EN 960 - HALF HEAD FORM - MAGNESIUM K1A

half magnesium The half Magnesium head form KIA is currently used in uni-axis impact tests (uni-axis Z direction).

half magnesium
half magnesium
In the table below you will find several different head form sizes. Six sizes have been selected for our regular products line that we carry in stock at all times, but it is possible to order other formats.

The sizes of those head forms (i.e. A, C, E, J, M, O) are currently used for 90% of all world standards. All other sizes can be manufactured on request with only a few days delay dependant on our production schedule.

SIZE Delta Y (mm) Delta X (mm) Mass Grs Circumference
A 89.5 24 1820 +- 13 500
B 91 24.5 510
C 93 25 520
D 94.5 25.5 530
E 96 26 2415 +- 13 540
F 97.5 26.5 550
G 99 27 560
J 102.5 27.5 3100 +- 13 570
K 104 28 580
L 104.5 28.5 590
M 107 29 3130 +- 13 600
N 108.5 29.5 610
O 110 30 3200 +- 13 620
P 112 30.5 630
Q 113.5 31 640


To see a specification sheet about the half MAG.K1A head form, click the corresponding link: A  C  E  J  M  O 


  • The half ISO MAG.K1A head form is identified with reference lines (see sketch below). These lines are grooved into the head form to provide the end user with more flexibility to align positions with their products.

    • Reference plane
    • Basic plane
    • Central vertical axis transversal plane
    • Central vertical axis longitudinal plane


  • The half MAG.K1A head form is shipped with a certificate of calibration and serial number on a data sheet.

  • The half MAG.K1A head form is calibrated in the center of gravity at the intersection of the vertical axis.

  • The casting is done with permanent steel moulds, this method eliminates any contaminants.

half magnesium
half magnesium

half magnesium
Description A C E J M O Spherical-Impactor
Head Form size 1820 ? 2415 3100 3130 3200 3100
Clamp 758 ? 1173 488 458 388 488
4 bolts for clamp to head 82 ? 82 82 82 82 82
Accelerometer kits 10 ? 10 10 10 10 10
Drop Follower / Flying arm 730 ? 730 730 730 730 730
Aluminum Ball arm 0 ? 590 590 590 590 590
Stainless steel Ball arm 1600 ? 0 0 0 0 0
Magnesium Ball arm 0 ? 0 0 0 0 0
 
Total 5000 ? 5000 5000 5000 5000 5000
Standard Request(total drop mass) 5.0±0.1 ? 5.0±0.1 5.0±0.1 5.0±0.1 5.0±0.1 5.0±0.1


  • Clamp: The clamp is the holding device that stops the ball arm from moving and maintains the head form in position during the impact test.

  • 4 bolts for clamp to head: Are screwed with the clamp on the head form.
    Only 5/16 NC 18 - 1 3/4 inch length bolts should be use to avoid any damage to the tread in the head form.

  • Accelerometer kit: The accelerometer kit is the assembly of the sensor, accelerometer, support bed, and cable.

  • Drop carriage / Flying arm: Is the drop guiding system on the machine that will maintain the head form and other parts of the drop assembly in the trajectory of the impact.
  • Ball Arm: The moving joint that connects to the head form to allow for adjustable positioning. It also has space inside itself for the accelerometer sensor.
half magnesium


half magnesium
half magnesium