The GP4 is a heavy-duty straight-side press, engineered to meet the most demanding requirements in the extra-large sheet metal stamping industry, such as automotive body parts. The machine body is welded from high-quality steel plates and subsequently annealed at high temperature to completely relieve internal stress, ensuring the machine's rigidity and precision remain stable. The core technology of the GP4 is its 4-point eccentric drive mechanism, which distributes the stamping force evenly across the entire large slide surface. This design almost completely eliminates the tilting moment caused by eccentric loads, providing absolute stability for extremely large and complex dies.

⚙️ ① 4-Point Eccentric Drive Mechanism

The drive system distributes force to four points on the slide via an eccentric gear system. This design creates an extremely uniform pressure area, almost completely eliminating the tilting moment caused by eccentric loads and providing absolute stability for very large dies. The system utilizes a two-level speed reduction gearset with herringbone gears for the high-speed stage, ensuring smooth, precise, and durable operation.

🧭 ② 8-Sided Slide Guiding Structure

The slide is guided by an extra-long 8-sided guiding system, with adjustable clearances to achieve the highest precision. A hydraulic overload protection device is integrated within the slide, ensuring absolute safety for the die and the press.

💨 ③ Advanced Air Cushion Technology

The machine is equipped with an adjustable single-chamber air cushion. The cushion has its own stroke adjustment mechanism and comes with a high-pressure air tank, which helps to minimize impact, reduce operating noise, and extend the equipment's lifespan. The air cushion can be combined with an optional lower knockout function to meet complex technological requirements.