Product Introduction

Core Product Highlights

1. Fixed Profiling Mold Design, No Repeated Tool Setting
   Custom profiling fixtures lock the sample forming contour permanently. Operators only fix raw blanks before milling, no repeated calibration of cutter position during batch preparation, greatly boosting daily lab sample-making efficiency and cutting down repeated adjustment labor cost.
2. Smooth Burr-Free Milling, Avoid Test Data Interference
   High-hardness integral spiral milling cutter runs at constant high speed, producing neat, burr-free sample edges without micro cracks or notches on the gauge section. It eliminates abnormal fracture caused by rough cutting surfaces during tensile testing, ensuring consistent test repeatability between parallel specimens.
3. Thickness Wide Compatibility & Adjustable Fixture
   Clamping structure supports raw material thickness from 1mm up to 30mm, compatible with thin plastic film, medium-thickness sheet and thick engineering plastic slabs. Modular fixture assembly can be customized into Type 1 / Type 2 / Type 5 multi-spec dumbbell molds according to different standard requirements, supporting both polyolefin pipe and rigid PVC raw material sample preparation.
4. Built-In Dust Collection Matching, Clean Working Environment
   Reserved interface for matched vacuum dust cleaner, which instantly sucks plastic milling debris during processing, preventing powder accumulation on the workbench and cutter surface, reducing frequent equipment cleaning frequency and protecting lab operators from plastic dust inhalation.
5. Dial Indicator Auxiliary Positioning, Ultra-High Dimensional Consistency
   Equipped precision dial gauge above the milling head to monitor cutter feed depth in real time, effectively controlling dimensional tolerance of the sample gauge length and transition arc. Uniform specimen size eliminates test error differences caused by inconsistent manual cutting techniques.
6. Compact Desktop Integrated Layout
   Integrated cabinet structure occupies limited countertop area, fitted with anti-slip adjustable foot pads to stabilize the machine during high-speed milling vibration. Standard single-phase 220V power supply requires no industrial special wiring, suitable for small QC rooms and teaching labs with limited space.

Complete Technical Parameter Table

Supported Standard Specimen Types

1. GB/T 1040 Type 1 / Type 2 / Type 5 dumbbell tensile samples for general plastic sheets
2. GB/T 8804.2 Type 1&2 samples for PVC-U / PVC-C plastic pipes
3. GB/T 8804.3 dumbbell specimens for PE, PP polyolefin pipelines
4. Rectangular standard blanks for Vicat softening point & thermal deformation tests (GB/T 1633, GB/T 8802)
5. Custom special-shaped test strips per customer material inspection requirements

Standard Full Sample-Making Operation Steps

1. Equipment Pre-Checking

   Power on the machine and run idle milling for 1 minute to check cutter rotation stability and dial indicator normal reading; connect the vacuum cleaner if dust removal is needed.
2. Raw Material Clamping
   Cut plastic slab/pipe blank into rough size slightly larger than standard specimen, loosen fixture bolts, place the blank flat in the profiling mold cavity and lock the clamping assembly tightly to avoid shifting during milling.
3. Milling Feed Operation
   Rotate the manual feed handwheel to drive the high-speed cutter along the profiling mold contour for automatic shaping, keep steady feed speed to ensure smooth sample surface.
4. Specimen Taking & Inspection
   Complete one-cycle milling, retract the cutter and loosen fixture to take out finished dumbbell strip, visually check for burrs, cracks or dimensional out-of-tolerance defects.
5. Debris Cleaning & Continuous Production
   Start the vacuum cleaner to clear accumulated plastic chips on the workbench and cutter, install new raw blanks to carry out batch sample preparation.
6. Equipment Shutdown Maintenance
   Cut off power supply after daily use, fully clean cutter, mold and workbench with soft brush, store the machine in a dust-proof environment.

Widely Applicable Industry Scenarios

Plastic Pipe Production Enterprises

Modified Plastic & Masterbatch Factories

Biodegradable Material R&D Labs

University Material Science Teaching Labs

Third-Party Polymer Testing Institutions

Standard Factory Delivery Kit

1. KR-728 main manual profiling dumbbell sample cutter host
2. High-hardness integral spiral alloy milling cutter
3. Multi-spec interchangeable profiling fixture set (Type1/Type2 standard molds)
4. Precision dial positioning gauge assembly
5. Adjustable clamping bolt set and specimen cleaning brush
6. On-off control button assembly and complete power cord
7. Multilingual operation manual matching GB plastic test standards
8. Factory dimensional calibration inspection certificate
9. Optional matched vacuum dust suction cleaner

Global Distributor & After-Sales Support

English Overlay Text For All Product Pictures