SUNJ Power fittings

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SUNJ Power fittings ZHEJIANG SUNJ ELECTRIC CO.,LTD. established in China, with our factory in Liushi town Yueqing city China.

The products of group are more than 10series which include Cable connector, Parallel Groove clamps, Dead-end clamps, Anchor clamps, and so on.

08/09/2026

Dubai Exhibition Vlog is here! 🇦🇪✈️

From travel and booth setup to real customer meetings, this trip was full of energy, great conversations, and new business opportunities.

Thank you to everyone who visited SUNJ in Dubai.
We are excited to keep building stronger connections with partners around the world.

More connections.
More opportunities.
A brighter tomorrow.

08/09/2026

🤝 ABB × SUNJ | A New Chapter of Cooperation

We are pleased to announce that SUNJ has established a distribution partnership with ABB.

This collaboration represents more than a business relationship — it strengthens our connection in market development, distribution, and customer support.

Through this cooperation, SUNJ will continue to enhance its ability to provide customers with access to ABB products and solutions, supported by our sales, supply, and service capabilities.

We look forward to creating greater value for our customers and opening a new chapter in SUNJ's global development together.

Stronger connections. Greater possibilities.

05/09/2026

Can the socket fit the bolt? Yes.
Does that mean it's the correct socket? Not necessarily.
When the socket does not fully engage the shear bolt head, the contact area becomes smaller and the load can concentrate around the edges.
This may increase the chance of slipping or local bolt-head damage during installation.
Before tightening a mechanical connector, make sure the correct socket is fully seated on the bolt head.
Correct tools + correct installation = fewer avoidable problems on site.

03/09/2026

Shear bolt not breaking? Check before applying more force.

During the installation of a mechanical connector, a shear bolt that does not break as expected should not automatically mean “keep tightening.”

Before continuing, verify:

• The connector model matches the conductor range
• The conductor and internal components are correctly positioned
• The socket fully engages the bolt
• The tool remains properly aligned
• The specified tightening sequence is followed

Correct installation conditions are what allow the shear bolt system to work as designed.

Check first. Don’t keep forcing.

01/09/2026

What does a shear bolt connector installation actually look like on site?

This footage comes directly from a real cable installation environment.

After the conductor and connector position are confirmed, the installer continues the tightening process using the required tools and installation procedure.

For mechanical cable connections, field installation should not be treated as simply “tightening a few bolts.”

Product selection, conductor positioning, tool engagement and the tightening process all form part of the completed connection.

A closer look at how SUNJ Shear bolt connector is used under real field conditions.

27/08/2026

A look at a real cable connection being completed on site.
The process moves from conductor connection with a mechanical connector to heat-shrink insulation and final protection.
Each step may look simple on its own, but together they determine how the completed cable joint performs in actual service.
This is why we always like seeing our cable accessories where they really belong — in the field, in the hands of installers, completing real connections.

26/08/2026

Why should the bolts of a mechanical connector be tightened in a specified sequence?
A multi-bolt SUNJ Shear bolt connector uses several shear bolts to complete the conductor clamping process.
During installation, following the specified bolt sequence helps the clamping condition build progressively instead of treating every bolt as an independent tightening point.
That is why the correct procedure is not:
“Tighten whichever bolt is easiest to reach.”

25/08/2026

A closer look at a real SUNJ Shear bolt connector installation on site.
Once the conductor position and product selection have been confirmed, the installer uses the corresponding socket to tighten the shear bolts according to the required installation procedure.
What looks like a simple tightening operation actually depends on several details:
correct conductor position,
stable socket engagement,
controlled tightening,
and the correct shear sequence.
For cable accessories, installation quality is built one step at a time.
Real site footage. Real installation process.

21/08/2026

Does cutting off the bolts on a mechanical connecting pipe mean the connection is complete?
For sheared bolts, the condition of the cut surface after the shearing action is equally important.
A proper shear result leaves a flat surface without obvious sharp burrs or irregular edges.
With the correct model and conductor position, proper shearing also indicates that the designed tightening condition has been reached,
Therefore, when purchasing mechanical connecting pipes, don't just check if the bolts can be cut.

20/08/2026

A single mechanical connecting conduit can accommodate different conductor cross-sections within a certain range, provided that the conductor material, cross-sectional area, and structure meet the applicable range specified for that model, and that the internal gaskets or adaptable structures are correctly handled according to the specific conductor specifications during installation.
For example, in the 185–400 mm² range, conductors with smaller cross-sections (185–240 mm²) can retain the internal gaskets as instructed to create effective installation space suitable for that cross-section; conductors with larger cross-sections (300–400 mm²) should have the corresponding gaskets removed as instructed to free up sufficient space for the conductor. After correctly configuring the gaskets, proceed with conductor insertion, position confirmation, and bolt tightening.

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+8618367864137

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