Armstrong Machine Builders Pvt. Ltd. Offers Conveyorised Reciprocating Lift. Armstrong Machine Builders Pvt. Ltd. Supplies conveyors and modules. Conveyorised Reciprocating Lift provide fast, efficient, convenient and safe access to/from mezzanines, balconies, basements, and between levels in multiple story buildings. Conveyorised Reciprocating Lift can be installed for through-floor, interior or exterior applications.