Product Description

Product Description

Frame scaffolding is also called tubular steel frame scaffolding, door style frame scaffolding, is a long established modular frame scaffolding system serving as working platform for construction and decoration purposes, which is composed of main frames, catwalk or walk board, braces or cross braces, brackets, coupling pins of spigot, guardrails and sometimes casters, etc.

Pic. Item A (Width) B (Height)
Main Frame

Outer tube: 42*2.2mm/2.0mm/1.8mm

Inner tube: 25*1.5mm/1.8mm/2.0mm

1219mm 914mm
1219mm 1219mm
1219mm 1524mm
1219mm 1700mm
1219mm 1930mm
914mm 1219mm
914mm 1524mm
914mm 1700mm
914mm 1930mm
H Frame

Outer tube: 42*2.2mm/2.0mm/1.8mm

Inner tube: 25*1.5mm/1.8mm/2.0mm

1219mm 914mm
1219mm 1219mm
1219mm 1524mm
1219mm 1700mm
1219mm 1930mm
914mm 914mm
914mm 1219mm
914mm 1524mm
914mm 1700mm
914mm 1930mm
Item A (width) B (height) C (length)
  1829mm 1219mm 2198mm
1219mm 1219mm 1724mm
1829mm 914mm 2045mm
1829mm 610mm 1928mm
1219mm 610mm 1363mm
Item Size
Joint Pin 36*1.5*225mm
36*1.2*225mm
36*1.0*225mm

Packaging & Shipping

Application

Company Profile

HangZhou CHINAMFG Industry Co., Ltd, with an investment of U.S. Dollars of 8 million, is a professional manufacturer engaged in the design, production & sale of scaffolding systems.

1. Location: HangZhou CHINAMFG is leading scaffolding manufacturer, located in HangZhou, ZheJiang Province, the raw material basement.
2. Team: We have professional team for sale, project design and construction.
3. Main products: Ringlock Scaffolding, Frame Scaffolding, Steel Plank, Catwalk, Ladders, Pipe & Clamp, Steel Prop, etc.
4. Production capacity: 7000-10000 Tons/month.
5. Loading capacity: 8-12 containers/day.
6. Delivery time: 10-15 days for 3-5 containers.
Fast delivery to satisfy your urgent project demand.

FAQ

Q1: Are you a factory or trading company?    
A: We are a factory specializing in manufacturing scaffolding material.
Q2: Where is the loading port?
A: ZheJiang (Xihu (West Lake) Dis.g) Port.
Q3: What’s the MOQ of the product?
A: Different item has different MOQ. Normally one Container is preferred.
Q4: What certificates do you have?
A: We have ISO 9001, SGS certification.
Q5: Can I get some samples?    
A: Yes,  but usually the customer will pay for the cost and freight charges. 
Q6: Do you have an OEM service?
A: Yes. We can provide OEM and ODM services as your requirements.
Q7: How long is the production cycle after ordering?
A: General it is about 15-30 days, according to different quantity requirement.

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Material: Steel
Structural Style: Multi-Pole Scaffolding
Framework: Combined Scaffolding
Supporting Mode: Projecting Scaffolding
Lapping Form: Full Scaffolding
Scaffolding Part Type: Scaffolding Frames
Customization:
Available

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Customized Request

China Good quality Galvanized Frame Scaffolding Joint Pin Coupling Pin for Walk Through Frames

pin coupling

How Do Pin Couplings Compare to Other Types of Couplings in Terms of Performance?

Pin couplings offer certain advantages and disadvantages compared to other types of couplings, and their performance characteristics can vary depending on the specific application requirements. Below is a comparison of pin couplings with some commonly used couplings:

1. Gear Couplings:

  • Flexibility: Gear couplings are more rigid than pin couplings and may not offer the same level of misalignment capacity.
  • Torsional Stiffness: Gear couplings provide higher torsional stiffness, making them suitable for applications requiring precise torque transmission.
  • Shock Absorption: Gear couplings can handle higher shock loads due to their robust design and greater stiffness.
  • Maintenance: Gear couplings may require periodic lubrication and maintenance compared to maintenance-free pin couplings.
  • Applications: Gear couplings are commonly used in heavy-duty and high-torque applications where precise torque transmission is essential.

2. Flexible (Elastomeric) Couplings:

  • Flexibility: Elastomeric couplings offer higher misalignment capacity than pin couplings and can handle angular, parallel, and axial misalignment.
  • Shock Absorption: Elastomeric couplings provide excellent shock absorption, damping vibrations, and protecting connected equipment.
  • Torsional Stiffness: Elastomeric couplings have lower torsional stiffness compared to pin couplings, making them more forgiving in high shock load applications.
  • Installation: Elastomeric couplings are easy to install and require no lubrication, making them maintenance-free.
  • Applications: Elastomeric couplings are commonly used in pumps, compressors, and other machinery where vibration isolation is crucial.

