Small Flow Pneumatic Double Station Filter Cartridge Extension Machine (Standard)
The PP filter element length connector is used to connect short 2/3/4" filter elements to longer ones and is widely used for liquid pleated filter elements.
Introduction
Features
As a specialized small flow filter cartridge joining machine for filter cartridge extension and lengthening work, this pneumatic dual-station model offers distinct advantages for filter factories seeking high lengthening output at a low operating cost:
✔ Dual-Station Parallel Operation Doubles Throughput: Two workstations operate simultaneously for loading, alignment and thermal splicing, completing two finished elements per cycle. This double station filter cartridge joining machine effectively doubles output compared with single-station designs, achieving one pair every 60 seconds while occupying the same floor space.
✔ Pneumatic Drive Delivers Exceptional Cost-Performance: Pneumatic components are simpler, more durable and cheaper to maintain, making this pneumatic filter lengthening machine ideal for small to mid-sized filter producers with tight capital budgets.
✔ Precise Thermal Fusion Control for Reliable Splice Integrity: An advanced temperature control module maintains heating stability within ±5°C, producing strong, leak-free fusion seams between the core, membrane and end caps. Combined with hot plate contact heating, this hot plate filter joining machine meets the stringent integrity standards of pharmaceutical and microelectronics applications.
✔ Minimal Maintenance and Low Operating Costs: The pneumatic architecture eliminates the need for hydraulic fluid changes or servo motor servicing. Fewer wearable parts and a simpler spare parts inventory result in significantly lower long-term total cost of ownership compared with electric or hydraulic systems.
For a complete small flow filter production line, pair this hot plate filter joining machine with our filter cartridge cutting machine to prepare clean cartridge ends before joining, and our filter cartridge end cap welding machine to finish the welded end caps afterwards.
Technical Parameters
Model | ZS-ST6800 |
Drive | Pneumatic |
Welding Method | Hot Plate Contact Heating |
Welding Diameter | 68-80mm |
Welding Length | 10-60 inch |
Weld Materials | PP, PES, PMMA, etc. |
Power | 4.8KW |
Voltage | 220VAC/380VAC, 50-60HZ |
Air Pressure | 0.6-0.8Mpa |
Heating Precision | ±5℃ |
Capacity | 160-180 pcs/h |
Application
Our pneumatic double station filter cartridge joining machine is a reliable choice for manufacturers that require leak-free and high-efficiency small flow filter elements. This pneumatic filter lengthening machine has vast applications in various demanding precision filtration sectors:






For complementary processes, ZHISHUO also offers an ultrasonic welding machine for filter cartridge seam welding, a filter cartridge winding machine for string wound cartridges, and a filter bag production line for liquid filter bag manufacturing.
Product Showcase




Backed by a strong R&D team, we continuously integrate global technologies. Our equipment features self-tuning algorithms and patented non-stick designs, making them highly efficient and adaptable.
We are not just an assembler; we are the source manufacturer. Whether you need a standalone joining machine or a fully automated filter production line, we provide cost-effective, custom solutions.
Our dedicated international trade team is well-versed in customs clearance and global logistics. We guarantee timely delivery, efficient communication, and professional after-sales support.







Telephone
0086-19816122783Add
Building 3-2, Yize Zhiyan Valley, No99, Hengxi Road, Niutang Town, Wujin District, Changzhou City Jiangsu Province, China