动力传动（滚子链、链轮、齿条、皮带轮、锥套）制造及解决方案

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A550/A555/A557/A620 | A-type Steel Agricultural Chains

A-type Agricultural Chain

The A series agricultural chains—A550, A555, A557, and A620—are heavy-duty agricultural roller chains crafted from hardened or alloy steel. Built for reliability and endurance, our A Series chains offer exceptional strength and long service life. Made of high-grade heat-treated steel and precision-machined components, they are corrosion-resistant and OEM-compatible. Available with custom attachments to meet conveyor systems, corn heads, forage harvesters, manure spreaders, balers, and other machinery.

✔ Rust & Wear Resistance

✔ Attachment Available

✔ High-load Capacity

A-type Roller Chain Size

CTS® Chain No.	Pitch	Roller diameter	Width between inner plates	Pin diameter	Pin length		Plate dimension		Tensile strength	Average tensile strength	Weight per meter
	P	d1	b1 min	d2 max	L max	Lc max	h2 max	T max	Q min	Q0	q
	mm	mm	mm	mm	mm	mm	mm	mm	kN/lbf	kN	kg/m
A550	41.40	16.87	19.81	7.19	35.0	38.0	19.3	2.80	39.10/8886	51.2	1.79
A555	41.40	16.87	12.70	7.19	29.1	32.0	19.3	3.10	39.10/8886	56.0	1.60
A557	41.40	17.78	20.24	8.00	37.4	40.6	23.1	3.10	55.61/12639	74.3	2.45
A620	42.01	17.91	24.51	7.19	41.8	45.2	20.2	3.25	39.10/8886	55.1	2.18

Interested in A-type Chains for your equipment?

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Bulk Orders & Custom Solutions

We supply to OEMs, distributors, and farms worldwide. Whether you need 500 feet or 5,000 feet, our production lines can handle urgent and large-scale orders.

Contact us for custom designs or special material requests.