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Safety Operation SMC Precision Hydraulic Press Servo Closed - Loop Control

Categories SMC Hydraulic Press
Brand Name: ZHENGXI
Model Number: Yz71
Certification: ISO9001,CE
Place of Origin: China
MOQ: 1 set
Price: Negotiable
Payment Terms: L/C, T/T
Supply Ability: 200 sets/year
Delivery Time: 90 days
Packaging Details: Standard international wooden case or iron pallet package
After-sales Service Provided: Engineers available to service overseas
Power Source: Hydraulic
Controller: PLC
CNC or Not: CNC
Worktable size: Up to clients' requirement
Oil: hydraulic oil
Color: Optional
Advantage: High cost performance and high production
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    Safety Operation SMC Precision Hydraulic Press Servo Closed - Loop Control

    Yz71-500T SMC/BMC Hydraulic Press machine for composite frame manhole cover forming​


    Sheet Molding Compound for car parts

    ZHENGXI is a historical supplier of large hydraulic press systems for plastic and composite forming applications. One of our core competencies lie in the production of hydraulic press for SMC (Sheet Molding Compound) - BMC (Bulk Molding Compound) / GMT (Glass Mat Thermoplastics). These press systems represent the best option when it comes to high volume production of composite parts with high mechanical properties.

    SMC - BMC - GMT COMPRESSION PRESS SYSTEMS

    We supply SMC, BMC & GMT compression press systems, with capacity from 5,000 up to 40,000 kN, working at very high pressure. All the expertise of ZHENGXI relies on the low consumption / high performance feature, realized through active levelling and PLC control.

    Our products allow you to save energy and time, with cycle time from 45 seconds for structural parts up to 120 seconds for highly technical parts such as trunk lids or tailgates.

    SMC - BMC - GMT FORMING PRESS FEATURES:

    • Effort from 5,000 up to 40,000 kN

    • Platen size up to 3,000 X 2,500 mm

    • Opening 3,000 mm

    • Stroke 2,000 mm

    • Fast closing speed 600 mm/s

    • Working speed 20 mm/s

    • Fast opening speed 600 mm/s

    Integration in automated production lines

    Furthermore, you can benefit from the ZHENGXI know-how in complete automated production lines, all our presses can be implemented with automatic loading and unloading robots, cutting systems or other add-on equipment such as HP RTM or vacuum systems, GMT oven or thermal regulation skid. ZHENGXI press systems can run both automatically and semi-automatically, whatever your needs. More than 100 units are running worldwide, manufacturing parts for well-known companies of the auto, aeronautics, aerospace and energy industries. Sheet Molding Compound for car parts.


    Technical specs Yz71-500T SMC/BMC Hydraulic Press machine for composite frame manhole cover forming


    Structural form

    H-frame type

    Model

    Unit

    500A

    630

    800

    1000B

    1000C

    1500B

    2000B

    2500A

    Pressure capacity

    KN

    5000

    6300

    8000

    10000

    10000

    15000

    20000

    25000

    Lifting capacity

    KN

    1000

    1200

    1000

    1000

    1000

    1150

    1400

    1700

    Worktable size F-B

    mm

    1400

    1400

    2200

    2200

    2200

    2600

    2400

    2500

    Worktable size L-R

    mm

    1400

    1800

    2800

    3200

    3000

    3400

    3200

    3500

    Open height

    mm

    1500

    2200

    2400

    2400

    2400

    3200

    3200

    2200

    Slide stroke

    mm

    1000

    1700

    1900

    1900

    2000

    2600

    2650

    1600

    Slider fast descending speed

    mm/s

    200

    200

    400

    300

    500

    400

    400

    300

    Slider slow descending speed

    mm/s

    5-50

    5-50

    25-50

    25-50

    25-50

    25-50

    25-50

    50

    Slider preloading speed

    mm/s

    1-25

    1-25

    1-25

    1-25

    5-25

    1-25

    1-25

    3-18

    Slider pressing speed

    mm/s

    1-8

    1-8

    1-15

    1-15

    1-9

    1-15

    1-15

    1-6

    Opening speed

    mm/s

    2-25

    2-25

    2-25

    2-25

    1-5

    2-25

    2-25

    2-25

    Slider slow returning speed

    mm/s

    5-100

    5-100

    5-30

    5-30

    15-45

    5-30

    5-30

    5-100

    Slider fast returning speed

    mm/s

    200

    195

    190

    200

    200

    200

    200

    220

    Motor power

    KW

    49

    59

    161

    153

    78

    200

    233

    181.5

    Physical dimension B ( L-R)

    mm

    3150

    3160

    4270

    4300

    4450

    4450

    4350

    4900

    Physical dimension A (F-B)

    mm

    4150

    4650

    6350

    7134

    5340

    7300

    7300

    8900

    Physical dimension C (Total height)

    mm

    6500

    6900

    7300

    7425

    8450

    9200

    9500

    7550

    Pit size E (F-B)

    mm

    4000

    4000

    4500

    5000

    4600

    5000

    5000

    5400

    Pit size D (L-R)

    mm

    4150

    4650

    6500

    7000

    6800

    7500

    7500

    8000



    Safety Device


    1) emergency stop button: press the "emergency stop" button, the hydraulic system, including the motor, will stop running. The press is equipped with two emergency stop buttons, one on the operation control panel and the other on the mobile operation table. In any state and situation, press any one of the emergency stop buttons, and the press stops immediately.


