What we do

We manufacture various precision metal parts not only steel, stainless steel, brass, but also difficult-to-machine materials such as titanium, Hastelloy, and high hardness materials.

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《Mazak　INTEGREX e-650H II / e1060V》

　This machine combines the functions of both lathe machining and machining center machining, and allows simultaneous 5-axis machining such as hole drilling, milling, and tilt machining, so all machining can be completed with this one machine. It also enables tilt and curved surface machining that could not be handled by ordinary lathe machining or machining center machining, and can process large objects with a maximum machining diameter of φ920 mm and a maximum machining length of 3,000 mm, expanding the range of products that can be handled.

　　Max machining size　　φ920㎜　ｘ　3,000㎜  <e-650H II>　　　　φ1,060㎜　ｘ　1,000㎜  <e-1060V>

《Okuma　LB3000Ex II》

　In addition to the slanted-box structure and high rigidity, the built-in full-power motor enables high-quality machining from heavy turning to high-speed turning. The combination of the latest software and hardware allows for greater speed and stability than ever before, and achieves excellent quality even when machining high-hardness materials, meeting the diverse needs of today.

　　Max machining size　　φ410㎜　ｘ　1,000㎜ 

《Okuma　NB300 / NB250T》

　This single-saddle CNC lathe is a high-speed, high-power, high-accuracy machine. Its stable turning performance, which doesn't seem to reflect its age, achieves excellent dimensional stability and high-quality machining. Its unique interactive operation function allows for quick setup and improved work speed, further refining the lathe processing that has been undertaken since the company's founding. It can process up to φ300mm.

　　Max machining size　　φ300㎜　ｘ　300㎜  <NB300>　　　　φ200㎜　ｘ　200㎜  <NB250T>

《Mazak　QTN-300》

　In response to requests for processing various sizes, we have introduced machines that can process long items with high quality. It is high speed and high performance and can handle lengths up to 1,500 mm. We can quickly finish processing a wide range of products.

　　Max machining size　　φ420㎜　ｘ　1,500㎜

《Mazak　FJV-20》

　It is a small double-column machining center and mainly for small products at high rotation speeds. We do surface machining, groove machining, hole drillling, tapping, inclined machining, etc. 

　　Max machining size　　500㎜　ｘ　400㎜　ｘ　250㎜

《Okuma　MC 50VA》

　This vertical machining center can handle sizes up to 1,000 mm, and is mainly for larger products. We do surface machining, groove machining, hole drillling, tapping, inclined machining.

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■STEP1　　Please feel free to contact us first.

Please feel free to contact us and send us a message.
Contact　Send a message

■STEP2　　Confirmation of your request

Please let us know your requirements, even if it's just a blueprint or freehand drawing.

We will confirm processing details such as the type of processing, whether materials are provided or included, the level of precision, and the desired delivery date.

■STEP3　　Submit a quote

We will create a quote based on your requirements and processing details.

We will deal with you again if necessary.

■STEP4　　Orders and processing

Once you have confirmed the quotation and officially placed your order, we will begin production.

■STEP5　　Finishing, inspection, and packaging

We will do finishing treatment to the products and inspect them.

Once all work is complete, it will be packed and prepared for shipment.

■STEP6　　Shipping and delivery

In-house delivery, shipping company, courier service, or pickup.

We will deliver your order using the appropriate shipping method based on its size, weight, and destination.

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CHOKAI MANUFACTURING CO., LTD.

［Ichihara plant］

Address:

1162-110 Nagarayama, Nagara-Town,

Chosei-county, Chiba, Japan

Postal code: 297-0234

Tel: +81 475-35-4888

Fax:+81 475-35-4959