LB-T17 Ceramic Tile Wet Expansion Coefficient Tester

This instrument meets the requirements for test equipment specified in GB/T 3810.10 and ISO 10545.10, “Methods of Testing Ceramic Tiles—Part 10: Determination of Wet Expansion,” and is suitable for determining the wet expansion of ceramic tiles.

LB-T18 Multi-Element Rapid Analyzer

The LB‑T18 multi‑element rapid analyzer employs a unique approach to linear range extension and sensitivity enhancement, addressing the common issues of nonlinearity at high concentrations and poor sensitivity at low concentrations in conventional spectrophotometric analysis. It is equipped with a 7‑channel automated precision dispensing system, a 6‑element simultaneous measurement system, and an automatic data processing system, along with a proprietary anti‑interference technology developed by the company. This enables broad‑range, accurate, and rapid quantitative determination of more than twenty elements, offering significant advantages in silicate‑based analytical applications. It is particularly well suited for analyzing silicon‑ and aluminosilicate‑containing materials, including ceramic raw materials (including glazes) and finished products, refractory raw materials and products, glass raw materials (including glass‑ceramics) and finished products, primary cement raw materials and finished products, as well as other inorganic nonmetallic materials.

LB-T19 Ceramic Tile Unglazed Surface Wear Resistance Tester

This apparatus is suitable for wear‑resistance testing of brittle materials such as unglazed tiles, mosaics, and cement paving bricks. The tester comprises a power‑transmission unit, a specimen‑clamping assembly, an abrasive‑supply system, and an electrical control section. The grinding wheel rotates at a constant speed, and a loading weight applies a specified pressure to bring the specimen into contact with the steel grinding wheel. Abrasive material is delivered to the grinding zone at a prescribed flow rate, and under its action, abrasion pits are formed on the specimen surface. By measuring the chord length of these pits—accurate to 0.5 mm—and calculating the pit volume, the degree of wear of the specimen is quantified. Each specimen is evaluated based on the average wear volume measured at two distinct locations.

LB-T20 Pavement Brick Inorganic Material Comprehensive Abrasion Tester

This apparatus is suitable for wear‑resistance testing of brittle materials such as unglazed tiles, mosaics, and cement paving bricks. The tester comprises a power‑transmission unit, a specimen‑clamping assembly, an abrasive‑supply system, and an electrical control section. The grinding wheel rotates at a constant speed, and a loading weight applies a specified pressure to bring the specimen into contact with the steel friction wheel. Abrasive material is fed into the grinding zone at a controlled flow rate, and under its action, abrasion pits are formed on the specimen surface. The degree of wear is quantified by measuring the chord length of these pits (to an accuracy of 0.5 mm) and calculating the corresponding pit volume. Each specimen is evaluated based on the average wear volume measured at two distinct locations.

LB-T20 Inorganic Material Comprehensive Abrasion Tester for Pavement Tiles

This apparatus is suitable for wear‑resistance testing of brittle materials such as unglazed tiles, mosaics, and cement paving bricks. The tester comprises a power‑transmission unit, a specimen‑holding fixture, an abrasive‑supply system, and an electrical control section. The grinding wheel rotates at a constant speed, and a loading weight applies a specified pressure to bring the specimen into contact with the steel grinding wheel. Abrasive material is fed into the grinding zone at a prescribed flow rate, and under its action, wear pits are formed on the specimen surface. The degree of wear is quantified by measuring the chord length of these wear pits (to an accuracy of 0.5 mm) and calculating the corresponding pit volume. Each specimen is evaluated based on the average wear volume measured at two distinct locations.

LB-T21 Ceramic Tile Freeze-Thaw Tester (Ceramic Freeze-Thaw Test Chamber)

This instrument is a specialized device designed for measuring the freeze–thaw resistance of ceramic tiles. It consists of three main components: a freezing test chamber, a water supply and drainage system, and a temperature‑control and automatic‑control system. According to the test requirements, set the electronic counter to the desired number of test cycles (100 cycles). Place the test specimens in the test chamber and securely close the cover. Activate the refrigeration system to cool the chamber to −5°C and maintain this temperature for 15 minutes. Then, start the water pump to spray water onto the specimens, raising the temperature to +5°C and holding it for another 15 minutes; each cycle increments the counter by one. Repeat the prescribed test sequence until the total number of cycles—100—is completed. The system automatically performs the cyclic tests as programmed and issues an alarm upon completion.

