TOYOKOKA Co., Ltd excels in a broad range of fields. Our business activities and operations include the production of the hard chromium plating used in drilling and excavating machines – this includes chrome plating for lathes as well as other construction equipment - however, the main bulk of our business operations consist of providing repair and maintenance for the cylindrical mechanical parts of industrialmachines used to produce various kinds of goods and products.Major clients and further elaboration of our business operations follows below.
Affiliated dealers include those of the Komatsu, Ltd, the Hitachi Construction Machinery Co., Ltd, the Caterpillar (CAT), and other domestic and international construction equipment repair shops
Left: A damaged piston rod from Hitachi ConstructionMachinery Co., Ltd. Right: After repair; a picture of the same piston rod repaired with hard chrome plating
Left: A piston rod from the Komatsu, Ltd. series that has been heavily bent. Right: A picture of the same piston rod after the bend has been repaired with hard chrome plating.
Left: This is from a KOBELCO Construction Machinery Co., Ltd series dealer: A piston rod that has suffered noticeable crevice damage. Right: Post-repair: A picture of the same rod.
[Hydraulic Equipment Maintenance Industry]We have numerous hydraulic equipment
maintenance and repair shops located across Japan.
[Crane Industry]Maintenance shops specializing in the repair of Marine Cranes, Crane Cars, and Land-based Cranes and lifting units.
Left: The outrigger rod of a crane car. The hard chrome plating is peeling. Right: After repair, the hard chrome plating has been restored.)
Left: The rod of a Harbor Crane, exceeding 6m in length. Featuring pits, nicks and marks made by foreign substances. Right: After repair, it has been restored with hard chrome plating.
[The Concrete and Sand Pump Industry] We offer domestic contracting and supply – We provide Pumping Machine maintenance and repair.
Pictured is the driveline of a concrete pumping vehicle. Left: Before repair. It has been worn out by raw concrete. Right: After repair.
Pictured is the pumping cylinder of a concrete pumping vehicle. Left: Before repair. Right: After repair.
[Excavation and Drilling Industry] Nation-wide - Excavation and Drilling Machine maintenance and repair shops.
This is an image of a high-pressure chemical injection pump plunger. Note how the item has been corroded by chemicals. Left: Before repair. Right: After repair.
[Synthetic Fiber Industry] We service Asahi Kasei Corporation - Toray Industries -Mitsubishi Rayon Co., Ltd. as well as other consumers of synthetic fiber rolls. In addition, we provide rolls intended for use in steelmills.We provide accessories and undertake the bottling of factory and drinking water intended for use in the production of beer and other such products.We also oversee cosmetic, toiletry, etc. and powder component manufacturing.
Left: A rolling mill roll used in a steelmill. Numerous surface scratches can be seen. Right: Scratches in the process of being removed through the usage of the chrome plating process.