HT28 油缸带顶出的四柱油压机性能介绍：
一、用途：
本系列的液压机适用于可塑性材料的压制工艺，如冲压、弯曲、翻边、薄板拉伸等，还适用于校正、压装、粉末制品成型以及非金属材料的压制成型。
二、特点：
HT28 油缸带顶出的四柱油压机通常具有以下性能特点：
结构坚固稳定：四柱式结构设计，搭配合理的油缸配置，能够承受较大的工作压力，运行稳定可靠。机身采用优质材料制造，经过严格的加工和处理工艺，具有良好的刚性和强度，可确保长期使用过程中设备的精度和稳定性。
顶出功能实用：配备的油缸顶出装置，顶出力大小适中，可满足多种工艺需求。顶出行程可根据实际加工情况进行调整，操作方便。顶出动作平稳，能够精确控制顶出的位置和力度，保证工件的加工质量和生产效率。
液压系统高效：采用先进的液压系统，由性能可靠的油泵、油缸及各种液压阀等组成。系统具有良好的密封性，可有效防止泄漏，保证液压油的清洁度，延长液压元件的使用寿命。液压系统的压力、流量可根据工艺要求进行调节，实现快速、稳定的工作循环，提高生产效率。
电气控制智能：配备智能化的电气控制系统，操作界面简洁明了。可实现手动、半自动等多种操作模式，方便操作人员根据不同的加工要求进行选择。控制系统具有故障诊断和报警功能，能够及时发现和排除故障，保证设备的正常运行。
安全性能良好：设置了多种安全保护装置，如急停按钮、上下限位开关等，可有效防止设备在运行过程中出现意外情况，保障操作人员的人身安全和设备的正常运行。同时，设备的防护栏、防护罩等部件齐全，可避免操作人员接触到危险部位。
适用范围广泛：适用于金属材料的拉伸、弯曲、翻边、校正、压装等多种加工工艺，也可用于塑料、橡胶等非金属材料的成型加工。可根据不同的工艺要求，配备相应的模具，满足不同产品的生产需求。
维护保养方便：设备的结构设计便于维护和保养，各部件的安装位置合理，易于检查和维修。液压系统的元件布局紧凑，便于更换和调整。同时，设备的润滑系统可自动或手动进行润滑，减少部件的磨损，延长设备的使用寿命。
8.本系列液压机具有继电器控制和PLC控制两种电气控制系统，有调整、手动及半自动三种操作方式，可实现压和定制两种工艺方式。定压成型时及自动回程动作。工作台中间装有顶出装置，除顶出制品外，可作为液压垫用于反拉伸制件饿成型工艺，其他工作压力与行程，可根据工艺需要，在规定范围内调整。
三、HT28 油缸带顶出的四柱油压机主要由机身、液压系统、电气控制系统等部分组成，其工作原理如下：
动力传递：电机驱动油泵运转，将液压油从油箱中吸出并加压，形成高压油液。高压油液通过油管输送到各个液压元件，为油压机的工作提供动力。
主油缸工作：当需要进行压制工作时，电气控制系统控制相应的电磁换向阀动作，使高压油液进入主油缸的无杆腔，推动主油缸的活塞下行，从而带动滑块（连接在活塞上）向下运动，对放在工作台上的工件施加压力，实现压制工艺。同时，主油缸有杆腔的油液通过电磁换向阀流回油箱。在压制过程中，可通过调节液压系统中的溢流阀来控制油液压力，以满足不同的压制力要求。
顶出油缸工作：当压制完成需要顶出工件时，电气控制系统控制另一组电磁换向阀动作，使高压油液进入顶出油缸的无杆腔，推动顶出油缸的活塞向上运动，顶出杆伸出，将工件从模具中顶出。顶出油缸有杆腔的油液则通过电磁换向阀流回油箱。顶出的力度和行程可通过调节相应的压力阀和行程开关来控制。
回程：压制和顶出完成后，电磁换向阀再次动作，使主油缸和顶出油缸的油路换向。主油缸的有杆腔进入高压油液，推动活塞上行，滑块回程至初始位置；顶出油缸的有杆腔进入高压油液，使顶出杆缩回至初始位置。此时，油缸无杆腔的油液流回油箱。
保压与泄压：在压制过程中，若需要保持一定的压力一段时间，液压系统可通过保压回路实现。保压时，油泵停止供油，由蓄能器或单向阀等元件保持系统压力。当工作完成后，需要对系统进行泄压，以防止在拆卸模具或进行其他操作时发生危险。泄压过程通过相应的泄压阀来实现，缓慢释放系统中的高压油液，使系统压力降至安全范围。
Performance Introduction of the Four-column Hydraulic Press with a Top-out Cylinder of Model HT28
I. Purpose:
This series of hydraulic presses is suitable for the pressing processes of malleable materials, such as stamping, bending, flanging, thin plate stretching, etc. It is also suitable for processes like calibration, press fitting, molding of powder products, as well as the compression molding of non-metallic materials.
