Bio-Rad PTC-225

The Bio-Rad PTC-225 Peltier Thermal Cycler is a used, dual block instrument known for its dependable performance and compact footprint on the bench. Originally part of the MJ Research product line before its acquisition by Bio-Rad, this cycler supports two independent 96 well blocks, allowing two different protocols to run simultaneously. It remains a favorite among labs needing flexible throughput without investing in two separate machines. This model delivers fast, uniform heating and cooling thanks to its Peltier based thermal system, and it supports gradient PCR for primer optimization work. Its rugged design and simple control panel have made it a long standing workhorse in molecular biology and genetics laboratories performing routine amplification, cloning preparation, and sequencing reactions. The dual block configuration also makes it attractive to teaching labs and shared core facilities. Sold in tested, functional condition, this PTC-225 offers an affordable route into reliable thermal cycling for labs with budget constraints. It is a solid choice for researchers who want proven Bio-Rad and MJ Research engineering at a used equipment price point, and it continues to see active demand from academic and clinical research buyers.