Our Products
Recommended Machines
LONGSN automatic packing machines replace traditional manual packing, improve production efficiency
and reduce labor costs, completing the automatic post-processing line for plastic bottles.
Who We AreAbout Us
Zhangjiagang Longsn Machine Co., Ltd.
Zhangjiagang Longsn Machine Co., Ltd. is a professional manufacturer which integrates development, research, design, manufacturing, technical service and marketing to manufacture complete sets of bottle packaging machines: bottle bagger machine, bottle neck cutting machine, leak tester, cap inserting/assembly machine, bottle handle applicator and so on. The company is located in Zhangjiagang City on the south bank of the golden waterway in the middle and lower reaches of the Yangtze River. It is adjacent to Shanghai, Nanjing, Suzhou, Wuxi and other large and medium-sized cities. It is very convenient for sea and land transportation along the Yangtze River.
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2142m²
Factory Area
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12+
Professional Teams
Machine Classification
Products
Machines for the plastic bottle line behind the blow moulder, from neck cutting, leak testing and bagging to cap lining, cap assembly and conveying. All are developed and built in our own factory in Zhangjiagang.
- Bottle Neck Cutting Machine
- Empty Bottle Leak Tester
- Empty Bottle Bagging Machine
- Cap Liner Inserting Machine
- Cap Assembly Machine
- Cap Assembly Wadding Machine
- Bottle Handle Applicator
- Cap Slitting Folding Machine
- Vision Inspection System
- Transport Conveyor & Robot System
Bottle Neck Cutting & Leak Testing Machine LSN-CL2
This bottle neck mouth cutting leak testing machine is used to cut off the edge on plastic bottle neck then also test…
Plastic Bottle Cutting Machine (PET, PE, PP) LSN-C2
This bottle neck cutting machine can be used for plastic cans, wine cups, pharmaceutical and daily used products.
Jerry Can & Container Neck Cutting Machine LSN-C4
LONGSN Factory automatic bottle cutting style is updating solution for this plastic bottle/containers industry.
3–5 Gallon Empty Bottle Leak Tester LSN-LT
This leakage tester machinery uses famous brand PLC and high-precision pressure sensors, no matter your container is as…
PE, PP & PET Bottle Leakage Tester LSN-LT2
To check the empty bottle or container if have leakage or broken ,then reject out the defective bottles
Empty Container Leak Testing Machine LSN-LT3
The empty bottle leak testing machine is designed for leak detection in plastic bottles or containers, to check the…
Empty Bottle Bag Packing Machine LSN-BA200
Longsn LSN-BA200 type Auto empty bottle Bagging machine use pre-made gusseted plastic bags roll, which are automatic…
PET, PP & HDPE Bottle Bagging Machine LSN-BA100
Empty plastic bottle bagging packaging machine mainly connect with Blow molding equipment for packing bottles,cans,jars…
Plastic Bottle Bagging Machine LSN-BS180
The automatic packaging machine is used to pack empty bottle into bags, the bottle size can be from 10ml to 30L, and…
5 Gallon Water Cap Lining & Wadding Machine LSN-L2
This 5 gallon water cap lining machine is an ideal cap liner inserting machine which is widely applied in cap…
Foil Wad Inserting Machine for Caps & Lids LSN-L2S
The cap inserting/wadding machine is the automatic machine developed to insert liner/wad/foil/foam into bottle caps.
