Product Description

Product Description

1. Material: Gray Iron or Ductile Iron;
Gray iron HT200-350 (GG20-35, FC200-350);Ductile Iron QT400-QT600(GGG40-GGG60,FCD400-FCD600)
2. Surface treatment: Shot blast, painting; Heat treatment is optional;
3. Custom according to your drawing, specification or samples;

Material

  Gray Iron Casting/Ductile Iron Casting  

Process

Resin sand casting/shell mold casting/investment + CNC machining

  Casting Tolerance   CT9-10 for Machine Molding Process,
  CT8-9 for Shell Molding and Lost Foam Molding Casting Process
  CT10-11 for Manual Molding Sand casting Process

Casting surface roughness

Ra 12.5-25 um

Casting weight range

3kg to 2.5tons per piece

Casting Size

As Requirement/As drawing

Machining surface roughness

   As Requirement

Material standard

GB, ASTM, AISI, DIN, BS, JIS, NF, AS, AAR

Surface treatment

KTL (E-coating), Zinc plating, Mirror Polishing, Sand Blasting, Acid pickling, black oxide, Painting, Hot galvanizing, Powder coating, and Nickel plating.

Service available

OEM & ODM

Quality control/Testing facility

Sectrometer, tensile test machine, hardness test machine,metallographic microscope. 100% inspection

Application

Train & railway, automobile& truck, construction machinery, forklift, agricultural machinery, shipbuilding, petroleum machinery,construction, valves and pumps, electric machine, hardware, power equipment, and so on.

 

Product Parameters

Mechanical character

Grey Iron Grade in GB 9439 Gray iron Castings
Gray Iron Grade Single Specimen
Tensile Strength
σb≥/Mpa
Wall Thickness
/mm
Tensile Strength
σb≥/Mpa
HT100 100 >2.5~10 130
>10~20 100
>20~30 90
>30~40 80
HT150 150 >2.5~10 175
>10~20 145
>20~30 130
>30~40 120
HT200 200 >2.5~10 220
>10~20 195
>20~30 170
>30~40 160
HT250 250 >2.5~10 270
>10~20 240
>20~30 220
>30~40 200
HT300 300 >10~20 290
>20~30 250
>30~40 230
HT350 350 >10~20 340
>20~30 290
>30~40 260

 

Ductile Iron Grade in GB1348 Ductile Iron Castings
Iron Grade Wall Thickness
/mm
Tensile Strength(Min Mpa) Yield Strength(Min Mpa) elongation
% Min
QT400-18A >30~60 390 250 18
>60~200 370 240 12
QT400-15A >30~60 390 250 15
>60~200 370 240 12
QT500-7A >30~60 450 300 7
>60~200 420 290 5
QT600-3A >30~60 600 360 3
>60~200 550 430 1
QT700-2A >30~60 700 400 2
>60~200 650 380 1

 

Gray Iron Material Grades
Country Standard Equivalent Grades of Grey Iron (Gray Cast Iron)
ISO ISO 185 100 150 200 250 300 350
China GB 9439 HT100 HT150 HT200 HT250 HT300 HT350
USA ASTM A48 NO.20 NO.30 NO.35 NO.40 NO.50 NO.55
NO.25 NO.45 NO.60
Germany DIN 1691 GG10 GG15 GG20 GG25 GG30 GG35 GG40
Austria
European EN 1561 EN-GJL-100 EN-GJL-150 EN-GJL-200 EN-GJL-250 EN-GJL-300 EN-GJL-350  
Japan JIS G5501 FC100 FC150 FC200 FC250 FC300 FC350
Italy UNI 5007 G10 G15 G20 G25 G30 G35
France NF A32-101 FGL150 FGL200 FGL250 FGL300 FGL350 FGL400
UK BS 1452 100 150 200 250 300 350
India IS 210 FG150 FG200 FG260 FG300 FG350 FG400
Spain UNF FG15 FG20 FG25 FG30 FG35
Belgium NBN 830-01 FGG10 FGG15 FGG20 FGG25 FGG30 FGG35 FGG40
Australia AS 1830 T150 T220 T260 T300 T350 T400
Sweden SS 14 01 O110 O115 O120 O125 O130 O135 O140
Norway NS11 100 SJG100 SJG150 SJG200 SJG250 SJG300 SJG350

