The A50A100BX150 automatic feeder for stamping machines is a pneumatic feeding device specifically developed for medium-to-high-speed stamping production lines. It is also known in the industry as a pneumatic feeder or pneumatic paper feeder. The device uses compressed air as its power source and, through a combination of precision cylinders and solenoid valves, achieves automatic clamping, step-by-step feeding, and rapid return of coil materials or sheet materials. It is particularly suitable for precision stamping production applications such as electronic hardware, automotive parts, and metal components for home appliances, which require continuous punching, shearing, and forming. Compared to traditional manual feeding or mechanical cam feeding, the pneumatic feeder has a compact structure, smooth operation, and can significantly enhance automation levels and reduce overall production costs.
This series encompasses multiple models such as A, B, C, BX, CX, and DX, capable of processing various metal materials ranging from thin plates to medium-thick plates. The conventional applicable thickness is 0.3–3.0mm, with a maximum feeding width of up to 250mm and a continuously adjustable feeding length of 50–250mm, meeting the production needs of multi-station and multi-step mold applications. Through the coordination of precision throttle valves and positioning mechanisms, the equipment maintains a feeding accuracy of ±0.05mm even in continuous stamping mode, ensuring that the hole spacing, forming position, and mold dimensions are highly consistent, effectively reducing burrs, scratches, and scrap production.
The pneumatic feeder adopts a high-strength alloy steel guide rail and wear-resistant slider structure, coupled with precision-ground bearings and surface hardening treatment, capable of withstanding long-term high-speed reciprocating motion without losing stability. The fixed clamping device provides a clamping force of approximately 64–70kg, while the movable clamp can provide a dynamic clamping force of approximately 120–158kg, ensuring that the sheet material will not slip or shift under high-speed feeding and frequent start-stop conditions. The tensile range is approximately 25–41kg, suitable for most punching machine feeding requirements. The overall weight of the machine is approximately 4.3–16.1kg, with a lightweight design that facilitates installation on the side of the mold or above the punching machine table, occupying no operating space and facilitating future maintenance.
In terms of power and energy consumption, the equipment operates solely on 0.5–0.8MPa compressed air without the need for an additional motor. The air consumption rate is approximately 37–115L/min, depending on the specific model. The maximum feeding frequency can reach up to 400 times per minute, allowing it to operate synchronously with high-speed punching machines, printing presses, and other equipment. The accompanying safety solenoid valve, throttle valve, and air source treatment triple piece enable pressure regulation, overload protection, and emergency shutdown, ensuring that the equipment maintains good safety and stability even under high-frequency operating conditions.
The A50A100BX150 pneumatic feeder supports multiple installation methods on the side or top, and can be combined with a leveling machine and an uncoiler to form an “integrated automatic uncoiling, leveling, and feeding line”. It can also be used independently for multi-station feeding within a mold. The equipment comes standard with solenoid valve interfaces and limit signal interfaces, allowing for easy linkage with punch cam or PLC control systems to achieve functions such as automatic feeding, automatic counting, and abnormal shutdown. Regular checks on the air source filter and guide rail lubrication are sufficient to maintain stable operation over the long term, with minimal maintenance workload.
Overall, this model of pneumatic feeder combines characteristics such as high precision, high speed, low noise, and high reliability, making it particularly suitable for continuous stamping production of metal coil or sheet materials with a step pitch of 50–250mm and a thickness of 0.3–3.0mm. Whether it is for the establishment of a new automated stamping line or the automation retrofitting of an old punch press, selecting the A50A100BX150 series pneumatic feeder can bring significant benefits in terms of reducing labor, improving takt time, reducing material loss, and enhancing product consistency. It is an ideal solution for upgrading automatic feeding systems for small and medium-tonnage punch presses.
