Regardless of whether you’re looking for someone to perform expert repairs on your TSCHUDIN cylindrical grinding machine or if you need an original spare part: At M.+M. Mai you’re in the right place for both of your needs.
Repair Service
When it comes to the professional repair of hydraulic and stepper motor-driven TSCHUDIN cylindrical grinding machines, customers around the world trust M.+M. Mai GmbH. Our experienced technicians work quickly and reliably, only use original spare parts, and put each repaired machine on a test run before they put it back into operation on site. Our repair service includes , but is not limited to, the following services:
- Repair of components such as workpiece headstock and tailstock
- Replacement of worn parts (bearings, seals, belts, etc.)
- Surveying and functional check of the machine
- Inspection and cleaning of guides and lubrication systems
A special feature of M.+M. Mai: We make loaner units available for the duration of the repair of your TSCHUDIN modules. This way you keep your production downtime to a minimum.

Thanks to many years of experience in overhauling, supply of spare parts, and servicing of precision machinery, M.+M. Mai GmbH is your competent partner for the following TSCHUDIN models:
- HTG 300; HTG 310
- HTG 400; HTG 410; HTG 610; HTG 420; HTG 620; HTG 430; HTG 630; HTG 440
- HTG 410U; HTG 610U
- HTG 412; HTG422; HTG 612; HTG 622; HTG 432; HTG 632; HTG 442
- HTG 412 U; HTG 612 U
Maintenance Service
We offer comprehensive maintenance service for all TSCHUDIN machines:
- Machine overhauls
- Production optimization
- Technical and electrical support
- Telephone consultation
Spare Parts Service
Many machine owners find it difficult to get spare parts especially with older machine models. M.+M. Mai has over 20 years of experience in the procurement of original spare parts and matching accessories.
We are even an exclusive supplier of spare and wear parts for TSCHUDIN brand machines. The following accessories and spare parts are a sample of the many items to be found in our warehouse:
- Spindle bearings, seals, belts
- Clamping devices
- Pullers
- Tools
- Filter systems
- Grinding wheel flanges
Spare parts that we have in stock will be shipped to you within 24 hours. Upon request, our service team will take care of on-site expert installation.
Repair Service for Cylindrical Grinding Machines from other Manufacturers
In addition to TSCHUDIN machines, we also perform repairs on LIZZINI cylindrical grinding machines, and on request even on machines from manufacturers such as STUDER, KELLENBERGER or GHIRINGHELLI.