Lead Acid Battery Bushings & Terminals

The "bushing" of a lead-acid battery typically refers to the terminals of the battery (also named positive/negative terminal post), used to connect the battery's electrodes to external devices. These terminals are usually made of metal for conducting electricity and require good sealing to prevent electrolyte leakage. In lead-acid batteries, the bushing also plays a role in stabilizing the electrode plates and connecting the wires. Therefore, for lead-acid batteries, the design and quality of the bushing are crucial for the battery's performance and lifespan.

Battery Lead alloy Bushings types:

The lead acid battery's lead bushings are the crucial component for connecting the positive and negative plates. Crafted predominantly from pure lead and 3-5%antimony, it facilitates the flow of current within the battery. As per different manufacturing methods, lead acid battery Negative/Positive poles/bushings can be classified:

• Gravity casting cold forming lead-acid battery bushings

Cold forming bushings or cold forged bushings manufacturing process uses gravity lead alloy parts casting machine and mold to produce gravity bushings parts. Then use a heavy stamping machine and mold to press rough gravity bushing to precision sized parts. Then use the NC turning and rolling machining method to cut flash and get a finished bright battery bushing.

Gravity casting battery bushings can be used directly. The gravity casting battery bushing and cold formed bushings photo shows:

The gravity casting lead-acid battery bushing manufacturing process:

Our top-quality cold-forming lead bushing offers outstanding conductivity and robust corrosion resistance. 

1. Lead parts gravity casting machine with molds to cast lead alloy bushings as per design. (after this process, we can get a gravity cast bushing. Most battery factories use this bushing directly for plastic injection to produce lead acid battery container covers.) 

This gravity bushing features no-airholes, most battery factories use this bushing with plastic injection to produce battery cover directly. 

If you are looking for gravity battery bushings, please email us: cnkylt@aliyun.com

2. As improved bushings, we provide cold forming (cold forged) bushings as per customers' demand. The bushings are made by high pressure and lathing machining, the finished parts with high precision, high density, and no air holes. Undercut labyrinth structure (arrowhead rings) can be done.

Now, we provide 3typs cold forged battery bushings:

Basic Information of lead-acid battery cold forged/formed bushings:

• Standard Cold formed bushings:

BATTERY BUSHING 1: Positive+Negative= one pair

Detail PDF drawing download:  cold forming battery bushing 1.pdf

BATTERY BUSHING 2: Positive and Negative are the same

Detail PDF drawing download:cold forming battery bushing 2.pdf

These cold-forged lead acid battery bushings feature no air holes, high precision, and a bright surface. They have specially treated arrowhead structure rings to avoid the escape of acid and gases. 

If you are looking for gravity battery bushings, please email us: cnkylt@aliyun.com

Feel free to request complimentary samples for burning test purposes. Service email: cnkylt@aliyun.com

• Die-casting lead-acid battery bushings & terminals

Vacuum die casting lead acid battery bushing and terminal show:

Vacuum die casting battery bushing and terminal 1

Vacuum die casting battery bushing and terminal 2

More information of lead acid battery Gravity casting bushings, Cold forming bushings or vacuum die casting terminal & bushings. Please email us: cnkylt@aliyun.com