When two round tubes meet in a T or angled welded joint, one tube end must first be shaped to the OD of the other (a saddle or fishmouth notch) so the weld gap is small and the bead even. The notching machine mills that notch with a form cutter sized to the mating tube.
Furniture frames, chair cross rails, motorcycle racks and crash bars, fitness equipment, playground equipment, garden tool and hammer handles, railings and brackets.
Notching usually sits on the same line as roll cutting, punching, flattening and end closing; TONG DA can plan them together, or process small volumes under contract.
Send tube OD × wall × material, the mating tube OD and joint angle, and quantity; TONG DA trial-cuts and replies.
USA / UK / India: tube notching machine, pipe notcher, tube notcher, fishmouth tube notcher, tube coping machine, tube end notching. Turkey: boru kertme makinesi, boru ağzı oyma makinesi. Brazil: máquina de boca de lobo, entalhadeira de tubos. Spain / Mexico: muescadora de tubos, máquina boca de pescado. China: 冲弧机、冲口机、铣弧机、钢管冲弧机. Taiwan: 沖弧機、銑弧機、管端沖弧、魚口加工.