II. Features:
The four-column hydraulic press with a top-out cylinder of model HT28 typically has the following performance characteristics:
Solid and Stable Structure: With a four-column structural design and a reasonable cylinder configuration, it can withstand a large working pressure and operate stably and reliably. The fuselage is made of high-quality materials and undergoes strict processing and treatment processes, having good rigidity and strength, which can ensure the accuracy and stability of the equipment during long-term use.
Practical Top-out Function: Equipped with a cylinder top-out device, the top-out force is moderate and can meet various process requirements. The top-out stroke can be adjusted according to the actual processing situation, and the operation is convenient. The top-out action is smooth, and the top-out position and force can be precisely controlled to ensure the processing quality of workpieces and production efficiency.
Efficient Hydraulic System: Adopting an advanced hydraulic system, it is composed of reliable oil pumps, cylinders, and various hydraulic valves, etc. The system has good sealing performance, which can effectively prevent leakage, ensure the cleanliness of the hydraulic oil, and extend the service life of hydraulic components. The pressure and flow rate of the hydraulic system can be adjusted according to process requirements, achieving a fast and stable working cycle and improving production efficiency.
Intelligent Electrical Control: Equipped with an intelligent electrical control system, the operation interface is simple and clear. It can achieve multiple operation modes such as manual and semi-automatic, which is convenient for operators to select according to different processing requirements. The control system has functions of fault diagnosis and alarm, which can timely detect and troubleshoot faults to ensure the normal operation of the equipment.
Good Safety Performance: A variety of safety protection devices are set up, such as emergency stop buttons, upper and lower limit switches, etc., which can effectively prevent unexpected situations during the operation of the equipment, ensuring the personal safety of operators and the normal operation of the equipment. At the same time, complete components such as protective fences and protective covers of the equipment can prevent operators from coming into contact with dangerous parts.
Wide Application Range: It is suitable for various processing processes of metal materials, such as stretching, bending, flanging, calibration, press fitting, etc., and can also be used for the molding processing of non-metallic materials such as plastics and rubbers. Corresponding molds can be equipped according to different process requirements to meet the production needs of different products.
Convenient Maintenance: The structural design of the equipment is convenient for maintenance. The installation positions of each component are reasonable, making it easy to inspect and repair. The components of the hydraulic system are compactly arranged, which is convenient for replacement and adjustment. At the same time, the lubrication system of the equipment can be lubricated automatically or manually to reduce the wear of components and extend the service life of the equipment.
This series of hydraulic presses has two types of electrical control systems, namely relay control and PLC control, and has three operation modes: adjustment, manual, and semi-automatic. It can achieve two process modes: pressing and customized. During fixed-pressure molding, there is an automatic return action. A top-out device is installed in the middle of the worktable. In addition to ejecting products, it can be used as a hydraulic cushion for the molding process of reverse stretching parts. The working pressure and stroke can be adjusted within the specified range according to process requirements.
