The PT type Adjusting Plate, also called a sag adjuster plate, is a link fitting used in overhead electrical transmission systems to connect clamps to insulators or link insulators and ground wire clamps to tower arms and support structures. It enables precise control over conductor sag and facilitates proper alignment and tension.
Manufactured from hot-dip galvanized steel with stainless steel cotter pins, the plate provides corrosion resistance and durability in harsh environmental conditions. Multiple holes on its surface allow versatile installation options and ease of adjustment. Available models include PT-7 through PT-60, with dimensions spanning lengths from 45 mm to 180 mm and widths from 16 mm to 51 mm. Rated failure loads range from 70 kN to 600 kN, and weights vary between 2 kg and 34.6 kg.
The plate is employed in overhead power line and substation installations to link insulator chains to poles or towers, connect suspension or tension clamps with insulator chains, and maintain optimal conductor tension and alignment. It supports the integrity and safety of electrical transmission systems under varying environmental conditions and can be reused if undamaged, with regular inspections recommended to maintain functionality.
PT Type Adjusting Plate Manufacturer
Company Philosophy
At RaxPower, our core values of Passion, Honesty, Sound services, Keen cooperation and Development drive us to be a reliable global partner in the power industry.
Product Overview
Our PT type adjusting plate is engineered for high-quality and durable performance in various electrical power applications. It serves as a precise link fitting for overhead line systems, connecting clamps to insulators or other components with reliability and ease of installation.
Our Expertise
Established in 2003 and located in Hebei Province, China, RaxPower has 21 years of manufacturing and exporting experience. With 17,000 square meters of production workshops and over 170 employees, including skilled engineers and technicians, we utilize advanced hot forging technology to ensure our adjust plates offer greater strength, accurate sizing, and long-term durability.
Global Services
We provide OEM and custom solutions tailored to meet regional standards, supported by a mature network that ensures efficient delivery to projects worldwide. Our commitment to keen cooperation means we adapt to your specific requirements.
Quality Assurance
Quality is paramount: we implement strict control measures, from raw material selection to multi-stage testing. Our automated machining, hot-dip galvanizing per ISO standards, and comprehensive load testing guarantee that every PT type adjusting plate meets high performance criteria, with products passing SGS tests for reliability.
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| Model | b (mm) | C (mm) | L1 (mm) | L2 (mm) | L3 (mm) | ∅ (mm) | M (mm) | Rated Failure Load (kN) | Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|
| PT-7 | 16 | 20 | 60 | 45 | 45 | 18 | 16 | 70 | 2.00 |
| PT-10 | 16 | 20 | 65 | 50 | 50 | 20 | 18 | 100 | 2.90 |
| PT-12 | 16 | 20 | 75 | 60 | 75 | 24 | 22 | 120 | 5.20 |
| PT-16 | 18 | 22 | 80 | 70 | 80 | 26 | 24 | 160 | 7.00 |
| PT-21 | 26 | 30 | 70 | 70 | 90 | 30 | 27 | 210 | 10.14 |
| PT-30 | 32 | 38 | 80 | 80 | 100 | 39 | 36 | 300 | 14.00 |
| PT-50 | 38 | 40 | 160 | 160 | 80 | 45 | 42 | 500 | 24.60 |
| PT-60 | 42 | 44 | 180 | 180 | 90 | 51 | 48 | 600 | 34.60 |
Frequently Asked Questions (FAQS)
What is a PT type adjusting plate?
A PT type adjusting plate is a link fitting used in overhead line accessories to connect clamps to insulators, or to link insulators and ground wire clamps to tower arms or subjection structures, allowing for adjustment of conductor sag to ensure optimal tension and alignment.
What certifications do your PT type adjusting plates have?
RaxPower's PT type adjusting plates are certified with ISO, CE, BV, and SGS, ensuring quality, compliance with international standards, and reliability for utility grid applications.
What materials are PT type adjusting plates made from?
The cotter pins are made from stainless steel, and the other parts are constructed from hot-dip galvanized steel, providing durability and resistance to harsh environmental conditions.
What standard sizes are available for PT type adjusting plates?
Standard sizes include models PT-7, PT-10, PT-12, PT-16, PT-20, PT-30, PT-50, and PT-60, with varying dimensions and rated failure loads. For example, PT-7 has dimensions L1=45mm, L2=60mm, M=16, and a rated failure load of 70kN.
How do I install a PT type adjusting plate?
Connect the plate to the insulator string and conductor using appropriate hardware. Adjust the length as needed to achieve the desired sag levels, then secure all connections tightly to prevent movement during operation.
Can PT type adjusting plates be reused?
Yes, they can be reused if not damaged or excessively worn. Regular inspection is recommended, and replacement is advised if any signs of wear or damage are present.
What warranty do you offer on PT type adjusting plates?
Our products undergo strict quality control and come with a 1-year warranty to guarantee long-term reliability.
What is your lead time for orders?
Standard models are typically in stock. For bulk orders, we require approximately 15 days to ensure on-time delivery.
Do you provide custom manufacturing services?
Yes, we offer OEM services and can customize products according to your specific requirements, including sizes and specifications for your project needs.
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