LB-T22 Ceramic Tile Impact Tester (Rebound Coefficient Measuring Instrument)

The LB‑T22 ceramic tile impact tester (rebound coefficient tester) drops a steel ball from a fixed height onto the test specimen and measures the rebound height, thereby determining the rebound coefficient. This coefficient is used to evaluate the impact resistance of various types of tiles, in accordance with the standards GB/T 3010.5‑2016 and ISO 10545‑5:1996 “Ceramic tiles — Determination of impact resistance by measuring the rebound coefficient.”

LB-T23 Digital Display Ceramic Clay Plasticity Tester (Microcomputer-Based Plasticity Tester)

An instrument suitable for measuring the plasticity of ceramic slip, widely used in the ceramics, electrical porcelain, building materials, and abrasive industries.

LB-T25 Ceramic Tile Slope Method Critical Slip Resistance Coefficient Measurement Device

This device meets the testing requirements for the ceramic slip resistance coefficient as specified in Appendix C of the 2019 Ceramic Tile Slip Resistance Rating Standard, which outlines the critical slope‑method test procedure. Test personnel walk back and forth on a sloped surface constructed from test specimens, gradually increasing the slope angle until the point at which safe walking is no longer possible; the corresponding critical angle is used to characterize the slip resistance of the specimen’s surface.

LB-T26 Porous Ceramic Apparent Porosity and Bulk Density Tester

This instrument complies with GB/T 1966 “Test Method for Apparent Porosity and Bulk Density of Porous Ceramics,” YB/T 5200 “Test Method for Apparent Porosity and Bulk Density of Dense Refractory Castables,” and GB/T 6156 and GB/T 24529‑2009 “Methods for Determining Apparent Porosity of Carbon Materials.” Using the vacuum method, it measures the apparent porosity and bulk density of porous ceramic products, refractory materials, graphite, and similar materials.

LB-T27 Porous Ceramic Air Permeability Tester

The LB‑T27 Porous Ceramic Air Permeability Tester is designed to determine the air permeability of porous ceramic products. Air permeability, at room temperature and under a pressure differential of 1 mm H₂O, is defined as the volume of air, in cubic meters, that passes through a porous ceramic sample 1 cm thick and 1 m² in area during one hour under laminar flow conditions.

LB-T28 Water Tank Accessory Flush Valve Inlet/Outlet Valve Life and Thermal Deformation Tester

The LB‑T28 water tank component flushing valve and inlet/outlet valve life and thermal‑deformation testing instrument is a test device designed to evaluate the service life and resistance to thermal deformation of water tank inlet/outlet valves and flushing valves. It complies with the performance requirements specified in JC 987, “Toilet Tank Components.”

LB-T29 Comprehensive Test Apparatus for Sealing and Siphon Water Hammer Performance of Sanitary Ware Valves

The LB‑T29 Comprehensive Test Apparatus for Evaluating the Sealing, Water Hammer, and Siphon Performance of Sanitary Ware Valve Components (hereinafter referred to as the “Test Apparatus”) is primarily designed to measure the sealing performance, water hammer, pressure resistance, noise levels, siphon action, and flow rate of toilet tank valves. It complies with the testing requirements specified in the following standards: GB 26730 “Sanitary Ware—Gravity‑Flushing Devices and Frames for Toilets,” JC 987 “Toilet Tank Accessories,” and JC/T 931 “Mechanical Toilet Flush Valves.” The apparatus features stable pressure, simple operation, an aesthetically pleasing design, a compact footprint, low noise, and computer‑controlled operation that minimizes manual intervention.

LB-T30 Image-Based Sintering Point Refractoriness High-Temperature Physical Property Tester

This instrument is a high‑temperature, transmission‑projection device used to measure the sintering point temperature and refractoriness of molding materials, including raw sand, mixtures, and ceramic raw materials. It enables operators to clearly observe, on the viewing screen, the volume shrinkage, expansion, purification, and complete densification of material samples under elevated temperatures, while simultaneously determining the corresponding temperatures at which these phenomena occur. It provides a reliable basis for material selection in production and serves as an essential testing tool for research and educational purposes. The instrument is widely employed in the foundry, ceramics, and glass industries, as well as in academic and research institutions.

