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'ทำไมจึงต้องเลือกใช้สินค้าของสยามลวดฯ' มาดูวิสัยทัศน์ และแนวคิด ของคุณสรณีย์ ดีพันธุ์พงษ์, กรรมการผู้จัดการ บริษัท ยูไนเต็ดคอนสตรัคชั่นแมติเรียล จำกัด (UNICO) ผู้ผลิตเสาเข็มสปันเจ้าแรกในประเทศไทย เรามาฟังคำตอบ ความเชื่อมั่น ความไว้วางใจ จากลูกค้าคนสำคัญของเราพร้อมกันเลย
20-11-2025
At SIW, we place the highest priority on the quality and accuracy of our testing. With modern and globally certified inspection equipment, you can be confident that the measurement results you receive are accurate, clear, and reliable.We utilize five types of testing machines, all of which are certified instruments capable of performing tests according to various international standards, including:1. Tensile Testing Machine (เครื่องทดสอบแรงดึง)🔬 Brand: Sans- Testing Standard "ISO15630-3 clause 5, ASTM A1061, TIS420 clause 6, AS/NZS4672, JIS G3536 clause 10.2"- PC Wire: Available to test product and Deform bar- PC Strand: Size range 9.3mm. - 18mm. , Foce range 10kN - 1,000kN🔬 Brand: Hung Ta- Testing Standard "ISO15630-2 clause 5, ISO15630-3 clause 5, ASTM A421 clause 5, TIS95 clause 6, AS/NZS4672,JIS G3536 clause 10.2"- PC Wire: Size range 4mm. - 9.4mm. , Foce range: 10kN - 500kN- PC Strand: Available to test product- Deform Bar: Size range: 4mm. - 11.9mm. , Foce range: 10kN - 500kN2. Fatigue Testing Machine (เครื่องทดสอบความล้า)🔬 Brand: Swick Roell- Testing Standard "ISO15630-1 clause 8, ISO15630-3 clause 10"- PC Wire: Size range 4mm. - 10mm. , Foce range: 10kN - 400kN- PC Strand: Size range 9.3mm. - 18mm. , Foce range: 10kN - 400kN- Deform Bar: Size range 10mm. - 30mm. , Foce range: 10kN - 400kN3. Relaxation Testing Machine (เครื่องทดสอบการคลายตัว)🔬 Brand: SO Engineering- Testing Standard "ISO15630-3 clause 9, ASTM A1061, TIS95, TIS420, AS/NZS4672, JIS G3536 clause 10.3"- PC Wire: Size range 4mm. - 9mm. , Foce range: 10kN - 300kN- PC Strand: Size range: 9.3mm. - 18mm. , Foce range: 10kN - 300kN 4. Salt Spray Testing Machine (เครื่องทดสอบละอองเกลือ)🔬 Brand: C & W- Testing Standard "ASTM B117"- PC Wire: Able to test all size maximun = 400 x 350 x 300 mm.- PC Strand: Able to test all size maximun = 400 x 350 x 300 mm.- Deform Bar: Able to test all size maximun = 400 x 350 x 300 mm.5. Chemical Analysis 🔬 Brand: Oxford- Testing Standard "ISO 14707"- PC Wire: Able to test all size: Sample diameter 5-90 mm. , Sample Length ≤ 140 mm.- PC Strand: Able to test all size: Sample diameter 5-90 mm. , Sample Length ≤ 140 mm.- Deform Bar: Able to test all size: Sample diameter 5-90 mm. , Sample Length ≤ 140 mm.📞 Contact us through any channel today.Call: 081-170-2571Line: @siwthailand
29-07-2025
At SIW, quality is not just a standard — it's our promise.We take pride in producing high-quality products tailored to meet our customers’ unique needs.With a strong focus on precision and rigorous quality control, we ensure that our products empower you to build with confidence and excellence.Mr. Worachoke ChavengpojHead of Department-Production
25-11-2025
SIW Testing Service Center is a comprehensive steel wire testing center with international standards. We provide high-precision steel wire testing services to support engineering and industrial applications that require reliable results. Our services include:1. Fatigue Test2. Relaxation Test3. Tensile Test4. Salt Spray Test5. Chemical AnalysisWith customizable testing procedures and accuracy exceeding 99.95%, SIW is committed to delivering reliable, fast, and industry-compliant testing results.#SIWTestingService #MaterialTesting #InternationalStandards #SteelTesting
24-08-2026
EP.1: What Is PC Strand?🏗️ Have you ever wondered what makes bridges and high-rise buildings so strong?The answer is PC Strand—a high-tensile steel strand that plays a vital role in prestressed concrete. It enables structures to withstand greater loads while enhancing their strength, durability, and service life.Because every strong structure begins with materials that meet recognized quality standards.