 

Ductile /Nodular Cast Iron Material Grades
Country Standard Equivalent Grades of Ductile iron (SG Iron, Nodular Graphite Iron)
ISO ISO 1083 400-15 450-10 500-7 600-3 700-2 800-2 900-2
400-18
China GB 1348 QT400-18 QT450-10 QT500-7 QT600-3 QT700-2 QT800-2 QT900-2
USA ASTM A536 60-40-18 60-42-10 70-50-05 80-55-06 100-70-03 120-90-02
65-45-12 80-60-03
Germany DIN 1693 GGG40 GGG50 GGG60 GGG70 GGG80
Austria
European EN 1563 EN-GJS-400-15 EN-GJS-450-10 EN-GJS-500-7 EN-GJS-600-3 EN-GJS-700-2 EN-GJS-800-2 EN-GJS-900-2
EN-GJS-400-18
Japan JIS G5502 FCD400 FCD450 FCD500 FCD600 FCD700 FCD800
Italy UNI 4544 GS370-17 GS400-12 GS500-7 GS600-2 GS700-2 GS800-2
France NF A32-201 FGS370-17 FGS400-12 FGS500-7 FGS600-2 FGS700-2 FGS800-2
UK BS 2789 400/17 420/12 500/7 600/7 700/2 800/2 900/2
India IS 1865 SG370/17 SG400/12 SG500/7 SG600/3 SG700/2 SG800/2
Spain UNF FGE38-17 FGE42-12 FGE50-7 FGE60-2 FGE70-2 FGE80-2
Belgium NBN 830-02 FNG38-17 FNG42-12 FNG50-7 FNG60-2 FNG70-2 FNG80-2
Australia AS 1831 300-17 500-7 600-3 700-2 800-2
400-12
Sweden SS 14 07 0571 -02 0727-02 571-03 571-01 0864-03
Norway NS11 301 SJK-400.3 SJK-500 SJK-600 SJK-700 SJK-800  
SJK-400  

 

Company Profile

 

About Us

 

ZheJiang Shengrong High-end Equipment Manufacturing Industry Co., Ltd. is a professional Gray cast iron/Ductile iron foundry in ZheJiang province in China,We produce iron casting parts:Machinery Bases,Construction machinery parts, Industrial pump parts,Gearbox parts,Automotive parts,Agriculture machine parts and OEM part. We have passed quality management system ISO 9001 and IATF16949. Our factory is located in Maba Town, Xihu (West Lake) Dis. County, HangZhou City, ZheJiang province, covering an area of about 245 acres with new standardized factory building more than 200,000 square meters, office building of 6,000 square meters, more than 500 employees, including more than 100 technological engineer.

Our company produces ductile iron and gray cast iron series products, with an annual output of 80,000 tons,products are exported to the United States, Germany, Italy, Russia, Brazil, Vietnam, the Middle East and other regions.

Our company has a modern workshop, complete casting production equipment, advanced physical and chemical analysis, testing equipment, constantly importing the world’s advanced technology and a large number of professional technical personnel, expanding advanced production and testing equipment, so that make our products can meet the different requirements of customers

ZheJiang Shengrong does our best to provide high-quality foundry machinery parts for the market, Serves domestic and foreign customers with the most cost-effective products, and make our contributing to China’s foundry industry.
 

Technology

Gray/Ductile/Nodular Iron Casting Parts-Our Process

Investment Casting         Resin Sand/Coated Sand Casting           Shell Moulding

 

Detailed Photos

Our Equipment and Testing

Certifications

 

 

FAQ

How to order?

