Advanced Al322 Series Leaf Chains for Transmission

• Customization: Available
• Standard or Nonstandard: Standard
• Application: Textile Machinery, Garment Machinery, Conveyer Equipment, Packaging Machinery, Electric Cars, Motorcycle, Food Machinery, Marine, Mining Equipment, Agricultural Machinery, Car
• Model NO.: ISOAL344/AL422
• Surface Treatment: Polishing
• Structure: Leaf Chain
• Material: Alloy
• Type: Bush Chain
• Function: Moisture and Acid Against
• Color: Natural
• Certificate: ANSI/DIN/ISO
• Packaging: Industrial Packing or Customers′ Request
• Usage: Conveyor Chain, Driving Chain
• Feature: Corrosion Resistant
• Attachment: Can Be Customize
• Logo: Smcc
• Transport Package: Cartoon Box / Wooden Case
• Specification: Customer′s packaging requirements can be customize
• Trademark: SMCC or No Mark
• Origin: China
• HS Code: 7315119000
• Production Capacity: 5000000/Year
• Package Size: 50.00cm * 40.00cm * 30.00cm
• Package Gross Weight: 50.000kg

Product Description

 
          
 

JIS Chain No.	Pitch	Plate lacing	Plate depth	Plate thickness	Pin diameter	Pin length	Tensile strength	Average tensile strength	Weight per meter
	P		h2 max	T max	d2 max	L max	Q min	Q0	q
	mm		mm	mm	mm	mm	kN/lbf	kN	kg/m
AL322	9.525	2×2	7.7	1.30	3.58	6.80	9.0/2045	10.2	0.23
AL344		4×4				11.60	18.0/4090	20.0	0.46
AL422	12.700	2×2	10.4	1.50	3.96	8.30	14.7/3304	16.9	0.39
AL444		4×4				14.40	29.4/6609	35.2	0.74
AL466		6×6				20.50	44.0/9891	52.7	1.13
AL522	15.875	2×2 3×4 4×4 6×6	12.8	2.03	5.08	11.05	24.5/5508	28.6	0.64
AL534						17.00	36.8/8273	46.0	1.10
AL544						19.40	48.9/10993	62.4	1.25
AL566						27.50	73.4/16500	93.8	1.79
AL622	19.050	2×2	15.6	2.42	5.94	13.00	33.4/7508	44.4	0.87
AL644		4×4				22.70	66.7/14994	78.8	1.70
AL666		6×6				32.20	100.1/22502	118.6	2.53
AL688		8×8				42.20	133.4/29988	156.6	3.37
AL822	25.400	2×2 4×4 6×6 8×8	20.8	3.25	7.92	16.20	57.9/13016	68.6	1.57
AL844						29.40	115.7/26009	135.6	3.08
AL866						44.20	173.5/39003	202.3	4.62
AL888						55.50	231.4/52019	245.0	6.12
AL1022	31.750	2×2	25.6	4.00	9.53	19.60	84.5/18996	107.1	2.51
AL1044		4×4				36.40	169.0/37991	203.6	4.95
AL1066		6×6				52.30	253.5/56987	315.3	7.39
AL1088		8×8				68.50	338.0/75982	421.2	9.83
AL1222	38.100	2×2	30.5	4.80	11.10	24.30	120.1/26998	151.1	3.65
AL1244		4×4				43.80	240.2/53997	299.7	7.05
AL1266		6×6				63.20	360.3/80995	426.3	10.50
AL1288		8×8				82.60	480.4/107994	568.4	14.03
AL1444	44.450	4×4	36.4	5.60	12.70	51.30	302.5/68002	413.6	9.80
AL1466		6×6				74.50	453.7/101992	620.4	14.66
AL1644 AL1666 AL1688	50.800	4×4 6×6 8×8	41.6	6.40	14.21	58.00	382.5/85986	522.8	12.90
						83.80	573.8/128990	783.6	19.27
						109.50	765.0/171972	1045.5	25.64

        

Leaf chains are a special transmission and lifting chain, composed of multiple metal plates connected by pins. With a simple structure and high strength, they are mainly used for heavy-duty lifting, traction in vertical or inclined directions, and short-distance material conveying. They are widely applied in fields such as forklifts, cranes, lifting platforms, and engineering machinery. Their design focuses on bearing axial tensile loads rather than the continuous transmission function of traditional chains, thus performing excellently in heavy-load scenarios.

