What cable management products does Qiongkai manufacture?

Qiongkai manufactures wire mesh (basket) cable trays, perforated and solid-bottom cable trays, ladder trays, heavy-duty series trays, cable trunking, conduit, tray accessories, strut channel in 41x21, 41x41, 41x62 and 41x82 profiles, seismic brackets and light-gauge metal stud framing.

Which finish should I choose: pre-galvanized, hot-dip galvanized, stainless steel or FRP?

Pre-galvanized and electro-galvanized steel suit dry indoor areas. Hot-dip galvanized steel is the common choice for outdoor and industrial plants. Stainless steel 304 suits food and clean environments, while 316/316L and FRP are preferred for coastal, offshore and chemical exposure. Our engineers can review your site conditions before you finalize the specification.

Can Qiongkai produce custom sizes and non-standard profiles?

Yes. With 12 assembly lines and about 60 heavy-duty machines across 3 factories, we produce custom widths, side heights, thicknesses, hole patterns and profiled sections, including a custom profiled section solution for an offshore LNG project in Qatar.

Which projects and markets has Qiongkai supplied?

References include corrosion-resistant CT series cable trunking for Shanghai Hongqiao International Airport, FRP cable trays for extreme conditions in Qatar and Thailand, FRP-lined steel trays for an outdoor project in Thailand, a heavy-duty tray solution for a large pig farm in Paraguay and HDG cable tray shipments to Italy.

How can I get the product catalog and technical drawings?

Use the Request a Catalog page to receive the latest Qiongkai catalog, or contact our export team by email at adam@shqiongkai.com or WhatsApp +86 13122439322 for drawings, load data and specification support.

Wholesale Pre Galvanized Steel Conduit Supplier Factory Direct Bulk Pre Galvanized Electrical Conduit Pipe Manufacturer and Exporter

Product Info

Brand	Qiongkai
Model Tag.	CD-
Origin	Shanghai, China
Product Name	Conduit
Material	Steel / Stainless Steel / Aluminum
Surface Treatment	Galvanized / Powder Coating
Color	Customization
Diameter	2cm / Customization
Length	3.95m
OEM	Available (√)
Thickness	0.5-3.0mm / Customized

Shipping and Delivery Info

Insurance	Customizable
Loading Port	Shanghai, Tianjin
Selling Units	Single Item
Production Capacity	5000
Price Terms	EXW, FOB, CIF, CFR
Delivery Time	25 Days
After-sales	Online technical support
Free Sample	Available (√)

Production Process

Usually, high-quality steel sheets are selected first and then undergo a galvanizing process. The galvanizing can be either hot-dip galvanizing or electro-galvanizing. Hot-dip galvanized conduit has a thicker and more uniform zinc layer to provide better corrosion resistance. Electro-galvanized conduit has a relatively thinner zinc layer but offers a smoother surface.

Features

Excellent Corrosion Resistance

The zinc layer on the surface of the galvanized electrical conduit effectively isolates the steel from the surrounding environment, preventing harmness from moisture, oxygen, and other substances. This makes it suitable for use in various environments, especially in humid or corrosive environments such as basements, chemical plants, etc.

Good Mechanical Strength

The galvanized electrical conduit is highly hard and strong, able to withstand a certain degree of external pressure and impact, protecting the wires and cables inside from being crushed or damaged.

Good Electrical Conductivity

Although its main function is to protect wires and cables, the galvanized electrical conduit itself also has good electrical conductivity. In some cases, it can also play a role in grounding and lightning protection.

Easy Installation

The purpose is to protect electrical wires and cables. It provides a secure and protected passageway for the wires and cables, shielding them from mechanical damage, moisture, chemical corrosion, and other potential hazards. This helps to prolong the service life of the wires and cables and ensures the safe and reliable operation of the electrical system.

Main Function

It is widely used in various electrical system projects for residential, commercial, and industrial buildings. It is also extensively used in infrastructure projects like subways, railways, and bridges, as well as industrial production lines and power distribution systems.

Application Scenarios

It is widely used in various building electrical installation projects, such as residential buildings, commercial buildings and industrial plants. It is also extensively used in infrastructure projects like subways, railways and bridges, as well as in industrial production lines and power distribution systems.

Parameter

Diameter	DN16mm, DN20mm, DN25mm, DN30mm, etc.
Length	3.95m
Thickness	0.6mm-1.5mm customization.

Frequently Asked Questions

Q What materials and surface treatments are available for the conduit?

The conduits are manufactured from high-quality steel, stainless steel, or aluminum. Surface finish treatments include hot-dip galvanizing, electro-galvanizing, and protective powder coating depending on application requirements.

Q What is the difference between hot-dip and electro-galvanized conduits?

Hot-dip galvanized conduits feature a thicker, uniform zinc layer providing exceptional corrosion resistance in harsh outdoor or chemical environments. Electro-galvanized conduits offer a smoother surface profile with a thinner zinc layer suitable for standard environments.

Q Can the diameter, length, and wall thickness be customized?

Yes. Standard diameters include DN16mm, DN20mm, DN25mm, DN30mm, and lengths typically measure 3.95m. We support OEM production and customized thickness ranges from 0.5mm to 3.0mm.

Q Do you provide free samples prior to bulk orders?

Yes, free samples are available upon request to verify specifications, mechanical strength, and galvanizing quality before placing wholesale volume orders.

Q What are the standard delivery times and loading ports?

The average production and delivery lead time is approximately 25 days. Shipments are mainly dispatched from Shanghai or Tianjin ports under EXW, FOB, CIF, or CFR terms.

Q Where are these electrical conduits commonly used?

They are widely applied across residential, commercial, and industrial facilities, as well as critical infrastructure projects including subways, railways, bridges, and power distribution systems to safeguard cable wiring.