Lvssn Industrial Products Technology (Nanjing) Co., Ltd.

Laser Cut Vacuum Pump Diaphragm Solutions

Diaphragms made of plastic or rubber are very important components in vacuum pumps. Because the diaphragm must form a tight seal between the pump's inner and outer chambers for efficient pumping. The edge of the diaphragm must be smooth and actinic, not rough or uneven. The cutting process using a CNC laser cutting machine can meet the requirements of these material applications, provide high-quality trimming, improve product consistency, and reduce edge damage that may be caused by mechanically cutting the diaphragm.

Cutting the diaphragm with a laser cutter provides good edge quality while reducing the risk of damage from mechanical cutting. For this application, it is practical to cut a central mounting hole in a 1mm (0.039”) thick diaphragm made of layered neoprene and polytetrafluoroethylene (Teflon®). The hole diameter is 22.9mm (0.9").

The cutting process uses a laser cutting head equipped with a 2.5” focal length lens, which provides a focused spot of 0.1mm (0.004”). And use CDA (clean and dry air) as the auxiliary gas, and spray it through a 0.9mm (0.0345") wide nozzle at a flow rate of 100 PSI to reduce the damage of the molten material to the lens. In this way, it can flow at 74mm/s (175inches/min ) cutting speed to complete the cut. The final cut edge is very smooth, and the amount of melting is very small.

Write a Message

Our Partner

Conduct in-depth cooperation with more than 500 foreign buyers, and maintains long-term cooperation with more than 1,000 domestic advanced manufacturing suppliers.