Spare parts specialist for rail and bus since 1999.
NKK develops, designs and manufactures components for transport vehicles. More than 25 years of experience with door systems have shaped our core business today: reverse engineering and obsolescence management.
Engineering and manufacturing under one roof.
Our engineering team combines design expertise with detailed knowledge of the parts that stay in service in rail vehicles and buses for decades – from door drives and locks to guides and pneumatics.
Because analysis, cost engineering, design and manufacturing come together at NKK, nothing gets lost at the interfaces: whoever analyses the part also knows how it will be manufactured – and vice versa.
Who we work for.
Transit operators in major cities across Europe rely on NKK when spare parts are no longer available.
Public transport operators
Trams, light rail, metros and bus fleets.
Railway operators
Regional and long-distance operators with long-lived fleets.
Maintenance depots
Depots and workshops that overhaul vehicles.
OEMs & system suppliers
Manufacturers securing the aftermarket for legacy series.
What you can rely on.
Quality
Parts that fit and last – inspected before they leave our premises.
Transparency
Costs and results are traceable at every step.
Availability
Many parts in stock, stocking as agreed.
Reliability
Commitments that hold. One contact who knows your project.
A member of the Glatz Group.
NKK is part of the Glatz Group, an owner-managed family holding company for technology-driven mid-sized businesses. For you, that means a financially stable supplier with a long-term perspective – essential when spare parts must be secured for the remaining service life of a fleet.
More about the Glatz Group →A part is no longer available?
Send us photos, part number and quantity – you'll receive an initial assessment within two working days.