Profile: Shuangli Building Materials Equipment Co., Ltd. specializes in providing prestressed hollow core slabs. Our products include concrete hollow core slab making machine, concrete lintel/purlin machine, concrete column making machine, lightweight wall panel machine, and concrete pipe making machine, concrete mixing machine, and concrete batching plants. Concrete lintel machine is one of the new designs for manufacturing pre-stressed concrete lintels or beams. The machine works on the principle of pushing and squeezing. It is 4-5 times more productive than the conventional lintel forming method. The finished concrete lintels cast by this machine are very compact and smooth. Each lintel can be reinforced with 4-9 pre-stressed steel wires.