n the high-stakes world of mining, conveyor chains are the lifeblood of operations. Their reliability is critical, and a single point of failure can lead to expensive downtime and lost productivity. While the Cincinnati Mine Machinery Co. DA-550 conveyor chain is a well-known name, we offer a superior, high-performance alternative designed to not only meet but also exceed the demands of modern mining applications. Our products guarantee an extended service life, reduced maintenance, and enhanced operational efficiency.We are a global leader in the manufacturing of heavy-duty mining chains, specializing in providing robust conveyor solutions for both surface and underground operations. With decades of industry experience and a relentless commitment to excellence, we can offer a product that isn't just a simple replacement for the Cincinnati DA-550—it's a significant upgrade.| Cincinnati Model No. | Width (Inches) | Our Replacement Model | Scraper Width (Inches) |
| DA-550, DA-5502 | 27−1/2 | DA642A | 27−1/2 (698.5 mm) |
| DA-5502-A, DA-550-A | 36−1/8 | DA719A | 36.28 (921.5 mm) |
| DA-550-E, DA-5502-E | 23 | DA622A | 29 (737 mm) |
| DA-550-H | 30−1/2 | DA646B | 29.13 (740 mm) |
| DA-550-K | 22 | DA711B | 22−1/2 (572 mm) |
| DA-550-L, DA-5502-L, DA-5502-LX | 33−1/2 | DA719A | 36.28 (921.5 mm) |
| DA-5502-CX | 28 | DA711A | 28 (711 mm) |

| DA642 CONVEYOR CHAIN SELECTION CHART | |||||
| DA642A | Chain Unit Length is 11 Inch (279.5mm)(one Flight Section and one outer link) | WIDTH: 27 1/2 INCH(698.5mm) | |||
| Secondary Component | |||||
| DA642A01Flight Section | DA642A02Outer Link | ||||
| Tertiary Component | |||||
| DA642A002Outer Plate | DA642A003Irregular Hole Inner Link | DA642A004Scraper | DA642A005Pin | DA642A006Scraper Pin | DA622B007T-pin |
| Note : DA chain products are suitable for continuous miners, borer miners, road headers (mining/tunnelling). DA chains pitch range is from 2 5/8 inches to 3 1/4inches, product data sheet other than those listed are available upon request. | |||||

| DA711 & DA719 CONVEYOR CHAIN SELECTION CHART | |||||||
| DA711A | Chain Unit Length is 13 Inch (330.2mm) (one Flight Section and one outer link) | WIDTH: 28 INCH (711mm) | |||||
| DA719A | WIDTH: 36.28 INCH (921.5mm) | ||||||
| Secondary Component | |||||||
| DA711A02/ DA719A02Flight Section | DA711A03Outer Link | DA 711A01Cross-shaped Link | |||||
| Tertiary Component | |||||||
| DA711A001Single Lug ForkEnd | DA711A002Slotted TongueEnd | DA711A003Cross Pin | DA711A004Outer Plate | DA711A005 DA719A005Scraper | DA711A007Pin | DA711A008Scraper Pin | DA711A009cross pinjoint |
| Note : DA chain products are suitable for continuous miners, borer miners, road headers (mining/tunnelling). DA chains pitch range is from 2 5/8 inches to 3 1/4inches, product data sheet other than those listed are available upon request. | |||||||

| DA622 CONVEYOR CHAIN SELECTION CHART | ||||||
| DA622A | Chain Unit Length is 12 inches (304.78mm)(one Flight Section and one outer link) | 刮板宽度: 29英寸(737mm)WIDTH: 29 INCH(737mm) | ||||
| DA622B | Chain Unit Length is 18 inches (457mm)(one Flight Section, two Outer Links, and one Standard Inner Link) | |||||
| Secondary Component | ||||||
| DA622B01Flight Section | DA622B02Outer Link | |||||
| Tertiary Component | ||||||
| DA622B001Standard InnerLink | DA622B002Outer Plate | DA622B003Irregular HoleInner Link | DA622B004Scraper | DA622B005Pin | DA622B006Scraper Pin | DA622B007T-pin |
| Note: Raydafon’s DA chain products are suitable for continuous miners, borer miners, and road headers (mining/tunnelling). DA chains pitch range is from 2 5/8 inches to 3 1/4 inches. Product data sheets for other than those listed are available upon request. | ||||||

| DA646 CONVEYOR CHAIN SELECTION CHART | ||||||
| DA646A | Chain Unit Length is 11.97 inches (304mm)(one Flight Section and one outer link) | WIDTH:29.13 INCH(740mm) | ||||
| DA646B | Chain Unit Length is 17.95 inches (456mm)(one flight section, two outer Links, and one standard Inner Link) | |||||
| Secondary Component | ||||||
| DA646B01Flight Section | DA646B02Outer Link | |||||
| Tertiary Component | ||||||
| DA646B001Standard Inner Link | DA646B002Outer Plate | DA646B003Irregular HoleInner Link | DA646B004Scraper | DA646B005Pin | DA646B006Scraper Pin | DA622B007T-pin |
| Note: ANCHI’s DA chain products are suitable for continuous miners, borer miners, and road headers (mining/tunneling). DA chains pitch range is from 2 5/8 inches to 3 1/4inches. Product data sheets other than those listed are available upon request. | ||||||



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