Vertical Counter‑Pressure Retort LS‑35L/50L/75L/100L | Dual‑Mode Sterilization for Food Packaging Aseptic Testing LS‑series Vertical Counter‑Pressure Retort for Food Packaging Sterilization & Laboratory Aseptic Validation Product Introduction Reliable dual‑mode counter‑pressure sterilizer tailored for food packaging quality control & lab aseptic evaluation. The vertical counter‑pressure retort is a medium‑small‑size mechanically program‑controlled counter‑pressure sterilization equipment. The sterilizer adopts electric heating mode. Water is directly injected into the sterilizing chamber and heated to generate high‑pressure steam required for sterilization to disinfect articles. After sterilization is completed, external compressed air and water pressure are applied for rapid cooling within 3 minutes, cooling internal articles down to 30‑40℃. Equipped with program control, it supports two operation modes: boiling disinfection and pressure sterilization with rapid cooling. Boiling temperature can be set ≤100℃. The rapid‑cooling pressure sterilization temperature is pre‑selectable within 101℃‑135℃. It is integrated with heater overload protection and buzzer alarm upon sterilization completion. Featuring simple operation and high safety reliability. This unit is suitable for disinfection and sterilization of food packaging, utensils and instruments. It is an ideal device especially for aseptic tests in food research institutions. Working Principle Dual‑sterilization logic enables boiling disinfection & high‑pressure counter‑pressure sterilization, simulating real‑world thermal processing conditions for flexible packaging samples. This equipment is designed with two disinfection & sterilization principles to deliver dual‑function performance for customers. The heater directly heats water to produce pressurized steam. The pressurized steam acts on microorganisms on samples and destroys their structures to realize sterilization. When rapid‑cooling sterilization program starts, 6 liters of tap water is first injected into the chamber. After around 25‑minute heating process, it enters sterilization holding stage with sterilization duration of 35‑40 minutes. When sterilization finishes, 0.24 MPa compressed air and tap‑water pressure are manually fed into the chamber, then half‑open the drain valve to discharge water and implement counter‑pressure cooling for flexible packages and other specimens. Rapid cooling lasts for 3 minutes. Manually cut‑off compressed air and tap‑water supply, and internal articles can be cooled down to 30‑40℃. Core Advantages Dual‑mode operation: boiling disinfection & counter‑pressure pressure sterilization Ultra‑fast 3‑minute counter‑pressure cooling to avoid flexible pouch deformation Heater overload protection & buzzer alarm when sterilization cycle completes Multiple chamber volume options:35L‑50L‑75L‑100L for different test throughput Mechanical program control, easy operation for laboratory staff Technical Parameters Item Specifications Max Working Pressure 0.22 MPa (30 Psi) Max Working Temperature 135℃ Sterilization Temperature Selection 101‑135℃ Boiling Temperature Selection ≤100℃ Timer Range 1‑60 min Effective Chamber Volume 35L, 50L, 75L, 100L Power / Power Supply 2.5 KW / AC220V, 50Hz; 3 KW / AC220V, 50Hz; 4.5 KW / AC220V, 50Hz Overall Dimension 570×550×970 mm(35L);590×590×1110 mm(50L);650×630×1150 mm(75L);680×650×1220 mm(100L) Gross / Net Weight 56/42 kg(35L); 68/50 kg(50L); 90/70 kg(75L); 105/85 kg(100L) Application Scenarios Widely adopted in food R&D laboratories, packaging manufacturers and quality inspection institutes for sterilization and thermal‑resistance assessment of flexible food packaging materials. Disinfection & sterilization for food flexible packaging, containers and lab utensils Aseptic test and thermal resistance evaluation for food packaging samples Sterilization for laboratory instruments and small‑batch food test specimens Get Custom Solution & Quotation GBPI Packaging Test EquipmentOfficial Website: www.gbpitester.com

