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  • EN74 Certified Cast Iron 360° Swivel Scaffolding Coupler for Bracing | YMT
    EN74 Certified Cast Iron 360° Swivel Scaffolding Coupler for Bracing | YMT
    Our EN74 Certified Cast Iron 360° Swivel Scaffolding Coupler is an adjustable fitting for scaffolding diagonal bracing and irregular structure erection. Made of high-strength ductile cast iron, it features 360° smooth rotation, stable locking and anti-corrosion treatment. We offer competitive price for bulk procurement.
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  • Riveted & Welded Scaffolding Steel Plank
    Riveted & Welded Scaffolding Steel Plank
    Our EN 12811 Certified Heavy Duty Scaffolding Steel Plank is made of high-grade galvanized steel, with anti-slip perforated surface, reinforced structure and superior load-bearing capacity. We offer both riveted and welded options, factory-direct wholesale with large ready stock and fast global delivery.
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  • Galvanized Steel Scaffolding Plank | Heavy Duty Scaffold Walk Board for Construction
    Galvanized Steel Scaffolding Plank | Heavy Duty Scaffold Walk Board for Construction
    1.Our Galvanized Scaffolding Steel Plank is the preferred choice for scaffolding rental business, with heavy-duty reinforced structure and long service life. 2.It adopts international universal size, with hooks for fast installation, 100% compatible with all mainstream scaffolding systems. 3.We support custom logo, with factory-direct wholesale price and large-scale production capacity for bulk orders.
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  • EN 12811 Certified Heavy Duty Galvanized Ladder H Frame Scaffolding Set
    EN 12811 Certified Heavy Duty Galvanized Ladder H Frame Scaffolding Set
    Our EN 12811 Certified Heavy Duty Ladder H Frame Scaffolding is specially designed for building construction, maintenance and rental business. It adopts one-piece robot welding structure, hot dip galvanized anti-corrosion, tool-free fast installation, and superior load capacity. We offer custom service with 10000 sets monthly capacity and sufficient ready stock.
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  • EN74 BS1139 Heavy Duty Forged Scaffolding Sleeve Butt Coupler | YMT
  • EN74 BS1139 Heavy Duty Forged Scaffolding Sleeve Butt Coupler | YMT
  • EN74 BS1139 Heavy Duty Forged Scaffolding Sleeve Butt Coupler | YMT

EN74 BS1139 Heavy Duty Forged Scaffolding Sleeve Butt Coupler | YMT

  • YMT
  • China
  • Within 20 days after order confirmation
  • Monthly capacity: 300-500 tons; supports 20GP/40HQ container orders
Our EN74 BS1139 Certified Heavy Duty Forged Scaffolding Sleeve Butt Coupler is a high-tensile axial fitting for high-rise scaffolding vertical extension and rental business. Made of one-piece hot forged steel, it features superior anti-pull out performance, high coaxial precision and long service life for repeated use.

EN74 BS1139 Heavy Duty Forged Scaffolding Sleeve Butt Coupler | YMT

Product Overview

YMT heavy duty forged scaffolding sleeve butt coupler (also known as forged pipe join coupler / external joint coupler) is a professional high-strength axial connection fitting for heavy-duty scaffolding systems, made of one-piece hot forged high-quality carbon steel. It is specially designed for steel pipe coaxial seamless extension in high-rise building construction, heavy engineering, and long-term scaffolding rental business, with ultra-high tensile strength, anti-pull out performance and fatigue resistance, and is the core safety fitting to ensure the stability of full-height scaffolding vertical extension. It completely solves the pain points of cast iron couplers such as easy deformation, low tensile strength and short service life in repeated disassembly and assembly, and is the preferred choice for global scaffolding rental companies and high-rise building contractors.


Heavy Duty Drop Forged Scaffolding Sleeve Butt Coupler

EN74 Forged Steel Pipe Join Coupler

One-Piece Hot Forged High-Tensile Steel Material: Adopting integrated hot die forging molding of high-quality Q235 carbon structural steel, the material structure is compact and uniform, no casting defects, the tensile strength and anti-pull out performance are more than 50% higher than cast iron couplers, can withstand huge axial tension under heavy load, no fracture and no deformation, perfectly suitable for high-rise scaffolding vertical extension.


