NISSEI CORPORATION Repair Services India

Yes. Synchronics repairs the full NISSEI CORPORATION product range — injection molding machine controllers, servo amplifiers, proportional valve systems, PLC modules, temperature controllers, and load cell interfaces. We offer PAN India door pickup from Mumbai, Delhi, Pune, Bangalore, Chennai, Hyderabad, Ahmedabad, Indore, and all other metro and Tier-II cities. All equipment is repaired at our fully-equipped facility in Vadodara, Gujarat with ISO 9001 certification and 28+ years specialized in NISSEI systems.

Proportional solenoid valve stiction occurs when the internal spool gets stuck due to seal ring wear, contaminated hydraulic fluid, or thermal cycling stress. The spool cannot center properly, causing injection pressure regulation to fail and component dimensions to drift out-of-tolerance. Synchronics bench-tests the valve under controlled pressure, cleans internal passages ultrasonically, re-surfaces the spool and bore using precision lapping, and replaces seal rings. Typical repair turnaround is 5-7 working days. We pressure-test the valve to NISSEI specifications and provide a 6-month warranty.

NISSEI servo amplifier overcurrent trips are typically hardware-related — failing power supply capacitors, shorted output MOSFETs, or encoder signal quality issues. Synchronics diagnoses the root cause using specialized test equipment, repairs the specific failed component (capacitor, transistor, or encoder circuit), and verifies amplifier output stage under load. Firmware does not require reprogramming unless corrupted by power transient damage, which we can recover from backup memory. Turnaround is 4-6 days with full operational testing.

NISSEI PLC memory errors are usually recoverable. Synchronics backs up your machine program to external media, clears corrupted RAM sections, and verifies program checksum integrity. The root cause is often power supply voltage transients that damage backup battery circuits or aging capacitors. We replace failed capacitor banks, upgrade battery circuits, and restore your original machine program. Complete memory recovery typically takes 3-4 working days. Machine-specific backup programs saved to USB are provided for future reference.

NISSEI servo drives, proportional valve assemblies, and PLC modules typically cost 25%-40% of a complete machine controller replacement. Synchronics repair costs range from 8,000 - 35,000 INR for component-level repairs depending on fault severity, with 6-month warranty included. Most Indian molding plants find repair ROI justified within 2-3 months of resumed production. Request a quotation by sending photos and fault codes — Synchronics provides free diagnostic assessment for NISSEI equipment.

Pack the unit securely and courier it to our Vadodara workshop. Include a note with the fault description and your contact details. We will log it into our system and WhatsApp you a job number within 24 hours of receipt. Doorstep pickup is available in Vadodara, Ahmedabad, Surat, Mumbai, and Pune.

Repair cost depends on the model and the fault. We offer a free diagnosis — once we identify the fault, we provide a fixed quotation before proceeding. Typical repairs cost 20–40% of the new unit price. We will never repair without your approval.

All repaired units carry a 6-month comprehensive warranty covering the same fault and related issues. If the fault recurs within the warranty period, we repair it free of cost.

Yes. If we cannot repair your NISSEI CORPORATION unit after diagnosis, you pay only the diagnosis fee (₹500–₹1,500 depending on the product). The unit is returned to you at no additional charge.