Professional Extension Ring Manufacturer
Cangzhou Hanshun Electric Power Equipment Co., Ltd. was formerly known as Junye Electric Power Equipment Factory, established in 2007 and has a history of 18 years. It specializes in the production of transmission line hardware, distribution hardware, power station hardware, and power plant hardware.
-
PH-7 Extension RingModel Meaning: PH indicates an extension ring, and 7 indicates a nominal breaking load of 70kN.Material: Made of steel with a hot-dip galvanized surface for excellent corrosion resistance and suitability for harsh outdoor operating
-
PH-12 Extension RingModel Meaning: PH indicates extension ring, and 12 indicates a nominal breaking load of 120kN.Material: Made of hot-dip galvanized steel with a hot-dip galvanized surface treatment, it offers excellent corrosion resistance and is suitable
-
PH-21 Extension RingModel number meaning: PH indicates an extension ring, and 21 indicates a nominal breaking load of 210kN.Product Features: Made using a one-piece forging process, the ring body is highly strong. The hot-dip galvanized surface provides
-
PH Extension RingProduct Models: PH-21130, HP-12120, PH-0780Features: PH extension ring typically manufactured using a one-piece forging process, the ring body offers high strength. The hot-dip galvanized surface provides excellent corrosion resistance and
Why Choose Us
Quality Assurance
We have professional personnel to monitor the production process, inspect the products and ensure that the final product meets the required quality level standards, guidelines and specifications.
Production Equipment
Cangzhou Hanshun Electric Power Equipment Co., Ltd. covers an area of 10,000 square meters. Large laser cutting machines, drilling machines, and punch presses.
Customized Services
We understand that each customer has unique manufacturing needs. That's why we offer customization options to cater to your specific requirements.
Sales Market
Until now, except the domestic sales, our products had exported to more than 50 countries, such as United States, Chile, Argentina, Peru, Bolivia, DominicaRepublic, Honduras, Nicaragua, Mexico, Philippines, Thailand, Vietnam, Myanmar, Indonesia, Palestine, etc.
Types of Extension Ring
Extension rings come in many sizes and models, each with its own unique performance characteristics. Below, we'll introduce each:
PH extension ring
Its primary features are parallel connections and stable load-bearing properties. It's used for extending straight sections and for general connections with low to medium loads.
P-type extension ring
Suitable for small angles and flexible installation, it facilitates corner connections and equipment transitions.
PT-type extension ring
Its adjustable length offers high tolerance, making it suitable for dynamic load zones and compensating for dimensional deviations during construction.
Product Parameters
|
Stable design Catalog No. |
Catalog No. |
Main dimensions(mm) |
Specified Failure load(kN) |
Weight(kg) |
||
|
C |
M |
H |
||||
|
PH-7 |
20 |
16 |
80 |
70 |
0.4 |
|
|
PH-10 |
22 |
18 |
100 |
100 |
0.6 |
|
|
PH-12 |
24 |
20 |
120 |
120 |
0.9 |
|
|
PH-16 |
26 |
22 |
140 |
160 |
1.5 |
|
|
PH-21 |
30 |
24 |
160 |
210 |
1.6 |
|
|
PH-25 |
34 |
26 |
160 |
250 |
2.0 |
|
|
PH-30 |
38 |
30 |
180 |
300 |
3.0 |
|
|
PH-0780 |
20 |
16 |
80 |
70 |
0.4 |
|
|
PH-10100 |
22 |
16 |
100 |
100 |
0.5 |
|
|
PH-12120 |
24 |
18 |
120 |
120 |
0.9 |
|
|
PH-16120 |
26 |
20 |
120 |
160 |
0.9 |
|
|
PH-21130 |
26 |
20 |
130 |
210 |
1.0 |
|
|
PH-25120 |
32 |
24 |
120 |
250 |
1.3 |
|
|
PH-32140 |
36 |
28 |
140 |
320 |
2.0 |
|
|
Material |
These extension rings are typically made from steel or iron |
|||||
|
Surface Treatment |
They undergo processes such as anti-rust oil, powder coating, or hot-dip galvanization to enhance durability and protect against corrosion |
|||||
Functions and Features of Extension Ring

High Efficiency and Energy Saving
Extension ring serve multiple functions within electronic systems, primarily facilitating the flow of electrical current. They ensure minimal resistance, allowing for efficient signal transmission and reducing energy loss.

