China best Large Cast Steel Rope Sheave with Groove Hardening pulley assembly

Product Description

Product Parameters

Material:VLC620AW

Material C Si Mn P S Cr Mo Ni Cu V
As Required ≤0.25 ≤0.60 0.50-1.70 ≤0.030 ≤0.030 ≥0.40 ≥0.15 ≥0.40 ≤0.30 ≤0.12
Actual 0.21 0.47 0.91 0.018 0.012 0.63 0.21 0.73 0.05 0.006

 

Mechanical Property Tensile Test Impact Test
As Rquired Yield Tensile Strength Elongation Recution of Area Akv,-20° ≥42J
≥430 ≥620 ≥16 ≥30 1 2 3 Average
Actual 600 740 20 51 79 57 72 69

  
It is up to customers’ requirement.
 

Item Standard
Casting Material EN 15713/EN 10571/BS 3100/DIN 1681/DIN17205
Casting Tolerance in Blank ISO 8062 CT 13
Size Tolerance DIN ISO 2768m
NDT ASTM A609 Level 2 or 3 /EN 12680/ASTM E94 Level 2 or 3
Heat Treatment Normalizing+Tempering+Quenching
Hardness As Required

Company Profile

Haian CHINAMFG Casting Co.,Ltd. is established in 2003 in CHINAMFG Town.

In 2007,we moved our factory to Sunzhuang town and now we can supply bigger steel castings with max. weight 45 tons.

In 2011,we built a new sand mold maiking workshop with 120 tons refinining CHINAMFG and the max. weight can be 120 tons.

In 2013,we paid more attenion on the castings for shipbuilding and started to supply marine castings for most of domestic famous shipyards.

From 2013 to 2571,we bought more and more machines to strengthen our ability from rough machining to finished machining.

In 2571,we built another new sand mold making workshop for the quick development of market requirement.

Now we monthly supply 6000 tons different castings for different customers of different industry,such as cement mill,shipubuilding,petroleum machinery,rolling mill,forging press and so on.

 

Prdocution Process

1)Pattern making

We have our own wooden pattern making workshop.
But our company is always busy,
we also have around 10 sub-contractors for pattern making.
They help us for the pattern but will be inspected according to our rules.
We will record for every pattern inspection.

2)Sand core making

We have around 80 technicans for sand core making which is divided into around 10 teams.
Most of the technicans has more than 10 years’ experience.

Most of the sand core is made by silica sand with common sand inside of it.
The common sand will be used repeatly.
For some important position,such as R corner,we will use chorme ore sand.

The outside of the sand core,we will do the painting,burn and clean it.

We will assemble diffrent sand cores together and wait for pouring.

3)Melting and pouring

We always do the melting after mid-night for cheaper electric charge.
And we normally do pouring in the early morning.

No. Equipment Name Quantity(Set)
1 25 tons Electrical Arc Furnace 1
2 50 tons Intermediate Frequency Furnace 2
3 120 tons Refining Furnace 1
4 120 tons VD Furnace 2

4)Cooling
Chemical composition

When we do the pouring,we will also take the sample and check the chemical compositon.

After pouring,we will wait for different time for cooling according to casting’s weight.

Item Weight in blank(Metric Tons) Cooling Time(Hour)
1 <25 48
2 >25-40 72
3 >40-55 96
4 >55-72 120
5 >72-96 144
6 >96-115 168
7 >115 192

5)Heat treatment

The maximum size of the heat treatment CHINAMFG is 12m*9m*6m.
The size also decide the max. size we can make for the casting.

We only can do normalizing and tempering.
The quenching if needed will be done by our sub-contactor.

Cutting the riser,we choose thermal cutting method.

After heat treatment,we will do the mechanical property test.

6)Draw the line and do the first rough machining
We can do the machining from rough to finished machining.

7)NDT after rough machining
 

8)Welding repair
We have rich experience for making support rollers and kiln tyres,
then there is no welding for the outside working position.
This is our special technology.

Every year we supply around 400pcs kiln tyres,930pcs support roller,170 sets gear( in 2 halves).

But for some other castings,if we do the welding repair,
we will do the tempering for stress relief later.

All of our welders have the SGS certficate.
 

9)Final machining
We have a lot of vertical lathes from 2.5m to 10m.
 