1:Before quotation, please send me requirement details:
Casting Iron grade and number; Testing rod specification;
Casting parts order quantity;
The detailed drawing to indicate the tollerance(size, weight), technology standard,roughness;
Offering mold-yes or no;
Machining requirement details;
Heat treament;
Shipping details if special;
Testing requirement -If need and details;
Other information if required

2: Small order and samples order is acceptable by our factory
Contact us for price and details now
 

Casting Method: Thermal Gravity Casting
Process: Investment Casting
Molding Technics: Gravity Casting
Application: Machinery Parts
Material: Ductile Iron/Grey Iron
Surface Preparation: Sand Blast
Customization:
Available

|

Customized Request

cast pulley

How are cast pulleys employed in the operation of fitness equipment?

Cast pulleys play a significant role in the operation of fitness equipment, contributing to their functionality and effectiveness. They are utilized in various ways to enable smooth and controlled movements, resistance adjustments, and overall user experience. Here’s a detailed explanation of how cast pulleys are employed in the operation of fitness equipment:

  • Cable Systems: Cast pulleys are commonly used in cable systems found in a wide range of fitness equipment, such as weight machines, functional trainers, and cable crossover machines. Cable systems involve the use of cables and pulleys to create resistance and allow for targeted exercise movements. Cast pulleys are positioned at various points along the cable path to guide and redirect the cables, helping to create smooth and controlled resistance throughout the range of motion.
  • Adjustable Resistance: Cast pulleys are integral to the adjustable resistance mechanisms in many fitness machines. By changing the positioning of the cast pulleys, users can modify the resistance levels and intensity of their workouts. This adjustment can be achieved by altering the cable path, changing the effective length of the cable, or modifying the mechanical advantage provided by the pulley system. Cast pulleys, in conjunction with resistance adjustment mechanisms, allow users to customize their fitness routines according to their individual needs and goals.
  • Movement Patterns: Cast pulleys enable a wide range of movement patterns in fitness equipment. Whether it’s a lat pulldown machine, a cable row machine, or a functional trainer, cast pulleys guide the cables and provide the necessary mechanical advantage to perform various exercises. They allow for multi-directional movements, such as pulling, pushing, lifting, and rotating, enabling users to target specific muscle groups and perform a diverse range of exercises to build strength, flexibility, and coordination.
  • Smooth Operation: Cast pulleys contribute to the smooth operation of fitness equipment by reducing friction and facilitating consistent movement. High-quality cast pulleys with low friction bearings or bushings ensure that the cables move freely and smoothly, enhancing the user experience and minimizing unnecessary resistance or jerky motions. Smooth operation is crucial for maintaining proper form, reducing the risk of injury, and optimizing the effectiveness of the exercise.
  • Functional Training: Cast pulleys are extensively used in functional training equipment, such as cable machines and suspension trainers. Functional training emphasizes movements that mimic real-life activities and engage multiple muscle groups simultaneously. Cast pulleys facilitate the smooth and controlled movement of cables, allowing users to perform functional exercises that improve strength, stability, and functional movement patterns.
  • Accessory Integration: Cast pulleys also enable the integration of various accessories and attachments in fitness equipment. For example, they can support the attachment of handles, bars, ropes, or straps for different exercise variations and grip options. Cast pulleys provide the means to connect these accessories to the cable system, allowing users to target specific muscle groups and perform a wide range of exercises.

In summary, cast pulleys are employed in fitness equipment to enable cable systems, adjustable resistance, various movement patterns, smooth operation, functional training, and accessory integration. Their presence ensures smooth and controlled movements, resistance adjustability, and a versatile user experience. Cast pulleys contribute to the functionality and effectiveness of fitness equipment, helping users achieve their fitness goals through targeted and challenging workouts.

How are cast pulleys employed in the operation of fitness equipment?

