Expansion Screws

solar expansion screws.

Starwin solar is wholesale solar racking in China 

solar professional screws fix the rails and beams firmly 

1.Easy Installation.
The innovative solar rail and D-modules have greatly simplified the installation of PV modules.

The System can be installed with a single Hexagon Key and standard tool kits. 

Pre-assembled and pre-cut processes will highly prevent corrosion and save your installation time and labor cost.

2.Great Flexbilitity.
The  solar mounting system has mounting accessories designed for use on almost every roof and ground with excellent compatibility.Designed as a universal racking system,framed modules from all the popular manufacturers can be used.

3.High Accuracy.
Without the need for onsite cutting,the use of our unique rail extending allows the system to be installed with millimetre accuracy.

4.Maximum Lifespan:
All components are made of quality extruded aluminium, C-steel and stainless steel.The high corrosion resistance guarantees the maximum possible lifespan and is also completely recyclable.

5.Guaranteed Durability:
Starwin Solar provides a guarantee of 10 years on the durability of all components used.

Requirements to design and quote 

1) solar panel datasheet (L x W x T)

2) planed layout: ___row X ___nos modules

3) tile angle

4) roof type:  metal or tile or concrete

5) orientation of solar panel: portrait or landscape

6) wind load and snow load

Why Choose US

·    Design conformable to different on-roof project requirements

·    Fast and cost effective installation, easy to be assembled on different roof tops

·    Short in 7 days leading time

·    Wisely solutions for your solar PV projects

FAQ

Q  :  Can I have a sample order ?

A  :   Yes, we welcome sample order to test and check quality. Mixed samples are acceptable.

Q  :  What about the lead time?

A  :  Sample needs 3-5 days, mass production time needs 10~20 days for order quantity more than. 

Q  :  Do you have any MOQ limit ?

A  :  For normal products,we provide low MOQ, 1pc for sample checking is available.

Q  :  How do you ship the goods and how long does it take to arrive?

A  :  For small products,we usually ship by DHL, UPS, FedEx or TNT. It usually takes 3-7 days to arrive. For big orders,we usually ship by sea,it will take 7~30days to arrive, depend on distance.

Q  :  How to proceed an orders?

A  :  Firstly let us know your requirements or application.Secondly We quote according to your requirements or our suggestions.Thirdly customer confirms the samples and places deposit for formal order. 

Q  :  Is it OK to print my logo on products?

A  :   Yes. Please inform us formally before our production and confirm the design firstly based on our sample.

Q  :  Do you offer guarantee for the products?

A  :   Yes, we offer 10 years to solar mounting system.