The quartz stone sink is made of up to 93% natural quartz, resin, mineral pigments, and other additives. After color matching and high vacuum pressure, it is formed into an extremely compact complex. The sink is formed at one time under high temperature and high pressure by a hydraulic press with a mold. It has the advantages of wear resistance, pressure resistance, high-temperature resistance, corrosion resistance, and anti-penetration.
In addition to the hydraulic press, producing quartz stone sinks also requires dispersers, kneaders, oil temperature controllers, and molds for various sink types. Dispersers and kneaders mix raw materials, while oil temperature controllers heat the molds. Hydraulic presses are essential for pressing and molding. Depending on the sink size, the number of tanks and other parameters, different tonnages and structures of quartz sink hot-pressing hydraulic presses are chosen. Based on Zhengxi Company’s design and production experience, commonly used four-column hydraulic presses include 315 tons, 400 tons, 500 tons, and 630 tons.
Features of 630-ton Quartz Stone Sink Forming Hydraulic Press:
1. It has an independent power structure and electrical system and adopts button centralized control, which can realize inching and semi-automatic operation. This machine’s working pressure and travel range can be adjusted according to the process requirements.
2. The body of the 630-ton quartz stone sink hot press forming hydraulic press adopts a three-beam and four-column structure. It consists of an upper crossbeam, slider, workbench, column, main cylinder, hydraulic power system, and electrical system. The upper crossbeam, slider, and workbench are welded with steel plates, and the internal stress is treated by vibration aging. The column is 45# steel.
3. The four columns of the 630-ton quartz stone sink hot press forming hydraulic press are all surface-intermediate frequency quenched and chrome-plated. The cylinder body is 45# steel, and the surface of the piston rod is treated by medium-frequency quenching, which has a long service life. The main components of the cylinder use material sealing rings to ensure reliable sealing. T-slots on the workbench and the slide beam facilitate user mold installation.
4. Hydraulic system. The hydraulic power mechanism is independent and consists of a pump, motor, hydraulic integrated valve block, oil tank, and other components. It also includes an oil filter device and various liquid-level display devices. The hydraulic system adopts an integrated cartridge valve, which is small in size and compact in structure. It has small flow resistance, large flow, sensitive action, reliable operation, good sealing performance, convenient maintenance, and long service life.
5. Electrical system. The 630-ton quartz stone sink forming hydraulic press uses two control schemes: relay and PLC. The PLC electrical control system is sensitive, reliable, and flexible. Its working mode can be adjusted according to the production process and actual conditions.
6. Safety devices:
(1) Standstill and emergency stop buttons. When an abnormality occurs, press the “Standstill” button to stop the action. Press the “Emergency Stop” button to stop the motor.
(2) The motor control part of the 630-ton quartz stone water tank hot press forming hydraulic press has thermal protectors, circuit breakers, and other devices. Protect the motor from overload and damage and overcurrent short circuit protection.
(3) The main cylinder lower chamber control block is equipped with an anti-slip drop device and a safety valve. The slider can be stationary at any position to prevent the slider from sliding down uncontrollably.
(4) Overload protection. The 630-ton quartz stone water tank hot press forming hydraulic press has a safety valve in its hydraulic system circuit. When the oil pressure exceeds the set value, the hydraulic system automatically overflows and limits the pressure. The protection setting value is adjustable to ensure that the press will not work overloaded.
(5) Overpressure protection. The electric contact pressure gauge always displays the pressure in the upper chamber of the main cylinder. It stops working when the set pressure is reached, effectively protecting the system from overpressure.
Steps for Molding Quartz Stone Sinks with a 630-ton Hydraulic Press:
1. Heating with a mold temperature controller. The mold temperature controller is used to heat the mold. It should be heated in advance, and the heating temperature should be around 160 degrees.
2. Mold installation. The mold temperature controller needs to be filled with heat transfer oil before use and connected to the mold through a pipeline. After the mold is installed, the mold is fixed to the machine with T-bolts.
3. Weighing. Weigh the prepared mixing materials. The weight of a single sink is 17.5kg.
4. Loading. Manually place the weighed materials into the mold on the workbench of the 630-ton four-column hydraulic press.
5. Pressing. Start the 630-ton four-column hydraulic press for downward pressing. This type of pressing requires holding pressure for 15 minutes. After the holding time is over, the machine automatically opens the mold and ejects the product.
6. Take out the parts. Manually take out the pressed double-slot quartz sink.
7. Post-processing. Remove the remaining edges of the pressed quartz sink.
The 630-ton four-column hydraulic press is a machine designed and produced by Zhengxi Company specifically for producing quartz stone sinks. The equipment can also be used to press and form molded quartz laundry sinks, SMC sinks, and BMC sinks. It can also be used to stretch, blank, shear, and stamp other metal products. If you have any needs, contact us!