LB-T31 Fully Automatic Pouring Casting Refractory Material High-Temperature Flexural Strength Tester

It is used to determine the high‑temperature flexural strength of refractory products, carbonaceous refractories, dense refractory castables, ceramic rollers, and other ceramics, silicate products, and investment‑mold shell materials. The instrument connects to a computer for automated testing and data processing; it features a simple structure, smooth force application, convenient maintenance, and accurate, reliable results. Reference standards include: GB 3002‑2017 “Test Method for High‑Temperature Flexural Strength of Refractories”; GB/T 13243 “Test Method for High‑Temperature Flexural Strength of Carbonaceous Refractories”; YB/T 5201 “Test Method for Room‑Temperature Flexural Strength of Dense Refractory Castables”; JB/T 2980.2 “Test Method for High‑Temperature Flexural Strength of Investment‑Mold Shell Molds”; and HB/T 5352.1 “Test Methods for Properties of Investment‑Mold Shell Molds—Part 1: Determination of Flexural Strength,” among others.

LB-T32 Fully Automatic High-Temperature Compressive Strength Tester for Refractory Shell and Sand

This instrument is primarily used for the quantitative measurement of stress and strain in nonmetallic materials under high-temperature conditions. It can perform tests on specimens at temperatures ranging from room temperature up to 1400°C, including compressive strength, thermal deformation under a fixed load, residual strength, and room‑temperature compressive strength. The entire testing process is fully automated, with data acquisition and processing handled by a computer.

LB-T33 Refractory Material Load-Softening Temperature Tester (Differential Heating Method)

This instrument is used to evaluate the resistance of refractory materials to softening under high‑temperature load, serving as an important indicator of their high‑temperature mechanical properties. It features automated testing and data processing, automatically generating and saving temperature–deformation curves.

LB-T35 Refractory Material High-Temperature Creep Test Apparatus

This instrument is used to evaluate the resistance of refractory materials to softening under high‑temperature, load‑bearing conditions and serves as an important indicator of their high‑temperature mechanical properties. Product features: automated testing and data processing by computer, with automatic generation and storage of temperature–deformation curves. Reference standards: GB/T 5073 “Test Method for Creep under Load of Refractory Materials,” GB/T 5989, and ISO 3187 “Refractory Materials — Test Method for Temperature of Softening under Load.”

LB-T10 Ceramic Tile Flatness Tester (Simplified Type)

The sanitary ceramic flushing test apparatus employs a variable-frequency, constant-pressure water supply system as its pressure‑supply unit and features automatic control, offering convenient operation and accurate testing. This test device complies with the requirements of GB 26730‑2011 “Sanitary Ware—Test Methods for Gravity‑Flushing Devices and Frames for Toilets,” as well as with the specifications for test equipment set forth in GB 6952‑2005 “Sanitary Ceramics” and JC/T 931‑2003 “Mechanical Toilet Flush Valves.” It is primarily used to evaluate the flushing performance of toilet bowls, squat toilets, and urinals. In brief, the apparatus consists of an electrical cabinet, a test chamber, a water‑supply system, and a control system.

LBNJ-36B High-Strength Bolt with Anti-Slippage Coefficient and Torque Wrench

The LBNJ-36B high-strength bolt slip‑coefficient torque‑tightening machine is a specialized testing device developed specifically for evaluating the slip‑resistance coefficient of high‑strength bolts in steel‑structure projects. In accordance with the testing standards set forth in the Code for Acceptance of Construction Quality of Steel Structures (GB 50205), it is primarily used to precisely pre‑tighten slip‑test specimens of high‑strength bolted connections and to simultaneously measure axial force and torque. It serves as a dedicated instrument for quality inspection of steel structures in construction projects, research institutes, and quality‑inspection agencies.

