The Sun pre-galvanized (GI) cable ladder is fabricated directly from zinc-coated (GI) sheet steel for indoor M&E systems and dry environments. It needs neither painting nor post-fabrication galvanizing, providing cost and delivery-time advantages.
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What is a pre-galvanized cable ladder?
Pre-galvanized steel is coated with zinc before it is cut, punched, formed and welded into a cable ladder. Its bright metallic surface needs no finishing paint. It is an economical choice for factories, technical rooms, shopping centres, basements and cable routes under cover.
- Advantages: reasonable cost, fast production, a clean surface and no painting step.
- Preferred scope: indoors, in well-ventilated areas with low humidity and limited corrosive exposure.
- Note: cut edges and weld areas require suitable treatment. For outdoor or corrosive environments, use hot-dip galvanized cable ladder.
Pre-galvanized cable-ladder specifications
| Parameter | Common options |
|---|---|
| Width W | 100–1000 mm |
| Height H | 50–200 mm |
| Length L | 2.5 m or 3 m per length; made to order |
| Thickness | 1,0; 1,2; 1,5; 2,0; 2,5 mm |
| Material | GI pre-galvanized steel |
| Fittings | Horizontal and vertical bends, tees, crosses, reducers, joints and supports |
Thickness should not be selected from ladder width alone. Consider cable load, hanger spacing, number of routes and the project’s spare-capacity requirements together.
Pre-galvanized steel vs hot-dip galvanizing
| Criterion | GI pre-galvanized steel | Hot-dip galvanizing |
|---|---|---|
| When zinc is applied | Steel sheet is galvanized before fabrication | Components are fully fabricated before zinc immersion |
| Surface | Bright, relatively flat and uniform | Thicker coating with the characteristic immersed finish |
| Preferred environment | Indoor, dry and sheltered | Outdoor and higher-corrosion environments |
| Cost and lead time | Economical, quick lead time | Higher processing cost and time |
These terms should not be interchanged in a quotation. Specify either “GI pre-galvanized steel” or “post-fabrication hot-dip galvanizing” in the enquiry.
Fabrication and quality control
- Check incoming material and thickness against the requirement.
- Cut, punch and form using CNC equipment.
- Weld cross members, treat fabricated areas and inspect welds.
- Check dimensions, straightness, joint-hole positions and assembly fit.
- Pack and classify by project route or product code.
Fittings and installation drawings
Straight ladders should be ordered with matching splice plates, bolts and directional fittings. Branch points may use horizontal bends, risers, drop-outs, tees, crosses or reducers. Refer to cable ladder drawings and fittings to determine dimensions and ordering codes.
Quick comparison of three common options
| Type | Best suited for | Key feature |
|---|---|---|
| Powder coating | Indoor where colour is needed | Attractive, easy route identification |
| Pre-galvanized steel | Indoor, cost-optimised | Quick delivery, no painting required |
| Hot-dip galvanizing | Outdoor, corrosive environments | Higher surface protection |
Selection criteria pre-galvanized cable ladder
When selecting a pre-galvanized cable ladder, check cable load, support spacing, sheet thickness and installation environment. The pre-galvanized cable ladder specification should coordinate with fittings and supports. Ordering pre-galvanized cable ladders to drawings improves control of quantities, schedule and installation cost.
Quotation pre-galvanized cable ladder
Price depends on W×H, sheet thickness, length, design load, quantity, fitting type and delivery location. A bill of quantities or CAD drawing helps The Sun verify the specification and quote more accurately.
Contact The Sun: Zalo/Mobile 0903 988 018 hoặc 0903 988 010.
Order pre-galvanized cable ladders from The Sun
The Sun manufactures pre-galvanized cable ladders to project bills of quantities and drawings. Each batch of pre-galvanized cable ladders is checked before delivery; customers can order straight ladders and matching pre-galvanized cable-ladder fittings together.
Pre-galvanized material and zinc coating
The Sun commonly uses Hoa Sen pre-galvanized sheet or an equivalent material according to project requirements and availability. Coating mass, steel grade and thickness tolerance are confirmed against the manufacturer’s batch CO/CQ; no fixed coating value applies to every order. Official documentation from Hoa Sen Group states that galvanized sheet is produced to JIS G3302 and equivalent standards such as ASTM A653/A653M.
When requesting a quotation, specify base-steel thickness, desired coating mass or grade and CO/CQ requirements. The Sun will verify the actual material before confirming production of pre-galvanized cable ladders.
Reference price list for pre-galvanized cable ladders
Reference prices per metre, excluding VAT. The prices below exclude cable-ladder covers; covers and fittings are quoted separately by specification. These reference factory prices may change with material costs, quantity, drawings, material requirements and surface finish at the time of order. Contact us to confirm pricing, transport and lead time.
| Dimensions (Width × Height × Thickness) | Product code | Price (VND/m) |
|---|---|---|
| 100x50x1 | TC-100x50x1-KN-LN1-TTK | 61,000 |
| 100x50x1.2 | TC-100x50x1.2-KN-LN1-TTK | 70,000 |
| 200x50x1.2 | TC-200x50x1.2-KN-LN1-TTK | 79,000 |
| 200x50x1.5 | TC-200x50x1.5-KN-LN1-TTK | 94,000 |
| 200x100x1 | TC-200x100x1-KN-LN1-TTK | 96,000 |
| 200x100x1.2 | TC-200x100x1.2-KN-LN1-TTK | 109,000 |
| 200x100x1.5 | TC-200x100x1.5-KN-LN1-TTK | 130,000 |
| 200x100x2 | TC-200x100x2-KN-LN1-TTK | 164,000 |
| 250x100x1.2 | TC-250x100x1.2-KN-LN1-TTK | 114,000 |
| 250x100x1.5 | TC-250x100x1.5-KN-LN1-TTK | 135,000 |
| 250x100x2 | TC-250x100x2-KN-LN1-TTK | 171,000 |
| 300x100x1.2 | TC-300x100x1.2-KN-LN1-TTK | 119,000 |
| 300x100x1.5 | TC-300x100x1.5-KN-LN1-TTK | 141,000 |
| 300x100x2 | TC-300x100x2-KN-LN1-TTK | 177,000 |
| 400x100x1.2 | TC-400x100x1.2-KN-LN1-TTK | 128,000 |
| 400x100x1.5 | TC-400x100x1.5-KN-LN1-TTK | 151,000 |
| 400x100x2 | TC-400x100x2-KN-LN1-TTK | 191,000 |
| 500x100x1.5 | TC-500x100x1.5-KN-LN1-TTK | 162,000 |
| 500x100x2 | TC-500x100x2-KN-LN1-TTK | 205,000 |
| 600x100x1.5 | TC-600x100x1.5-KN-LN1-TTK | 173,000 |
| 600x100x2 | TC-600x100x2-KN-LN1-TTK | 218,000 |
| 800x100x2 | TC-800x100x2-KN-LN1-TTK | 246,000 |
| 1000x100x2 | TC-1000x100x2-KN-LN1-TTK | 273,000 |
Note: the table lists common sizes only. The Sun manufactures other dimensions and thicknesses according to the technical documentation.
Frequently asked questions
Does pre-galvanized cable ladder require painting?
Usually not, because the material already has zinc protection. If the project requires colour or route identification, consider the powder-coated range.
Should pre-galvanized cable ladders be used outdoors?
They are not preferred for locations directly exposed to weather or high corrosion. Hot-dip galvanizing is more suitable.
Is production faster than hot-dip galvanizing?
Usually yes, because there is no post-fabrication transport and zinc-immersion step. The actual schedule depends on quantity and specification.