
Door lock
Locking assembly including pneumatics – fully assembled and tested.
NKK secures the spare parts supply for rail vehicles and buses. We analyse the part, determine the costs, design and manufacture – up to the ready-to-install series part. Since 1999, for transit operators across Europe.

Many providers stop at the data set. We deliver the finished, inspected part – and tell you up front what it will cost.
Analysis, digitisation and reconstruction of parts without documentation.
Learn more → 02Manufacturing costs, process comparison and batch sizes – calculated before costs arise.
Learn more → 03Turned, milled, cast and plastic parts up to the tested assembly.
Learn more → 04Identify risks, define replacement strategies, secure long-term supply.
Learn more →With clear results after every step and a reliable cost statement before engineering begins.
Part, photos or part number – we check technical feasibility.
→ Feasibility assessmentGeometry, material, function and installation are fully captured.
→ Part dataWe determine manufacturing costs and compare processes and batch sizes.
→ Calculation & quoteDesign for manufacturing and cost, with a complete drawing set.
→ 3D model & drawingsFirst article produced and inspected, fitting test, approval by you.
→ First article reportSeries production, delivery and – on request – stocking and call-offs.
→ Ready-to-install part
Locking assembly including pneumatics – fully assembled and tested.

Door cylinder including fittings, hoses and cylinder components.

Ready-made pneumatic hoses with matching fittings.
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 →Send us photos, part number and quantity – you'll receive an initial assessment within two working days.