3. Rigid Couplings:

  • Torsional Stiffness: Rigid couplings provide high torsional stiffness, ensuring accurate torque transmission.
  • Misalignment Capacity: Rigid couplings have little to no misalignment capacity and require precise shaft alignment.
  • Applications: Rigid couplings are used in applications where precise alignment is essential, such as shaft-to-shaft connections in high-precision systems.

Conclusion:

Pin couplings strike a balance between flexibility and torsional stiffness, making them suitable for applications with moderate misalignment and shock loads. They are often used in general industrial applications, conveyors, and light to medium-duty machinery.

When selecting a coupling for a specific application, it is crucial to consider factors such as misalignment requirements, shock and vibration loads, torsional stiffness, maintenance needs, and the level of precision required. Each coupling type has its strengths and weaknesses, and the appropriate choice will depend on the specific demands of the application.

pin coupling

What Industries Commonly Use Pin Couplings for Power Transmission?

Pin couplings are widely used in various industries for power transmission due to their ability to accommodate misalignment and provide reliable torque transmission. Some of the industries where pin couplings are commonly employed include:

  • 1. Manufacturing: In manufacturing processes, pin couplings are used in conveyor systems, mixers, agitators, and other machinery to transfer power between motors and driven equipment.
  • 2. Pulp and Paper: The pulp and paper industry uses pin couplings in machinery such as pumps, fans, and rotary kilns for continuous power transmission.
  • 3. Chemical and Petrochemical: Pin couplings find applications in chemical processing plants, refineries, and petrochemical facilities for various rotating equipment.
  • 4. Water and Wastewater: Pin couplings are used in water treatment facilities, pumps, and blowers to transfer power efficiently.
  • 5. Steel and Metal Processing: Steel mills and metal processing plants utilize pin couplings in rolling mills, extruders, and other equipment.
  • 6. Food and Beverage: Pin couplings are employed in food processing machinery, packaging equipment, and conveyor systems.
  • 7. Mining and Quarrying: The mining industry uses pin couplings in crushers, conveyor belts, and various mineral processing equipment.
  • 8. Oil and Gas: Pin couplings are used in the oil and gas sector for pumps, compressors, and drilling equipment.
  • 9. Power Generation: In power plants, pin couplings are used in turbines, generators, and other power transmission systems.
  • 10. Construction and Heavy Equipment: Pin couplings find applications in construction machinery, earthmoving equipment, and other heavy-duty machinery.
  • 11. Agriculture: In agricultural machinery, pin couplings are used in tractors, irrigation systems, and grain processing equipment.

These are just some examples of the industries where pin couplings are commonly used. Pin couplings offer versatility, ease of installation, and reliability, making them suitable for a wide range of applications in different sectors where power transmission is essential.

pin coupling

Understanding Pin Couplings and Their Functionality

A pin coupling, also known as a shear pin coupling, is a type of mechanical coupling used to connect two rotating shafts in a mechanical system. It is designed to transmit torque while allowing for a limited amount of angular misalignment between the shafts. The primary function of a pin coupling is to protect the connected equipment from torque overload and prevent damage to the shafts and other components in case of sudden shock or overload.

How a Pin Coupling Works:

A typical pin coupling consists of two hubs, one on each shaft to be connected, and a series of pins that pass through the hubs to join them together. The pins are usually made of a softer material than the hubs, such as brass or aluminum, to act as sacrificial elements. The number and size of the pins depend on the coupling’s torque rating and the required angular misalignment capacity.

When the shafts are misaligned, the pins experience shear stress as they bend under the applied load. In normal operating conditions, the pins remain intact and allow the torque to transfer from one shaft to another. However, in the event of an overload or excessive misalignment, the pins will shear off, preventing the transmission of excessive torque and protecting the connected equipment from damage.

After shearing, the damaged pins can be easily replaced, and the coupling can be put back into service without major repairs to the equipment. This feature makes pin couplings particularly suitable for applications with varying operating conditions and environments where shock loads or sudden overloads may occur.

Advantages of Pin Couplings:

Protection against Overload: The shear pins act as a safety feature, protecting the connected equipment from excessive torque and sudden shocks.

Misalignment Tolerance: Pin couplings can accommodate a limited amount of angular misalignment between the shafts.

Easy Replacement: After shearing, the damaged pins can be quickly replaced, reducing downtime and maintenance costs.

Versatility: Suitable for a wide range of applications, including pumps, compressors, and other industrial machinery.

Cost-Effective: The sacrificial pins are cost-effective components that can be easily replaced, avoiding costly repairs to the main equipment.

Limitations:

– Pin couplings have lower torque capacities compared to some other coupling types, such as gear couplings or rigid couplings.

– The need to replace the shear pins after each failure may lead to frequent maintenance requirements in applications with frequent overloads or misalignments.

In summary, pin couplings offer a reliable and cost-effective solution for torque transmission and protection against overloads in various mechanical systems. Their ability to accommodate misalignment and absorb shock loads makes them suitable for a wide range of industrial applications.

China Good quality Galvanized Frame Scaffolding Joint Pin Coupling Pin for Walk Through Frames  China Good quality Galvanized Frame Scaffolding Joint Pin Coupling Pin for Walk Through Frames
editor by CX 2024-04-10