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Pins and pin plates are the most crucial fastening and connecting components in the aluminum formwork system. They achieve rigid connections between formworks through the "pin through plate + pin plate wedging" method, which is a key accessory for ensuring the overall rigidity of the aluminum formwork, preventing bulging, and maintaining the accuracy of the formed shape.

Pins (Core Connecting Components)

Structure: Composed of a pin cap (head) and a pin rod (with pin holes), with a transverse long hole in the middle of the pin rod for inserting the pin plate.

Material: Q235B / 45# steel, solid cold heading forming, high strength and good toughness.

Surface treatment: Natural color, galvanized / zinc chromate (anti-rust).

Common specifications (diameter × length):

Standard pins: Φ16×52mm, Φ16×54mm (most commonly used, suitable for standard aluminum formwork).

Extended pins: Φ16×83mm, Φ16×100mm, Φ16×140mm (used for thick plates, back楞, and square tubes connection).

Pin plates (Wedge Locking Components)

Structure: Wedge-shaped thin plates, one end wide and the other end narrow, with U-shaped or straight slots, self-locking after being knocked in.

Material: Q235B / 45# steel, stamped forming, hardness HRC38–42.

Common specifications (thickness × length):

Standard pin plates: 3.0×70mm, 3.5×70mm (most commonly used).

Arc / Bent pin plates: Easier to tighten and prevent loosening due to vibration, suitable for smooth formwork surfaces.

Diving into the world of precision and durability, both the pin and the pin plate stand as essential, nail-like components crafted from robust metals such as steel, copper, stainless steel, and aluminum. These versatile and reliable elements find their indispensable place across a multitude of industries including construction, furniture, machinery, and beyond.

Ingeniously designed for ease of use, the head of a pin is crafted wider than its body, available in diverse shapes like blunt or semi-circular, ensuring easy integration with the help of a rubber or iron hammer. The pin piece complements this with its diverse small board designs, featuring protrusions in shapes like circular, square, and long strip forms. This dynamic duo excels at connecting or securing multiple objects with precision and ease.

In architectural marvels, dowel pins shine as pivotal connectors and fixers for building materials such as stone, brick walls, concrete, and aluminum formwork, creating cohesive structures that guarantee building stability and longevity. Specifically, within aluminum template systems, the seamless combination of pins and pin plates unites aluminum templates swiftly and securely, revolutionizing fasteners in modern construction. Beyond this, they offer versatility in crafting door and window frames and securing other wooden products with impeccable efficiency.

In the thriving world of furniture, dowels are the unsung heroes, efficiently uniting various components such as bed frames, chairs, and sofas. Pin pieces further enhance functionality by expertly installing drawer slides or seamlessly connecting furniture panels, bringing durability and elegance to every piece.

In the machinery sector, dowels serve as the cornerstone for connecting and securing mechanical parts like drive shafts, exhaust pipes, and hydraulic cylinders. Their versatility extends into the transportation industry, where they are indispensable in manufacturing vehicles, airplanes, and trains, ensuring the reliable connection and fixation of countless components.

Thus, in the grand tapestry of engineering and design, dowel pins emerge as small yet mighty components, fulfilling vital roles across diverse fields with their multifaceted functions in connection, fixation, assembly, and disassembly, underpinning innovation and structural integrity in every application.