 

Certifications

We get approval from CNAS for our laboratory.
We also have 9 class certificate,such as ABS,DNV,NK,RINA,KR,CCS,BV and so on.
 

Packaging & Shipping

We supply a lot of castings for cement mill,rolling mill,shipbuilding and so on.

We can do the packing according to our rules or according to customers’ requirement.

 

 

After Sales Service

Normally there is a 12 months quality warantty.

We do at least 3 times NDT:after rough,semi-finished and finished machining.

And also the customer will do the witness during or after finished machining.

If there is also any problem when you receive the castings,
please send us photos and detailed defects,
we will negotiate with you and make a compensation.

A third party inspection before shipment is welcomed.

 

 

 

 

 

Shipping Cost:

Estimated freight per unit.



To be negotiated
Type: Chemical Hardening Sand
Casting Method: Directional Crystallization
Sand Core Type: Sodium Silicate Sand Core
Samples:
US$ 20/kg
1 kg(Min.Order)

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Order Sample

Customization:
Available

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Customized Request

rope pulley

Can rope pulleys be employed in both commercial and residential settings?

Yes, rope pulleys can be employed in both commercial and residential settings. Here’s a detailed explanation:

Commercial Settings:

In commercial settings, rope pulleys find a wide range of applications:

1. Construction and Rigging: Rope pulleys are extensively used in construction and rigging operations. They are employed for lifting and moving heavy materials, equipment, or scaffolding systems. Pulleys with high load capacities and robust construction are utilized to ensure safety and efficiency in commercial construction projects.

2. Entertainment and Stage Rigging: Rope pulleys are commonly utilized in the entertainment industry for stage rigging, theatrical productions, and concerts. They enable the raising and lowering of props, scenery, and lighting fixtures. Pulley systems with smooth operation and precise control are essential for the seamless execution of performances.

3. Cargo Handling and Transportation: Rope pulleys play a significant role in cargo handling and transportation industries. They are employed in systems such as cranes, hoists, and elevators to facilitate the movement of goods and materials. Pulleys with high load capacities, durability, and reliable braking mechanisms are utilized to ensure safe and efficient cargo transportation.

Residential Settings:

In residential settings, rope pulleys can be employed in various applications:

1. Clotheslines and Drying Racks: Rope pulleys are commonly used in clothesline systems and drying racks in residential properties. They allow for easy hanging and retracting of clothes, maximizing outdoor drying space and convenience.

2. Home Gym and Exercise Equipment: Rope pulleys can be incorporated into home gym setups and exercise equipment. They are employed in cable machines, weightlifting systems, and resistance training devices to provide adjustable resistance and smooth movement during workouts.

3. Garage and Storage Systems: Rope pulleys can be utilized in garage and storage systems for overhead storage solutions. They enable the lifting and lowering of items such as bicycles, kayaks, or storage containers, maximizing the use of vertical space.

4. Window Treatments: Rope pulleys are sometimes used in residential window treatments, such as Roman shades or blinds. They facilitate the raising and lowering of window coverings, allowing for adjustable light control and privacy.

It’s important to note that while rope pulleys can be employed in both commercial and residential settings, the specific requirements and considerations may vary. In commercial settings, factors such as load capacity, durability, and adherence to industry regulations are crucial. In residential settings, considerations may include ease of use, convenience, and aesthetics.

The selection and installation of rope pulleys in commercial and residential settings should be carried out in accordance with relevant safety guidelines and manufacturer recommendations to ensure proper functionality and user safety.

rope pulley

Are there safety considerations when working with rope pulley systems?

Yes, there are several safety considerations that should be taken into account when working with rope pulley systems. Here’s a detailed explanation:

1. Proper Training: Individuals involved in working with rope pulley systems should receive proper training on their operation, maintenance, and safety procedures. This includes understanding the correct use of equipment, knowledge of potential hazards, and the ability to identify and respond to emergency situations.

2. Load Capacity: It is crucial to ensure that the rope pulley system is not overloaded beyond its specified load capacity. Overloading can cause excessive stress on the pulleys, ropes, and other components, leading to potential failures and accidents. Always adhere to the manufacturer’s recommendations and guidelines regarding load limits.

3. Inspection and Maintenance: Regular inspections and maintenance of rope pulley systems are necessary to identify any signs of wear, damage, or malfunction. Inspecting sheaves, ropes, attachment points, and other components can help detect issues before they escalate into safety hazards. Promptly address any identified problems through proper maintenance and repair procedures.