III. The four-column hydraulic press with a top-out cylinder of model HT28 is mainly composed of parts such as the fuselage, hydraulic system, and electrical control system, and its working principle is as follows:
Power Transmission: The motor drives the oil pump to operate, sucking out and pressurizing the hydraulic oil from the oil tank to form high-pressure oil. The high-pressure oil is transported to each hydraulic component through the oil pipe, providing power for the operation of the hydraulic press.
Operation of the Main Cylinder: When a pressing operation is required, the electrical control system controls the corresponding electromagnetic directional valve to act, allowing the high-pressure oil to enter the rodless cavity of the main cylinder, pushing the piston of the main cylinder to move downward, thereby driving the slider (connected to the piston) to move downward and apply pressure to the workpiece placed on the worktable to achieve the pressing process. At the same time, the oil in the rod chamber of the main cylinder flows back to the oil tank through the electromagnetic directional valve. During the pressing process, the oil pressure can be controlled by adjusting the relief valve in the hydraulic system to meet different pressing force requirements.
Operation of the Top-out Cylinder: When the workpiece needs to be ejected after the pressing is completed, the electrical control system controls another set of electromagnetic directional valves to act, allowing the high-pressure oil to enter the rodless cavity of the top-out cylinder, pushing the piston of the top-out cylinder to move upward, and the ejector rod extends to eject the workpiece from the mold. The oil in the rod chamber of the top-out cylinder flows back to the oil tank through the electromagnetic directional valve. The top-out force and stroke can be controlled by adjusting the corresponding pressure valve and travel switch.
Return Stroke: After the pressing and top-out are completed, the electromagnetic directional valve acts again to reverse the oil circuit of the main cylinder and the top-out cylinder. The high-pressure oil enters the rod chamber of the main cylinder, pushing the piston to move upward, and the slider returns to the initial position; the high-pressure oil enters the rod chamber of the top-out cylinder, making the ejector rod retract to the initial position. At this time, the oil in the rodless cavity of the cylinder flows back to the oil tank.
Pressure Maintaining and Pressure Relief: During the pressing process, if it is necessary to maintain a certain pressure for a period of time, the hydraulic system can achieve this through the pressure maintaining circuit. During pressure maintaining, the oil pump stops supplying oil, and components such as the accumulator or check valve maintain the system pressure. After the work is completed, the system needs to be depressurized to prevent danger during mold disassembly or other operations. The pressure relief process is achieved through the corresponding pressure relief valve, slowly releasing the high-pressure oil in the system to reduce the system pressure to a safe range。
四、技术参数（Technical Parameters）：
参数名称 | | |
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公称力 | | | | | | | | | | | | | | | | | |
顶出力 | | | | | | | | | | | | | | | | | |
液体最大工作压力 | | | | | | | | | | | | | | | | | |
滑块行程 | | | | | | | | | | | | | | | | | |
顶出行程 | | | | | | | | | | | | | | | | | |
滑块下平面至工作台面最大距离 | | | | | | | | | | | | | | | | | |
