A Brief Description of the Structure and Working Process of a Multi-directional Forging Hydraulic Press for Bicycle Seatposts and Hubs

The essence of a multi-directional forging hydraulic press is a multi-axis (usually 3-axis or more) synchronously controlled hydraulic system that works collaboratively around a precision mold. Below, Jianlong Hydraulic Technology will share information using a three-directional forging hydraulic press as an example for your reference!

1. Typical Structure (Three-directional as an example)

1.1 Main Vertical Cylinder (Up/Down Direction): Provides the main clamping force and axial pressing force. The upper crossbeam is usually movable.

1.2 Lateral Horizontal Cylinders (Left/Right Direction): Apply pressure from one or two horizontal directions for forming features such as spoke hole seats and lateral bosses.

1.3 Auxiliary Vertical Cylinders or Mandrel Cylinders (Center Direction): Push upwards from the bottom or inside of the mold, or drive the central mandrel to form complex internal cavities.

1.4 Precision Mold System: The core of the core. Usually composed of multiple mold cores, which open, close, and combine under the drive of multiple cylinders to form complex forming cavities. The mold design is extremely complex and expensive.

1.5 Multi-layer frame: An exceptionally robust prestressed frame to withstand enormous asymmetrical forces from multiple directions, ensuring precision.

1.6 Advanced control system: Employing multi-channel servo hydraulics and PLC/CNC control, precisely coordinating the pressure, position, speed, and timing of each cylinder, ensuring repeatability and precision of the molding process.

2. Main workflow (taking a carbon fiber wheel hub as an example)

2.1 Material laying: Placing pre-cut carbon fiber prepreg or preforms into the lower mold cavity.

2.2 Mold closing: The main vertical cylinder drives the upper mold downwards, initially closing the mold.

2.3 Multi-directional (three-directional) pressurization:

◦ Horizontal cylinders push the lateral mold cores in, extruding and forming the spoke hole seats and side contours.

◦ The center mandrel may move simultaneously to ensure the size and shape of the hub's center hole.

◦ Pressure in all directions is maintained at high temperature (if curing) for a certain period of time.

2.4 Mold Opening: Each hydraulic cylinder retracts in a precise sequence, and the mold opens.

2.5 Part Removal: The formed integrated wheel hub blank is removed for subsequent cleaning and painting.

The multi-directional forging hydraulic press for bicycle seatposts and wheel hubs is a high-end piece of equipment that applies advanced manufacturing technology to the bicycle industry. Through multi-axis synchronous precision pressurization, it achieves near-net-shape forming of high-performance composite materials or metal parts, making it a key tool for producing top-tier bicycle parts and overcoming performance bottlenecks. Its value lies not only in the equipment itself but also in the entire knowledge system encompassing mold technology, material processing, and process control. For more information/advice on multi-directional forging hydraulic presses for bicycle seatposts and wheel hubs, 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 and customized professional solutions and is dedicated to serving you.