健身器材英语叫做fitness equipment。fitness是指“健康”和“健身”的意思，equipment意为“器材”。一些例句如下：

I bought some new fitness equipment for my home gym. (我为家庭健身房买了一些新的健身器材。)

The gym has a wide range of fitness equipment for every muscle group. (健身房有各种各样的健身器材，适合锻炼每个肌肉群。)

It's important to properly maintain your fitness equipment to ensure its longevity. (重要的是要妥善保养你的健身器材，以确保它的寿命。)