Applications of Bow-Type Hydraulic Presses/C-Type Press-Fitting Machines in Hardware and Home Appliance Manufacturing

In the hardware and home appliance manufacturing industry, bow-type hydraulic presses/C-type press-fitting machines (also known as single-column/bow-type hydraulic presses or pneumatic-hydraulic booster press-fitting machines) are extremely common equipment. Their biggest difference from four-column presses lies in their three-sided open structure. This structure determines its extremely high efficiency and good operating visibility when processing bushing press-fitting, flanging, and riveting of small and medium-sized parts. Its application logic can be broken down into the following three scenarios, as shared by Jianlong Hydraulic Technology:

1. Bushing Press-Fitting of Small Home Appliance Motors and Transmission Systems

This is the most intensive application area for bow-type hydraulic presses/C-type press-fitting machines, such as vacuum cleaners, blenders, fans, and mixers.

1.1 Application Points: Pressing oil-impregnated bearings into motor housings, or pressing force transmission shafts into gearboxes.

1.2 Functional Logic: These parts are typically small in size and produced in large quantities. The opening (throat depth) of a bow-type hydraulic press/C-type press-fitting machine does not need to be large, but high speed is required.

1.3 Advantages: Bow-type hydraulic presses/C-type press-fitting machines, using pneumatic-hydraulic booster or small servo hydraulic drives, are 30%-50% faster than traditional hydraulic presses and more stable than pneumatic presses. The operator places the workpiece with both hands, steps on the switch, and the press head presses down in a straight line, effectively preventing bearing misalignment and not occupying space on either side of the production line.

2. Precision punching and shaping of hardware parts The hardware industry has many parts with holes or protrusions, such as hinges, door handles, and lock panels.

2.1 Applications: Shaping hinges after rolling, flattening the edges of stainless steel sinks, and punching and flanging lock cases.

2.2 Operating Logic: Four-column presses apply force from all sides, but many hardware parts are long and thin or irregularly shaped.

2.3 Advantages: Bow-type hydraulic presses/C-type presses allow for unobstructed loading and unloading from the front and sides. For example, in hinge manufacturing, long, strip-shaped workpieces can pass directly through the machine body or slide out from the side after pressing, eliminating the need to lift the workpiece off the worktable as with four-column presses. This is significant for assembly line operations.

3. Rigid Extrusion and Micro-forming of Appliance Housings: Appliance housings increasingly demand thin sheets with high rigidity. Imprinting reinforcing ribs is cheaper than welding.

3.1 Applications: Microwave oven door frame edging, oven control panel logo imprinting, and air conditioner sheet metal stamping.

3.2 Operational Logic: This is not deep drawing, but localized extrusion.

3.3 Advantages: The bow-shaped structure offers excellent rigidity and strong resistance to eccentric loads. Many home appliance casings have folded edges that cannot be placed flat in the center of a four-column press. However, bow-type hydraulic presses/C-type presses allow the workpiece to be partially suspended in the air, with the press head specifically designed for localized precision pressing or correction of the raised edge.

In summary, in the home appliance and hardware industry, the bow-type hydraulic press/C-type press machine acts as a "flexible, rapid-response unit." It's not used for pressing heavy, large molds (that's the job of a four-column press), but rather specifically to solve the problems of bearing assembly and hardware shaping where "precision requirements are not extremely high, but the quantity is enormous and the shapes are irregular." It's a relatively mature solution for rapid mold changes on assembly lines and for single-person, single-machine operation. For more information/advice on bow-type hydraulic presses/C-type press machines, or to purchase other high-quality hydraulic presses, please contact us (or scan the WhatsApp QR code below). Jianlong Hydraulic Technology will provide you with personalized, customized professional solutions and is dedicated to serving you.