LBT-1901 New‑Standard Safety Net Lateral Swing Impact and Penetration Tester

This equipment is designed to test the impact resistance of vertically installed Class CI safety nets and to conduct side‑swing tests on vertically installed impregnated‑coated safety nets. It features thickened square‑section tubing, ensuring high overall load‑bearing capacity; welds are robust and fully filled, minimizing deformation. The surface is treated with an anti‑corrosion coating for enhanced rust resistance and wear durability. The motor is equipped with a rain shield, enabling reliable long‑term operation in outdoor workshop environments. Load‑bearing performance is dependable, and laser‑cut components deliver exceptional dimensional accuracy. After sanding and derusting, a protective anti‑rust paint is applied, with neatly finished edges and corners. Assembly holes conform to standard dimensions, and bolt‑hole positioning is precise, facilitating easy assembly and seamless integration of the complete unit.

LBT-JM800J Precision Hot-Air Circulation High-Temperature Oven

This product employs recirculating air for constant‑temperature drying, featuring a high degree of智能化 and requiring no dedicated operator. The temperature is intelligently self‑regulated by the user and can reach the desired level in the shortest possible time. Operating temperatures range from ambient up to a maximum, with users free to select any value within this range; once set, the built‑in automatic control system maintains a stable temperature. An electric blower ensures forced convection of hot air throughout the chamber, resulting in more uniform internal temperatures. It is widely used for precision baking, drying, tempering, preheating, shaping, and processing of materials such as electronics, electrical machinery, telecommunications equipment, electroplating products, plastics, metal and chemical components, foodstuffs, printed circuit boards, powders, impregnated coatings, glass, ceramics, wood products, and building materials.

LB-2609 Fully Automatic Optical Contact Angle Meter for Measuring Water Droplet Contact Angles

The contact angle of a water droplet is defined as the angle formed at the three-phase junction of solid, liquid, and gas, between the liquid–gas interface and the solid–liquid interface. The contact angle serves as an indicator of the wettability of a solid surface; measurements are typically performed using droplets of common liquids. A low contact angle signifies high wettability (hydrophilic) and easy adhesion, whereas a high contact angle indicates hydrophobicity, often associated with significant organic contamination or poor surface adhesion. By measuring the contact angle of a liquid in contact with a flat solid surface—determined from the endpoint of the liquid‑solid‑gas triple‑junction curve and the point of contact on the solid surface—one can assess surface cleanliness. The contact angle provides a quantitative measure of surface wettability; it is commonly evaluated using droplets of readily available liquids. A low contact angle reflects high wettability (both hydrophilic and hydrophobic characteristics) and low surface energy. Contact angle goniometers are employed to characterize the wettability of liquids on solids. By measuring the contact angle, these instruments enable the calculation of key parameters such as the solid’s surface free energy and the liquid’s surface tension. They find broad applications across industries including petroleum, chemical processing, pharmaceuticals, papermaking, and dye manufacturing, serving both research and educational purposes. Our factory offers a comprehensive line of contact angle goniometers, independently developed with cutting‑edge technology, guaranteed quality, and robust software functionality. We can tailor instrument models to meet diverse user requirements.

LBT-1705S High-Precision Automated Intelligent Geosynthetic Sample Preparation System

The LBT-1705S Automated Intelligent Geosynthetic Sample Preparation Machine is specifically designed for geosynthetic testing laboratories. It replaces traditional manual knife‑die punching and cutting, employing a fully automated CNC cutting process to produce standard specimens of various geosynthetic materials in accordance with national and industry standards. This equipment is widely used in third‑party testing agencies, engineering quality inspection centers, and quality‑control workshops of geosynthetic manufacturers. Applicable Materials: Suitable for sample preparation in geosynthetic testing, it can process geotextiles, geomembranes, composite geotextiles, plastic drainage boards, embossed drainage boards, impermeable waterproofing membranes, and other types of geosynthetic products. It is capable of producing standard test specimens required for most geosynthetic tests, including wide‑strip tensile, narrow‑strip tensile, trapezoidal tear, CBR puncture strength, vertical permeability, hydrostatic pressure resistance, effective aperture, and direct shear–pullout friction tests.

SYA-26 Touchscreen Computer Dual-Control Building Material Smoke Density Tester

The touchscreen‑controlled dual‑channel building material smoke density tester is widely used in the construction, fire safety, environmental protection, and research sectors. In the construction field, this testing instrument can be employed to evaluate the smoke density characteristics of building materials, making it suitable for determining the steady‑state smoke production during the combustion of building materials, their products, and other materials.

