LPZ mine

The L.P.Z. mine or Leichte Panzermine (Light tank-mine) was a circular, metal-cased German anti-tank mine produced during the Second World War. The mine was accepted into service in 1941,[1] and were intended for use by Paratroops. Production of the mine ended in 1942 with only 31,700 mines produced.[2] The mines were first used during Operation Merkur, the airborne invasion of Crete and were still in use at the end of the war.

A German L.P.Z. (Light Panzermine).
1. Top cover
2. Bottom cover
3. Explosive charge
4. Three cover retaining bolts
5. Detonator
6. Metal detonator retaining collar
7. Flash chamber
8. Safety screw
9. Igniter tube
10. Flame tube
11. Igniter retaining bolt
12. Percussion cap
13. Plunger
14. Striker
15. Igniter compression spring
16. Striker spring
17. Striker retaining steel balls
18. Safety screw cap
19. White radial line
20. White spot
21. Bayonet catches

The mine is circular and has a very rounded appearance, with a central metal cap that covers the mine's safety device, a large screw. The mine is unusual in that it uses five igniter/fuzes linked to a central detonator by a series of flame tubes. Sufficient pressure on the top surface of the mine causes it to press down on one or more of the igniters, compressing a spring and allowing two steel striker retaining balls to escape, releasing the striker, which is forced upwards by a second spring. The striker hits a percussion cap at the top of the igniter, the flash from which travels along a flame tube to a metal chamber in the centre of the mine. If the safety screw is removed then the flash is free to ignite the detonator, which in turn detonates the main charge.