Shockproof Hammers Electric Power Fittings Aluminum Alloy Stockbridge Damper
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Product Highlights
- Vibration Reduction Technology: Reduces wind-induced oscillations and prevents damage to overhead power lines.
- Customizable Material Options: Available in Steel with Galvanized surface finish for durability.
- Wide Conductor Range Coverage: Models JFR-1 to JFR-6 support conductor ranges from 7mm to 40mm.
- OEM Service Available: Logo customization accepted for orders with good quantity.
- Multiple Manufacturing Techniques: Produced using Forged, Stamping, and Casting methods for precision.
- Flexible Payment Terms: Accepts TT, Western Union, and L/C with 30% deposit and 70% balance.
- Fast Production Lead Time: Standard production takes 15 to 30 days depending on season.
- Global Shipping Solutions: Supports TNT, DHL, FEDEX, EMS, sea, and air freight options.
Product Attributes
- Customization
- Available
- Technics
- Forged, Stamping, Casting
- Usage
- Line Fittings
- Model NO.
- Damper
- Type
- Pull-Line Fitting
- Material
- Steel
- Surface
- Galvanized
- Application
- Manually Installed
- Purpose
- Pole Installation
- Transport Package
- Standard Exportation Carton
- Specification
- ASTM153
- Trademark
- None
- Origin
- China
- HS Code
- 7326
- Production Capacity
- 100000
- Package Size
- 40.00cm * 40.00cm * 50.00cm
- Package Gross Weight
- 40.000kg
Shipping
- Shipping Cost:
- Contact the supplier about freight and estimated delivery time.
Online Trading Protection
- Payment Guarantee
-
Platform-protected payments with refund support for eligible order issues.
- Platform Logistics
- Clearer shipment tracking with platform-supported logistics.
- Inspection Service
- Optional pre-shipment inspection for quality and quantity checks.
- After-Sales & Dispute Handling
- Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
Product Images of Shockproof Hammers Electric Power Fittings Aluminum Alloy Stockbridge Damper
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Product Description
Stockbridge dampers are devices used to reduce vibration and prevent damage to overhead power lines caused by wind-induced oscillations. They are named after their inventor, George H. Stockbridge, who patented the device in 1921.
A stock bridge damper consists of a weight suspended by a cable or rod attached to the power line. The weight oscillates out of phase with the power line, creating a counterbalancing force that reduces the amplitude of the power line's vibration. The damper's weight is carefully chosen to match the frequency of the line's vibration to maximize its effectiveness.
Stockbridge dampers are commonly used in transmission and distribution lines that are subject to high wind speeds or spanning long distances. The dampers are installed periodically along the power line to prevent the build-up of high-amplitude vibration that can lead to damage or failure of the line.
| Stock No. | Conductor Range mm | Dimmension | Weight | |||||
| A | B | C | D | E | F | Kg | ||
| JFR-1 | 7-12 | 138 | 118 | 429 | 50 | 81 | 48 | 2.54 |
| JFR-2 | 11-20 | 138 | 118 | 429 | 50 | 81 | 48 | 2.61 |
| JFR-3 | 18-28 | 167 | 146 | 505 | 60 | 91 | 57 | 5 |
| JFR-4 | 26-36 | 218 | 163 | 550 | 60 | 97 | 64 | 6 |
| JFR-5 | 33-38 | 218 | 163 | 550 | 70 | 127 | 64 | 7.9 |
| JFR-6 | 35-40 | 325 | 325 | 650 | 70 | 127 | 74 | 11 |

Beijing Winner Electric Energy Co., Ltd is located in Beijing China, integrating not only R&D and manufacturing, but also trade and top aftersales services as well. We're proud of having two excellent subsidiary factories, which consolidated our leading position of transmission and distribution services provider. Our products have been exported to many countries all over the world during the past 15 years.
We produce power fittings, cable accessories, insulators, primary and secondary fusion pole-mounted circuit breakers, lightning arresters, solar energy, and other new energy transmission and distribution equipment products, as well as related customized products.
At Winner Power, we never compromise on quality. Our stringent standards ensure that you receive reliable and efficient products every time. With our industry expertise and experience, we are your preferred choice for meeting all your power transmission and distribution needs.
Our commitment to quality and customer satisfaction makes us a trusted partner for companies worldwide. We look forward to discussing how our products can support your projects and meet your specific requirements.



Packing&Shipping
1. Are you a factory or trading company?
We are a Trade company.
2. Where is your factory located? How can I visit there?
Our factory is located in Handan City,Hebei Province, China.
All our clients,from home or abroad, are warmly welcome to visit us!
