There are some lenders that offer bad credit loans for the purchase of equipment. However, if you only need the equipment for the short-term or you're unsure if your business can afford the rates being offered, you can consider some lease options as well.
These include installment plans, where the provider purchases the equipment on your behalf and you pay it off in regularly scheduled payments. There's also finance leasing, where the lender rents the equipment to you for an agreed-upon period.