Service & support

As a manufacturer, we can provide services tailored to your needs and do our utmost to support the stable operation of your facilities.
If you have any requests or questions, please feel free to contact us.

Support and consultation for equipment problems

Contact us by phone

Japan office

Monday-Friday 9:00〜17:00 JST
(Closed on weekends and holidays)

> List of contacts for telephone inquiries

Inquiry from the Web

Please use our web-based inquiry system, as it may be difficult to contact us by phone.

> Service & Support Inquiries

Find a Service Location

Service staff are stationed at your nearest sales office or service location.

> Click here for domestic offices
> Click here to see our overseas service locations.


For safer use

Cautions for long outages

When shutting down facilities or equipment for an extended period of time, or when restarting operations after an extended shutdown, please refer to this section.

> Cautions for long outages

Machine trouble FAQ

The following is a summary of inquiries about machine trouble that we frequently receive from our customers. Please refer to this page.

> Machine trouble FAQ

Frequently Asked Questions

The following is a summary of the inquiries we frequently receive from our customers. Please refer to this page.

> Frequently Asked Questions


For customers requesting service and support

To ensure the continuous use of our equipment, our experienced staff, who are thoroughly familiar with Komatsu NTC's equipment, will provide support from inspection and repair to parts purchase.

~ To keep the equipment running ~

Inspection and Care Package

We offer a plan that includes an equipment inspection performed by a service engineer and a plan that includes the replacement of consumable parts and cleaning recommended by the manufacturer.
The inspection, which only a manufacturer can provide, ensures stable operation of the equipment.

Repair and overhaul

Repairs and overhauls are performed by expertly trained service engineers.
The use of highly reliable genuine parts ensures that performance and condition are maintained, leading to stable operation.
You can continue to use the equipment you have been using for a long time.

~ Recirculation of equipment~

Proposals for Discontinued Parts

We will inform you of production discontinuance and alternatives before parts become unavailable. For incompatible items, we will propose alternatives.
You can continue to use the equipment you have been using for a long time.

Spindle overhaul (rebuild)

Spindle failure can seriously affect production.
We offer the same quality inspection and quality assurance as for new products.

~ Equipment remotely ~

DX Solutions

Visualizes tool life to maximize tool life as well as to control line stoppage due to sudden tool breakage. This helps improve productivity.

For customers wishing to receive a quote or order supply parts

Supply Parts Center

We will provide prompt support with a complete system, both in Japan and overseas.

We handle shipments of supply parts to all domestic and overseas markets.
We support our customers by stocking 12,000 supply parts in 200 types.
・Many key components of equipment in stock
・In-stock parts are available for immediate shipment.
・Speedy response to customer problems

Inquiries about spare parts


For customers who have purchased used equipment or relocated equipment

Registration and maintenance of used equipment after purchase or equipment relocation

If you have purchased a used machine, please contact us.
Our services and support are available to you after the registration process for your equipment.

Relocation and Resale Registration