LBTY-13A Microcomputer-Controlled Rock Elastic Modulus Testing Machine

This testing machine employs a hydraulic power source, electro-hydraulic servo control technology, and computer-based data acquisition and processing, enabling closed-loop control and automated testing. It comprises four main components: the testing frame, the oil supply unit (hydraulic power source), the measurement and control system, and the test fixtures. Its maximum test force is 300 kN/20 kN, and its accuracy class exceeds Grade 1. The machine is suitable for compression tests at rated test forces and can measure the elastic modulus and flexural strength of rock. It features fully automatic microcomputer control and automated testing. Reference standards include JTGE41, JTG 3431 “Test Procedures for Rock in Highway Engineering,” and others.

LBTZ-38A Ozone Aging Test Chamber (Metrology‑Compliant)

The ozone aging test chamber is primarily used to evaluate the ozone‑resistance of polymeric materials and their products. Although ozone occurs in very low concentrations in the atmosphere, it remains a major factor driving the aging of polymeric materials and articles. By simulating and intensifying atmospheric ozone conditions, the chamber enables rapid attainment of test results that closely approximate real‑world service performance or allow for reproducible outcomes. It facilitates the study of ozone’s effects on various polymeric materials and products—including plastics, rubbers, paints, coatings, inks, paper, pharmaceuticals, foodstuffs, cosmetics, textiles, automotive components, packaging materials, construction materials, and electrical/electronic products—and provides a means to quickly assess and evaluate the ozone‑resistance of rubbers as well as the protective efficacy of antiozonants. This information supports the implementation of effective anti‑aging measures to extend the service life of rubber products. Test methods are classified into “static” and “dynamic” approaches: in the static method, the specimen is pre‑stretched before being placed in the chamber for testing; in the dynamic method, the specimen is mounted in the chamber’s fixture and subjected to continuous stretching during the test, with the stretch ratio typically ranging from about 5% to 45% of the specimen’s original length (optional for dynamic testing).

LBTZ-38 Ozone Environmental Aging Test Chamber (capable of dynamic tensile testing)

The ozone aging test chamber is a comprehensive climatic testing device that, in addition to conducting climate‑aging tests, can also evaluate the ozone resistance of polymeric materials, thereby reproducing the destructive light waves present in various environments. It provides environmental simulation and accelerated testing for research, product development, and quality control, and can be used to select new materials, improve existing ones, or assess how changes in material composition affect durability. This equipment is suitable for applications involving plastics, rubber, paints, coatings, inks, paper, pharmaceuticals, food, cosmetics, textiles, automotive components, packaging materials, construction materials, and electrical and electronic products. By simulating and replicating the harmful agents found in different environments, it offers targeted environmental simulation and accelerated testing for research, product development, and quality assurance. It supports material selection, the refinement of existing materials, and the evaluation of how alterations in material composition impact long‑term durability, effectively mimicking the changes that occur when materials are exposed to ozone under various environmental conditions. By exposing materials to ozone, its ozone‑resistance can be quantified. The chamber also features controlled relative humidity, a critical function for many moisture‑sensitive materials and one that is often required by numerous testing protocols.

DLY-T1223 Inorganic Binder Surface Vibration Compaction Tester (New Standard)

This method is applicable to the surface‑vibration compaction technique for preparing non‑cohesive, freely draining granular specimens with inorganic binders, in order to determine the maximum dry density. It is suitable for non‑cohesive, freely draining granular materials with a maximum particle size not exceeding 75 mm and a passing rate through a 0.075‑mm sieve of no more than 15%.

LBT-16Z Geological, Forestry, and Mining Surveying Theodolite Compass

The LBT-16Z theodolite‑compass is suitable for a wide range of surveying tasks in mining operations and forest‑resource assessments, including azimuths, horizontal angles, vertical angles, elevation differences, and distances. It can also be employed in general engineering surveys such as agricultural water‑conservation projects, land‑use planning, topographic mapping, and terrain surveying, making it ideal for applications in forestry censuses, agricultural irrigation, geological exploration, topographic planning, terrain mapping, and academic instruction at colleges and universities.