



Zhangzhou Yunmaotong Import and Export Co., Ltd.
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.


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.
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.
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
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.





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.





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.






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.