28-04-2026
⚠️ Clearing Up the ConfusionWhat’s the difference between Cold Drawn Wire VS Reinforcing Bar (Rebar) ? Here’s a simple breakdown you can understand in under 3 minutes:Cold Drawn WireCold Drawn Wire is produced by drawing steel through a die at room temperature, where the strength increases due to the strain hardening process. As a result, it offers precise dimensions and a smooth, shiny wire surface, making it suitable for applications such as:✔ Concrete Pipes✔ Stirrups✔ Spun Piles✔ Precast ConcreteReinforcing Bar (Rebar)Reinforcing Bar (Rebar) is manufactured by rolling steel with rollers at high temperatures (900–1200°C), allowing the metal to be easily shaped without cracking. However, its dimensional accuracy is lower compared to cold-drawn wire, and oxide scale forms on the surface, which must be removed after hot rolling. It is commonly used in applications such as:✔ Columns✔ Beams✔ Slabs📌 Quick SummaryIf the application focuses on strength, choose Cold Drawn Wire.If the application focuses on bonding with concrete and ductility, choose Reinforcing Bar (Rebar). Click >>HERE<< to see more about our Cold Drawn Wire.
20-06-2025
ตอกย้ำความเป็นผู้นำ! การันตีด้วยมาตรฐานระดับโลกตลอด 30 ปีบนเส้นทางแห่งการเป็นผู้ผลิต "ลวดเหล็กกล้าอัดแรง" ชั้นนำ เรายึดมั่นในคุณภาพและความรับผิดชอบในทุกกระบวนการ ความทุ่มเทของเราได้รับการพิสูจน์ผ่านรางวัลและมาตรฐานอันทรงเกียรติมากมาย ซึ่งเป็นเครื่องยืนยันถึงความไว้วางใจจากทุกภาคส่วน ด้านอุตสาหกรรมสีเขียวและความยั่งยืน:- อุตสาหกรรมสีเขียว ระดับที่ 4 (วัฒนธรรมสีเขียว)- รางวัล CSR-DIW (พ.ศ. 2546 - 2567)- รางวัลธรรมาภิบาลสิ่งแวดล้อมและความปลอดภัย- มาตรฐานผลิตภัณฑ์อุตสาหกรรม: แนวทางเศรษฐกิจพอเพียงภาคอุตสาหกรรม (มอก. 9999) ด้านแรงงานและอาชีวอนามัย:- รางวัลสถานประกอบกิจการดีเด่นด้านแรงงานสัมพันธ์และสวัสดิการแรงงาน (พ.ศ. 2552 - 2567)- มาตรฐานแรงงานไทย (มรท. 8001-2546)- รางวัลสถานประกอบกิจการต้นแบบดีเด่นด้านความปลอดภัยฯ ด้านจรรยาบรรณและความโปร่งใส:- รางวัลประกาศเกียรติคุณจรรยาบรรณดีเด่น หอการค้าไทย (TCC BEST Awards)- รางวัลองค์กรโปร่งใส (NACC Integrity Awards)ความสำเร็จทั้งหมดนี้เกิดขึ้นได้เพราะการสนับสนุนจากลูกค้า คู่ค้า และความทุ่มเทของพนักงานทุกคน เราขอขอบคุณจากใจจริง และจะมุ่งมั่นพัฒนาองค์กรเพื่อสร้างสรรค์คุณค่าสู่สังคมและอุตสาหกรรมไทยอย่างยั่งยืนต่อไป
04-12-2024
Concrete Roads vs. Asphalt Roads: Which is Better? Selecting the right material for road construction is a critical decision that influences performance, longevity, and overall cost. Concrete and asphalt are the two primary options, each with distinct advantages and limitations. The key is to choose the material that best aligns with the intended application and environmental conditions. Asphalt Roads Asphalt roads are known for their flexibility and smooth surface, offering a more comfortable driving experience. However, they are vulnerable to weather conditions, such as extreme heat or heavy rain, which accelerates deterioration. Typically, asphalt roads have an average lifespan of 10–15 years, making them suitable for general use and smaller projects. Advantages • Lower initial construction costs. • Quick construction time; roads can be used immediately after the asphalt is laid. • Simple and fast maintenance using resurfacing techniques (re-paving the road surface). Disadvantages • Faster degradation compared to concrete, particularly in areas with high temperatures or frequent flooding. • High maintenance costs due to the need for frequent repairs. Concrete Roads Concrete roads consist of a mixture of cement, stone, sand, and reinforcement materials such as wire mesh, which enhance strength and durability. With an average lifespan of 20–40 years, concrete roads are ideal for large-scale projects and infrastructure that must withstand heavy loads, such as highways, bridges, and industrial zones. Advantages • Superior strength and durability, capable of handling heavy loads effectively. • Stable and smooth surface, with reduced risk of subsidence over time. • Long-term cost-efficiency due to lower maintenance requirements. Disadvantages • Higher initial construction costs. • Longer construction times, as the concrete must cure and gain strength before use. • Complex and costly maintenance processes for repairs. Deciding between concrete and asphalt roads requires careful consideration of factors such as usage, budget, and environmental conditions. By aligning these factors with the project’s objectives, you can ensure the road meets its intended purpose effectively. Siam Industrial Wire offers premium-quality wire mesh steel grids tailored for concrete road and flooring applications. These products are manufactured in compliance with Thai Industrial Standards (TIS) and certified by the Thai Industrial Standards Institute (TISI). The offerings include TIS 737 for standard applications and TIS 926 for cane and rubber-specific uses, ensuring superior quality and performance. Wire Mesh : https://www.siw.co.th/th/product-detail/wire-mesh