Cast pulleys play a significant role in the operation of fitness equipment, contributing to their functionality and effectiveness. They are utilized in various ways to enable smooth and controlled movements, resistance adjustments, and overall user experience. Here’s a detailed explanation of how cast pulleys are employed in the operation of fitness equipment:

  • Cable Systems: Cast pulleys are commonly used in cable systems found in a wide range of fitness equipment, such as weight machines, functional trainers, and cable crossover machines. Cable systems involve the use of cables and pulleys to create resistance and allow for targeted exercise movements. Cast pulleys are positioned at various points along the cable path to guide and redirect the cables, helping to create smooth and controlled resistance throughout the range of motion.
  • Adjustable Resistance: Cast pulleys are integral to the adjustable resistance mechanisms in many fitness machines. By changing the positioning of the cast pulleys, users can modify the resistance levels and intensity of their workouts. This adjustment can be achieved by altering the cable path, changing the effective length of the cable, or modifying the mechanical advantage provided by the pulley system. Cast pulleys, in conjunction with resistance adjustment mechanisms, allow users to customize their fitness routines according to their individual needs and goals.
  • Movement Patterns: Cast pulleys enable a wide range of movement patterns in fitness equipment. Whether it’s a lat pulldown machine, a cable row machine, or a functional trainer, cast pulleys guide the cables and provide the necessary mechanical advantage to perform various exercises. They allow for multi-directional movements, such as pulling, pushing, lifting, and rotating, enabling users to target specific muscle groups and perform a diverse range of exercises to build strength, flexibility, and coordination.
  • Smooth Operation: Cast pulleys contribute to the smooth operation of fitness equipment by reducing friction and facilitating consistent movement. High-quality cast pulleys with low friction bearings or bushings ensure that the cables move freely and smoothly, enhancing the user experience and minimizing unnecessary resistance or jerky motions. Smooth operation is crucial for maintaining proper form, reducing the risk of injury, and optimizing the effectiveness of the exercise.
  • Functional Training: Cast pulleys are extensively used in functional training equipment, such as cable machines and suspension trainers. Functional training emphasizes movements that mimic real-life activities and engage multiple muscle groups simultaneously. Cast pulleys facilitate the smooth and controlled movement of cables, allowing users to perform functional exercises that improve strength, stability, and functional movement patterns.
  • Accessory Integration: Cast pulleys also enable the integration of various accessories and attachments in fitness equipment. For example, they can support the attachment of handles, bars, ropes, or straps for different exercise variations and grip options. Cast pulleys provide the means to connect these accessories to the cable system, allowing users to target specific muscle groups and perform a wide range of exercises.

In summary, cast pulleys are employed in fitness equipment to enable cable systems, adjustable resistance, various movement patterns, smooth operation, functional training, and accessory integration. Their presence ensures smooth and controlled movements, resistance adjustability, and a versatile user experience. Cast pulleys contribute to the functionality and effectiveness of fitness equipment, helping users achieve their fitness goals through targeted and challenging workouts.

cast pulley

How does the design of a cast pulley impact its performance?

The design of a cast pulley has a significant impact on its performance in power transmission applications. A well-designed pulley ensures efficient and reliable power transmission, minimizes wear and tear, and enhances the overall performance of the machinery. Here are some ways in which the design of a cast pulley affects its performance:

