What steel material do you use for the brackets?
We adopt Q355B high‑strength steel for ground brackets, Q235B for light roof brackets, all from major domestic steel mills with complete mill certificates.
What’s the zinc coating thickness? Hot‑dip galvanized or Magnesium‑Aluminum‑Zinc?
Standard hot‑dip galvanizing zinc layer ≥65μm; zinc‑aluminum‑magnesium coating ≥80μm for coastal corrosive areas, two surface treatments optional.
How many hours salt spray test can your product pass?
Hot‑dip galvanized products pass 500h neutral salt spray test; Zn‑Al‑Mg brackets can reach 2000h.
What’s the anti‑corrosion warranty period?
15 years warranty for hot‑dip galvanized brackets, 25 years for Zn‑Al‑Mg series.
Are there any anti‑rust treatment for bolts and accessories?
All bolts and clamps are hot‑dip galvanized or Dacromet coated to avoid rust locking.
Can your brackets be used in coastal high‑salt areas?
Yes, we recommend our Zn‑Al‑Mg mounting system for seaside projects with strong chloride resistance.
What wind load and snow load can your structure bear?
We customize wind and snow load parameters according to local meteorological data, max wind load up to 60m/s, max snow load 2.0kN/㎡.
Can you provide structural calculation report and load test report?
Yes, we can provide official structural calculation reports and third‑party mechanical test reports for customs and project approval.
What’s the thickness tolerance of your C‑channel steel?
Strict minus tolerance controlled within 0.05mm, no thin wall cutting, actual weight matches theoretical weight.
Is the steel Q355 high strength steel or Q235?
Ground large power stations use Q355B; small household roof systems use Q235B, can be adjusted as customer’s request.
Does your support system meet local construction standards?
Our design complies with international steel structure standards, and we can adjust drawings to match CIS/EU local building codes.
What size solar panels can your brackets fit?
Compatible with all mainstream modules from 540W to 700W+ large‑size bifacial panels.
Support portrait and landscape installation of modules?
Both vertical and horizontal installation are available with adjustable clamps.
What tilt angles can this mounting system adjust?
Roof brackets 0°–30° adjustable; ground brackets 10°–60° adjustable.
Suitable for flat ground, sloped hills, color steel roof?
We have separate solutions for flat land, mountain slopes, tin roofs, agrivoltaic and fishery‑solar projects.
Do you supply all matching accessories (clamps, bolts, bases)?
Full set supporting accessories included, no extra purchase needed.
Is roof fixture non‑penetrating, no damage to waterproof layer?
Our tin roof clamps are non‑punching design, completely protect roof waterproof layer.
Do you have EAC / GOST certificate for CIS market?
Yes, we have complete EAC customs union certification for CIS countries, supporting smooth customs clearance.
Can you provide CE certification for Europe?
CE certification is available for European market, together with relevant test reports.
Could you offer factory test reports, mill certificates?
All documents including mill sheets, salt spray reports, mechanical test reports can be provided for free.
Are your products compliant with local import inspection standards?
Our products pass standard import inspection of CIS, Southeast Asia and European countries, all supporting documents complete.
What’s your unit price based on which weight or wattage?
We quote by tonnage, and also convert price per MW for customer reference.
What’s the theoretical weight per MW of your bracket system?
About 25–40 tons per MW, different weight for ground/roof systems based on snow and wind load.
Is the weight actual weight, no virtual weight?
Full actual weight, overloading inspection is acceptable, no false weight marking.
What’s the price adjustment rule when steel raw material fluctuates?
Price follows the latest steel market price, we update quotation every week and inform clients of price changes in advance.
What’s your MOQ (minimum order quantity)?
MOQ is 1 container (20GP), small trial orders can be negotiated.
Can you offer special discount for bulk large orders?
Yes, we provide tiered discount for orders above 5MW / 10MW.
How do you pack the steel brackets to avoid coating damage?
Products wrapped with plastic film, bundled with steel strips, wooden pallets to avoid collision during transportation.
What’s your production lead time after receiving deposit?
Normal lead time 7–15 working days based on order quantity.
Can you deliver goods to our designated port?
We support FOB Shanghai/Ningbo, CFR and CIF terms to any target port.
What’s the loading quantity per 20GP / 40HQ container?
About 2MW for 20GP, 4–5MW for 40HQ.
Can you arrange mixed shipment with different types of brackets?
Mixed loading of different bracket types and accessories is acceptable.
What’s your regular payment term? T/T or L/C?
Main term 30% T/T deposit, balance against copy of B/L;
How much deposit do we need to pay in advance?
30% deposit before mass production.
Do you accept RMB settlement for CIS clients?
Yes, we support RMB cross‑border settlement for CIS buyers.
Can we pay partial balance against copy of bill of lading?
Yes, this is our standard cooperation term for long‑term partners.
How many years warranty for your whole mounting system?
15–25 years anti‑corrosion warranty based on surface treatment, 10‑year structural warranty.
If coating peeling or deformation occurs, how to solve it?
If quality problems confirmed, we produce and resend replacement goods free of charge.
Do you provide installation drawing and technical guidance?
We supply free CAD installation drawings, detailed installation manuals and video tutorials.
Can you send engineers to our site for installation guidance?
Overseas technical support can be arranged for large MW orders, travel cost borne by buyer.
Can we customize special size, thickness and color?
Custom size, wall thickness and surface coating are all available as project drawings.
Can you design a complete support drawing according to our project parameters?
Our professional engineering team can complete full drawing design free of charge after receiving your project data.
Can you produce agricultural complementary /fishery complementary special brackets?
We have mature agrivoltaic and aqua‑solar bracket solutions for large ground power stations.
Are you manufacturer or trading company?
We are direct manufacturer with our own production workshop, no middleman markup.
What’s your annual production capacity?
Annual production capacity reaches over 2GW solar mounting brackets.
Have you exported brackets to our country before?
We have rich export experience to CIS, Southeast Asia and Europe, can provide local project photos and references.
Can you provide pictures and videos of your factory production line?
Factory workshop, production line and finished product videos can be sent immediately upon request.
