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Manufacturing Process

TongYu has established a whole set of production lines for our forging and casting products, the manufacturing process of which can be mainly divided into smelting, casting, forging, and heat treatment.

Smelting
Our smelting line is equipped with 2 Electric Arc Furnaces (50t, 100t), 3 Ladle Refining Furnaces (50t, 150t), 3 VD/VOD furnaces (50t, 150t), 10 vacuum castings machines (50t-450t) which are able to produce 450t ingot at most, and six sets of single-phase and three-phase ESR furnaces (20t, 30t, 40t), with the max allowable weight of ingot to be 80t. TongYu also has the ability of producing 75t water-cold special steel slab.

  • 100t ultra high power electric arc furnace

  • Casting ingots with 100t ladle furnace

  • 150t VD, VOD vacuum furnace

  • Water cooling casting device for ingots

Casting
The large casting workshop in TongYu produces fifty thousand tons of castings from carbon steel, alloy steel and stainless steel each year. The heaviest ingot we are able to produce is 400 tons.

We have an advanced resin sand production line. It is consisted of 550T forging cranes, 3150t/1250t forging presses, a 6000T press which is under construction for manufacturing crankshafts, 120MN forging press with 450T manipulator, 10t, 20t, and 60t intermediate frequency induction furnaces used for producing all kinds of gray iron, ductile iron, vermicular iron, alloy castings, wear/corrosion resistant castings, and heat- resisting castings, etc.

  • 60t medium frequency induction furnace

  • 60t sand mixer

  • Machine tool castings

Forging
Our forging line is a perfect intelligent combination of press and operation. Supported by the 12000t free-forging Oil press and its ancillary 450t manipulator, the 550t forging machine, as well as 5000t, 3150t, 1250t Oil press, the annual output of forgings is up to 180 thousand tons.

  • 120MN free-forging Oil press

  • 450t manipulator

  • 5000T Oil press

  • 3150T Oil press

Heat Treatment
For heat treatment line, TongYu has introduced 60 sets of natural gas furnaces and electric furnaces. The largest car-bottom furnace is 25m long, and max depth of vertical furnace is 30 meters. The annual output of the hat treatment line reaches 115000t.

  • 3.0m×20m hood type furnace

  • φ2.3×28m pit furnace

  • Horizontal spray quenching machine

Machining Equipment

TongYu owns more than 320 sets of machining equipment, such as five-axis linkage CNC planning and milling machining center (6m×20m), four axis linkage CNC floor boring and milling machining center (w260, w200,w160) from Italy PAMA, XKA2850×160 CNC gantry boring and milling machine, W250HC.NC/W200HC.NC double column machine from Czech SKODA, W200HC.NC CNC floor boring and milling machine, HTIII450×18/350-NC CNC horizontal lathe, CK61450×15/160 CNC horizontal lathe, CKD52100E×60/300 CNC double column vertical lathe, CK61315×20/125 heavy duty horizontal car boring machine, MK84300×18/250 CNC roll grinder, T21260×20/160 deep hole drilling and boring machine, etc. All of the boring, milling, grinding, slotting, drilling, among other operations in our forgings and castings production line are accomplished automatically by these machineries.

  • 6×20m 5-axis linkage CNC boring and milling machining center from PAMA

  • W200HC.NC from PAMA

  • CD5280E×50 CNC double column vertical lathe

  • CK61315×20m deep hole boring machine

  • CK61450×15 CNC vertical lathe

  • GMB2560 CNC gantry boring and milling machine

  • XKA2850×160 gantry boring and milling machine

  • W200 CNC double column floor boring and milling machine

  • M84260×9m grinding machine

  • MK84300X18 CNC roller grinding machine

  • T21260×20 deep hole drilling and boring machine

  • W250 boring and milling machine from SKODA

Equipment Machining capacity Load bearing capacity
Horizontal lathe max diameter: 4.5m; max length: 30m 350t
Vertical lathe max diameter: 10m; max height:6m 300t
Deep hole working lathe max inside diameter: 2.6m; max length: 18m 120t
Boring & milling machine max length/width/height: 20m/8m/4.5m 350t
Grinding machine max diameter: 3m; max length: 18m 250t
Manufacturing Process
Contact Us

Tongyu Heavy Industry Co., Ltd.

Tel.: +86-534-7287022
+86-534-7521157
Fax: +86-534-7287789
E-mail: THICL99@163.com
liyc@thicl.com
chexin@thicl.com