Product Overview

The KR‑413 butterfly‑pattern sample cutter is a dedicated manual sample‑preparation auxiliary tool for paper and paper‑board vertical compressive‑strength testing. By one‑stroke die‑cutting, it accurately cuts out standard butterfly‑shaped test specimens. These special‑profile samples are used for evaluating edge‑wise compression performance of paper‑board materials, delivering qualified test‑pieces for ring‑crush related compressive‑strength assessment.

Manufactured in accordance with JIS Z0403‑2 and CNS 11486 standards, this compact bench‑top sampler is widely deployed in paper‑making plants, corrugated‑packaging factories, material‑R&D laboratories and third‑party quality‑inspection institutions. It can work cooperatively with compression‑strength testers to complete full‑set paper‑board compression‑performance evaluation workflows.

Core Product Competitive Advantages

1. Precision‑Machined Butterfly‑Shaped Cutting‑Die High‑hardness integral forming die guarantees accurate specimen contour. One‑pass cutting produces complete butterfly‑profile samples with neat, burr‑free edges. It eliminates dimensional distortion and jagged edges caused by manual knife‑cutting, avoiding premature fracture during compression testing.
2. Ergonomic Lever‑Driven Manual‑Press Operation Lab‑friendly long‑handle lever‑press structure. Operators finish complete die‑cutting with single‑hand pressing motion. Built‑in spring return automatically lifts the cutting die after each stroke. No power supply required; it can be placed freely on any laboratory workbench.
3. Light‑Weight Compact All‑Aluminum Alloy Construction High‑strength aluminium‑alloy main‑body reduces overall instrument weight down to only 8.5 kg. Small footprint occupies minimal lab‑bench space. Anti‑slip rubber foot pads stabilise the unit and prevent sliding during cutting‑operations. Easy‑to‑transport for multi‑station sample‑making tasks.
4. High‑Consistency Batch‑Sample‑Making Capacity Precision‑positioning limit stops ensure every butterfly‑specimen maintains identical outline dimension. Excellent repeatability for large‑quantity daily QC‑sampling work. It greatly improves sampling efficiency compared with manual template‑cutting.
5. Good Compatibility With The Complete Paper‑Test Fixture Ecosystem Matches our full‑series paper‑testing auxiliary accessories, including RCT sample cutter, PAT‑ECT sample cutter, CMT‑CCT clamping jig and ring‑crush centre‑disc set. Customers can assemble a complete sample‑preparation workstation according to laboratory‑testing‑requirements.

Complete Technical Parameter Table

Compliance Standards: JIS Z0403‑2, CNS 11486

Standard Complete Test Operating Workflow

1. Pre‑Test Preparation Place cutter on flat rigid laboratory bench. Check cutting‑die surface for paper scraps or nick‑damage. Lay original paper or paper‑board sheet flat on the base platform.
2. Position Raw Specimen Sheet Align target sampling area precisely under the butterfly‑shaped cutting‑die. Keep material flat and wrinkle‑free to prevent deformed cut‑pieces.
3. Lever‑Actuated Die‑Cutting Press down the operating lever steadily until the die fully penetrates through paper‑board material. Release the handle; spring‑mechanism lifts cutting‑die back to original standby‑position.
4. Retrieve Qualified Butterfly Specimen Take out the finished butterfly‑shaped test‑piece. Inspect cutting edges for burrs, incomplete cuts or profile distortion. Discard defective samples and repeat cutting if necessary. Prepared specimens are ready for subsequent vertical compression‑strength tests on compression tester.
5. Post‑Operation Tidying Clear paper‑chip residues from die cavity and base platform. Protect sharp cutting‑edge from heavy‑impact. Store instrument in dry environment. Periodically inspect die sharpness and replace wearing die components.

Wide Industrial Application Scenarios

Pulp‑Paper & Corrugated‑Board Manufacturing Plants

Produce standard butterfly‑shaped specimens for vertical compressive‑strength incoming‑inspection of liner‑board and corrugating‑medium.

Packaging‑Material R&D Departments

Prepare test‑pieces for comparative compression‑performance research of different pulp‑formula paper‑board grades.

University Paper‑Science Laboratories

Special auxiliary‑sample‑making hardware for paper‑packaging‑major teaching‑experiments, matched with compression‑strength testers.

Third‑Party Accredited‑Testing‑Organizations

Produce JIS Z0403‑2 / CNS 11486‑compliant butterfly‑profile specimens for official paper‑material performance‑inspection‑projects.

Standard Factory‑Full‑Delivery Kit

1. KR‑413 butterfly‑type ring‑crush sample‑cutter main‑unit
2. Standard butterfly‑shaped precision cutting‑die assembly
3. Multilingual printed‑operation‑manual complying with JIS Z0403‑2, CNS 11486
4. Factory‑issued performance‑inspection‑certificate

Optional spare‑parts & accessories: RCT sample cutter, PAT‑ECT sample cutter, CMT‑CCT clamp, ring‑crush centre‑disc (sold separately).

Global Distributor & After‑Sales‑Support

We provide remote‑one‑on‑one operational guidance covering lever‑cutting procedure and cutting‑die maintenance notes. Spare‑parts stock includes replacement butterfly‑cutting‑dies. Bulk‑order customers can combine‑purchase together with compression‑strength‑testers. 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‑413 Butterfly‑Type Ring‑Crush Sample Cutter | JIS‑CNS‑Compliant Manual Sampler For Paper‑Board Vertical‑Compression‑Strength Specimen‑Preparation

Core‑Feature‑Labels‑For‑Product‑Images

Precision Butterfly‑Cutting‑Die | Lever‑Spring Manual‑Operation | Burr‑Free Specimen Edges | Light‑Weight Aluminium‑Alloy Body | Compact Desktop Layout | High‑Batch‑Sampling Repeatability | Compatible With Multiple Paper‑Test Fixtures | JIS‑Z0403‑2‑CNS‑11486‑Compliant

Safety‑Operation‑Reminder

Keep fingers away from cutting‑die zone during lever‑pressing stroke. Avoid heavy‑impact on sharp cutting‑edge. Clean paper debris after batch‑cutting work. Inspect die sharpness on regular intervals.