  • Size and Configuration: The size and configuration of a cast pulley directly impact its performance. The diameter and width of the pulley determine the speed ratio and power transmission capability. Proper sizing ensures optimal belt or chain alignment, preventing slippage and maximizing power transfer efficiency. The configuration of the pulley, such as the number of grooves or the presence of flanges, affects the type of belt or chain used and the overall stability and operation of the power transmission system.
  • Groove Profile: The groove profile of a cast pulley plays a crucial role in belt or chain engagement and power transmission. The design of the groove, whether it is V-shaped, round, or flat, must match the corresponding belt or chain type to ensure proper grip and minimize slippage. The groove profile also affects the distribution of forces and tensions within the power transmission system, influencing the pulley’s performance and longevity.
  • Material Selection: The choice of material for the cast pulley design is important for performance. Different materials offer varying levels of strength, durability, corrosion resistance, and wear resistance. The material selection should consider factors such as the load requirements, operating conditions, and desired service life of the pulley. Appropriate material selection ensures that the pulley can withstand the forces and stresses involved in power transmission, reducing the risk of premature failure or damage.
  • Shaft Attachment: The design of the pulley’s shaft attachment mechanism is critical for performance. Proper alignment and secure attachment to the shaft prevent slippage, misalignment, and excessive vibration during power transmission. The design may include keyways, set screws, or other mechanisms to ensure a reliable connection between the pulley and the shaft.
  • Balance and Alignment: A well-designed cast pulley considers balance and alignment factors. Proper balancing minimizes vibration and reduces stress on the pulley, shaft, and other components, leading to smoother operation and extended service life. The pulley design should also facilitate easy alignment with other pulleys and components in the power transmission system, ensuring efficient power transfer and reducing wear and tear.
  • Additional Features: The inclusion of additional features in the pulley design can enhance its performance. For example, the design may incorporate cooling fins or ventilation holes to dissipate heat generated during operation, preventing overheating and improving overall efficiency. Design features such as flanges or hubs can facilitate the integration of the pulley into the machinery or equipment, ensuring stability and proper functioning of the power transmission system.

In summary, the design of a cast pulley directly influences its performance by determining its size, configuration, groove profile, material selection, shaft attachment mechanism, balance and alignment, and additional features. A well-thought-out design ensures optimal power transmission, reduces wear and tear, enhances efficiency, and contributes to the overall performance and reliability of the machinery or equipment.

cast pulley

What are the key characteristics of a cast pulley’s construction?

A cast pulley is a type of pulley that is manufactured through the casting process, which involves pouring molten metal into a mold and allowing it to cool and solidify. The construction of a cast pulley exhibits several key characteristics:

  1. Material: Cast pulleys are typically made from durable materials such as cast iron, cast steel, or cast aluminum. These materials offer high strength and resistance to wear and corrosion, making them suitable for various industrial applications.
  2. Shape and Design: Cast pulleys come in a variety of shapes and designs depending on their intended use. Common shapes include flat, V-shaped, and grooved pulleys. The design may also feature spokes or arms to enhance structural integrity and reduce weight.
  3. Machined Surfaces: After the casting process, the surfaces of the cast pulley are machined to achieve precise dimensions and smooth finishes. This ensures proper alignment and reduces friction with belts or ropes that run on the pulley.
  4. Bore and Shaft Fit: Cast pulleys have a central bore or hub where they are mounted onto a shaft. The bore is typically machined to achieve a precise fit with the shaft, ensuring a secure connection and efficient power transmission.
  5. Reinforcement: In some cases, cast pulleys may be reinforced with additional components to enhance their strength and durability. This can include the addition of ribs, flanges, or other structural elements that provide extra support and prevent deformation under heavy loads.
  6. Balance: Proper balance is crucial for the smooth operation of a pulley system. Cast pulleys are carefully balanced during the manufacturing process to minimize vibration and reduce stress on the pulley, shaft, and associated components.
  7. Mounting and Fixing: Cast pulleys are designed to be easily mounted and fixed in place. They may have keyways, set screws, or other mechanisms to secure them to the shaft and prevent slipping or rotation during operation.

Overall, the construction of a cast pulley involves selecting suitable materials, casting the pulley shape, machining the surfaces, ensuring proper fit with the shaft, reinforcing as needed, balancing the pulley, and providing mechanisms for secure mounting. These characteristics collectively contribute to the reliability, efficiency, and longevity of cast pulleys in various industrial and mechanical applications.

China factory Investment Casting Parts Steel Pulley for Crane   wholesaler China factory Investment Casting Parts Steel Pulley for Crane   wholesaler
editor by CX

2023-09-25