| 摘要 |
A pneumatically operated animal stunner achieves a high stunning energy to produce concussion and stun an animal without penetration by accelerating a lightweight stunning rod to high speed. To minimize weight, the stunning rod is preferably hollow and made of a lightweight material. A piston sliding within a cylinder with an anti-friction coating drives the stunning rod. The cylinder is pressurized before operation and a catch restrains the piston until it is triggered. To increase stunning rod speed, air is vented ahead of the stunning rod to prevent a build-up of pressurized air that may slow the rod. One end of the stunning rod is provided with a large diameter impact head of a material that resists deformation. The opposite end is made of a wear resistant material and is engaged by the catch. The extension distance of the impact head beyond the front end of the tool is limited and can preferably be adjusted. A specially shaped air-cooled internal bumper is provided to absorb the very high stunning energy of the stunning rod without damage.
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