Radial dentation shaper cutter : Radial dentation shaper cutter is a method that has only radial cutting but no axial cutting. It is highly effective with respect to machining efficiency, precision, bit endurance, economy, etc. It can realize the machining of multiple gear that cannot be done by axial dentation shaper cutter. In 1700K1-141 radial dentation shaping experimentation, while axial shaping needs 2.1 minutes per piece, radial shaping needs only 34 seconds; while axial shaping reaches grade seven and a half in precision, radial shaping can reach grade six; this process experimentation successfully marked the advancement in process of the Gearbox Company. Radial shaping cutting bit ： In radial shaping cutting process, radial shaping cutting bit contributes critically in improving efficiency, precision, and endurance; the breadth of the bit is larger than the working breadth of the part. In whetting the bit, the dentation and its direction are modified, therefore the workbench does not move repeatedly to feed but only feed radially along the main shaft, thus greatly enhancing the machining efficiency. The reduction of the dentation error direction error, accumulated error, and dentation ring radial jump error is guaranteed by this high-precision bit. The comb-shaped cutting edge of the bit is arranged in such a manner that along the circular direction the cutting edge is arrayed orderly in a spiral way, the front part of the cutting edge is perpendicular to the bit's dentation face, resulting in a better cutting outcome. The residue on the work piece's dentation face is gradually offset by the spirally arranged cutting edges, with each cutting edge's workload evenly distributed. Therefore the friction is evenly distributed as well, resulting in a longer durance. After each whetting, the axial shaper cutter bit can machine 1000-2000 workpieces; the radial shaper cutter bit can machine 8000-10000 workpieces; an axial shaper cutter bit's endurance is 6000-7200 workpieces; however the radial shaper cutter bit's life is 48300-60000 workpieces. The promotion of the application of radial shaper cutter bit will bring new drive to the Gearbox Company. Roller bit deep cold treatment: The deep cold treatment after quenching of the gear roller bit help change further the metal phase structure of the material; after quenching and tempering, 6-8% of the residual Austenite will be transformed into tempering martensite , meanwhile large quantity of tiny carbite (less than 0.2μm in diameter) will result in dispersion manner; its existence greatly improves the bit's friction resistance and life. After deep cold treatment, the roller bit's life is extended by 60-100%, and after re-whetting its life is extended by 60-70%. This process especially is suitable to precision machining bits, such as reamers, broaches, tap, and shaper cutter bit. Besides, the cost of deep cold treatment is only 30% of a new one. Gearbox Company is striving to improve the life of its machining bits and to cut bit consumption. General-purpose loading cart： There are numerous types of onsite loading carts. Every part has a categorical cart with extremely low commonality. In loading and unloading parts, collision often occurs, thus greatly affecting the product quality and becoming a bottle neck for improving product quality. Gearbox Company looks at this problem as one of the priority jobs and endeavors to improve continuously in designing and manufacturing such carts. The carts' features include: a common usage among all parts and adjustable hinging shaft distance according to the size of parts; avoidance of collision among parts; trimness and neatness on the site, usefulness in civilized production and improvement on product quality. Compound material airproof paper gasket : In airproof sealing of the lid and backgear lid of the gearbox, ordinary asbestos-based paper gasket is used; because of the inferior process structure of the lids, after assembling, fuel leakage often appears, thus greatly infringe the product quality and corporate image. The common practice now is adopting injecting, heated mould pressing, and pressing shaping process in making compound material airproof paper gasket, which, compared with ordinary asbestos paper gasket, has better process structure, sealing result, and ease in dissembling. In grinding experiment, its endurance was found to be better than ordinary asbestos ones, fully satisfying the requirements of the products. With respect to pricing, compared with ordinary asbestos gasket, it requires no more investment; while the sealing results can be greatly improved in terms of quality, and the leakage problem is eliminated. Therefore, we have been using it since DF5S450 series, gradually extending the usage to DF6S600 and DF5S900 series toward a total coverage.