In the realm of stamping production lines, three primary feeding devices reign supreme: air feeders, roller feeders, and servo feeders. While each has its merits, servo feeders stand out as a superior choice, particularly when compared to roller feeders. Let’s delve into why servo feeders have become the go-to feeding equipment in stamping production lines.

Enhanced Usage Scope

Roller feeders, reliant on the eccentric disk mounted on the press’s automatic feeding shaft, possess constraints concerning feeding dimensions. Typically, roller feeders accommodate widths within 400mm, thicknesses below 3.5mm, and lengths below 300mm. Moreover, they necessitate power from the press. Conversely, servo feeders, driven by independent servo motor systems, offer a broader range of feeding dimensions. These versatile devices can be tailored to meet customer specifications, accommodating widths up to 1600mm, thicknesses up to 6.00mm, and feeding lengths up to 9999.99mm.

Superior Feeding Accuracy

While roller feeders typically achieve a feeding accuracy of ±0.05mm, servo feeders employ NC servo motors to synchronize with the press via encoder signals. Each axis is meticulously driven by precision ball screws, resulting in impeccable positioning accuracy and stability. Generally, servo feeders boast a feeding accuracy of ±0.02mm, which can further improve to ±0.01mm for short-distance feeding operations.

Multi-Stage Feeding Capabilities

Unlike roller feeders, which are limited to fixed-step feeding, servo feeders offer multi-stage feeding functionalities. They can accommodate 20 sets of diverse feeding lengths, each set applicable for 0-999 stamping cycles. This feature proves invaluable for the stamping of specialized products.

User-Friendly Operation

Adjusting the feeding step distance of roller feeders demands intricate adjustments to the reference ruler and scale ring on the eccentric disk, requiring extensive training and time. Conversely, servo feeders streamline the process. All feeding parameters can be effortlessly input, modified, and adjusted via the user-friendly human-machine interface on the control cabinet.

Material Conservation

Servo feeders present an innovative solution for stamping round profile materials. By equipping them with ball screws and linear guides, they can transform into left-right swinging servo feeders, facilitating substantial material savings—an advantage beyond the reach of roller feeders.

Compatibility with In-Die Tapping Machines

As in-die tapping machines gain prominence in stamping automation, compatibility becomes paramount. Servo feeders excel in this aspect, offering adjustable feeding angles ranging from 330º to 30º to suit any in-die tapping machine’s requirements. In contrast, roller feeders, with fixed feeding angles of 270º to 90º, pose compatibility challenges and limitations, particularly regarding press stroke length.

In conclusion, while roller feeders have served their purpose, servo feeders emerge as the pinnacle of feeding equipment in stamping production lines, offering unparalleled versatility, precision, and efficiency. Their myriad advantages make them indispensable assets in modern stamping operations.

Servo Feeder
Servo Feeder