Product Introduction 
The rub resistance tester operates on a sector reciprocating rubbing principle. A printed specimen of specified dimensions is fixed on the specimen table, and a standard rubbing paper is fixed on the rubbing head. Under a selected load, the rubbing head contacts the specimen surface smoothly and performs reciprocating sector rubbing. The equipment records the number of rubs via a counter and automatically stops when the preset number is reached. By observing the degree of wear or color transfer on the ink layer, the rub resistance of the ink is quantitatively evaluated. This test simulates the surface friction that printed products experience during handling, stacking, and use, making it an effective method for assessing ink adhesion and abrasion resistance.

Key Features 
Standard Sector Rubbing Method Uses a sector reciprocating rubbing motion, simulating actual surface friction conditions for realistic test results.
Multiple Selectable Loads Provides three standard loads of 250g, 500g, and 1000g, meeting testing needs for different paper grammages and ink types.
Digital Counter Precise Control Equipped with a digital counter that can preset the number of rubs and stops automatically, offering intuitive operation and accurate data.
Standard Specimen Size Compatibility Test specimen size of 100×200mm and rubbing paper size of 50×220mm comply with relevant testing specifications.
Simple and Efficient Operation Specimens are fixed with side pressure plates, and the rubbing head is securely hooked, making installation easy and the testing process clear.
Automatic Stop, Safe and Reliable The equipment stops automatically when the preset number of rubs is reached, preventing over-rubbing; operation without specimen and rubbing paper is strictly prohibited, ensuring safety.
Robust and Durable Construction Weight of approximately 20kg with a sturdy body, suitable for long-term frequent use in laboratory and production environments.
Broad Industry Applicability Suitable for use by printing plants, ink manufacturers, and research departments for testing the rub resistance of ink layers on paper-based printed products.

Main Technical Specifications 

FAQ
1. What materials are suitable for the Rub Resistance Tester?
It is primarily used for testing the rub resistance of ink layers on decorative printed paper products, and can also be used for abrasion resistance evaluation of other flat printed materials such as packaging paper, labels, and book covers.
2. How should the load (250g, 500g, 1000g) be selected?
Load selection should be based on the grammage of the printed material, ink type, and testing standard requirements. Generally, lightweight paper and regular inks use 250g, while thicker boards and special inks may require 500g or 1000g. Refer to applicable standards or customer requirements.
3. What are the specifications for the rubbing paper?
It is recommended to use clean 80g/㎡ copy paper or A4 white paper, cut into 50×220mm strips as rubbing paper. Ensure the rubbing paper surface is clean and free of impurities to avoid affecting test results.
4. How is the counter set and operated?
After turning on the power, use the setting device to set the desired number of rubs and wait 8 seconds for automatic saving. Press the test button to clear the count and start; the machine stops automatically when the preset number is reached. Press the test button again for the next test.

5. What safety precautions should be observed during use?
Never operate the machine without specimen and rubbing paper installed; if the rubbing paper or specimen breaks, stop the machine promptly; turn off the power after use and keep the equipment clean.
6. How are test results evaluated?
Rub resistance is evaluated by comparing the degree of ink layer wear and color transfer before and after rubbing, as well as the number of rubs required to reach a specified wear level. Specific evaluation criteria can follow industry standards or internal control indicators.

After-Sales Service
Established in 2007 and with nearly two decades of experience, Shandong Annimet Instrument Co., Ltd. is a professional manufacturer integrating R&D, production, and sales of laboratory testing and sample preparation equipment. Quality is our foundation. We are your bridge from concept to reality. We deliver more than just instruments — we deliver confidence. This Rub Resistance Tester comes with a 12-month warranty and lifetime technical support. Our professional team offers 24/7 service response, free installation guidance, operation training, and rub resistance testing method consultation. For any inquiries, please contact our customer service team; we are dedicated to providing comprehensive pre-sales, in-sales, and after-sales support. Hotline: 400-9933-057, Email: anmt_test@126.com.