MJ Research PTC-100

This used MJ Research PTC-100 thermal cycler is a dependable workhorse from one of the pioneering names in PCR instrumentation. It was designed with a reliable heated lid system and interchangeable sample blocks, allowing laboratories to switch between different tube and plate formats without purchasing an entirely new unit. Many of these units remain in service today because of their simple mechanical design and ease of maintenance. The PTC-100 offers programmable temperature profiles suitable for standard PCR amplification, restriction digestion, and other thermal protocols used in molecular biology workflows. Its straightforward keypad interface and LCD display make it approachable for technicians who need consistent results without a steep learning curve. The unit supports a range of block formats including 96-well and specialty formats depending on the configuration originally purchased. This cycler is well suited for teaching laboratories, small research groups, or backup instrumentation in busy molecular biology departments. Because parts and service knowledge for this platform are still widely available, it continues to be a practical and cost effective choice for labs looking to add reliable PCR capacity without a large capital investment.