3. What's the payment term?
We accept TT, 30% deposit and 70% balance agaisnt copy of BL, Western Union, L/C is ok!
4. How's the delivery time?
Usually it will take about 15~30 days for production.
5. Tell me the standard of package?
For the small capacity, it uses carton with pallet or according to your requirements.
6. Could you offer Form A or C/O etc. certificate of origin ?
It is totally not a problem.
7. Would you accept to use our logo ?
If you have a good quantity,it is absolutely no problem to do OEM.
8. How about the transport?
If the number of goods is small we usually use TNT,DHL,FEDEX,EMS and some express you offered.
If the number of the goods is big usually we use the FWD you offered or we provided. Either by sea or by air is OK.
About the Supplier
This supplier has been audited by SGS. Verify the report on the official SGS website with ID "QIP-ASR256217". Items marked "" are certified.
Company Profile
Beijing Winner Electric Energy Co., Ltd is located in Beijing China, integrating not only R&D and manufacturing, but also trade and top aftersales services as well. We're proud of having two excellent subsidiary factories, which consolidated our leading position of transmission and distribution services provider. Our products have been exported to many countries all over the world during the past 15 years.
We produce power fittings, cable accessories, insulators, primary and secondary fusion pole-mounted circuit breakers, lightning arresters, solar energy, and other new energy transmission and distribution equipment products, as well as related customized products.
At Winner Power, we never compromise on quality. Our stringent standards ensure that you receive reliable and efficient products every time. With our industry expertise and experience, we are your preferred choice for meeting all your power transmission and distribution needs.
Our commitment to quality and customer satisfaction makes us a trusted partner for companies worldwide. We look forward to discussing how our products can support your projects and meet your specific requirements.
About Our Factory & Business Background
-
Business Type
- Manufacturer/Factory & Trading Company
- Address
- No. 710, Building 3, Fanyang Road No. 51, Plaza, Fengtai District, Beijing, China
-
Registered Capital
- 300,000 RMB
-
Terms of Payment
- LC, T/T, D/P, PayPal, Western Union, Small-amount payment
-
International Commercial Terms(Incoterms)
- FOB, CIF, CFR, EXW
-
Average Lead Time
-
Peak Season Lead Time: one month
Off Season Lead Time: one month -
Nearest Port
- Tianjin Port
-
Minimum Order Quantity
- 2000 pcs
-
Supply Chain Partners
- 5
Our Production Capability & Technical Expertise
- Main Products
- Socket Eye, Dead End Loop Clamp, Strain Clamp, Lead Pin, Polymer Insulator, Anchor Rod, Thimble Eye, Hot Link, Mounting Bracket, Alley Arm
-
Production Lines
- 4
-
Production Machines
- CNC Machining Center, Cutting Machine, Punching Machine, Punching Machine, Forging and Pressing Machine, Wire Cutting Machine, Punching Macchine
-
QA/QC inspectors
- 5 people
-
Inspection Type for Finished Products
- 100% inspection(Visual inspection & Function inspection)
-
Inspection Method for Finished Products
- Have instructions and uniformly followed
-
Customization Options
- Flexible customization, Minor Customization, Full Customization, Customization from Designs, Customization from Samples
-
ODM Service Available
- Yes
-
R&D Engineers
- 1 people
-
Traceability of Raw Materials
- Yes
Our Industry Experience & Global Business Record
-
Export Year
- 1 year
-
Main Markets
- South America, Southeast Asia/ Mideast, Africa
-
Repeat Buyers Choice
- 80%~100%
-
Number of Foreign Trading Staff
- 9
-
Overseas Agent/Branch
- No
-
New Products Launched in Last year
- No
Our Certifications, Standards & Industry Recognition
-
Management System Certification
- ISO9001:2015
FAQ
- Are you a factory or trading company?
- We are a Trade company.
- Where is your factory located? How can I visit there?
- Our factory is located in Handan City,Hebei Province, China. All our clients,from home or abroad, are warmly welcome to visit us!
- What's the payment term?
- We accept TT, 30% deposit and 70% balance agaisnt copy of BL, Western Union, L/C is ok!
- How's the delivery time?
- Usually it will take about 15~30 days for production.
- Tell me the standard of package?
- For the small capacity, it uses carton with pallet or according to your requirements.
- Could you offer Form A or C/O etc. certificate of origin ?
- It is totally not a problem.
- Would you accept to use our logo ?
- If you have a good quantity,it is absolutely no problem to do OEM.
- How about the transport?
- If the number of goods is small we usually use TNT,DHL,FEDEX,EMS and some express you offered. If the number of the goods is big usually we use the FWD you offered or we provided. Either by sea or by air is OK.
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