AL 688 leaf chains for forklifts and material handling

Introducing the AL Series Leaf Chains

The AL Series leaf chains are a product of ANSI leaf chain specification dimensions. As the first series of ANSI leaf chains, they are still in high demand today, thanks to their high-strength, space-saving design. Ideal for lifting applications, these chains are designed for modern-day lighter duty tasks.

Superior Features of the AL Series Leaf Chains

Our selection of leaf chains stands out for its high-strength hardened pins, heat-treated plates, and shot-peened components. These chains are factory pre-stressed to reduce initial install stretching. They are typically available in 10ft boxes, 50ft reels, and 100ft reels, but we also supply cut-to-length and custom leaf chains.

Technical Specifications

Chain Size	Lacing	Pitch (P)	Min. Tensile Strength	Weight (Per Ft)	Pin Diameter (D)	Pin Length (L)	Plate Height	Plate Thickness (T)
AL322	2X2	0.375"	2,045 lbs	0.2 lbs	0.141"	0.27"	0.30"	0.051"
AL344	4X4	0.375"	4,090 lbs	0.3 lbs	0.141"	0.46"	0.30"	0.051"
AL422	2X2	0.500"	3,205 lbs	0.3 lbs	0.156"	0.33"	0.41"	0.059"
AL444	4X4	0.500"	6,409 lbs	0.5 lbs	0.156"	0.57"	0.41"	0.059"
AL466	6X6	0.500"	9,614 lbs	0.8 lbs	0.156"	0.81"	0.41"	0.059"
AL522	2X2	0.625"	5,000 lbs	0.4 lbs	0.200"	0.44"	0.50"	0.080"
AL534	3X4	0.625"	7,500 lbs	0.7 lbs	0.200"	0.67"	0.50"	0.080"
AL544	4X4	0.625"	10,000 lbs	0.8 lbs	0.200"	0.76"	0.50"	0.080"
AL566	6X6	0.625"	15,000 lbs	1.2 lbs	0.200"	1.08"	0.50"	0.080"
AL622	2X2	0.750"	8,409 lbs	0.6 lbs	0.234"	0.51"	0.61"	0.095"
AL644	4X4	0.750"	14,450 lbs	1.2 lbs	0.234"	0.89"	0.61"	0.095"
AL666	6X6	0.750"	22,750 lbs	1.8 lbs	0.234"	1.27"	0.61"	0.095"
AL688	8X8	0.750"	30,317 lbs	2.4 lbs	0.234"	1.66"	0.61"	0.095"
AL822	2X2	1.000"	12,886 lbs	1.0 lbs	0.312"	0.63"	0.81"	0.128"
AL844	4X4	1.000"	25,773 lbs	2.0 lbs	0.312"	1.16"	0.81"	0.128"
AL866	6X6	1.000"	38,636 lbs	3.0 lbs	0.312"	1.74"	0.81"	0.128"
AL1022	2X2	1.250"	20,114 lbs	1.6 lbs	0.375"	0.77"	1.01"	0.157"
AL1044	4X4	1.250"	40,227 lbs	3.1 lbs	0.375"	1.43"	1.01"	0.157"
AL1066	6X6	1.250"	60,227 lbs	4.8 lbs	0.375"	2.06"	1.01"	0.157"
AL1088	8X8	1.250"	80,454 lbs	6.7 lbs	0.375"	2.70"	1.01"	0.157"
AL1222	2X2	1.500"	28,864 lbs	2.5 lbs	0.437"	0.96"	1.20"	0.189"
AL1244	4X4	1.500"	57,727 lbs	4.7 lbs	0.437"	1.72"	1.20"	0.189"
AL1266	6X6	1.500"	86,591 lbs	7.1 lbs	0.437"	2.49"	1.20"	0.189"
AL1288	8X8	1.500"	115,450 lbs	9.4 lbs	0.437"	3.25"	1.20"	0.189"
AL1444	4X4	1.750"	84,705 lbs	7.0 lbs	0.498"	2.02"	1.43"	0.220"
AL1466	6X6	1.750"	127,045 lbs	10.2 lbs	0.498"	2.94"	1.43"	0.220"
AL1644	4X4	2.000"	107,045 lbs	8.7 lbs	0.559"	2.28"	1.64"	0.252"
AL1666	6X6	2.000"	160,454 lbs	13.3 lbs	0.559"	3.30"	1.64"	0.252"
AL1688	8X8	2.000"	214,090 lbs	17.1 lbs	0.559"	4.31"	1.64"	0.252"

