1. Purposes and Features of Hydraulic Press

This machine is used to suppress technology for materials with plasticity.

This machine has independent actuating unit and electric system, as well as adopts centralized control with button, which can realize two kinds of operating modes of inching and semi-automatic.

Working pressure and scope of stroke of this machine should be adjusted according to the technology.

2. Main Technical Parameters

3. Performance of Machine and Structure Overview

3.1 machine body composition of beam slide ,working table, column etc, working table through column and nut to close the frame ,body rigidity and maintain good accuracy, slide move up and down along the column, the column bushing material used HT250 to raise the allowable surface pressure ,reduce friction ,column 45# forging material surface hardness treatment.

3.2 Tonnage for suppressing is realized by a piston cylinder with the cylinder block of 45#forged steel. Surface of the piston rod should be dealt with mid frequency hardening. Its hardness is up to HRC38-42 which has a long service life. Main sealing elements of oil cylinder adopt seal ring of imported material to ensure reliable seal.

3.3 hydraulic cushion under the double action function according to user request, cylinder fit inside the hydraulic cushion, hydraulic cushion can work ,can be used as knock out device ,but also for the use of stretch mats

4. Hydraulic System

4.1 Hydraulic system devices should be arranged on offside of fuselage.

4.2 Hydraulic system should adopt plug-in mounting integrated system with advantages of sensitive motion, reliable work and excellent sealing property, etc.

4.3 Oil hydraulic pump is made up by fuel tank, high-pressure pump, electromotor, and cartridge valve, etc. Fuel tank is welded by steel plate and adopts sealed fuel tank. Its oil absorption and back oil region are divided. Oil tank is equipped with cleanout windows and drain plug, which is easier to clean and change oil. The oil pump inlet port with stopping oil absorption oil filter is to ensure the cleanliness of oil and guarantee the service life of oil pump and valve.

4.4 Hydraulic system with reliable seal is no leakage. It main pipelines adopt flanged joint and are equipped with quakeproof devices(anti-knock pipe clamp).                                                                    

5. Electrical Apparatus Control System

5.1 It is equipped with independent electric appliance cabinet. In the cabinet, there is loaded with air switch relay, etc. electric appliances.

5.2 For various alarm signals of press, limit switch and press action can realize motion chain.

5.3 It is equipped with centralized control panel, where arrange necessary action button and option switch.

5.4 It is equipped with a mobile active button.

6. Operating Modes of Press

6.1 Press is equipped with two kinds of operating modes of inching and semi-automatic.

6.2 Stroke of sliding block is adjusted by stroke control device.

6.3 Except for achieving press action of button on the operating station, where it has buttons of “suppressing with two hands”, “return stroke”, “scram” etc.

7. Safety Protection

7.1 Set up scram stop. Once press the scram button, the press will stop immediately.

7.2 In the position of upper and down limit should be equipped with limit switch for sliding block.  

8. Work Environment of Devices

Power supply: three phase380V(±5%), 50HZ; operating ambient temperature: 0-40℃。

9. Choose of Primary Master Copies

    10.Acceptance Standards

10.1 Accuracy: According to GB9166-2009 Accuracy of Four-Column Hydraulic Press

10.2 Design and manufacture should conform to the

JB3818-1999 Technical Conditions of Hydraulic Press

JB3915-1985 Safety Specification of Hydraulic Machine

JB/T8609-1997 Welding Technical Conditions of Metal Forming Machinery

JB9967-1999 Noise Limitation of Hydraulic Press

GB/T5226.1-2002 General Technical Specification of Industrial Machinery Electrical Equipment

11. Technical Data

11.1 The following clear, integrated and correct documents are provided with the leave factory of machine: an operation instruction of equipment, which contents include the purposes and features of machine, main technical parameters, structure overview, hydraulic system, electric system, installation & debugging, maintaining, safe operation rules, etc. literal statements.

11.2 The following clear, integrated and correct drawings are provided with the leave factory of machine: general assembly drawing of equipment, principle diagram of hydraulic system, electrical schematic diagram, and ground plot of arrangement, etc. related drawings.

11.3 A qualified specification of equipment

11.4 A list of encasement

11.5 Several random replacement parts of seal rings, special tools, and foundation bolt.