cadex defence

Anvils

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Head anvils The anvil is the impact device that a helmet comes into contact with during an impact test. Every standard gives a detailed description of the anvil to be used and the description is almost always identical from one standard to the next.

anvil
Quick release system The quick release system consists of a male and female component held together by a clamp. The male part connects to the bottom pedestal of a machine while the female part connects to the bottom of an anvil. This system is used to hold the anvil in position on the impact pedestal allowing the anvil to be changed in just a few seconds, without any tools

Our system is the only one on the market to offer the flexibility of 360 degree positioning of the anvil. This functionality is extremely important for certain anvils (Curbstone, Hazard, Cylindrical, Etc...) that are used to test severe impacts.



Quick Release System

1 - Quick Release Male
anvil
  • Available in stainless steel or steel plated with nickel to prevent corrosion.
  • Only one is needed per machine or pedestal.
  • There is a 1/2 NC 13 thread under the part that will allow a screw stud to be installed to secure it in place, connecting it to the machine.

2 - Quick Release Female
  • Available in stainless steel or steel plated with nickel to prevent corrosion.
  • One female component is needed for each anvil.
  • There is a 1/2 NC 13 thread on top of the part that will allow a screw stud to be installed to hold this unit in place, connecting it to the anvil.
anvil

3 - Quick Release Assembly
anvil

anvil

All our anvils have been designed according to industrial standards. They are constructed of either stainless steel or nickel plated steel to resist to corrosion. Every one of our anvils has a 13 thread attachment at the bottom center of the anvil so that it can be connected to a quick release female adaptor which is included with each anvils. The quick release male adaptor is sold seperatly.

1 - "M.E.P. Support" Anvil
The M.E.P support plate Anvil holds the M.E.P. Pad in place on the machine during the impact test.

The support plate has been designed to accommodate two models of M.E.P. pads used in the industry.

The support plate also has an additional hole to connect the ISEA Size 7 head form on a load cell system.

The plate is made of aerospace Aluminum.
anvil

2 - The "Hemispherical" Anvil
anvil The Hemispherical Anvil is used by several standards.

It has a spherical surface with a radius of 48 mm ( ± 1 mm). The spherical surface constitutes one half of the surface of a sphere.


3 - "Cylindrical" Anvil

 

The Cylindrical Anvil is a full cylinder with a diameter of XX ± 1 mm and a minimum length of 200 mm.

This anvil can be produced with different diameters. The industry uses three different diameters:
  • 50 ± 1 mm X 200+ mm long
  • 75 ± 1 mm X 200+ mm long
  • 100 ± 1 mm X 200+ mm long
Cylindrical anvil

4 - The "Curbstone European" Anvil
Surbstone European anvil The Curbstone European anvil has two sides forming an angle of (105° ± 5°), each has a slope of (52.5° ± 2.5°) towards the vertical and meeting along a striking edge with a radius of 15 mm ± 0.5 mm. The height is at least 50 mm and the length is not less than 125 mm. The orientation is 45° to the longitudinal vertical plane at points B, P, and R, and 45° to the base plane at point X (front low, back up).

5 - The "Curbstone" Anvil
The Curbstone Anvil has two faces making an angle of 105° ± 0.5° and meet along a striking edge with a radius of 15 mm ± 0.5 mm. The height is not less than 50 mm and the length is not less than 200 mm. Curbstone anvil

6 - "Triangular Hazard" Anvil
anvil The Triangular Hazard Anvil has a 90° ± 0.5° striking edge with a 0.5- to 1.5- mm radius. The height is not less than 50 mm and the length not less than 200 mm.

7 - The "Flat" Anvil
The Flat Anvil has a flat surface of a minimum 125 ± 3mm or 130 ± 3mm diameter circle and is at least 24 mm thick. Flat anvil

8 - The "Edge" Anvil
Edge anvil The Edge anvil is designed exclusively for the Snell norms.