Main Equipments
NHI has complete facilities for design, test, inspection, measurement, heat treatment, welding, mechanical machining and assembly and complete manufacturing system, and also more than 3000 pieces (sets) of different kind equipment, main manufacturing equipment over 2000 pieces(sets) including large-scale equipment 242 pieces(sets), NC equipment 116 pieces(sets).
Heat Treatment: 16×8×6.5 pallet gas furnace, pallet resistance furnace, well carburizing furnace, well tempering furnace, box-type electric furnace, quenching lathe, grow ion nitriding furnace and many kinds of furnaces 18 sets, NC two-column 4×1.2m high-frequency quenching lathe, multifunctional NC gear quenching lathe, medium-frequency oil-buried quenching lathe, power-frequency wheel quenching lathe, 0.9-2.5m well carburizing furnace and complete processing equipment like large-scale quenching oil chute and water chute etc.
Metal Structure: large-scale steel plate pretreatment production line, 8×30m various kinds of cutting machine 17 sets, 9×6 welding manipulator 12 sets and complete large-scale turning rolls and other auxiliary equipment; 120×4000 various kinds of rolling machine 21 sets, 1600T hydraulic press, 1000T open type one-armed oil press, 800T×6m NC bending machine, 500CM2 Cold bending machine and other large-scale equipment.
Cold Processing: 8×20m heavy-duty 7-axis(5interlockable)planer type moving CNC milling-turning combination lathe, 6×2-10×20m various kinds of CNC planer milling machine 15 sets, Φ160-Φ260 various kinds of NC boring & milling machine 21 sets, Φ5-Φ20m various kinds of large-scale CNC vertical lathe 16 sets, Φ5-Φ14m gear hobbing machine 6 sets, more than 1m curve-tooth hobbing machine 5 sets, 0.8-1.5m various kinds of gear grinding machine 9 sets, Φ2.5-Φ3.5m various kinds of gear shaping machine 3 sets, Φ800 horizontal gear hobbing machine, Φ800×5m cylindrical grinder,2m NC vertical mill and full-automatic idler production line.
Coating :various kinds of shot blasting rooms, 15 sets of paint spraying rooms and idler support painting line.
Physical and chemical analysis and inspection: B254020 three coordinate measuring machine, American Automatic Precision Engineering Group Absolute Laser tracker and absolute joint arm measuring machine,Germany 6m measuring machine,300KN and 1000KN electric universal material testing machine, Olympus metallurgical microscope, Japan Shimadzu Corporation FX-1800 type X-ray fluorescence spectrometer, American Leeman Company Prodigy XP type ICP,Germany USN60, Britain Sonatest450p,American EPOCH LTC and other advanced ultrasonic detecting equipment.
NHI factory has 15 modern plants, total building area 60.5 hectares including 36×288×21m continuous four-span double deck crane with capacity 500t, various complete facilities and 2 modern assembly plants, one 24×144m constant temperature workshop.