High Precision Coaxial Structure & Anti-Bending Design: Optimized integrated sleeve structure, the coaxiality deviation of the two end locking clamps is controlled within ≤0.2°, far higher than the precision standard of cast iron couplers, ensuring that the two butt steel pipes are completely coaxial after locking, no radial offset, no bending, no additional bending moment under load, greatly improving the safety of the extended steel pipe.


Reinforced Anti-Loosening & Anti-Slip Locking Structure: Optimized reinforced double T-bolt locking structure, with higher locking torque, can firmly fix the two butt steel pipes at both ends of the sleeve; the inner wall is integrally forged with dense anti-slip texture, 360° close fit with the steel pipe, no sliding and no offset under dynamic load, ensuring the straightness and stability of the extended steel pipe.


Superior Impact Resistance & Fatigue Resistance for Rental Business: Forged steel material has excellent impact resistance and toughness, will not break under sudden heavy load and harsh construction environment; outstanding anti-fatigue performance, can withstand thousands of times of disassembly and assembly without plastic deformation, the service life is more than 3 times that of cast iron couplers, greatly reducing the procurement cost of scaffolding rental companies.


Heavy-Duty Anti-Corrosion Treatment for Long-Term Use: Standard thickened hot-dip galvanized anti-corrosion treatment, the zinc layer is uniform and dense, not easy to fall off, can effectively resist rust and corrosion in humid, coastal and harsh outdoor environments, perfectly suitable for long-term outdoor use and repeated disassembly and assembly in rental business.


Technical Specifications

This heavy duty forged scaffolding sleeve butt coupler is made of high-quality Q235 carbon structural steel, with a standard size that fits 48.3mm international universal scaffolding steel pipes. The single product weight ranges from 0.9kg to 1.1kg, and can be customized according to customer requirements. The surface treatment adopts hot-dip galvanized, electro-galvanized or painted options, among which the hot-dip galvanized zinc layer thickness is ≥85μm, which meets the highest anti-rust requirements for long-term outdoor use. The product has passed professional tensile test, with a minimum tensile failure load of ≥20KN, which exceeds EN74 standard requirements.


Application Scenarios


  • Vertical standard extension of heavy-duty scaffolding for high-rise and super high-rise building construction

  • Long-term repeated use scaffolding system for professional scaffolding rental companies

  • Horizontal ledger lengthening for large-span heavy-load scaffolding

  • Steel pipe extension for high-load formwork support system in bridge and tunnel engineering

  • Steel pipe extension for cantilever scaffolding and high-altitude operations with high safety requirements


  • Why Choose YMT Forged Scaffolding Couplers?

    We have a complete set of EN74 and BS1139 highest standard certification, professional tensile test reports, which can be provided with the goods to meet the customs clearance and project acceptance requirements of various countries. We have a fully automated forging production line, stable product quality, consistent specifications, can meet the long-term bulk procurement needs of scaffolding rental companies. We implement strict full-process quality control, 100% locking test and sampling load test for finished products before delivery to ensure zero defective products. Our professional foreign trade team provides one-stop service from inquiry to after-sales, responding to your questions within 24 hours.



    About YMT Scaffolding


    Yunmao Tong was established in 2008 and has over 15 years of professional experience in scaffolding production and export, accumulating rich industry resources and technical strength. A professional supplier of scaffolding systems, portal scaffolding, scaffolding fasteners, adjustable steel supports, and supporting building accessories, covering the needs of construction, decoration, exhibitions, and other fields, providing one-stop high-quality scaffolding solutions for global construction customers.


    High Tensile Forged Scaffolding Extension Coupler
    Heavy Duty Drop Forged Scaffolding Sleeve Butt Coupler

    EN74 Forged Steel Pipe Join Coupler
    High Tensile Forged Scaffolding Extension Coupler
    Heavy Duty Drop Forged Scaffolding Sleeve Butt Coupler


    Our Factory


    Owned Factories: 3 self-owned production bases (total area ≥20,000 ㎡), integrating R&D, production, testing and warehousing to realize full industrial chain operation.

