MacroStone

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Medium-Voltage Power Manufacturer

22/09/2026

Holiday Notice for Mid‑Autumn Festival and National Day

Please be advised that our office will observe China’s statutory public holidays as follows:

- Mid‑Autumn Festival: September 25
- National Day Holiday: October 1 to October 7

Should you have any urgent business matters while our team is on holiday, please contact us by email: [email protected]
We will respond to your request as soon as possible.

Thank you for your understanding and continued support. We truly value our partnership and look forward to serving you even better after the break. If there is anything we can assist you with before the holiday, please feel free to reach out.

21/09/2026

The QJ9-50 / QJ9-80 Double Float Series Gas Relay is a key protection device designed for oil-immersed transformers.

Through reliable mechanical structures and sensitive detection technologies, it can respond quickly, providing effective protection for the safe and stable operation of the transformer.

🔹 The internal double float ball structure can precisely detect various types of faults.
🔹 It has three signal outputs: light gas, heavy gas, and oil shortage. The performance is more safe and reliable.

📩 Contact us for more information.

20/09/2026

We're excited to showcase our heat shrink products, now on display:
🔹 Three-core outdoor termination
🔹 Single wall& medium wall&heavy wall tube
🔹 Sealing Cap
🔹 Breakout, and more

🏭 Our heat-shrink production workshop features comprehensive production lines, in-house irradiation capabilities, and an independent electrical performance lab – ensuring top quality and reliability.

If you have heat shrink needs, feel free to reach out to us!

18/09/2026

⚙️ Production of bimetal lugs in progress

We start with premium copper raw materials and apply rigorous manufacturing processes to produce reliable bimetallic terminals.

Our bimetal terminals are precision-manufactured to provide stable conductivity for medium voltage power connections.
Custom sizes available for your power infrastructure projects.

We manufacture a full range of medium voltage cable accessories, welcome your inquiries for projects.

17/09/2026

Buchholz Relay: Reliable Protection for Oil-Immersed Transformers

What makes it stand out?
- Dual-float design for both light and heavy gas detection.
- Stable signal output with high sensitivity.
- Compact structure for easy installation and flexible connection.
- Long service life, even in harsh environments.

Want to know more? We are always happy to hear from you.

16/09/2026

46kV Vise Clamp Line Post Insulator⚡️
The integrated vise clamp cuts installation time and eliminates loose hardware.

🔹 Material: High-grade Polymer Composite – UV & track resistant
🔹 Leakage Distance: 887mm (34.9 in) – ideal for polluted areas
🔹 Positive Impulse: 240kV – lightning-ready performance
🔹 Tensile Load: 22.2kN – dead-end & angle pole capable
🔹 Max Cantilever Load: 6kN – handles ice, wind & heavy conductors
Contact us for the datasheet and drawing

15/09/2026

Today's Focus: 24kV / 630A Apparatus Bushing.

It is made by high-quality epoxy resin and good metal components, featuring excellent mechanical and electrical properties. Moreover, it fully complies with the requirements of IEC 60137 standard.

We can offer three lengths: short, standard and extended. Additionally, we provide two fixing methods to meet your application requirements.

📩 Contact us for more information.

14/09/2026

As the backbone of cold shrink products, the support strip holds cold shrink components in their pre-expanded state prior to installation, facilitating straightforward, rapid field installation.

Upon extraction, it enables uniform contraction of the cold shrink material to achieve intimate contact with the cable.

This vital structural element delivers dependable sealing consistency and long-run operational stability for medium-voltage cable networks.

📧Contact us for more information!

11/09/2026

Packing in Progress! ⚡

Our factory is busy packing and preparing another batch of MV cable accessories for shipment.
Each order is carefully packed before leaving our premises. We prioritize product protection, packaging workmanship and loading efficiency, guaranteeing that goods reach customers safely and in good condition.

Our main cable accessory products include:
🔹 Cold Shrink Cable Accessories
🔹 Heat Shrink Cable Accessories
🔹 Cable Lugs & Terminals
🔹 Separable Connectors
🔹 Other MV Cable Accessories

With 30 years of manufacturing experience, we provide stable quality, competitive factory prices and reliable supply for customers in different markets.
Please feel free to contact me for any purchasing inquiries or product interests.

09/09/2026

Reliable products, from reliable partners.

Macro Stone is committed to providing high-quality separable connectors, cold shrink products, lugs and other series of products for the global power system, fully supporting the construction of power facilities.

From production to delivery, we always prioritize quality, reliability and timely delivery, providing a solid guarantee for our international partners.

Address

Dalian
116000

Website

http://macrostone.com.cn/

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