JH21 Series Open Back Press – High-Efficiency Metal Forming Machine

The JH21 Series Open Back Press is a high-performance stamping machine engineered for industrial metal forming. Built with a wet clutch system, hydraulic overload protection, and precision alignment mechanisms, it ensures operational stability, safety, and long-term durability. This press is widely used in automotive, electrical, heavy-duty sheet metal, and industrial manufacturing industries, where accuracy and efficiency are critical.

Key Features of JH21 Series Open Back Press

1. Wet Clutch System for Smooth Operation

The JH21 Series adopts a modular wet clutch and brake system that ensures smooth engagement during operation. Unlike traditional dry clutches, the wet clutch reduces friction and heat generation, thereby extending the service life of mechanical components. This design minimizes shock loads during stamping, allowing operators to achieve precise and consistent forming results.

2. Hydraulic Overload Protector for Safety

Equipped with a hydraulic overload protector, the machine prevents structural damage in the event of unexpected overloads. This feature not only safeguards the press itself but also protects tooling and workpieces, reducing production downtime and repair costs.

3. Robust Steel Frame with Open Back Design

Constructed from high-strength steel with anti-corrosion finishing, the press delivers excellent rigidity and stabilityunder heavy-duty operations. The open back frame design allows operators to handle large or irregularly shaped workpieces with ease, while also improving visibility and accessibility for frequent inspections and die adjustments.

4. Adjustable Stroke Mechanism

The adjustable stroke system provides flexibility for various stamping applications, enabling operators to fine-tune the press according to different material thicknesses and forming depths. This adaptability improves production efficiency and reduces material waste.

5. Simplified Maintenance

The modular wet clutch assembly and easily accessible hydraulic components allow for quick routine checks and oil replacement, minimizing downtime. The design ensures that maintenance can be performed without the need for complex disassembly.

6. Advanced Safety Features

Safety is a core consideration in the JH21 design. In addition to the hydraulic overload protector, the machine is equipped with emergency stop functions and mechanical safeguards, significantly reducing operator risks during continuous or high-load production.

Applications of JH21 Series Open Back Press

The versatility of the JH21 Series makes it suitable for a wide range of industries and applications, including:

• Automotive Component Manufacturing – stamping and forming engine parts, brackets, and structural components.

• Electrical Enclosure Fabrication – producing precise and durable switchgear housings and cabinets.

• Heavy-Duty Sheet Metal Punching – handling thick sheets and industrial-grade materials with efficiency.

• General Industrial Manufacturing – suitable for forming, punching, and precision stamping operations requiring consistent alignment and safety.

People Also Ask (FAQ)

1. How does the wet clutch in the JH21 Series Open Back Press improve machine lifespan?

The wet clutch operates with a lubricated engagement system, which reduces heat buildup and friction compared to dry clutches. This significantly minimizes wear on moving parts, leading to longer service life, reduced maintenance costs, and smoother stamping performance even during high-speed production.

2. Can the hydraulic overload protector be adjusted for different metal thicknesses?

Yes. The hydraulic overload protector is designed with adjustable pressure settings, allowing operators to calibrate it according to the workpiece thickness and forming requirements. This ensures maximum protection without compromising production efficiency.

3. What types of metals can be processed safely with the JH21 Open Back Press?

The JH21 Series can handle a wide variety of metals, including high-strength steel, stainless steel, aluminum alloys, copper, and galvanized sheet metal. Its adjustable stroke and robust frame make it suitable for both light-duty and heavy-duty applications across different industries.

4. How does the open back design enhance visibility and operator efficiency?

The open back frame improves operator access and visibility to the workpiece and tooling area. This makes it easier to load large or irregular sheets, monitor alignment, and perform frequent die adjustments. The design ultimately improves operator efficiency, accuracy, and production speed.

5. What routine maintenance is recommended for the wet clutch and hydraulic system?

Routine maintenance includes checking oil levels, replacing hydraulic fluid periodically, inspecting clutch plates, and ensuring that seals and hoses remain intact. Thanks to the modular design, these tasks can be completed quickly, reducing downtime and keeping the machine in optimal working condition.

The JH21 Series Open Back Press combines high-strength construction, advanced safety features, and precision control to deliver outstanding performance in metal forming applications. With its wet clutch system, hydraulic overload protection, and open back design, it is the ideal choice for manufacturers seeking efficiency, reliability, and long service life in demanding production environments.

Looking for a reliable JH21 Series Open Back Press? Contact us today to explore our extensive range of Precision Lathe Reliable Pergormance and find the perfect solution for your production needs.

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