  GF-2200Z Two-Station Rotary Tube Sealing Machine Product Introduction The fully automatic two-station rotary tube sealing machine is specially designed for automatic tube sleeving and heat sealing of straws and bags. It is applicable to straws of various calibers, lengths and models. It is the preferred automatic equipment for spout stand-up bags such as beverage packaging, suckable jelly, condiments and daily chemical products (laundry detergent, skin care products). It can be customized to connect with filling production lines for integrated operation. Technical Parameters Overall Dimension 2900mm x 2400mm x 2000mm (L × W × H) Sealing Type Stand-up bag, three-side sealed bag, gusset bag, special-shaped bag (customized) Material Type Bag: Inner PE, Inner PP materialTube: PE, PP material Product Specification Bag Length: 100~180mm, Width: 70~120mm, Sealing Length: 60~120mmStraw Caliber: 8.5mm (other sizes customizable) Working Speed 80-90 pcs/min (varies with different materials and bag sizes) Positioning Accuracy ≤±0.5 mm Sealing Cutter Group 6 groups in total: 1 preheating group, 4 heat sealing groups, 1 cooling group Temperature Control Module 2 sets (12-channel module), accuracy ±0.1℃ Heating Temperature Room Temperature ~ 300℃ Power Supply 380V/50Hz, 13KW Air Source 0.6~0.8MPa, 11L/min Equipment Weight 2000Kg Product Features The tube sealing machine adopts two-station design, with fully automatic operation of preheating, bag separating, tube loading and heat sealing processes; Sealed products are automatically sent to the transition machine, convenient for connecting and docking with subsequent production equipment; Adopts PLC control and intelligent parameter setting; parameters can be quickly configured according to different bag types and straws, easy operation; Equipped with imported temperature control modules and pneumatic components such as SMC, Festo and Airtac with stable and reliable quality; Adopts step-by-step heating and final cooling sealing process design to achieve perfect sealing performance; Automatic fault detection, alarm, shutdown, diagnosis and real-time fault location display; Light overall weight, small floor occupation and stable long-term operation performance; Main components are made of aluminum alloy and stainless steel, complying with food and pharmaceutical GMP environmental hygiene standards. System Composition The machine adopts dual-station structure, consisting of bag feeding system, tube feeding system, heat sealing system, bag dropping system, rejecting mechanism, transition machine, control system and machine base; The bag feeding system includes bag placing & positioning mechanism, bag picking mechanism and bag sleeving mechanism; the bag picking mechanism takes out finished bags one by one, and the bag sleeving mechanism loads bags into the bag holder and sleeves onto the straw; The tube feeding system is composed of vibration plate and transition trough mechanism; automatic detection and start-stop control during feeding process; The heat sealing system includes preheating, heat sealing and cooling, including 1 set of preheating cutter, 4 sets of heat sealing cutters and 1 set of cooling cutter; customized sealing and cooling cutters are available to adapt to straws of different specifications; Each group of sealing cutters supports independent temperature control, separate temperature setting and independent operation debugging; The bag collecting system consists of discharging mechanism and trough changing mechanism; sealed bags are discharged to the middle position, then pushed into the material trough; empty trough replacement is automatic when full; The operation interface real-time displays working status, including production speed, finished product quantity, shift output, date and temperature parameters. Application Fields Jelly Spout Bag Soymilk Spout Bag Care Products Bag Puree Bag Special-shaped Spout Bag Foldable Outdoor Water Bag

Product introduction This product is based on the test principle of cup method water vapor transmission, and is designed and manufactured according to ASTM E96, GB/T 1037 standards, and provides a wide range and high efficiency water vapor transmission rate detection for low, medium and high water vapor barrier materials. test. It is suitable for the water vapor transmission performance test of films, sheets, paper, fabrics, non-woven fabrics and related materials in the fields of food, medicine, medical equipment, daily chemicals, etc.

  Professional Battery Diaphragm Test Equipment for lithium battery diaphragm air permeability, thickness & tensile strength testing. Stable performance for new energy battery manufacturing.

It is used to dry, bake, melt and sterilize test sample, widely used in industrial and mining enterprises, laboratory, research institute, inspection agency, college and so on.

Product introduction Fully automatic dual-channel linear type corner-spout sealing machine is professionally used for automatic casing and heat sealing of spouts and pouches. It is suitable for spouts of various diameters, lengths and models. As preferred automation equipment for corner spout packaging pouches, it is widely use in packaging of Laundry detergent, beverage, oil, edible oil, outdoor folding water pouches, etc. It can be customized to connect to the filling production line.

Product Brief The N600P Paper & Paperboard Air Permeability Tester is custom-developed to align with standards like GB/T 458-2008 and ISO 5636. It adopts the differential pressure method as its core testing principle, and innovatively integrates three industry-common testing approaches (Gurley, Schopper, and Bendtsen) into a single device.   This tester is applicable to air permeability detection of various paper and paperboard materials, and can measure key indicators including: material air permeability, air resistance, gas transmission rate, and total gas transmission volume. Testing Principle Gurley Method   Under a constant differential pressure of 1.23 kPa, measure the time required for 100 mL of gas to pass through the sample. Schopper Method   Select a suitable test duration under a constant differential pressure (1.00 kPa±0.01 kPa or 2.50±0.01 kPa), and calculate the gas flow rate through the sample by measuring the gas volume. Bendtsen Method   After clamping the sample for 5 seconds under a constant differential pressure of 1.47 kPa, test the gas flow rate through the surface of the sample. Executed Standards GB/T 458-2008, SJ/T 10171-2016, ISO 5636-5:2003, ISO 5636-2:1984, ISO 5636-3:2013, TAPPI T460 Technical Parameters   Item Technical Parameters Test Range 0.1~10 μm/(Pa·s) Resolution 0.001 μm/(Pa·s) Differential Pressure Range 0~5 kPa Pressure Resolution 0.001 kPa Test Area 6.42 cm² or 10.0 cm² Sample Size ＞50 mm×50 mm Instrument Dimensions (L×W×H) 450 mm×400 mm×300 mm Power 100 W Power Supply 110~250 VAC, 50~60 Hz

The W401 2.0 Water Vapor Transmission Rate Tester is designed and manufactured in accordance with ASTM F1249 and ISO standards. Adopting advanced infrared moisture sensor technology, it provides wide-range and high-efficiency testing of water vapor transmission rate (WVTR) for high, medium and low barrier materials.

   

The Compression Tester GBN200A is professionally used to test the pressure resistance and burst resistance of various packaging bags. It can set the pressure and measure the deformation; set the deformation and measure the pressure resistance. It is an ideal testing equipment for quality inspection, drug inspection, scientific research, packaging, film, food, medicine, daily chemical and other industries.

Application It is to test the filtering efficiency of particulate protective masks and medical masks and to determine the resistance of ordinary fabrics and medical protective masks to the constant flow of airflow.

Automatic High Precision Digital Thickness Meter is a high precise thickness meter integrating optics, mechanology , electronics and algorithm. Easy to operate. Test results are displayed digitally. And can connect to computer for automatic control.