05-07-2023
How deep should the pile be drilled to ensure safety?Piles are an essential component used to support and transfer the weight and load of a building to the ground. The load transfer of a pile occurs through the frictional resistance between the pile surface and the surrounding soil or through direct load transfer to the underlying soil or bedrock. The main purpose of using piles is to prevent the building or structure from settling or sinking into the ground. For small-scale buildings, the piles used are generally shorter in length and fewer in number. However, larger buildings may require a greater number of piles or longer piles to transfer the load to deeper layers of soil and bear a higher load capacity. If the pile extends to the level of hard soil, it can directly transfer the load from the building to the hard soil layer. How do piles bear the load?Piles bear the load through two main types of forces: "skin friction" and "end bearing." 1. Skin Friction: This force is generated by the frictional resistance between the pile surface and the surrounding soil. The magnitude of this force depends on the type of soil (each soil type has different skin friction properties) and the characteristics of the pile surface. 2. End Bearing: This force occurs at the pile tip, where the pile rests on a firm soil layer. The magnitude of this force depends on the type of soil, such as the presence of voids between soil particles. Soils with more voids have a lower load-bearing capacity, while compacted sands have a higher load-bearing capacity. In general pile design, for skin friction piles, the focus is on the size and length of the pile to generate sufficient lateral friction to support the applied load. For end bearing piles, the design aims to have the pile sit on a compacted sand layer. Types of piles used in construction can be broadly categorized into three main types based on their manufacturing and usage characteristics: 1. Spun Piles: These piles are produced by spinning concrete in a mold at high speed. This process results in a dense and strong concrete core with embedded steel reinforcement. Spun piles can be driven or drilled and are suitable for high-rise buildings that require strength to withstand wind loads and earthquakes. 2. Bored Piles: Bored piles are constructed by drilling a hole and then placing steel reinforcement and concrete into the drilled hole. They come in various lengths and sizes as specified. Bored piles are suitable for projects that require high strength and load capacity. 3. Prestressed Concrete (PC) Piles: PC piles are manufactured by placing concrete into a mold that contains prestressed steel wires or strands. The concrete is then compressed to enhance its strength. PC piles are used in construction projects that require high strength and durability in various environmental conditions. Siam Wire Industries (SIW) offers PC Wire and PC Strand, which are the primary components used in the production of prestressed concrete piles. SIW has gained recognition in over 50 countries worldwide and provides post-sales services, including on-site wire pulling tests for customers. These services ensure customer confidence in using SIW's prestressed wire products. PC Wire: [Link to SIW's PC Wire product page] (https://www.siw.co.th/en/product-detail/pc-wire) PC Strand: [Link to SIW's PC Strand product page] (https://www.siw.co.en/th/product-detail/pc-strand)
We are relentless in our pursuit for excellence in product quality and innovation. We take pride in being able to anticipate your needs and provide tailored solutions for each of your requirements. We strive to exceed expectations.