    Production Lines: 8 fully automated lines in total, including 4 PLC-controlled automated welding lines and 4 professional electrostatic powder coating lines, ensuring efficient mass production and product consistency.

    Annual Production Capacity: 50,000 tons in total (30,000 tons of scaffolding systems, 15,000 tons of couplers, 5,000 tons of adjustable steel props), meeting large-order demand and on-time delivery.

    Production Advantages: International advanced technology, 99.8% welding qualification rate, and excellent corrosion/wear resistance of products via electrostatic powder coating, complying with international standards.


    EN74 Forged Steel Pipe Join Coupler
    High Tensile Forged Scaffolding Extension Coupler


    Heavy Duty Drop Forged Scaffolding Sleeve Butt Coupler
    EN74 Forged Steel Pipe Join Coupler
    High Tensile Forged Scaffolding Extension Coupler


    Certifications


    - Quality Control System: Strict "zero-defect" quality control throughout the whole process (raw material procurement to finished product inspection) with professional inspectors and advanced testing equipment.

    - Professional R&D Team: Led by industry veterans (≥20 years of experience), focusing on product optimization and innovation to adapt to global market needs.

    - Certification Certificates: CE Certified Scaffolding Products Comply with EN 1004-1:2018 & EN ISO 12100:2010, ISO1400 Certified,Occupational Health and Safety Management System,Quality Management System Certification Certificate,Product Test Certificate,meeting import requirements of European, American, Australian and Middle Eastern markets., meeting import requirements of European, American, Australian and Middle Eastern markets.


    Heavy Duty Drop Forged Scaffolding Sleeve Butt Coupler
    EN74 Forged Steel Pipe Join Coupler
    High Tensile Forged Scaffolding Extension Coupler

    Heavy Duty Drop Forged Scaffolding Sleeve Butt Coupler
    EN74 Forged Steel Pipe Join Coupler
    High Tensile Forged Scaffolding Extension Coupler


    Cooperative Partners


    Established long-term stable cooperation with over 200 global enterprises, including:

    - Interior Decoration Companies: Well-known enterprises in Europe and Southeast Asia.

    - Scaffolding Rental Companies: Professional rental companies in over 10 countries.

    - Exhibition Engineering Companies: Enterprises undertaking large-scale exhibitions in the Middle East and Europe.

    - Building Materials Distributors: Regional distributors in major export markets.


    Export Markets


    Products are exported to over 30 countries and regions across 5 continents, with a sound global sales and after-sales service network. Key markets include:

    • Europe: Germany, UK, France, Italy, Spain, Poland, etc.

    • Middle East: UAE, Saudi Arabia, Qatar, Oman, etc.

    • Africa: Nigeria, Kenya, South Africa, Algeria, etc.

    • Southeast Asia: Singapore, Malaysia, Thailand, Vietnam, Indonesia, etc.

    • Oceania: Australia, New Zealand, etc.



    FAQ


    Q1: What is the minimum order quantity for the universal adjustable shoring prop?

    A1: The minimum order quantity for standard models is 100 pieces, which is very friendly to small and medium construction projects and trial orders.


    Q2: Do you provide free samples of the shoring prop?

    A2: Yes, we provide free samples of all standard series of the shoring prop, customers only need to bear the international shipping cost.


    Q3: Can you provide EN1065 certification documents for customs clearance?

    A3: Yes, we provide complete EN1065 certification, CE certification and test reports for every order, to ensure smooth customs clearance for customers.


    Q4: Can you produce the shoring prop according to our customized size requirements?

    A4: Yes, we support full customized production according to your size, wall thickness, surface treatment and other requirements, even for small batch orders.


    Contact Us


    If you want to learn more about our EN1065 certified universal adjustable shoring prop, or need a customized quotation for your construction project, please contact our professional sales team directly. We will reply to you within 24 hours and provide the most cost-effective solution for your project.


Annex
  • What international certifications do your scaffolding and formwork products hold, and which market standards do they comply with?

