Shikanja, also known as a Clamp, is a mechanical fastening device used to hold or secure objects tightly together to prevent movement or separation during work like welding, cutting, drilling, or assembly.
Purpose & Function:
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Provides a firm grip on materials during fabrication or installation
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Enables hands-free operation for precision work
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Ensures alignment and stability during joining processes
Types of Shikanja:
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Pipe Clamp (U-bolt or Saddle Clamp) – Secures round pipes to walls or frames
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Scaffolding Clamp (Coupler) – Joins two steel pipes in scaffolding structures
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C-Clamp – Used in welding to hold plates or rods
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G-Clamp or F-Clamp – Used in wood or metal workshops to hold frames or sheets
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Adjustable Bar Clamp – Holds wide or irregular workpieces
Material:
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Made of mild steel (MS), cast iron, or forged steel
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Galvanized or painted for corrosion resistance
Sizes (mm):
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Pipe clamps: 15 mm to 100 mm diameter
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G-Clamps/C-Clamps: 50 mm to 300 mm jaw opening
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Scaffolding clamps: 48.3 mm OD compatibility (standard)
Weight:
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Small pipe shikanja: 0.2 – 0.5 kg
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Heavy-duty scaffolding clamp: 1 – 1.5 kg
Applications:
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Construction scaffolding pipe fitting
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Welding & metal fabrication alignment
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Pipe installation support
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Carpentry and furniture joining work
Advantages:
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Strong & durable grip
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Reusable and reliable in heavy use
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Enhances work safety and accuracy
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Easy to install and adjust