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Hydraulic forging hammer uses high-pressure hydraulic oil as its core transmission medium, combined with an accumulator energy storage system to drive the hammer head to complete high-speed impact forging. It is a core precision forging equipment in the high-end industrial forging field. With its core characteristics of precise and controllable impact energy, high forming accuracy, uniform forging density, and strong automation adaptability, it is widely used in high-precision forging scenarios such as precision machinery, aerospace, military, automotive parts, and high-end hardware.
Hydraulic forging hammers belong to the category of precision power forging hammers and are divided into two main series, fully hydraulic transmission and hydraulic-pneumatic hybrid transmission. Hydraulic forging hammers rely on a high-pressure hydraulic system to achieve rigid and controllable impact, with an impact energy utilization rate of over 90%, far exceeding the approximately 60% of pneumatic hammers. The equipment supports stepless adjustment of impact force, impact stroke, and impact frequency, and can adapt to both high-precision free forging and precision die forging processes. Hydraulic forging hammer equipment can meet the precision shaping needs of high-end small parts and also complete the batch forming processing of large and heavy forgings.
The upper and lower chambers are entirely driven by hydraulic oil, with no gas involved. This results in stable pressure, extremely high precision, good sealing, no pressure drift, and minimal impact energy error. Meanwhile, the accessories have a long service life and an extremely low failure rate, making them suitable for the production of high-precision, high-value-added precision forgings.
Utilizing a hybrid mode of hydraulic oil supply and gas energy storage, it relies on the expansion of compressed gas to achieve impact. Its structure is relatively simple, its cost is lower, impact energy is large, cost-effectiveness is high, but its precision is slightly lower than that of fully hydraulic models. The type is suitable for batch forging of large-tonnage, conventional heavy forgings.
Open machine structure, spacious operating space, convenient workpiece loading and unloading, and high flexibility. Suitable for large free forging workpieces and irregularly shaped forgings, it has extremely high versatility and is suitable for flexible production of multiple varieties and small batches.
Double-column arched machine body, stronger rigidity, more uniform force distribution, less vibration, and structural stability superior to single-arm models. Suitable for medium-to-high precision die forging and free forging, it is a commonly used model in small and medium-sized precision forging workshops.
Features a bidirectional clash structure between the upper and lower hammer heads, canceling out impact forces. This results in minimal machine vibration, no ground impact load, and no need for a heavy foundation, maximizing energy utilization. Suitable for high-end precision die forging and mass production of high-precision aerospace and military parts.
Primarily controlled by a handle, with precise hydraulic system pressure adjustment. Simple, stable, and reliable operation. Suitable for routine precision forging in small and medium-sized factories, offering excellent cost-effectiveness.
Equipped with a fully CNC PLC system, it allows for programmed forging parameters, automatic cyclic operation, and supports parameter storage, one-click recall, and data traceability. Adaptable to automated production lines and standardized mass production, it is a core piece of equipment in intelligent forging production lines.
Indícanos más detalles sobre tus necesidades, como modelos, cantidades, países, etc.
Indícanos más detalles sobre tus necesidades, como modelos, cantidades, países, etc.
Las principales diferencias entre los martillos de forja hidráulicos y los martillos neumáticos residen en cuatro aspectos: el medio de propulsión, la precisión, la eficiencia energética y los ámbitos de aplicación.
Los martillos neumáticos utilizan aire comprimido como fuente de energía, lo que se traduce en una estructura sencilla, un bajo coste y un funcionamiento y mantenimiento cómodos. Sin embargo, los martillos de forja hidráulicos adolecen de grandes fluctuaciones de presión, una precisión moderada y una baja eficiencia energética, lo que los hace adecuados para situaciones de forja básicas, como herrajes comunes, aperos agrícolas y piezas en bruto mecánicas convencionales. Los martillos de forja hidráulicos, accionados por aceite hidráulico a alta presión, están controlados por CNC, son de alta precisión, eficientes desde el punto de vista energético y potentes, adecuados para la forja de precisión con troqueles, la forja de metales especiales y la producción de piezas de alta gama, y son compatibles con líneas de producción automatizadas.
El principio de funcionamiento básico de un martillo de forja hidráulico se basa en el almacenamiento de energía hidráulica, la transmisión de presión diferencial y la distribución precisa del aceite para el retorno tras el impacto. Se basa en una unidad de bomba de aceite accionada por motor para la presurización continua y en un acumulador para almacenar energía potencial a alta presión. Mediante un grupo de válvulas hidráulicas de precisión que controla la conmutación del circuito de aceite, se consigue un impacto descendente a alta velocidad y un retorno preciso de la cabeza del martillo. Todo el proceso se puede controlar en bucle cerrado, y los parámetros de impacto son cuantificables, ajustables y memorizables, lo que garantiza una forja de alta precisión.
En la actualidad, la tendencia predominante en el sector se basa en dos principios fundamentales: la transmisión totalmente hidráulica y la transmisión híbrida hidráulico-neumática.
