Product Overview

The KR‑402 multi‑functional compression‑strength analyser is a versatile desktop test unit for paper and corrugated‑fibre‑board performance assessment. Built with dual‑column rigid frame architecture, high‑precision load‑cell sensor and stepper‑motor drive system, this micro‑computer‑controlled instrument completes multiple compression‑related tests by swapping dedicated auxiliary fixtures. It supports Ring‑Crush (RCT), Edge‑Crush (ECT), Flat‑Crush (FCT), Pin‑Adhesion (PAT), CMT / CCT / SCT testing workflows.

By applying steady vertical compressive load onto standard specimens, the system captures peak‑collapse force and deformation data, delivering core indicators for evaluating stacking‑resistance, edge‑bearing capacity and inner‑layer bonding quality of paper‑based packaging materials. The equipment complies with GB/T 2679.8, GB/T 6546, GB/T 6548, GB/T 2679.6 and CNS‑relevant specifications. It is widely deployed in corrugated‑carton factories, pulp‑paper mills, packaging‑R&D departments and accredited third‑party QC laboratories for raw‑material incoming inspection and finished‑product quality validation.

Core Product Competitive Advantages

1. Multi‑Test‑Mode Integrated Main‑Unit, Flexible Fixture Expansion One single host supports RCT, ECT, FCT, PAT, CMT, CCT and SCT test items. Users switch among test scenarios by installing corresponding optional jigs and sample cutters, avoiding purchasing multiple separate testers and optimising laboratory‑equipment investment budget.
2. Dual‑Column Rigid Mechanical Framework & Precision Sensing Module Heavy‑duty double‑column structural design effectively suppresses frame deflection under compression load. High‑accuracy load‑cell acquires force signal in real‑time; the touch‑screen controller processes data digitally, showing test‑force curves, peak‑value and group‑statistical results directly on‑screen.
3. Rich Selectable Compression‑Speed Settings Apart from standard 12.5 ± 1.0 mm/min test velocity, preset fixed‑speed options include 12.7 mm/min, 25.4 mm/min, 38.1 mm/min, 50.8 mm/min, 60 mm/min. Custom‑speed parameters can be configured to satisfy diverse international‑standard‑test‑demands.
4. Built‑In Thermal‑Printer for Instant Test‑Report Output On‑board thermal printing unit outputs complete test records including individual readings, maximum / minimum and average values. Operators obtain paper‑form archives without connecting external computers or peripheral printers, improving efficiency for high‑volume batch‑testing.
5. User‑Centred Safety & Easy‑Maintenance Layout Equipped with emergency‑stop button for risk handling during test‑running. Over‑load protection prevents sensor damage. Modular‑design for key components simplifies routine maintenance and spare‑part replacement for long‑term continuous lab‑operation.

Complete Technical Parameter Table

表格

Supported Test Items with Optional Accessories:

1. RCT (Ring Crush Test): Requires ring‑crush centre disc plus RCT sample cutter
2. ECT (Edge Crush Test): Requires ECT‑PAT sample cutter plus auxiliary guide‑blocks
3. FCT (Flat Crush Test): Requires FCT circular sample cutter
4. PAT (Pin Adhesion Test): Requires PAT‑adhesion test fixture
5. CMT / CCT / SCT: Requires CMT‑CCT dedicated clamping‑jig

Compliance Standards: GB/T 2679.8, GB/T 6546, GB/T 6548, GB/T 2679.6, CNS‑relevant paper‑board‑testing standards

