EuroWire January 2023

Focus On CHINA

Global manufacturer of spring machines As a CNC spring machine supplier and torsion spring making machine manufacturer, WNJ specialises in spring coiling machines, spring forming The company’s TK-7230 model is for wire diameters from 12 to 23mm, with wire feeding speeds up to 65m/min.

for accurate OD, and 3D analogue programming and remote control, but for wire diameters from 2 to 5mm, with wire feeding speed up to 125m/min. The pneumatic pressure can be adjusted to alter the compression friction of the wire feeding wheel. It is controlled with seven axes for wire feeding, upper cutter axis, lower cutter axis, upper variable diameter axis, lower variable diameter axis, mandrel movable axis and pitch axis. The variable diameter part adopts a gapless motion mode set according to the principle of equal straight lines across the centre of the heart-shaped cam. The cutting part adopts precision planetary deceleration, and the mandrel lifting and upper and lower cutting motors are integrated to keep the same distance from the cutter to the mandrel. WNJ Spring Machine Co, Ltd www.chinathjx.com

Features include high precision with external cam for accurate OD; separate motors for each wire feeding pair; and 3D analogue programming and remote control. The machine can be operated synchronously or independently. It is controlled by 12 axes, with six axes for wire feeding: upper cutter axis, lower cutter axis, upper variable diameter axis, lower variable diameter axis, variable diameter movable axis and pitch axis. The hydraulic pressure can be set and adjusted directly, and the hydraulic system is safe and stable. The fully enclosed wire feeding rack has an anti-slip system. The TK-750 model also features high precision with external cam

machines, grinding machines, spring temper furnaces and other related equipment.

WNJ’s TK-750

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January 2023