Address of reputable high-quality Omega purlin production workshop

29 September, 2026

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You are looking for Omega purlin at factory price, stable quality, meeting the correct technical specifications for workshop buildings, pre-engineered steel houses or light frame systems? This article fully summarizes knowledge from concept, applications, technical specifications, reference price list to selection criteria and comparison with other popular types of purlins. The content is built clearly, easy to understand to help you quickly grasp and choose the suitable product.

Omega Purlin Profile

Omega purlin (also known as Omega purlin or hat section/top-hat/batten) is a type of cold-formed steel section with a cross-section in the shape of the letter Ω (Omega). This design forms a “hat” with two flanges and a flat web, providing higher rigidity compared to some simple profiles in light structure applications.

The product is usually produced from galvanized steel sheet or black steel, common thickness from 1.0–3.0 mm. Thanks to the characteristic shape, Omega purlin distributes load evenly, has good anti-torsion and is easy to connect with panel sheets, roofing sheets or secondary frames. Viet Son Mechanical specializes in roll-forming Omega according to requirements, ensuring high accuracy, suitable for many construction specifications.

omega batten tophat purlin profile

Applications of Omega Purlin

Omega purlin is widely used in constructions requiring light structure, aesthetics and fast construction:

Roof frame system and roof purlin: Used as main or secondary purlin for workshops, warehouses, pre-engineered houses, industrial canopies.
Wall, partition and ceiling frames: Supporting insulation panel sheets, suspended ceilings, interior partitions or secondary frame systems of civil and commercial constructions.
Solar panel support frames: Used as rail/mounting structure thanks to good load-bearing capacity and corrosion resistance.
Other secondary structures: Awnings, lobbies, waiting houses, parking areas, sunshade frames.

Outstanding advantages are light weight, fast installation, reducing load on the main structure and suitable for both medium to large scale constructions.

Technical Specifications of Omega Purlin

Common specifications (reference, can be processed according to required drawings):

Typical sizes: Height (depth) about 30–150 mm or larger depending on the order; flanges and web according to specifications (for example 100×50, 150×75…).
Thickness: 1.0–3.0 mm (common 1.2–2.5 mm).
Material: Galvanized steel (Z120–Z275 or equivalent), black steel; common steel grades SS400, Q235, S250GD/S350GD.
Length: 6–12 m or cut according to requirements.
Weight: About 1.5–12.8 kg/m depending on size and thickness.
Accuracy: Small dimensional tolerance, flat surface, can be punched ready according to drawings.

Viet Son Mechanical uses modern roll-forming lines, strict quality control, meeting technical standards for light steel structures.

Top hat batten Omega Purlin Profile

THÔNG SỐ KỸ THUẬT (Technical Parameters) – mm
STT	SIZE	TIẾT DIỆN cross section						DIỆN TÍCH AREA	KHỐI LƯỢNG MASS	BÁN KÍNH QUÁN TÍNH radius of gyration		MÔ MEN QUÁN TÍNH moment of inertia		MÔ MEN CHỐNG XOẮN torsion moment
		H	B1	B2	C	D	T	A	P	Rx	Ry	Ix	Iy	Wx	Wy
		mm	mm	mm	mm	mm	mm	mm2	Kg/m	mm	mm	104 mm4	104 mm4	104 Mm3	104 Mm3
1	A30	30	48	30	15	–	0.4	40.0	0.3	11.4	11.9	0.5	0.6	0.1	0.1
							0.6	60.0	0.5	11.3	11.9	0.8	0.9	0.1	0.1
							0.75	75.0	0.6	11.3	11.9	1.0	1.1	0.1	0.1
2	A62	62	103	85	35	12	0.95	171.0	1.3	22.7	28.0	9.3	14.3	0.3	0.3
							1.2	216.0	1.7	22.7	28.0	9.3	14.3	0.3	0.3
							1.5	270.0	2.1	22.7	28.0	24.7	22.4	0.5	0.6
3	A96	96	100	122	35	12	0.95	256.5	2.0	33.9	32.7	29.4	27.3	0.6	0.6
							1.2	324.0	2.5	33.8	32.7	37.0	34.5	0.7	0.9
							1.5	405.0	3.2	33.9	32.7	46.2	43.3	0.9	1.2

Note: This is only a reference price. Actual price at Viet Son Mechanical workshop is more competitive thanks to direct production. Contact to receive accurate quotation according to specifications and order quantity.

Criteria for Selecting Omega Purlin

When choosing Omega purlin, consider the following factors to ensure safety and economic efficiency:

Load and span distance: Choose size and thickness suitable for roof load, wind, snow (if any) and column spacing.
Usage environment: Prioritize galvanized if the construction is outdoors or humid to resist corrosion.
Accuracy and surface quality: The product must be flat, little deformation, small tolerance for easy assembly.
Additional processing capability: Punching holes, cutting according to drawings, coating paint (if needed).
Cost and supply source: Prioritize direct manufacturers to have factory price and on-time delivery.
Certificates and origin: Check steel grade, galvanized coating and production process.

omega batten tophat purlin profile

Comparison of Omega Purlin with C, U, Z Purlins

Omega purlins (also known as hat sections) feature a distinctive Ω-shaped profile with a flat web. They offer good load-bearing capacity for light structures and provide decent anti-torsion performance. However, their ability to extend length is more limited compared to Z purlins. Omega purlins are commonly used for wall frames, ceilings, solar panel rails, and light roofing systems. They are relatively light in weight, moderately priced, and easy to install with a clean, aesthetic appearance.

C purlins have a symmetrical C-shaped cross-section. They deliver solid load-bearing capacity suitable for medium to small spans and are among the most economical options. Installation is very straightforward, though their length extension capability remains limited. These purlins are widely applied in medium-sized workshop roofs and wall structures, and they are light in weight.

Z purlins feature an offset-flange Z-shaped design that allows excellent continuous overlapping, making them ideal for extending length over large spans. They offer the highest load-bearing capacity among the four types, particularly in large industrial buildings and long-span roofs. While slightly more expensive and a bit more complex to install than C purlins, they remain light to medium in weight and highly effective for heavy-duty applications.

Quick conclusion: Omega is ideal for light frame systems, walls, ceilings and support rails; C is suitable for medium–small constructions saving costs; Z is optimal for large span roofs needing high load-bearing; U is used for secondary frames.

omega batten tophat purlin profile

Choosing a Reputable Omega Purlin Supplier

To ensure quality and good price, should choose a unit that has:

Direct roll-forming processing capacity (having specialized Omega roll-forming machine).
Experience in producing C, U, Z, Sigma, Omega steel sections.
Strict quality control process, on-time delivery.
Transparent quotation, technical consulting support according to drawings.

Viet Son Mechanical is a unit specializing in metal roll-forming and steel structures, including Omega, C, U, Z, Sigma purlins… with modern machinery, large-scale workshop in the industrial park. We provide factory price, production according to requirements, ensuring accuracy and progress for every project.

With synchronous and modern machinery and equipment system and professional staff, Viet Son is always proud to be a reputable mechanical service provider in Vietnam and international markets.