Agilent 1260 Infinity II G7112B Binary Pump

This used Agilent 1260 Infinity II G7112B Binary Pump is a solvent delivery module built to support high resolution gradient separations on the 1260 Infinity II HPLC platform. Designed around dual piston, low volume pump heads, the binary configuration precisely mixes two mobile phase solvents at high pressure before delivery to the column, giving analysts tighter gradient control and better retention time reproducibility than typical low pressure mixing designs. The pump has been functionally tested for flow accuracy and pressure stability prior to listing. As part of the 1260 Infinity II family, this pump integrates directly with other Agilent modules over the same system bus and works with OpenLab and ChemStation software, so it slots into most current Agilent HPLC stacks without special adaptation. Analytical, pharmaceutical, and environmental labs commonly favor binary pumps for methods that demand sharp gradient transitions and fine composition control, including impurity profiling and complex mixture separations. The unit's built in leak sensors and pressure monitoring help protect against downtime during long sequence runs. This pre-owned module gives labs an economical way to add binary gradient capability to an existing system or replace a failing pump without committing to new equipment pricing. It is well suited for contract labs, universities, and QC departments that need reliable, high pressure mixing performance on a proven Agilent platform.