Performance Characteristics

Ultra-high Load-bearing Capacity

• High-strength alloy structural steels (such as 40Cr, 65Mn) are mostly used as materials. After quenching and tempering, the tensile strength can reach 800-1200 MPa, and the rated working load of a single chain can range from several tons to hundreds of tons (depending on specifications).
• The plates' superimposed design improves their overall strength by dispersing stress, making them suitable for heavy-load scenarios such as lifting forklift masts and telescoping crane booms.

Fatigue Resistance and Wear Resistance

• The surface of the plates is polished or phosphated to reduce frictional wear with guide grooves (such as forklift mast rails); the surface of the pins is usually chrome-plated or nitrided to enhance rust resistance and anti-seizure ability.
• The optimised ratio of plate thickness to pin diameter enables adaptation to frequent starts/stops or impact loads, extending the service life.

Compact Structure and Light Weight

• Leaf chains have no redundant components compared to roller chains or lifting chains. With the same load-bearing capacity, they are smaller in size and lighter in weight, saving installation space. They are especially suitable for scenarios sensitive to the weight of equipment (such as forklifts and lifting platforms).

Easy Maintenance

• The simple structure allows for easy disassembly and inspection; daily maintenance mainly involves regularly lubricating the contact parts between pins and plates to prevent rust and jamming, resulting in low maintenance costs.

COMPANY PROFILE

Qingdao Star Machine Technology Co., Ltd. is located in the beautiful coastal city of Qingdao. We are a large enterprise group engaged in researching, production, marketing, and technical services. We have three large research and production bases and one large marketing centre specialising in transmission parts, bearings, chains, sprockets, tractor driving axles, and hydraulic steering units. Covering an area of 80,000 square meters, we now have 816 employees, including 167 senior professional technicians, and a global network of sales and service systems. Maintaining good partnerships with Liaocheng University, Qingdao University, Shandong Agricultural University, Shandong University, and the Chinese Academy of Agricultural Sciences, we receive strong technical support from industry experts.
 
 

  "You provide a request, we'll give you a perfect product".
  We uphold the business philosophy "integrity, efficiency, cooperation, innovation", quality first, advanced technology, precision production, integrity   management, efficient service, to support our customers with the top quality products and super sophisticated technology.

 

1. Reliable Quality Assurance System
2. Cutting-Edge Computer-Controlled CNC Machines
3. Bespoke Solutions from Highly Experienced Specialists
4. Customization and OEM Available for Specific Application
5. Extensive Inventory of Spare Parts and Accessories
6. Well-Developed Worldwide Marketing Network
7. Efficient After-Sale Service System

The 219 sets of advanced automatic production equipment provide guarantees for high product quality. The 167 engineers and technicians with senior professional titles can design and develop products to meet the exact demands of customers, and OEM customizations are also available with us. Our sound global service network can provide customers with timely after-sales technical services.
We are not just a manufacturer and supplier, but also an industry consultant. We work pro-actively with you to offer expert advice and product recommendations in order to end up with the most cost-effective product available for your specific application. The clients we serve worldwide range from end users to distributors and OEMs. Our OEM replacements can be substituted wherever necessary and suitable for both repair and new assemblies.

Q: Why choose us?

A. We are a manufacturer; we have manufactured valves for over 20 years.
B. Reliable Quality Assurance System.
C. Cutting-Edge Computer-Controlled CNC Machines;
D. Bespoke Solutions from Highly Experienced Specialists.
E. Customization and OEM are available for specific applications.
F. Extensive Inventory of Spare Parts and Accessories;
G. Well-Developed Worldwide Marketing Network;
H. Efficient After-Sale Service System

 

Q. What is your payment term?
 A: 30% TT deposit, 70% balance T/T before shipping.
 
Q: Can we print our logo on your products?
A: Yes, we offer OEM/ODM service. We support customized logo, size, package, etc.
 
Q: What is your main market?
A: North America, South America, Eastern Europe, Western Europe, Southeast Asia, Africa, Oceania, Middle East, Eastern Asia.
 
Q: Can I get samples from your factory?
A: Yes, Samples can be provided.