▍What is a Leaf Chain (Hoisting Chain)?
A leaf chain (Hoisting Chain) is a type of chain constructed from steel link plates and pins, which are joined together to form a continuous loop. It is commonly used in material handling applications such as forklifts and straddle carriers due to its durability and high tensile strength. Leaf chain (Hoisting Chain) is designed to cope with heavy loads and is often used in the automotive, food and beverage, mining and metals, and construction industries. Leaf chains (Hoisting Chains) are typically more expensive than other chains due to their higher tensile strength and durability.
▍BL Leaf Chain Size Chart
|ሰንሰለት መጠን||መያያዣ||ፒች (ፒ)||የመሸከምና ጥንካሬ||ክብደት (በአንድ ጫማ)||የፒን ዲያሜትር (ዲ)||የፒን ርዝመት (L)||የፕላዝማ ቁመት||የሰሌዳ ውፍረት (ቲ)|
|BL622 ቅጠል ሰንሰለት||2X2||0.750 "||14,100 ፓውንድ||1.13 ፓውንድ||0.312 "||0.645 "||0.713 "||0.125 "|
|BL623 ቅጠል ሰንሰለት||2X3||0.750 "||14,100 ፓውንድ||1.37 ፓውንድ||0.312 "||0.778 "||0.713 "||0.125 "|
|BL634 ቅጠል ሰንሰለት||3X4||0.750 "||23,000 ፓውንድ||1.90 ፓውንድ||0.312 "||1.041 "||0.713 "||0.125 "|
|BL644 ቅጠል ሰንሰለት||4X4||0.750 "||27,000 ፓውንድ||2.14 ፓውንድ||0.312 "||1.173 "||0.713 "||0.125 "|
|BL646 ቅጠል ሰንሰለት||4X6||0.750 "||27,000 ፓውንድ||2.69 ፓውንድ||0.312 "||1.437 "||0.713 "||0.125 "|
|BL666 ቅጠል ሰንሰለት||6X6||0.750 "||42,000 ፓውንድ||3.18 ፓውንድ||0.312 "||1.701 "||0.713 "||0.125 "|
|BL688 ቅጠል ሰንሰለት||8X8||0.750 "||53,682 ፓውንድ||4.02 ፓውንድ||0.312 "||2.248 "||0.713 "||0.125 "|
▍Types of Leaf Chain
BL Series Leaf Chain(LH Leaf Chain)
BL leaf chains consist of link plates thicker and larger in contour than the AL series link plates of the same pitch. The link plates have the same thickness as the next larger pitch size in ANSI roller chains. The pins have the same diameter as those of ANSI roller chains of the next larger pitch.
AL Series Leaf Chain(American Standards)
Plate configuration and thickness are the same as the ANSI roller chain. The pin diameter is almost the same as the ANSI roller chain. AL leaf chain (manufactured to the ANSI B29.9 standard) is constructed from American standard roller chain components. AL series leaf chain is a lightweight chain used for light-load lifting applications and machine tools.
LL Series Leaf Chain(European Standards)
LL leaf chain, manufactured according to ISO4347, DIN8152, and NFE26107 standards, is constructed from roller chain components to European standards. Like the AL leaf chain, the LL leaf chain is a lightweight chain used for light-load lifting applications and machine tools.
▍The Structure of the Leaf Chain (Hoisting Chain)
A leaf chain (Hoisting Chain) is composed of two parts, a chain plate, and a pin shaft. The chain plates are connected by the pin shaft to withstand the tension of the chain plate. The outer chain plate and the pin shaft have an interference fit, and the inner chain plate and the pin shaft have a sliding fit. Compared with roller chains, leaf chains have a greater strength/weight ratio.
- Outer chain plate
The outer chain plate of the leaf chain is made of special steel, which can resist sudden load and provide maximum resistance to fracture.
- የተሸከመ ፒን
The load-bearing pin of the leaf chain has strong bending resistance, excellent wear performance, and long life.
- Inner chain plate
Through the precise control of the pin shaft and the aperture of the chain plate, the movement of the inner chain plate is improved, friction is minimized, and the economy and efficiency of chain operation are improved.
▍Applications of Leaf Chain (Hoisting Chain)
As a common transmission and lifting device, a leaf chain (hoisting chain) is generally used in drives with large power and slow speed, and it is also suitable for corrosion-resistant, clean, or demanding chemical fields and high and low-temperature environments.
Leaf chains (hoisting chains) are widely used in the lifting equipment industry, construction machinery industry, bulk material industry, etc. Specific applications include forklifts, stackers, parking garages, ascending platforms, etc.
▍Leaf Chain Manufacturing Process
የቅጠል ሰንሰለት ማምረቻ መሰረታዊ የቴክኖሎጂ ሂደት የጥሬ ዕቃ ዝግጅት፣ ክፍሎች ማቀነባበሪያ (ሰንሰለት ሳህኖች፣ ፒን)፣ የመንከባለል ሂደት፣ ክፍሎች የሙቀት ሕክምና፣ የገጽታ አያያዝ፣ ክፍሎች ዘይት መቀባት፣ ስብሰባ እና ሌሎች እርምጃዎችን ያጠቃልላል።
1. Selected high-quality raw materials
የቅጠል ሰንሰለት ከፍተኛ ጥራት ያለው የካርበን መዋቅራዊ ብረት፣ ቅይጥ መዋቅራዊ ብረት እና የስፕሪንግ ብረትን ጨምሮ ከፍተኛ አፈጻጸም ያላቸውን ጥሬ ዕቃዎች በጥንቃቄ ይመርጣል እና ጥሬ ዕቃዎቹን በጥብቅ ይቆጣጠራል።
2. Rigorous and comprehensive raw material testing
It has advanced and complete testing laboratories at each of our factories, which conducts scientific and rigorous comprehensive testing of each raw material to ensure that they meet the quality and safety requirements.
3. High-quality and efficient parts processing
The parts are processed by high-precision high-speed punches, high-speed cutting equipment, etc.
4. Heat treatment of parts
ሙሉ በሙሉ በራስ ሰር የሚሰራው የሜሽ ቀበቶ እቶን መስመር፣ ሮታሪ ምድጃዎች፣ መቀየሪያ እና ሌሎች መሳሪያዎች የቅጠል ሰንሰለትን ጥንካሬ እና ጥንካሬ ለማሻሻል የቅጠል ሰንሰለት ክፍሎችን ለማስኬድ ያገለግላሉ።
የተጠናቀቀውን የቅጠል ሰንሰለት በትክክል እና በብቃት ለመገጣጠም የቅጠሉ ሰንሰለቱ በራስ-ሰር የመገጣጠም እና የሙከራ መስመሮችን በማለፍ ያልፋል።
6. የተጠናቀቀ ምርት ምርመራ
ከፋብሪካው ከመውጣቱ በፊት, የቅጠሉ ሰንሰለት እንደ ውጥረት, ልብስ እና ድካም የመሳሰሉ የሰንሰለት አፈፃፀም ሙከራዎችን ጨምሮ ተከታታይ ምርመራዎችን እና ሙከራዎችን ማጠናቀቅ አለበት.
▍Leaf Chain Manufacturers & Suppliers
You’ll find the right product whether you need a leaf chain for forklifts, machine tools, rolling door counterbalances, or any other application. We vet all leaf chain suppliers and products for the highest-quality, most durable leaf chains. All of our leaf chains are heavy-duty with tensile strengths that vary from thousands to tens of thousands of pounds. Our store features two types of leaf chains, the AL-Series for lighter lifting, and the BL Series for more heavy-duty work. Additionally, our leaf chains meet both ANSI and ASME standards.