El tipo totalmente hidráulico ofrece mayor precisión y mayor estabilidad, lo que lo convierte en el modelo de gama alta más habitual. Ambos modos permiten trabajar en diversas condiciones, como impacto ligero en un solo punto, impacto fuerte, impacto programado continuo y mantenimiento de la presión del martillo en suspensión. Todo el proceso se caracteriza por una potencia hidráulica sin pérdidas, una respuesta rápida al impacto y un error de energía de impacto controlable dentro de un margen de 2%, lo que evita por completo las desviaciones de conformado causadas por las fluctuaciones de la presión de aire en los martillos neumáticos, satisfaciendo así las necesidades de producción de piezas forjadas de alta precisión.
After the equipment starts, the motor drives the high-pressure oil pump to continuously output hydraulic oil, storing the high-pressure oil inside the accumulator to form a stable high-pressure power source. The lower chamber of the working cylinder piston is continuously connected to high-pressure oil, creating a constant support pressure. When the control system issues a forging command, the precision follow-up valve and impact valve quickly switch the upper chamber oil circuit, rapidly depressurizing the upper chamber and creating a significant pressure difference between the upper and lower chambers. This, combined with the hammer’s own weight, creates a differential pressure boosting effect, driving the hammer to descend rapidly and applying a high-intensity, highly uniform impact load to the high-temperature metal billet, completing precise plastic deformation. After forging, the oil circuit reverses, high-pressure oil is introduced into the upper chamber, while the lower chamber maintains pressure, synergistically propelling the hammer to a rapid and smooth return to its original position, entering standby mode.
El principio de funcionamiento de un martillo de forja hidráulico-neumático es ligeramente diferente. La cámara sin vástago del cilindro de trabajo almacena una cantidad fija de gas comprimido. Cuando el aceite hidráulico entra en la cámara del vástago, comprime el gas, elevando el martillo para almacenar energía. Una vez liberado el aceite, el gas se expande y, junto con su propio peso, completa el impacto.
Choose based on the applicable scenario. Fully hydraulic forging hammers utilize hydraulic oil transmission throughout the entire process, making them suitable for high-value-added, high-precision forgings in aerospace, military, and automotive precision parts production. They are the first choice for scenarios with stringent requirements for product consistency and yield. However, their equipment cost is relatively higher.
Hydropneumatic forging hammers use a hybrid oil-air energy storage system, offering excellent cost-effectiveness. However, their precision is slightly inferior to fully hydraulic models. They are suitable for large-scale mass production scenarios with moderate precision requirements and a focus on heavy-duty forging, such as heavy machinery, ordinary automotive parts, and large blanks.
Hydraulic forging hammers are the optimal equipment for forging special hard metals such as titanium alloys, high-temperature alloys, and high-strength alloy steels. These special metals have high hardness, poor plasticity, and require stringent forging processes. Ordinary pneumatic hammers lack sufficient power and produce uneven impact, easily leading to problems such as workpiece cracking, loose internal structure, and forming defects. Hydraulic forging hammers possess high-pressure differential boosting characteristics, resulting in large striking force and controllable impact flexibility. By precisely adjusting the striking energy, stroke, and frequency, slow and uniform shaping can be achieved, gradually releasing internal stress in the metal and avoiding stress concentration cracking. Simultaneously, stable hydraulic power ensures a dense and uniform internal metallographic structure in the forging, perfectly meeting the forging process requirements of special metals. They are widely used in the precision forging of aerospace special components.
Hydraulic forging hammers have significant overall energy-saving advantages, with comprehensive energy consumption 25%-35% lower than that of pneumatic air hammers under the same tonnage conditions.
Firstly, they have higher energy utilization. The hydraulic energy storage system releases energy on demand and performs work instantaneously. The energy utilization rate is over 85%, which is far exceeding the approximately 60% utilization rate of pneumatic hammers.
Secondly, its standby power consumption is extremely low. In standby mode, the hydraulic hammer only maintains stable system pressure, requiring no continuous power output.
Finally, it offers energy efficiency adaptability to various operating conditions. The hydraulic hammer precisely controls pressure and adjusts striking force as needed, avoiding high-energy-consuming dry-working and over-forging waste. Simultaneously, the equipment has a low failure rate and minimal wear, reducing hidden energy losses from downtime and rework of defective products, resulting in significant energy savings in long-term mass production.
Under proper operation and regular maintenance, the hydraulic forging hammers sold by our company can last 15-20 years. The cast steel body and main structure are virtually durable, requiring only periodic replacement of easily worn parts such as seals and valve assemblies.
Compared to pneumatic air hammers, hydraulic forging hammers have lower operating noise and less vibration. Under normal operating conditions, the noise level is controlled at 70-80 decibels. The noise level of the impact-type model can be as low as below 70 decibels, meeting industrial environmental protection standards.