    2) Two-handed operation button: Press the synchronization time with both hands within 0.5S, if it exceeds, it will be invalid.


    3) Hydraulic Support Safety Circuit: In order to prevent the slider from going out of control, a hydraulic double-support safety valve circuit is installed in the lower chamber of the piston main cylinder to ensure safety. The hydraulic interlocking circuit is set to ensure that the upper chamber of the main cylinder can not be pressurized when the supporting safety valve is not opened.


    4) The machine is equipped with power supply, work and other indicators.


    5) Longitudinal adjustable safety grating protection device is installed on the front of the press with adjustable position and 600 mm protection height.


    6) Overload protection: The hydraulic system is equipped with a safety valve, which automatically overflows and discharges oil when the oil pressure exceeds the set value (adjustable), and sends an alarm signal at the control box.


    7) Electrical system protection, motor overload protection and short-circuit protection, control circuit short-circuit protection and system alarm function.


    8) Touch screen displays all solenoid valves and travel switches for monitoring.


    The advantage of ZHENGXI Hydraulic System


    1) The hydraulic control system of the equipment is mainly arranged on the right side of the fuselage with neat appearance and convenient maintenance. Hydraulic system is composed of oil tank, hydraulic main control system, pump station, pressure gauge, filter and other accessories. It is mainly connected to the whole hydraulic control system through pipeline.


    2) The hydraulic system of this machine mainly adopts the advantages of servo closed-loop control, hydraulic oil temperature control and double support protection control.


    3) The fuel tank is arranged on the right side of the fuselage. It is mainly used to supply oil and heat dissipation of hydraulic oil for the driving elements of the whole equipment and to fill the cylinder quickly when the slider goes down rapidly. The oil tank is steel plate welded by mixed gas, which reduces welding slag and is designed as a closed structure. Pickling, passivation and rust-proof treatment are carried out during tank installation. Industrial flour dough is used to clean up again before shipment to ensure that there are no residues and debris on the inner wall. The fuel tank panel is equipped with a return tank to facilitate the recovery of waste oil.


    4) The side of the tank is provided with a manhole for cleaning the window cover of the tank to facilitate the cleaning of the tank. The tank passes through a special oil injection hole, and the bottom of the tank is also equipped with magnets to absorb impurities in the oil. The bottom of the tank is slightly inclined and equipped with an oil drain valve. The tank is welded with steel plate. Before assembly, pickling, passivation, rust-proof treatment and leak-proof test should be carried out.


    5) The tank is equipped with a level gauge (with temperature display) on the side, which is convenient for observation when refueling.


    6) The tank is equipped with an independent oil filter with a filtering accuracy of 10 microns. Equipped with plugging alarm device of filter element of oil filter to remind replacement of filter element. The oil tank is connected with the outside world through the air filter to ensure that the hydraulic oil is not polluted by the outside world. The filtering accuracy of air filter is 20 micron.


    7) The main oil pump and servo motor are arranged orderly on the oil tank. The high-pressure pump adopts high-quality high-pressure internal meshing gear pump. The internal meshing gear pump has the advantages of low noise, energy saving, high-pressure stability and small heat output.


    8) The main hydraulic control system of the equipment adopts the cartridge integrated valve produced by Shandong Jining Taifeng Company, which is installed on the thickened tank panel and connects the valve parts, instruments and pumps through high-pressure pipelines. The cartridge type integrated valve is characterized by compact structure, sensitive and reliable action, strong anti-pollution ability, small liquid flow resistance, convenient maintenance and long service life. The structure of two-way cartridge valve mainly consists of cartridge parts, control cover plate, pilot control valve and integrated valve block, and slide valve structure.


    9) In the hydraulic system of this machine, there are pressure detection points in key parts. Pressure of each part is measured by pressure gauge and pressure sensor. Pressure gauge is directly in the form of pointer system. Pressure sensor is reflected by analog quantity to PLC through touch screen display. The fault of hydraulic press can be quickly diagnosed and the working state of hydraulic press can be monitored through the pressure detection point.


    10) The type of hydraulic oil used in this machine system is L-HM46# anti-wear hydraulic oil (Party B provides the first injection).


    11) Hydraulic tubing is made of cold rolled seamless steel tube and high pressure hose, which are well-known brands in China. Flange connection is used for large diameter (inner diameter greater than 20 mm). As far as possible, SAE flange connection is used in pipeline connection. For butt welding, the welding effect is good and the oil leakage problem caused by poor welding is effectively solved. The pipeline is fixed with pipe clamps, reasonably arranged and easy to maintain. Long-term vibration or activity of the pipeline all use high-pressure hose for excessive.


    12) Servo control and manual pressure valve are used to regulate the pressure of hydraulic cylinder. Normally, the maximum value is adjusted manually as safety value, and the reference value is set automatically by servo control (set value on man-machine interface). The two modes can be switched freely. (Servo-controlled acceleration and deceleration of pressure and flow fluctuation is installed in the system, which can improve the stability of pressure control.) Pressure under servo-controlled mode is set and displayed directly on the touch screen. Pressure display accuracy is 0.1 Mpa, and pressure control accuracy is less than <0.2 Mpa.


    13) The top of the tank is equipped with a waste oil collecting device, which is introduced into the collecting hole. A tank chamber is designed at the corner of the tank to collect the waste oil from the storage platform, so as to facilitate regular manual pumping by users.



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