The machine is for Izod Charpy impact testing machine to prepare non-metallic material impact toughness tests of notched specimens used in sample preparation equipment. Easy operation, fast and accurate, can be a punching 20 samples one time.

ØA type tool: 45±1 degree r=0.25±0.025
ØB type tool: 45±1 r=1.0±0.025
ØC1 type cutter: 45±1 r=0.1±0.02
ØC2 type cutter: thickness 1=2±0.1 r<=0.1
ØC3 type cutter: thickness 2=0.8±0.1 r=0.2±0.05
Comes with A/B/C three groups of hard alloy notch cutters, unified 45° notch angle with different root radii to meet various standard requirements:
All cutter heads adopt wear-resistant alloy material, long service life without frequent replacement.
High-Efficient Continuous Batch Processing
Linear sliding fixture base supports simultaneous clamping of multiple standard test bars, stable 30mm/min constant feed speed, processing over 100 specimens per 10 minutes. Uniform milling feed eliminates uneven notch depth from manual pushing, greatly improving laboratory daily sample preparation efficiency.
Fully Enclosed Safety Protective Structure
Transparent integral acrylic safety cover completely wraps the milling area; the machine automatically stops cutting once the cover is opened to prevent accidental contact with high-speed rotating cutter. Internal independent debris storage tank collects plastic scraps, keeping the lab countertop clean and reducing cleaning frequency.
Precise Adjustable Feed Stroke & Clamping System
Handwheel-driven fine-tuning clamping mechanism fits standard test bar sizes of 63.5mm and 80mm, adjustable feed travel range up to 90mm, notch cutting depth stepless adjustable within 0~2.5mm. Thickened stainless work platform avoids vibration deformation during long-term high-frequency cutting.
Compact Desktop Integrated Layout
Small all-in-one bench design occupies minimal lab counter space, overall lightweight structure easy to move between testing stations. Single-phase 220V power supply, no special industrial wiring needed, equipped overload power-off protection to prevent motor burnout under abnormal operation.
Simple Operation With Low Learning Cost
Forward/backward rotary control knob plus speed regulation dial, intuitive operation without complex program setting. New operators can master full cutting workflow within 3 minutes, suitable for mass repetitive sample making in factory QC

| Parameter Item | KR-709 Standard Index |
|---|---|
| Max Milling Travel | ≤90 mm |
| Constant Feed Speed | 30 mm/min |
| Adjustable Notch Depth | 0 ~ 2.5 mm |
| Single Feed Stroke | 10 mm |
| Daily Processing Capacity | 100 pieces / 10 min |
| Standard Notch Angle | 45°±1° |
| Optional Cutter Types | Type A / B / C three sets |
| Applicable Spec Sizes | 63.5mm, 80mm standard impact strips |
| Input Power | AC220V single phase |
| Overall Dimension | L450 × W390 × H360 mm |
| Machine Structure Material | Anti-rust coated cabinet + stainless worktable |



Main Banner Title: KR-709 Automatic V-Notch Specimen Milling Machine ISO GB Compliant
Control Panel Tags: FEED SPEED / FORWARD / BACKWARD / POWER SWITCH
Feature Overlay Tags: A/B/C Multi Cutters / 100pcs/10min High Efficiency / Full Safety Cover / Stainless Platform / Compact Desktop Design
Safety Operation Tip: Always Close Safety Cover Before Starting Milling Cutter
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