Standard Complete Test Operating Workflow

1. Pre‑Test Preparation Place instrument on rigid, vibration‑free lab bench. Power‑on and finish system self‑diagnosis. Select and mount target‑test auxiliary fixture according to test‑type. Prepare standard specimens by matching sample‑cutter; condition specimens under specified temperature‑humidity environment. Set compression‑speed and relevant test‑parameters on touch‑screen interface.
2. Specimen Placement Put conditioned standard‑specimen correctly inside the installed fixture. Ensure specimen sits upright without tilting or eccentric offset, to eliminate abnormal stress‑condition that would cause erroneous measuring‑data.
3. Launch Compression‑Strength Test Initiate test‑run. Motor‑driven upper platen descends at set constant speed and applies vertical compressive force. The system continuously collects force‑displacement data until specimen collapses. Instrument automatically captures peak‑crush‑strength value. Press emergency‑stop button in case of abnormal situation.
4. Data Review & Report Output Read peak‑force result and curve information from touch‑screen. Conduct multiple‑parallel‑specimen tests to get batch‑statistical‑data. Print inspection report by built‑in thermal‑printer for lab‑archiving purpose.
5. Post‑Test Tidying Platen automatically returns to standby‑position. Remove damaged specimen, clear debris from fixture and compression‑platens. Swap fixture for next‑group‑test if needed. Shut‑down main power‑supply after completing all‑test batches. Perform regular sensor‑calibration.

Wide Industrial Application Scenarios

Pulp‑Paper & Corrugated‑Carton Manufacturing Plants

Multi‑indicator QC for liner‑board, corrugating‑medium and finished corrugated‑boards; run RCT / ECT / FCT / PAT routine tests for incoming‑material acceptance and production‑process adjustment.

Packaging‑Material R&D Departments

Compare compression‑performance of different pulp‑formula and corrugated‑structure samples; optimise carton‑material formulation and lightweight‑packaging‑solution.

University Packaging‑Science Laboratories

Multi‑function teaching‑experiment equipment for paper‑packaging majors for researching compression‑failure mechanism of fibre‑board‑materials.

Third‑Party Accredited‑Testing‑Organizations

Carry‑out multi‑standard‑compliant paper‑board compression‑strength assessment and issue formal inspection‑documents for product‑certification audits.

Standard Factory‑Full‑Delivery Kit

1. KR‑402 multi‑function compression‑strength‑tester main‑unit
2. Standard pair of compression platens
3. Built‑in thermal‑printer plus initial roll of printer‑paper
4. Power‑supply connecting‑cable
5. Multilingual printed‑operation‑manual complying with GB/T 2679.8, GB/T 6546, GB/T 6548, GB/T 2679.6
6. Factory‑issued performance‑inspection‑certificate

Optional Separately‑Ordered Accessories: PAT‑ECT sample cutter, RCT sample cutter, CMT‑CCT clamping‑jig, ring‑crush centre‑disc set, butterfly sample‑cutter & butterfly sample‑jig.

Global Distributor & After‑Sales‑Support

We provide remote‑one‑on‑one operational guidance covering fixture‑swap, speed‑parameter‑setting and periodic sensor‑calibration procedures. Spare‑parts stock includes printer consumables, load‑cell‑replacement parts and fixture‑components. Bulk‑order customers can request custom‑force‑range and overseas‑specific‑voltage variants. Regional‑exclusive‑agent privileges contain priority‑production‑scheduling, OEM private‑branding‑services and complete‑set high‑definition product‑marketing‑image‑resources.

Product‑Banner‑Marketing‑Slogan

KR‑402 Multi‑Function Paper‑Board Compression‑Strength Tester | RCT‑ECT‑FCT‑PAT‑CMT‑CCT‑SCT Multi‑Test‑Mode Analyser For Corrugated‑Fibre‑Board Quality‑Control

Core‑Feature‑Labels‑For‑Product‑Images

Dual‑Column Rigid‑Frame | Multi‑Test‑Mode By Swappable‑Fixtures | 5‑3000N Measuring‑Range | Multiple‑Selectable Compression‑Speed | Touch‑Screen Data‑&‑Curve‑Display | On‑Board Thermal‑Print‑Output | Over‑Load‑&‑Emergency‑Stop‑Protection | Multi‑GB‑CNS‑Standard‑Compliant

Safety‑Operation‑Reminder

Do not insert hands between upper‑and‑lower platens during test‑execution. Ensure specimen is centred to avoid eccentric‑loading. Keep platens and fixtures clear of paper‑scraps. Execute regular sensor‑calibration to guarantee measuring‑accuracy.