WCA March 2023

Focus on China

Global manufacturer of spring machines As a CNC spring machine supplier and torsion spring making machine manu facturer, WNJ specialises in spring coil ing machines, spring forming machines, grinding machines, spring temper furnaces and other related equipment. for accurate OD; separate motors for each wire feeding pair; and 3D analogue programming and remote control. The machine can be

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 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

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 company’s TK-7230 model is for wire diameters from 12 to 23mm, with wire feeding speeds up to 65m/min. Features include high precision with external cam

WNJ’s TK-750

Finished and semi-finished dies Shanghai Geili Precision Dies Co, Ltd was established in 2010, and six years later, Yichang Geili Diamond Industrial Co, Ltd was formed.

0.03mm); and nano diamond dies. The company also offers a die re-cutting and re-polishing service. Shanghai Geili Precision Dies Co, Ltd www.geilivable.com.cn

Geili’s range of semi-finished dies and finished dies includes natural diamond dies (0.005 to 2mm); polycrystalline diamond dies (0.04 to 12mm); tin-coated dies; shaped polycrystalline diamond dies; enamelling diamond dies (minimum

The company’s R&D team is composed of technicians who are experienced in wire drawing technology. This experience is integrated into the manufacturing of the drawing dies, so they can be matched with customers’ wire drawing production needs. Geili is equipped with advanced inspection equipment. In the factory’s multifunction wire drawing test centre, different sizes of multiple metal materials from 0.012 to 1mm can be drawn. The development of new metal materials and new processes is conducted through interaction with clients. After more than ten years of develop ment, the diameter of the drawing die has reached 0.005mm, and the production capacity has increased to 100,000 pieces per month.

Dies from Geili

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March 2023