Key Benefits & Applications

Some of the key benefits of the AL Series Leaf Chains include their lightweight nature, high strength, corrosion resistance, excellent conductivity and thermal conductivity, easy maintenance, and compact design. These chains are ideal for a range of applications such as forklifts and other material handling equipment.

The manufacturing process of the AL series leaf chain usually includes the following links:

1. Raw material preparation: This link involves purchasing and storing raw materials, such as aluminum ingots, steel or stainless steel, etc. The quality of raw materials directly affects the performance of the final product, so quality control of raw materials is crucial.2. Smelting and casting: Smelting is heating raw materials to a molten state to form molten aluminum. Casting involves pouring molten aluminum into a mold and cooling it to form a preliminary casting. This link is the basis for manufacturing the AL Leaf chain, ensuring the basic shape and size of the product.3. Heat treatment: The heat treatment link is to heat or cool the preliminary casting to change its internal structure and performance. Heat treatment can improve the strength, hardness, wear resistance, corrosion resistance, and other properties of the material, laying a solid foundation for subsequent processing.4. Cutting and bending: Cutting is to cut the preliminary castings after casting according to the required specifications so that they can meet the requirements of subsequent processing. Bending is the bending process of castings to form the desired shape and angle. This link is a key step in manufacturing the AL Leaf chain, and it is necessary to ensure that the size and shape of each link meet the requirements.5. Surface treatment: The surface treatment process involves painting, spraying, electroplating and other treatments on the product to improve the aesthetics and corrosion resistance of the product. This link has a greater impact on the quality and appearance of the product and requires strict quality control.6. Assembly and inspection: Assembly is to assemble the processed chain links and other accessories to form a complete AL Leaf chain. Inspection is the quality inspection of assembled products to ensure that their performance and appearance meet requirements. This link is the last step in manufacturing the AL Leaf chain and is also an important link in quality control.

Materials used in AL series leaf chain manufacturing

The materials used to manufacture AL series leaf chains may vary depending on the specific requirements of the application and the performance required of the chain. But generally speaking, AL series leaf chains are made of high-quality aluminum alloy.Commonly used materials for manufacturing AL series leaf chains include:1. Aluminum alloy: Aluminum alloy has good strength, and corrosion resistance, and light weight. Commonly used alloys for AL series plate chains include 6061, 6063, and other aluminum alloys, which have good formability and corrosion resistance.2. Heat-Treated Aluminum: In some cases, aluminum alloys may be heat-treated to enhance specific properties, such as tensile strength and fatigue resistance. Heat treatment can involve heating and cooling the alloy under controlled conditions to achieve the desired microstructure and properties.3. Connectors and fasteners in steel or stainless steel: Connectors and fasteners in AL series leaf chains are usually in steel or stainless steel. These components provide additional strength and durability to the chain assembly and allow it to be connected to other components or structures.4. Painted or Corrosion-Resistant Coating: AL Series leaf chains can be painted or coated with a corrosion-resistant coating to enhance their durability and provide additional protection against corrosion. Paint or coating can be applied before or after chain assembly.

About Raydafon

Raydafon is a leading name in the Chinese Leaf chain market. Our products include the AL Series Leaf Chain, BL series leaf chain, agricultural chain, conveyor chain, drive chain, and more. We utilize state-of-the-art automatic CNC production equipment and automatic assembly equipment.We pride ourselves on our high-quality products, affordable prices, and excellent customer service. We welcome custom orders based on your specifications.