350kw gear induction hardening

In the late autumn of Chengdu, the setting sun shines brightly and the forests are stained. The autumn wind blows not desolation, but our old friends who have come from far from Pakistan. Chengdu has also put on its most beautiful autumn clothes to welcome them.

As one of the most influential suppliers of induction heating machine in China, Duolin is the best &again choice for our Pakistani old friends, this is the third Induction Hardening machine they booked from us.

After sincere greetings and friendly conversations, the customer and his team came to the production workshop in Duolin to inspect the reserved gear internal teeth hardening equipment.

Our old friend is a agriculture tractor manufacturer from Pakistan, the gears are used in gearbox. Due to the high requirements for hardness and durability of engine gears, they attach great importance to the gear heat treatment pattern, for the sucessfully &good  running of previous two shaft induction hardening machine, they aks us to help customized this gear hardening machine according to their requirements.

The customer's gear has an outer diameter of 304mm and an inner diameter of 238.5mm. The gear gear is heating by DUOLIN Induction Hardening Equipment and Dipping quenching in the coil, the whole process takes about 3minutes including hardening and quenching for a single gear, and the expected result is a gear surface hardness of 58-64HRC.

According to the customer's requirements, Duolin has adopted advanced IGBT medium frequency induction hardening power supply, CNC induction hardening vertical, two sets of closed cooling system, and customized induction hardening coils;The coil will heat the complete inner side of gear, then dropped the complte gear into the oil tank.

The model of the medium frequency induction hardening power supply is MFP-350, with a rated output power of 350kw, a maximum input current of 525A, and a resonant frequency of 1-10 kHz. The hardening machine is controlled by both CNC &simens PLC, and from the customized visualization panel can control the power of Induction Hardening Power unit, On &OFF the cooling syustem(Power Unit &quenching oil with individully cooling system), monitor the engergy of each gear,throughout the process to ensure that the hardening results are in expected range.

After gear induction hardening tests, we inspected the gears together with the customer, and without exception, the inspection results of each gear were very satisfactory to the customer.

As for the enough communication during the design &production, also self testing, the acceptance checking is going well smoothly &comfortable and finished fastly, to express our grateful to our old freinds well cooperation during the communication and in time confirmation to the detail, and good support for the testing samples(they send us 40pcs gear for induction heat-treatment testing), so we agreed to travel to the famous scenic spot "Qingcheng Mountain" in Chengdu, to experience the beautiful scenery of Chengdu in late autumn and the sincerity of Duolin。