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Heat Seal Tester LHST-A11

Heat Seal Tester LHST-A11

Heat Seal Tester LHST-A11 offers a wide range of heat-sealing temperature from RT to 300℃. It supports both single and double-segment testing, making it highly versatile. This tester is able to simultaneously test up to five different temperature segments. The sealing process occurs under a controlled temperature, pressure, and time to mimic real production conditions. Our tester is suitable to determine the optimal heat-sealing parameters for various plastic film substrates, flexible packaging films.

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Heat Sealing Temperature RT to 300℃
Temperature Control Accuracy ± 1℃ (0.1℃ customizable)
Heat Sealing Time 0.01 s to 99.99 h
Heat Sealing Pressure 0 to 8 kg (0 to 0.8 MPa)
Heat Sealing Surface Lower sealing tool: (35 × 10 mm)× 5 segments
Upper sealing tool: customizable with silicon pad
Heat Sealing Heating Form Double heating
Operating Mode Automatic and manual
Power Supply AC 220 V, 50 Hz
Dimension 700 × 400 × 540 mm
  • Dual operating mode

  • High heat sealing efficiency

  • Adjustable sealing time and pressure

  • Compact and durable design

  • High-precision components

  • Three-axis external cylinder

Our Heat Seal Tester LHST-A11 is used in food, pharmaceutical, and packaging industries to evaluate the heat sealing temperature, pressure, and time of plastic films, composite films, and coated materials. It ensures quality control, material research, and compliance with industry standards for flexible packaging.

Foot switch × 1

Power cord ×1

Note: User must ensure an air source for Heat Seal Tester LHST-A11.

Heat Seal Tester LHST-A11
Heat Seal Tester LHST-A11

Models of Plastic Testing Instruments

Labtron Plastic Testing Instruments has a microprocessor-controlled PID system that ensures precise temperature balance for consistent results. These include an inside chamber constructed from durable stainless steel, offering long-lasting reliability. Their test samples retain their physical properties even after aging, ensuring accurate assessments. They have adopted a double-pipe structure for enhanced durability and performance. Our plastic testing instruments effectively determine the anti-impact properties of materials, providing valuable data for material testing and quality control.

Heat Seal Tester LHST-A10

Heat Seal Tester LHST-A10

  • Heat Sealing Temperature : RT to 300℃
  • Temperature Control Accuracy : ± 1℃
  • Heat Sealing Time : 0.01 s to 99.99 h
  • Heat Sealing Pressure : 0 to 8 kg (0 to 0.8 MPa)
Lasting adhesive tester TLAT-A11

Lasting adhesive tester TLAT-A11

  • Standard roller : 2000 ± 50 g
  • Testing stations : 6
  • Dimension (L*W*H) tester : 650×210×550 mm (6 stations)
  • Weight for stations : 15 kg (6 stations)
Falling Weight Impact Tester TFWT-A10

Falling Weight Impact Tester TFWT-A10

  • Temperature Range : 10 to 35°C
  • Maximum Falling Height : 2000 mm
  • Resolution Of Displacement : 1 mm
  • Height Error : < ± 2 mm
Izod Impact Tester LZIT-A10
Izod Impact Tester LZIT-A10
  • Impact Energy : 1J, 2.75J, 5.5J (optional: 11J, 22J)
  • Impact Velocity : 3.46 m/sec
  • Drop Angle : 150°
  • Angle Display Accuracy : 0.1°
Pendulum Impact Tester LIPT-A10
Pendulum Impact Tester LIPT-A10
  • Maximum Impact Energy : 3 J
  • Minimum Graduation Value : 0.020 J (Option: 0.010 J)
  • Pendulum Lifting Angle : 90°
  • Pendulum Swing Radius : 265 mm
Melt Flow Indexer LMTF-A10

Melt Flow Indexer LMTF-A10

  • Temperature Control Range : 0℃ to 450℃
  • Temperature Resolution : 0.1℃
  • Temperature Fluctuation : ± 0.2℃
  • Temperature Uniformity : ± 1℃
Lasting adhesive tester TLAT-A10

Lasting adhesive tester TLAT-A10

  • Standard roller : 2000 ± 50 g
  • Testing stations : 3
  • Dimension (L*W*H) tester : 320×210×550 mm (3 stations)
  • Weight for stations : 10 kg (3 stations)
Pendulum Impact Tester LIPT-A11

Pendulum Impact Tester LIPT-A11

  • Impact Energy : Standard: 1 J, 2 J, 3 J Customizable: Up to 5 J
  • Resolution : 0.001 J
  • Punch Size : Փ 25.4 mm, Փ 12.7 mm
  • Sample Clamp Diameter : Փ 60 mm, Փ 89 mm

Heat Seal Tester LHST-A11 FAQ's
  • Yes, the Heat Seal Tester is highly versatile and can test a wide range of materials, including plastic film substrates, flexible packaging composite films, coated paper, and aluminum foil. Since different materials have unique melting points and sealing requirements, the device’s customizable temperature, pressure, and sealing time settings make it adaptable for various industrial applications.

  • Our Heat Seal Tester is a valuable tool for R&D laboratories working on developing new packaging materials. By simulating real-world sealing conditions, researchers can study how different materials respond to heat sealing and optimize their properties for durability, sustainability, or cost-effectiveness. It is particularly useful for testing eco-friendly and biodegradable packaging materials, ensuring they meet industry standards while maintaining seal integrity.

  • Safety is a priority in heat-sealing devices, especially when operating at high temperatures. Labtron’s Heat Seal Tester is designed with precise temperature control, preventing overheating that could damage materials or pose safety risks. The external cylinder design ensures controlled pressure application, reducing the risk of sudden pressure fluctuations. Furthermore, the foot switch operation allows users to safely control the sealing process without direct hand contact with the heated parts.

  • Labtron’s Heat Seal Tester utilizes a double-heating system, where both the upper and lower heating elements apply controlled heat to the test material. This system ensures uniform heat distribution, leading to consistent sealing results. The lower heating tool measures 35×10mm, while the upper tool features up to five customizable segments for multi-temperature testing. The double-heating mechanism enhances efficiency and ensures that both sides of the material achieve the necessary temperature for a strong bond.

  • The heat sealing properties of packaging materials directly affect the integrity and shelf life of packaged products. Temperature determines how well the material melts and fuses together, pressure ensures proper adhesion, and time controls the duration of heat exposure to achieve a strong bond. If any of these factors are not optimized, the packaging may develop weak seals, leading to contamination, leakage, or product degradation. Our Heat Seal Tester allows manufacturers and researchers to fine-tune these parameters for the best sealing performance.

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Plastic Testing Instruments:
Heat Seal Tester LHST-A10, Lasting adhesive tester TLAT-A11, Falling Weight Impact Tester TFWT-A10, Izod Impact Tester LZIT-A10, Pendulum Impact Tester LIPT-A10, Melt Flow Indexer LMTF-A10, Lasting adhesive tester TLAT-A10, Pendulum Impact Tester LIPT-A11, and more.

Catalogs : Laboratory Equipment Catalog, Analytical Equipment Catalog, Medical Equipment Catalog, Test Equipment Catalog, Petroleum Testing Catalog, Pharmaceutical Machinery Catalog, Security Systems Catalog, Lab Products Catalog.

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Email: info@labtron.com

WhatsApp: +44 73 4441 2688

Phone: +44 2080 043608

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Labtron Equipment Ltd., Quatro House, Lyon Way, Camberley, Surrey GU16 7ER United Kingdom

Email: info@labtron.com Whatsapp: +44 73 4441 2688 Phone: +44 2080 043608

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