High Performance
Features such as high conductivity, corrosion resistance, and thermal stability are crucial for maintaining performance under varying environmental conditions.

Withstand High Temperatures
The ability of extension ring to withstand high temperatures and resist oxidation is particularly important in industrial applications, where harsh conditions are prevalent.

Compact Structure
Its small size allows for quick installation, even in the smallest installation spaces, making it easier to transport and store.
Application
Extension rings are essential components in overhead power line fittings for voltages ranging from 1 to 20 KV. Extension rings are used to link clamps to insulators or connect insulators and ground wire clamps to tower arms or substation structures.
Production Process
The production process of PH extension ring needs to take into account the requirements of mechanical strength, dimensional accuracy, surface quality, etc. We will explain them in detail:
Material preparation
The main materials are carbon steel and alloy steel to ensure mechanical strength and corrosion resistance.
Material pretreatment
Clean the surface of the round steel and cut the round steel into fixed length billets according to the product size to ensure that the length tolerance meets the requirements.
Hot forging
Put the billet into the heating furnace and heat it to 1000-1200℃ to soften the steel for easy shaping. After multiple hammering or extrusion, it is gradually formed into a ring body and an arc-shaped connection structure is formed at both ends.
Cold forging
For smaller extension rings, the cold forging process can be directly used to shape the blank through die extrusion without heating.
Heat treatment
After annealing, quenching + tempering are performed, and hardness and mechanical properties tests are performed on the PH extension ring to ensure that it meets the requirements.
Surface treatment
Immerse in zinc liquid at 450-480℃ for 3-5 minutes to form a zinc-iron alloy layer and a pure zinc layer.
Extension Rings
Functionality
Normal extension rings are mainly for increasing the physical distance between components. Non - normal extension rings, on the other hand, can have additional functions like data transfer or adjustability.
Design Complexity
Normal extension rings have a simple tube - like design. Non - normal extension rings are more complex, with built - in electronics or adjustable mechanisms.
Cost
Normal extension rings are generally more affordable because of their simpler design and manufacturing process. Non - normal extension rings are more expensive due to the advanced features and materials used.
Application
Normal extension rings are suitable for a wide range of general applications. Non - normal extension rings are used in more specialized and high - precision applications.
Customization Process
Communicate Needs
We engage in in-depth discussions to understand your requirements and expectations. Provide us with the specifications you require.
Develop Solutions
We create custom adjusting plate solutions based on your needs, providing detailed designs and plans.
Contract Confirmation
We confirm design plans and contract details together to ensure shared understanding.
Manufacturing & Delivery
We start the manufacturing process and oversee progress to ensure timely production and delivery.
Final Acceptance
Together, we conduct the final acceptance to verify that the adjusting plates meet your quality standards and requirements.
Ongoing Support
After delivery, we provide maintenance and technical services to ensure long-term reliability. This helps keep your adjusting plates in optimal condition.
Quality Control
Checking the raw material after they reach our factory-- Incoming quality control ( IQC).
Checking the details before the production line operated.
Have full inspection and routing inspection during mass production--In process quality control(IPQC).
Checking the goods after they are finished-- Final quality control(FQC).
Shipping and Delivery
|
Lead Time |
Usually we can ship within 7-15 days for small quantity,and about 30 days for large quantity. |
|
Payment Term |
T/T,Western Union,Alipay,MoneyGram,and Paypal.This is negotiable. |
|
Shipping Method |
It could be shipped by sea,by air or by express(EMS, UPS, DHL, TNT, FEDEX and ect). Please confirm with us before placing orders. |
|
Packaging Details |
Packed in sponge+paper box+export wood cases,or according to your requirements. |
Video
FAQ
We're well-known as one of the leading extension ring manufacturers and suppliers in China. If you're going to buy cheap extension ring, welcome to get pricelist from our factory. All customized products are with high quality and low price.
PH 12 type Extension ring, PH 21 Extension Ring, PH type Extension ring