滑块行程速度 | 空 程 下 行 | | | | | | | | | | | | | | | | | |
工 作 | | | | | | | | | | | | | | | | | |
回 程 | | | | | | | | | | | | | | | | | |
工作台尺寸 | 左 右 | | | | | | | | | | | | | | | | | |
前 后 | | | | | | | | | | | | | | | | | |
机器外形尺寸 | 左 右 | | | | | | | | | | | | | | | | | |
前 后 | | | | | | | | | | | | | | | | | |
地面上高度 | | | | | | | | | | | | | | | | | |
电机 总功率 | | | | | | | | | | | | | | | | | |
机器重量 | | | | | | | | | | | | | | | | | |
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| Parameter Name | Unit | HT 32-40A | HT 32-63 | HT 32-100 | HT 32-100A | HT 32-160 | HT 32-160C | HT 32-200 | HT 32-315 | HT32-400 | HT 32-500 | HT 32-500C | HT 32-630 | HT 32-800 | HT 32-1000 | HT 32-1250 | HT 32-1600 |
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| Nominal Force | KN | 400 | 630 | 1000 | 1000 | 1600 | 1600 | 2000 | 3150 | 4000 | 5000 | 5000 | 6300 | 8000 | 10000 | 12500 | 16000 |
| Ejector Force | KN | 120 | 190 | 190 | 190 | 240 | 240 | 400 | 630 | 800 | 1000 | 1000 | 1000 | 1600 | 2000 | 2000 | 2000 |
| Maximum Working Pressure of Liquid | Mpa | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
| Stroke of Slider | mm | 350 | 450 | 600 | 600 | 700 | 700 | 700 | 800 | 800 | 900 | 900 | 900 | 800 | 900 | 900 | 900 |
| Stroke of Ejection | mm | 150 | 200 | 200 | 200 | 200 | 200 | 250 | 300 | 300 | 350 | 350 | 350 | 450 | 450 | 450 | 450 |
| Maximum Distance from the Lower Plane of the Slider to the Worktable Surface | mm | 700 | 800 | 900 | 900 | 1000 | 1000 | 1100 | 1250 | 1350 | 1500 | 1500 | 1600 | 1600 | 1600 | 1600 | 1600 |
| Speed of Slider Stroke (Downward in No-load) | mm/s | 50 | 100 | 22 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 80 | 80 | 80 | 80 |
| Speed of Slider Stroke (During Working) | mm/s | 25 | 25 | 14 | 16 | 10 | 10 | 18 | 12 | 10 | 15 | 15 | 12 | 12 | 6-10 | 6-10 |
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| Speed of Slider Stroke (Return Stroke) | mm/s | 50 | 80 | 50 | 80 | 50 | 50 | 80 | 60 | 45 | 80 | 80 | 50 | 50 | 45 | 40 |
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| Dimension of Worktable (Left-Right) | mm | 500 | 560 | 680 | 680 | 750 | 1000 | 950 | 1250 | 1200 | 1400 | 2200 | 1400 | 1500 | 1530 | 1700 | 2000 |
| Dimension of Worktable (Front-Back) | mm | 460 | 500 | 580 | 580 | 640 | 800 | 900 | 1120 | 1200 | 1400 | 1400 | 1200 | 1400 | 1600 | 1600 | 1600 |
| Dimension of Machine Appearance (Left-Right) | mm | 1160 | 2400 | 2500 | 2500 | 2700 | 2700 | 2825 | 3235 | 3235 | 4060 | 6500 | 4200 | 4800 | 5250 | 5250 | 5800 |
| Dimension of Machine Appearance (Front-Back) | mm | 900 | 1400 | 1500 | 1500 | 1700 | 1700 | 2600 | 2200 | 2200 | 3525 | 3800 | 4200 | 4000 | 3800 | 3800 | 4000 |
| Height of Machine above the Ground | mm | 2250 | 3100 | 2950 | 3150 | 3400 | 3400 | 3725 | 4295 | 4500 | 4995 | 4740 | 5600 | 6000 | 5800 | 6000 | 6200 |
| Total Power of Motor | Kw | 4 | 7.5 | 7.5 | 7.5 | 7.5 | 7.5 | 15 | 15 | 15 | 30 | 30 | 45 | 60 | 75.5 | 75.5 | 75.5 |
| Weight of Machine | Kg | 2000 | 3000 | 4000 | 4000 | 6000 | 6000 | 11000 | 14000 | 22000 | 28000 | 38000 | 34000 | 40000 | 48000 |
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本资料所列数据为参考数据，如与机床实际数据不符，应以机床实际数据为准，以上参数如有变动，恕不另行通知，本公司保留对此资料的最终解释权!
Remarks: The data listed in this document are for reference only. In case of any discrepancy with the actual data of the machine tool, the actual data of the machine tool shall prevail. The above parameters are subject to change without prior notice, and our company reserves the right to the final interpretation of this document。