High-Speed Cap Liner Inserting Machine LSN-L6
This type auto bottle cap liner/wad inserting putting machine is used to insert the liner/aluminum foil/PE foam into…
Water Bottle Cap Assembly Machine LSN-A2S
For assembly top cover, inner cap and bottom cap by press and rotary in one machine, it can save much labor cost, and…
Plastic Cap Assembly Machine LSN-A2, 120–200/min
High Quality Aluminum plastic push pull sport bottle Cap Assembly Machine can be customized according to customers…
2- and 3-Part Closure Assembly Machine LSN-AD2
The two-cap combining machine can automatically combine two separated caps together, or combine cap parts that need…
Cap Assembly & Liner Inserting Machine LSN-AL2
LONSGN automatic bottle cap assembly Lining machine is designed for the caps which need both assembly and liner…
Automatic Bottle Handle Applicator LSN-A80
Automatic feed the pull-ring - ring-pull slipping slot – sleeve the ring to the bottle neck—first pressing of pull-ring…
Semi-Automatic Bottle Handle Applicator LSN-S200
This bottle handle ring applicator is designed 2-18L big bottles , handle inserting machine can automatically put…
Anti-Theft Ring Cap Slitting Machine LSN-S5
The customized plastic cap slitting machine which is used in cutting caps to form the cap anti-theft ring.
2-in-1 Cap Slitting and Folding Machine LSN-CF1
This type Plastic cap anti-theft ring cutting folding machine is one of our hot sale products, the speed can be…
Our SolutionsPackaging Line Solution
One line behind your blow moulder, for the empty bottles and for the caps,
planned together with the production line layout.
Neck Cutting and
Leak Testing Line
Neck cutting and leak testing machines behind your blow moulder, linked by conveyor, with leaking bottles rejected before packing
Empty Bottle
Bagging Line
Automatic baggers pack the empty bottles into bags at the end of the line, with the layout planned for the whole route
Cap Lining and
Assembly Line
Liner inserting, 2- and 3-part cap assembly, slitting and folding machines, set up on your own cap samples
Why Choose UsWhy We Are The Right Choice For You?
A manufacturer since 2003, CE certified and SGS audited, with 68+ engineers building and commissioning
every machine in our own factory in Zhangjiagang.
20+ Years Experience
Founded in 2003, with more than 20 years of professional manufacturing and design experience to give you the most suitable solution.
High Quality Control
A professional high-precision CNC center, with electrical components from Europe, America and Japan on every machine.
Reasonable Price
We manufacture the machines ourselves, so we can offer reasonable prices for high quality machines.
After-Sales Service
We send professional engineers to help you install the machines and train your workers until they can operate them.
2-Year Warranty & Parts
Every machine comes with a 2-year warranty, and spare parts are free within the warranty period and can be sent out directly.
Our CapabilitiesOur Capabilities
Founded in 2003, LONGSN covers an area of 2,142 square meters and has more than 12 professional design and development teams and more than 68 professional production, installation and commissioning engineers. We adhere to the policy of “market-oriented, quality-oriented, service-guaranteed and reputation-based” and follow the ISO 9001:2000 and CE international quality management systems to ensure the quality and performance of every machine.
Engineers
Countries
- E-Mail : info@longsn-machine.com
- Phone : +86-15995983945
- Add : No.268 Xitang Road, Economic-Technological Development Zone, Zhangjiagang City, Jiangsu Province, China
Get A Free Quote
Tell us your bottle or cap, material and target output, and our engineers will recommend the right machine or line configuration.
Certificates & Audits
CE Certified, SGS Audited
Two CE certificates under the Machinery Directive and an SGS on-site factory audit report are on file at LONGSN. See the documents on the About page.
Latest NewsIndustry Insights &
Company News
Technical guides and company news on bottle neck cutting, leak testing, bagging, cap lining and cap assembly — from the LONGSN engineering team.
Maintenance & Troubleshooting for Your Bottle Neck Cutting Machine
Efficient production lines depend not just on high-quality equipment but also on the way machines are maintained and operated.
Learn More
Which Bottle Neck Cutting Machine Is Best for High-Speed Production?
When high-speed production lines are a priority, selecting the right trimming equipment is more than a convenience — it's a strategic decision.
Learn More
Automatic vs Manual Empty Bottle Leak Testers: Which Is Right for Your Facility?
In modern beverage, pharmaceutical and packaging industries, ensuring the integrity of containers is essential for quality control.
Learn More