4. Proper Rope Selection: Selecting the appropriate rope type and size for the specific application is crucial for safety. The rope should have sufficient strength and durability to handle the anticipated load and environmental conditions. Consider factors such as abrasion resistance, breaking strength, and compatibility with the pulley system when choosing the rope.

5. Protective Equipment: Personal protective equipment (PPE) should be used when working with rope pulley systems, especially in high-risk environments. This may include items such as safety helmets, gloves, eye protection, and fall protection equipment, depending on the nature of the task and associated hazards.

6. Secure Anchoring: Ensure that the anchor points used for supporting the rope pulley system are secure and able to withstand the anticipated loads. Unstable or insufficiently anchored pulley systems can lead to accidents and injuries. Consider factors such as the strength of the structure or anchoring point, and use appropriate hardware and rigging techniques.

7. Clear Communication: Clear communication among workers involved in rope pulley operations is essential for safety. Establishing effective communication protocols, including signals and commands, helps prevent misunderstandings and ensures coordinated actions during tasks.

8. Fall Prevention: When working at heights or in elevated positions using rope pulley systems, fall prevention measures must be employed. This may include the use of proper harnesses, lanyards, and fall arrest systems to protect workers from potential falls.

9. Emergency Preparedness: Have appropriate emergency response plans in place in case of accidents or equipment failures. This includes procedures for rescue, first aid, and evacuation. Regularly practice emergency drills to ensure that all personnel are familiar with the protocols.

10. Compliance with Regulations: Follow relevant safety regulations, codes, and standards specific to your industry and jurisdiction. These regulations may include requirements related to equipment inspection, maintenance, training, and safe work practices.

It is crucial to prioritize safety when working with rope pulley systems. By implementing proper training, conducting regular inspections, adhering to load capacity limits, using appropriate PPE, securing anchor points, promoting clear communication, and following safety regulations, the risk of accidents and injuries can be significantly reduced.

rope pulley

In which industries are rope pulleys commonly employed?

Rope pulleys find extensive usage across various industries due to their versatility and ability to provide mechanical advantage. Here are some industries where rope pulleys are commonly employed:

  • Construction and Engineering: Rope pulleys are widely used in the construction and engineering industry. They assist in lifting and moving heavy building materials, operating cranes and hoists, and facilitating rigging operations. Rope pulleys are essential in tasks such as erecting structures, positioning equipment, and transporting materials on construction sites.
  • Manufacturing and Warehousing: In manufacturing facilities and warehouses, rope pulleys play a crucial role in material handling, assembly line operations, and conveyor systems. They are used to guide and redirect belts or ropes, facilitating the movement and transport of goods. Rope pulleys ensure efficient workflow and optimize productivity in these industries.
  • Maritime and Shipping: Rope pulleys are integral to the maritime and shipping industry. They are utilized in various applications onboard ships and boats, including sailing systems, winches, cranes, and rigging operations. Rope pulleys enable the adjustment of sails, lifting heavy loads, and maneuvering equipment and rigging on vessels.
  • Outdoor Recreation and Adventure: Rope pulleys play a significant role in outdoor recreational activities such as rock climbing, mountaineering, zip-lining, and rope courses. They are used in pulley systems to provide mechanical advantage, facilitate controlled movement, and ensure safety during these adventure sports.
  • Rescue and Emergency Services: Rope pulleys are essential in rescue and emergency services. They are employed in scenarios such as mountain rescue, confined space rescue, and swiftwater rescue. Rope pulleys enable controlled lowering or raising of personnel and equipment, ensuring safe and efficient extraction in critical situations.
  • Agriculture and Forestry: In the agriculture and forestry sectors, rope pulleys are used for various tasks such as lifting heavy loads, handling equipment, and facilitating forestry operations. They assist in tasks like tree felling, log skidding, and material transport, contributing to the efficiency and productivity of these industries.

These are just a few examples of the industries where rope pulleys are commonly employed. Their versatile nature and ability to enhance mechanical advantage make them valuable tools in a wide range of applications. The specific industry and application requirements dictate the selection of appropriate rope pulleys to optimize performance, efficiency, and safety.

China best Large Cast Steel Rope Sheave with Groove Hardening   pulley assembly	China best Large Cast Steel Rope Sheave with Groove Hardening   pulley assembly
editor by CX