    All our scaffolding, adjustable scaffolding props, drop forged couplers and formwork systems are certified with ISO 9001 quality management system and EU CE certification, fully complying with international safety standards including EN 1065, EN 12810, EN 74, EN 1004-1 and EN ISO 12100. We can provide SGS third-party authoritative test reports, ensuring full compliance with the access requirements of mainstream global markets such as the EU, Middle East, Australia and Southeast Asia.
  • Do you support OEM/ODM customization for scaffolding products? Can you produce according to our specific project requirements?

    Yes, we support flexible OEM and ODM customization services. We can design and produce exclusive scaffolding, props, couplers and formwork products according to your project needs, local market standards, size specifications and surface treatment requirements (such as hot-dip galvanizing, electrostatic powder coating, painting), to fully meet your customized procurement needs for different construction scenarios.
  • What is your minimum order quantity (MOQ) for scaffolding products, and what is the standard production lead time?

    Our MOQ is flexible based on product types and project requirements. For standard scaffolding products, we accept small trial orders to help you test the market; for large-scale engineering projects, we support bulk procurement with exclusive preferential prices. The standard production lead time is 15-30 days after deposit confirmation, and we can arrange expedited production for urgent orders to ensure on-time delivery.
  • What shipping methods do you offer, and can you handle the full export logistics process?

    We support multiple international shipping methods including sea freight (FCL/LCL), air freight and express delivery, and can provide door-to-door DDP/DDU logistics services. Our professional international trade team will handle the full export process including customs declaration, document preparation and real-time logistics tracking, ensuring smooth and timely delivery of goods to your designated port or warehouse.
  • What payment terms do you accept for international orders?

    We accept flexible and secure payment terms for international orders, including T/T (Telegraphic Transfer), L/C (Letter of Credit) and other mainstream international payment methods. For long-term cooperative customers, we can provide more favorable payment terms based on cooperation scale and credit status.
  • How do you ensure the quality of your full range of construction materials (scaffolding, formwork, steel props, couplers, etc.)? How do you handle quality issues?

    We implement a strict full-process quality control system for all our construction products: Raw Material Control: Only use certified high-quality steel with SGS material test reports. Production Control: Follow international standards (EN 74, EN 1065, EN 1004-1, etc.) with in-line inspection at every link. Pre-Shipment Inspection: 100% final inspection before shipment, with CE & ISO 9001 certifications. For quality issues: 24-hour rapid response, 3-working-day verification, free replacement/refund/compensation for our-caused problems, and root cause analysis to avoid recurrence.

Related Products

    Our EN74 BS1139 Certified Heavy Duty Drop Forged Right Angle Scaffolding Coupler is engineered for high-rise buildings, bridge engineering and scaffolding rental business. Made of one-piece hot forged Q235 steel, it delivers superior impact resistance, 25KN+ load capacity and anti-loosening design for long-term repeated use.
    Our EN74 BS1139 Certified Heavy Duty Forged 360° Swivel Scaffolding Coupler is designed for heavy-duty scaffolding bracing system and rental business. Made of one-piece hot forged steel, it features 360° smooth rotation, superior anti-shear performance, impact resistance and long service life for repeated use.
    Our EN74 Certified Cast Iron Right Angle Scaffolding Coupler is the core basic fitting for civil residential and commercial building construction. Made of high-strength ductile cast iron, it features stable load-bearing capacity, anti-slip design and anti-corrosion treatment. We offer competitive factory price for bulk procurement with fast delivery.
    Our EN74 Certified Cast Iron Scaffolding Sleeve Butt Coupler is a professional axial connection fitting for steel pipe seamless extension in general construction. Made of high-strength ductile cast iron, it features stable coaxial connection, superior anti-pull out performance and anti-corrosion treatment. We offer bulk supply with competitive factory price.
    Our EN74 Certified Cast Iron 360° Swivel Scaffolding Coupler is an adjustable fitting for scaffolding diagonal bracing and irregular structure erection. Made of high-strength ductile cast iron, it features 360° smooth rotation, stable locking and anti-corrosion treatment. We offer competitive price for bulk procurement.

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