When joining two copper pipes together, a hydraulic crimper is the tool you will want to use. This type of pipe crimping tool compresses the fitting on the pipe, creating a tight, watertight seal, which is essential in both plumbing and HVAC systems. Because a hydraulic copper pipe crimper allows the pipe fitting to be installed without heat or solder, it also provides a more efficient and much safer way to do so. At Jingyan, we make high-quality hydraulic copper pipe crimping tool for use by professional plumbers.