Hebei Shuangtai Mold Frame Technology Co., Ltd. is one of the most reliable manufacturers and suppliers of cuplock scaffolding connecting pin in China, featured by quality products and good service. Please rest assured to buy discount cuplock scaffolding connecting pin from our factory. We also accept customized orders.
Manufacturer Profile
We are a specialized manufacturer focusing on scaffolding stamping and forging accessories. The factory owns full‑set forging, cutting and hot‑dip galvanizing production lines. Each batch will undergo dimensional tolerance inspection and shear‑resistance sampling test before delivery. Sufficient finished‑goods stock shortens delivery cycle and we provide one‑stop accessory supply for global engineering purchasers without intermediate distributors
Product Information
Product Overview
Cuplock scaffolding connecting pin, also named cuplock spigot, serves as the key connecting fitting for vertical standard splicing of cuplock scaffolding. When two cuplock upright tubes need butt‑joint for height extension, this connecting pin inserts into the inner cavity of upper and lower vertical tubes at the same time, realizing centering positioning and force transmission between segmented standards. Cooperated with positioning pin holes, it prevents relative horizontal slip between upper and lower 立杆. Most finished connecting pins adopt hot‑dip galvanized anti‑corrosion disposal. It matches perfectly with cuplock system vertical tubes and bears axial pressure and partial lateral shear force during framework operation. As an invisible inner built‑in component, its machining accuracy directly influences the verticality and overall stability of whole scaffolding frame.
Specifications & Models
Multiple dimension options are designed to adapt different cuplock upright tube sizes. Outer diameter of connecting pin mainly corresponds to inner diameter of cuplock standard tubes. Common outer‑diameter specifications cover 42mm, 44mm and 48 mm. Effective inserting length on single side ranges from 100 mm to 160 mm, and total overall length includes 200 mm, 240 mm, 280 mm etc. Positioning pin holes are pre‑drilled on pin body. Hole spacing and aperture are manufactured according to industry‑universal standards, matching lock pin diameter on construction site. Wall thickness of spigot body has ordinary and thickened versions. Thickened‑wall connecting pin applies to heavy‑load working‑condition scenarios, while ordinary specification fits conventional civil building cuplock scaffolding. Buyers need to confirm inner diameter of local cuplock upright before ordering to guarantee assembly compatibility.
Product Advantages
First of all, high‑precision machining realizes tight clearance fit with inner wall of cuplock vertical tube, reducing shaking gap after butt‑joint and keeping good verticality for spliced uprights.
Secondly, hot‑dip galvanized surface treatment strengthens rust‑resistant performance. Even under open‑air, damp construction environment, it can slow down metal oxidation and adapt multi‑project turnover usage.
Thirdly, integrated forging molding optimizes internal metal texture of product. Compared with simple welded pipe spigot, it delivers better shear‑resistance performance and avoids fracture risk under lateral force. Standard reserved pin holes ensure lock‑pin penetration smoothly, so operators can finish positioning locking rapidly on site without secondary hole‑drilling. Complete‑spec inventory supports mixed‑loading delivery together with other cuplock accessories
Application Scenarios & Examples
This connecting pin is specially developed for cuplock modular scaffolding vertical‑rod extension splicing. In civil building projects such as public health centers and industrial workshops, it is used for height splicing of cuplock uprights when building outer protection frame and formwork supporting frame. In municipal engineering, it applies to temporary support of viaduct auxiliary construction. For sewage‑treatment‑plant underground structure projects, cuplock scaffolding needs continuous heightening along with pit excavation progress, and connecting pins realize fast lengthening of vertical standards. Besides, it can also serve for temporary supporting frames of factory reconstruction projects, cooperating with other cuplock fittings to build stable temporary working platforms
Shipment & Customization Information
Multi‑dimensional custom service is available for cuplock connecting pin. Clients can adjust outer diameter, total length, single‑side inserting depth, pin‑hole position and aperture. Surface‑treatment solution can select hot‑dip galvanizing or painted anti‑rust coating. OEM service supports custom‑marking on product surface according to buyer requirements. Conventional‑size connecting pins keep safety stock for prompt delivery of supplementary orders. For large‑volume project orders, production lead‑time will be confirmed according to purchase quantity. Goods can be loaded directly at factory yard. Mixed‑container‑loading with cuplock ledger, brace and other accessories is acceptable. Mill test certificates can be attached with shipment for overseas project acceptance and customs clearance.
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