Casting Business(Cast steel)

Our philosophy of "High Quality and High Precision"

Casting products strongly support various industries. Tochu, as a reliable partner of the industrial world, manufactures many types of casting products based on its experience and knowledge of casting sand.
TOCHU is also proceeding with further approach to achieve the higher quality and the more accuracy of the products by the integrated production system from Casting to Machining.　TOCHU appreciate that we receive high credibility and evaluation from many customers.

Casting process

High quality and precision are the most important factors in the casting production process. Tochu has developed our own production system utilizing a wide variety of technologies. Using the latest equipments at our plants, Tochu eliminates every unnecessary, useless and inconsistent tasks in order to keep smooth flow between operation stages, and consequently Tochu makes it possible to pursue the highest precision for our products.
Under this severe management system, Tochu can meet a wide range of customers' needs of cast steel products, such as standard steel, stainless steel and heat resistance cast steel, and aluminum cast products and so on.

AMS-08 molding machine
Sand processing equipment
AMS-08 line

Equipment list

Main equipment	Model	Manufacturer	Owned number	Remarks
High Frequency Electric Induction furnace	VIP POWER-TRAK	Inductotherm	3	1t furnace x 3
AMS raw molding automatic molding	AMS-08	Tokyu co.,ltd.	1	Frame size 600×800×250mm
Self-hardening large molding	730AR	TAIYO MACHINERY CO.,LTD	1	Frame size 1,000×1,000×400mm
Shot blasting machine	-	SINTOKOGIO, LTD. And others	7	1 monorail type, 2 apron type, 2 drum type, 1 nozzle type, 1 hanger type
Self-hardening hand-made molding	-	TAIYO MACHINERY CO.,LTD	1	Frame size 700×500～1,800×1,800mm
Distortion machine	-	DAIMA Ironworks	1
Pickling equipment	-	SWIRAY CO.,LTD.	1
Whetstone Automatic Cutting Machine	-	NIPPLA TRADING CO.,LTD and others	7
Annealing furnace	-	-	1
Thermal refining furnace	-	-	1
Electric furnace	-	KITAMURA Electric furnace	1
Optical Emission Spectrometer	PDA-7000	SHIMADZU CORPORATION	1
Hydraulic Universal Testing Machines	UH-300kNX	SHIMADZU CORPORATION	1
Impact tester	300CR-M1J	YONEKURA MFG. Co., Ltd.	1
Brinell Hardness Meter	A943501	TOKYO KOKI	1
Vickers Hardness Meter	AVK-M	Akashi Seisakusho	1
Metal microscope	PME-typeII 10/1273	OLYMPUS	1
magnetic particle flaw detection equipment	A1075	Denshijiki Industry Co.,Ltd.	2
Portable magnetic particle flaw detector	-	Denshijiki Industry Co.,Ltd.	2
Crane	-	MITSUBISHI,HITACHI	10
Forklift	-	TOYOTA and others	9
Welding machine	-	PANASONIC and others	30

wooden mold Warehouse

Based on many years of experience, we devised a plan and made a wooden mold pattern.
It is managed and stored in a dedicated wooden mold Warehouse.

Production capacity

130t/month

Steel type

SC(Ordinary steel): SC450、SC480、SCPH2、WCB and others

SCPH(Cast steel for high temperature and high pressure): SCPH21、SCPH32、WC6、WC9 and others

SCPL(Steel for low temperature and high pressure): SCPL1、LCB9 and others

SCW(Steel for welded structures): SCW480 and others

SCS(Stainless steel): SCS13、SCS14、SCS16 and others

SCH(Heat-resistant steel): SCH13、SCH18、SCH21、Heat-resistant steel for automotive parts and others

Alloy steel (tool steel): Tool steel for press dies and others

Niresist (Austenite cast iron): FCDA-NiCr and others

Factory certification

ISO 9001/2015 (JSAQ1383-13)
ISO 14001/2015 (JSAE1289-9)

NK(Nippon Kaiji Kyokai)(ClassNK): Carbon steel, low alloy steel, stainless steel

LR (Lloyd's Register of Shipping): Carbon steel, low alloy steel, stainless steel

CR (CLASSIFICATION SOCIETY): Carbon steel, low alloy steel, stainless steel

DNV/GL: Carbon steel, low alloy steel, stainless steel

KR(Korean Register of Shipping): Carbon steel

BV(Bureau Veritas): Carbon steel, low alloy steel, stainless steel

PED: Carbon steel, low alloy steel, stainless steel

JAPAN WATER WORKS ASSOCIATION: Carbon steel, stainless steel

Valve part name

Ball valve
Butterfly valve
Gate valve (partition valve)(gate valve)
Angle valve (elbow valve)
Glove Valve (Jade Valve)(ball valve)
Swing valve (reverse valve)(check valve)
Strainer
Sight Glass

Automobiles/Railway vehicles/Others

Turbine housing
Exhaust Manifold
Axle box body(Shaft box body)
Accompanied board guard
Brake shoe head(Wheeled head)
Traction motor receiver(Main electric motor receiving)
Tile tray

Main products

Automotive Function Parts

Turbine housing all-in-one design exhaust manifold for gasoline turbocharged engine
exhaust manifold for gasoline turbocharged engine
Turbine housing for gasoline turbocharged engine