You can trust on our portable and hand-operated pressure pumps no matter you are perform hydraulic (oil and water) pressure modifications or pneumatic (air) pressure adjustments . We optimize our pneumatic pumps for ambient temperature resistance, pressure consistency, and stability in producing compatible pressures. Instead of using check valves, our handheld pressure pumps use isothermal bellows chambers. This mechanism maintains temperature consistency, which improves pressure integrity. HSIN hand-operated pressure pumps utilize patented screw press functionality to achieve high levels of pressure without strenuous manual effort. Our high-end hydraulic pumps are capable of generating pressure up to 60,000 psi.
Beijing HENGSHENG WEIYE Co., Ltd is one of the most professional manufacturers of calibration instruments in China with 13 years ‘experience. So far, “HSIN” brand calibration instruments have been used in over 73 countries worldwide and enjoy good reputation. 2. What can you buy from us? We have been successfully manufactured Pressure/ Temperature calibration instruments such as high accuracy Digital Pressure Gauge,Pressure Calibrator, Pressure Calibration Comparator Pumps as well as Process Calibrator and Temperature Calibrator Dry Blocks. 3. Do you have your own factory? Yes. Our factory is located in Changping District, Beijing, China. 4. Delivery time and payment? Samples Leading Time: 3-7 working days Delivery Time: Within 7-15 days after payment Payment: T/T, Western Union, Paypal