Compliance Standards

ASTM D5420, D2794, D3029, D4226

Applications

Falling dart impact, also known as Gardner impact, is a traditional method for evaluating the impact strength or toughness of a plastic material. The test is often used to specify appropriate materials for applications involving impact or to evaluate the effect of secondary finishing operations or other environmental factors on plastic impact properties. Gardner (Heavy Duty) Impact Testing is widely used to establish quality control standards for resistance to impact surface damage and penetration of many materials including Plastics, Paints, Laminated Coatings, Plastics, Fiberglass, Sheet Metals and Plywood.

Details

1. Manual placement of samples for impact test
2. Heavy duty base to withstand the impact shock
3. Bench top model
4. Slotted guide tube of 1 meter (100 cm) (40 Inches) length with graduation in Newton Meter
5. Bracket holds the tube in vertical position by attaching it to the base
6. Bracket holds the pivot arm alignment for the striker, about 50 mm (2") under the tube
7. Hard chrome plated weights : 0.9 kg (2 lbs), 1.8 kg (4 lbs), 3.8 kg (8 lbs) Mass of falling weight
8. Hardened Steel Striker
9. For Geometries GA, GB & GC, a specimen of (15.86 ± 0.10 mm)
10. With geometries GA & GD, a specimen support tray with hole 76 mm ± 0.3 mm is mounted in the apparatus.
11. Specimen Support plate with hole

Standard supply

1. Basic plate with clamping device
2. Guide tube with inch-scale
3. Falling weight 2 lbs
4. Falling weight 4 lbs
5. Falling weight 8 lbs
6. Ball punch 12.7 mm (0.500 Inches) diameter
7. Anvil - 16.3 mm (0.640 Inches) die
8. Manual