Mongtec’s Taiwan Service Center repairs and maintains Lyndex-Nikken driven tool holders and angle heads as an independent service provider; it is not an authorized Lyndex-Nikken service center. You do not have to send the unit back to the original manufacturer. Repairs are carried out in Taiwan; if your machine is outside Taiwan, email the fault first and Mongtec will quote either a repair or a replacement. Mongtec Precision is a Taiwanese brand headquartered in Taichung, Taiwan.

Send photographs of the unit and the Lyndex-Nikken model number. That is usually enough for a first opinion on whether it is worth repairing, and it costs nothing. Only then does it make sense to pay for freight.
Send photos and the Lyndex-Nikken model number — assessment is free
Bearing replacement, spindle and shaft regrinding, seal and coolant-path renewal, gear inspection and replacement, runout correction, and a final re-inspection against specification. Nothing is machined or replaced before the quote is accepted.
If the wear has gone too far, Mongtec will say so rather than quote a rebuild that will not hold. In that case a Mongtec unit on the same open turret or spindle interface is the alternative — nothing changes on the machine side.
Shipping a unit to Taiwan and back, customs clearance and the weeks the machine runs without it can cost more than the repair itself. So if your machine is outside Taiwan, email us first: Mongtec reviews the likely cause from your photos and description, then quotes the better option — a repair of the Lyndex-Nikken unit in Taiwan, or a Mongtec unit on the same turret or spindle interface. Send:
Describe the fault and get a quote →
Mongtec alternatives to Lyndex-Nikken →
All product names, trademarks and registered trademarks are property of their respective owners. All company, product and service names used on this page are for identification and comparison purposes only. Use of these names, trademarks and brands does not imply affiliation, endorsement, or sponsorship. Mongtec is an independent tooling brand; Mongtec products are not manufactured by, endorsed by, or affiliated with the companies referenced.
Mongtec provides independent repair and maintenance services. Mongtec is not an authorised service centre for, and is not affiliated with, the brands referenced on this page. Repairs are carried out using Mongtec-supplied parts unless otherwise agreed; original manufacturer warranties may be affected by third-party service.