-180mm
Paper bag thickness	50-150g/㎡	60-150g/㎡	80-150g/㎡
Mechanical speed	30-260pcs/min	30-220pcs/min	30-220pcs/min
Paper bag speed	30-200pcs/min	30-180pcs/min	30-150pcs/min
Paper roll width	290-710mm	380-1050mm	660-1290mm
Paper diameter	1300mm
Inner diameter of paper	76mm
Total power	380V 3phase 4line 11.5kw	380V 3phase 4line 15kw
Total weight	6000kg	8500kg	9000kg
Overall size	8200*3500*2200mm	10000*3700*2200mm	10000*3800*2200mm

Note:

Actual running speed depends on paper gram, glue type and bag dimensions.

Introduction

 

Handle Machine Core Advantages

 

• Inline linkage design, directly receive blank square bags and attach handles without manual transfer.
• Independent rope twisting + handle lamination unit, auto cut finished handle loops continuously.
• Mechanical arm transfer system reduces labor and lower production cost greatly.
• Uniform cold glue coating, firm handle adhesion without detachment during carrying.
• Simple touch adjustment, consistent handle position for uniform finished bags.

 

Main Technical Parameters

Product drawing

 

 

Name	automatic paper handle making machine
Type	PBH-R-P
Handle Spacing(W)	76 mm	95 mm
Paper Board Length(L)	152 mm	190 mm
Paper Board Width(h)	30-40 mm
Rope Diameter(D)	3-5 mm
Rope Height(H)	100 mm
Bag Width	250-400 mm
Bag Length	250-450 mm
Top opening size	Over 130mm
Max. Speed	35 pcs/min
Paper Roll Width	60-80 mm
Max.Roll Diameter	1000 mm
Reel inner diameter	76 mm
Paper specification	80-120 gsm
coating way	coated with cold glue
Air pressure	≥0.12cmm, 0.4~1Mpa
Electric	380V, 50Hz, 3 phase
Power	10 KW
Weight	3500 Kg
Overall dimension(L×W×H)	6000×1600×1500 mm

Full Line Automatic Workflow

1. Raw kraft paper unwinding & constant tension feeding
2. Tube forming, side gluing, fixed-length cutting
3. Bottom creasing, square bottom folding & bottom gluing sealing
4. Blank square bags auto conveyed to inline handle station
5. Handle machine twists paper rope, laminates backing paper & cuts individual handles
6. Mechanical arm transfers handles and pastes onto bag top edge
7. Finished kraft shopping bags with paper rope handles auto stacked & output

Whole Production Line Integrated Strengths

1. One continuous line from raw paper roll to finished handle shopping bags, eliminate offline handle pasting station.
2. Save workshop area and cut manual labor by over 60% compared to separate two machines.
3. Uniform bag & handle positioning, stable finished bag appearance with low reject rate.
4. Two sections adopt independent PLC touch control, easy separate speed & size adjustment.
5. Wide material compatibility, fit regular kraft, printed retail packaging paper.
6. Flexible matching: PBFD-220/330/450 host can freely pair PBH-R-P handle machine per bag size demands.

Application Scope

• Supermarket retail carry kraft bags
• Bakery, fast food takeaway gift bags
• Cosmetic & clothing brand shopping packaging
• Fruit, dried food eco square bottom hand bags

paper bag Sample

Packaging and Delivery

Bag host and handle machine are disassembled, packed with export fumigated wooden cases with shockproof foam & moisture film inside, safe for sea & air long-distance transport. Delivery follows signed contract schedule.

FAQ

1.Q: Can I buy the square bag machine or handle machine separately?

A: Yes, two units are independent; you can purchase single host or full linkage line as your need.

2.Q: What size bags fit this handle pasting machine?

A: Adaptable bag width 250–400mm, bag length 250–450mm, top opening over 130mm.

3.Q: What rope sizes can the handle unit produce?

A: Twisted paper rope diameter 3–5mm with adjustable vertical height 100mm.

4.Q: Is the linkage between two machines adjustable?

A: Conveying speed and spacing can be tuned on touch screen to match bag output speed.

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