Arbeitstier — meaning in English

English meaning

plodder noun Someone, or an animal, that moves slowly and heavily.
workaholic noun Someone who feels compelled to work constantly, often to an unhealthy degree.
workhorse noun A horse kept mainly for heavy physical work; a draft horse.

Arbeitstier is used for these senses in English:

beast of burden A draft animal, a pack animal such as a donkey, mule, llama, camel, horse, or ox, that carries or pulls a load for the benefit of a human.
beast of burden (by extension) Any domesticated animal trained to perform tasks for humans, such as a herding dog or trained falcon.
plodder A person who works slowly, making a great effort with little result; a person who studies laboriously.
workhorse (by extension) Someone or something that does a lot of work; something or someone who works consistently or regularly.
working animal An animal which is kept mainly to do work, such as a draft animal or a service animal, not mainly as a pet nor for its animal products.

noun Someone, or an animal, that moves slowly and heavily.
noun Someone who works hard and steadily but achieves little, or who studies in a slow, dogged way.
noun (industry) A machine that pushes soap, margarine, or similar substances through a shaped opening so they can be cut into blocks.