Core Machine Advantages

1. Cast Iron Heavy-Duty Frame, Stable Pressing Force

   One-piece casting body eliminates deformation under repeated punching. Double vertical guide posts keep the ram moving vertically without offset, ensuring consistent cutting depth across the whole sample surface, free of burrs or irregular edges.

2. Large Handwheel Labor-Saving Transmission Design

   Oversized three-spoke handwheel amplifies manual torque, requiring minimal physical force to cut thick rubber, leather and composite sheets. The trapezoidal screw delivers smooth, controllable downward travel, preventing sudden over-stroke damage to cutting dies.

3. Wide Compatibility with Custom Cutting Dies

   Various standard alloy steel dies are optional: dumbbell dies compliant with ASTM D412 / ISO 37, rectangular strip dies, tear test dies and special custom moulds. All cutters can be purchased separately to expand machine functionality as testing needs upgrade.

4. Two Model Options for Different Workspace Demands

   Two specifications (KR-121A / KR-121B) with different table dimensions and maximum cutting thickness. Users can select the proper version based on material sheet width and thickness range to maximize laboratory bench space utilization.

5. Zero Power Consumption, Low Maintenance

   Fully mechanical manual structure with no motor, hydraulic pump or air cylinder. Daily maintenance only requires regular lubrication of the screw and guide posts; no complex electrical faults or oil leakage issues, ideal for field testing and small budget labs.

Complete Technical Specification Tabl

Standard Operation Steps

1. Place the machine on flat horizontal lab bench, fix the base with anchor holes to avoid sliding during cutting.
2. Select the matched cutting die according to test standard, install the die into the bottom of the ram.
3. Lay flat raw material sheet on the metal working table, align the die outline with the target cutting area.
4. Rotate the large handwheel clockwise to lower the ram steadily until the die fully penetrates the material sheet.
5. Reverse the handwheel counter-clockwise to lift the ram back to upper limit, take out the finished standard test specimen.
6. Repeat the above steps to produce multiple uniform samples for batch material testing.

Widely Applicable Materials & Testing Scenarios

• Rubber & Elastomer: Natural rubber, silicone, vulcanized rubber, soft elastomer dumbbell tensile samples
• Plastic Materials: PVC, TPE, PP, PE plastic sheets, modified composite slice test blanks
• Flexible Industrial Materials: Adhesive tape, waterproof roll materials, leather, fabric laminates
• Testing Purposes: Tensile strength, elongation at break, tear resistance, compression permanent deformation lab testing

Supporting Optional Accessories

1. Multi-size standard alloy steel cutting dies (dumbbell, rectangle, crescent tear shape)
2. Wear-resistant backing rubber pad to protect die blade and metal worktable
3. Machine operation manual and standard sample dimension drawing files
4. Custom die moulds tailored to non-standard testing requirements

Global After-sales & Distribution Support