Plastic Bag Making Machine

CHOVYPLAS high-speed bag making machines are engineered to process virgin and recycled polyethylene films, including HDPE, LDPE, and LLDPE. These materials are widely used for T-shirt bags, flat bags, courier pouches, and garbage bags on roll. Machines can also handle CaCO3-filled and recycled granule blends when sealing temperature, tension, and cooling are properly calibrated. For buyers switching between virgin and recycled content, CHOVYPLAS provides material trials and parameter recommendations to maintain stable output and seal strength. Contact our engineers before production to confirm compatibility with your exact film formulation.

Biodegradable films such as PLA, PBAT, and starch-based blends require lower sealing temperatures, reduced clamping pressure, and slower cycle speeds compared with conventional PE. When converting a rolling garbage bag making machine for compostable materials, adjust heat-seal bars, cooling time, and unwind tension to prevent film shrinkage or weak seals. CHOVYPLAS machines support eco-friendly production with optional servo temperature zones and material-specific recipes. We recommend on-site or remote commissioning when switching from standard HDPE/LDPE to biodegradable substrates for the first time.

Sealing and cutting failures on roll bag lines are usually caused by incorrect temperature, worn sealing bars, misaligned knives, or inconsistent film tension. Start by verifying seal bar temperature against film type, then inspect Teflon-coated bars and cutting blades for wear. Check perforation depth, encoder signals, and whether the film slips during winding. For intermittent weak seals, review cooling airflow and production speed. CHOVYPLAS provides 24/7 remote troubleshooting and spare parts support to minimize downtime on rolling garbage bag and bag-on-roll production lines.

An automatic rewinding unit with auto-changeover allows continuous production of perforated roll bags without manual roll changes. When one core is full, the system transfers the web to a new core, applies tape if required, and resumes winding automatically. This reduces labor, minimizes film waste, and increases daily output for high-volume trash bag and bag-on-roll manufacturers. CHOVYPLAS rolling bag lines integrate core insertion, perforation, and auto-changeover options for customers targeting 24/7 production. Explore our rolling garbage bag machines for configuration details.

CHOVYPLAS exports bag making machines with electrical systems customized for the destination market. Standard configurations include 380V 50Hz 3-phase for Asia and the Middle East, 415V 50Hz for parts of Asia-Pacific, and 220V/230V 60Hz or 480V options for the Americas. Motors, heaters, and control panels are adapted before shipment to match local voltage and frequency, ensuring compliance with regional safety requirements. Our team confirms power supply details during order review and provides wiring diagrams for installation. Request a voltage specification sheet for your country.

CHOVYPLAS plastic bag making machines cover the most searched retail and industrial bag formats. T-shirt (vest) bags are produced on dedicated vest bag lines with die-cut handles. Bottom seal bags suit flat food packaging and general PE bags. Side seal bags handle courier pouches, garment bags, and zipper-integrated formats. One production plant may run multiple machine types for different bag structures. Explore our T-shirt, bottom seal, and side seal machine lines to match your target bag type.

An FFS (Form-Fill-Seal) heavy-duty bag making machine forms tubular film into industrial sacks, then seals and cuts them for bulk packaging. These machines produce valve bags and open-mouth sacks for cement, mortar, chemicals, minerals, fertilizers, and food-grade powders. FFS lines feature moisture-proof, leak-proof, and anti-static options for demanding export and storage conditions. CHOVYPLAS FFS heavy duty bag making machines serve building materials, chemical, and agricultural packaging manufacturers requiring high-strength, high-volume sack production.

Regular FFS machine maintenance includes daily cleaning of sealing jaws and film guides, weekly lubrication of bearings and chains, and monthly inspection of heating elements, sensors, and pneumatic cylinders. Check sealing bar alignment, knife sharpness, and tension roller wear every production shift. Replace Teflon tape and worn gaskets before seal quality drops. CHOVYPLAS provides a detailed maintenance checklist and spare parts list with every FFS installation, plus training during commissioning. Scheduled preventive maintenance reduces unplanned downtime and extends machine service life.

Hot cutting (flying knife) uses heated blades to seal and cut in one motion, ideal for high-speed T-shirt bags and thin PE films where clean edges and fast cycles matter. Cold cutting separates bags with mechanical knives without heat, better for thicker films, laminated materials, or applications requiring precise cut dimensions without melt edges. Flying-knife systems suit maximum output; cold-cutting suits specialty films and wider bag formats. CHOVYPLAS engineers recommend the optimal cutting method based on your film thickness, bag type, and speed target during pre-sales consultation.

CHOVYPLAS offers extensive customization for specialized bag production. Options include servo motor drive for precise length control and faster changeovers, photocell registration for printed film alignment, double-lane output, automatic tension control, wicketer stacking, core insertion, and adhesive strip application for courier bags. Bag width, sealing type, and production speed can be tailored to your product range. OEM branding, color schemes, and electrical configurations are also available. Contact CHOVYPLAS with your bag specifications for a customized machine proposal.