BUCHI Repair Services India
BUCHI is a globally recognized Swiss manufacturer of laboratory and industrial evaporation, rotary evaporators, spray dryers, and concentration equipment. Founded in 1939, BUCHI equipment is essential in pharmaceutical, chemical, food processing, and research sectors worldwide. In India, BUCHI rotary evaporators and spray dryers are extensively used in API manufacturing, contract research organizations (CROs), and chemical processing plants across Gujarat, Maharashtra, and Tamil Nadu.
BUCHI is a globally recognized Swiss manufacturer of laboratory and industrial evaporation, rotary evaporators, spray dryers, and concentration equipment. Founded in 1939, BUCHI equipment is essential in pharmaceutical, chemical, food processing, and research sectors worldwide. In India, BUCHI rotary evaporators and spray dryers are extensively used in API manufacturing, contract research organizations (CROs), and chemical processing plants across Gujarat, Maharashtra, and Tamil Nadu.
Synchronics Electronics specializes in repairing BUCHI's complete electronics ecosystem including rotary evaporator controllers, spray dryer control systems, vacuum pump drivers, heating bath regulators, and distillation system boards. Our 180+ engineers have repaired 500+ BUCHI equipment units across Indian pharmaceutical and chemical industries. We handle BUCHI R-200, R-300, Spray Dry B-191, Rotavap controllers, and vacuum control modules with 7-day turnaround and full component-level diagnostics.
Expert BUCHI evaporator and spray dryer electronics repair across India — 180+ engineers, 500+ units restored.
BUCHI Equipment We Repair — By Category
BUCHI Product Lines We Repair
Our engineers are trained on the full BUCHI product range. Below are the major product families we service.
Rotary Evaporator Control Systems
BUCHI rotary evaporator controllers manage temperature, vacuum, rotation speed, and condenser flow. Common failures include thermostat sensor faults, relay burnout on heating circuits, vacuum transducer drift, and condenser water valve sticking. Display panels frequently show sensor error codes or unstable temperature readings.
Spray Dry Electronics Module
BUCHI B-191 and B-290 spray dryers use integrated PLC-based systems controlling inlet temperature, atomizer pressure, feed rate, and product collection. Typical faults include temperature sensor nonlinearity, feed pump driver failure, pressure transducer miscalibration, and main control board capacitor degradation causing temperature swings.
Vacuum Regulation and Pump Driver Systems
BUCHI vacuum control modules regulate chamber pressure for evaporation and drying processes. Failures include vacuum transducer drift leading to pressure setpoint errors, solenoid valve sticking on vacuum release, and proportional valve hysteresis causing oscillation in chamber pressure stability.
Heating Bath and Temperature Control Boards
BUCHI heating bath controllers maintain precise temperature for jacketed evaporator bowls and condenser cooling. Typical issues include heating element relay failure, PTC thermistor sensor aging, proportional heater valve sticking, and control board micro-fuse blown due to thermal cycling stress.
Distillation and Separation System Boards
BUCHI distillation controllers manage multi-stage separation with independent temperature zones and product fraction collection. Common faults include fraction collector solenoid malfunction, temperature sensor multiplexing board failure, and analog-to-digital converter drift causing inaccurate boiling point detection.
Why Choose Synchronics for BUCHI Repairs?
PCB-Level Expertise
We repair down to the component level — not just swap boards. Our engineers identify root causes, replace failed IGBTs, capacitors, processors, and gate drivers on BUCHI equipment.
Fast Turnaround
Standard 7–10 working days. Express 3–5 days available for critical breakdowns. Emergency same-day/next-day service for unplanned downtime.
6-Month Warranty
Every repaired unit ships with a 6-month comprehensive warranty on parts and labour. Our repair success rate is over 94% across all brands.
All-India Service
Couriered repairs accepted from any city in India. Doorstep pickup available in Vadodara, Mumbai, Pune, Ahmedabad, Surat, Chennai, and more.
Common BUCHI Equipment Faults We Fix
Based on 30+ years of repair data, these are the most frequent failure modes we see in BUCHI equipment arriving at our workshop.
- ✓Rotary evaporator temperature sensor drift and instability — BUCHI Pt100 RTD sensors degrade over 3-5 years due to condensate ingress, thermal cycling, and platinum film micro-fractures. Sensor values oscillate or plateau, preventing accurate temperature feedback to the proportional heating valve.
- ✓Spray dryer heater relay chattering and coil burnout — BUCHI B-191 heating circuits experience relay chatter when control board signal voltage sags below 10V (typically from aged electrolytic capacitors). High-frequency switching causes relay contacts to arc, leading to contact fusion and complete heater shutdown.
- ✓Vacuum transducer nonlinear output and pressure setpoint hunting — BUCHI vacuum transducers (0-1 bar, 4-20mA output) develop zero-offset drift after 2000+ operating hours due to sensor diaphragm micro-creep and electronics board calibration shift. This causes proportional vacuum control valve to hunt between open and closed states.
- ✓BUCHI controller display panel blackout or corrupted characters — Display connector corrosion from vapor ingress, cold solder joints on LCD header pins from thermal shock, and occasionally firmware corruption in older R-200 controllers. Panel segments either fail completely or show random character glitches mid-operation.
- ✓Spray dryer feed pump driver failure and loss of atomization — BUCHI peristaltic pump drivers (typically 12VDC PWM circuits) fail when pump motor stalls due to blockage, causing excessive back-EMF that kills the driver MOSFET. Aging electrolytic smoothing capacitors also contribute to noisy 12V rail voltage.
- ✓Proportional heating valve sticking at fixed heating output — BUCHI proportional heater valves accumulate mineral scale and decomposition byproducts in the solenoid plunger bore, especially in hard-water areas common in Indian industrial regions. Valve response becomes sluggish or locks in fully-open position, causing runaway temperature.
How We Repair Your BUCHI Unit
Receive & Log
Your unit is logged into our tracking system with a unique job number. You receive WhatsApp / email updates at every stage.
Fault Diagnosis
Board-level diagnosis using oscilloscopes, LCR meters, and thermal cameras. Root cause identified before any repair begins.
Component Repair
Faulty ICs, capacitors, MOSFETs, IGBTs, and gate drivers replaced with genuine or equivalent-spec components.
Full-Load Test
Unit tested under rated load with original or equivalent motor. All parameters verified. 6-month warranty issued.
Industries Using BUCHI Equipment
We serve plant maintenance teams across all major industries where BUCHI automation is deployed.
Frequently Asked Questions — BUCHI Repairs
Do you repair BUCHI equipment anywhere in India?+
Yes. Synchronics repairs the complete BUCHI product range including rotary evaporators, spray dryers, distillation systems, vacuum controllers, and heating baths. We offer PAN India door pickup from Mumbai, Delhi, Pune, Chennai, Hyderabad, Ahmedabad, Bangalore, Kolkata, and all other tier-1 and tier-2 cities. Equipment is repaired in our ISO-certified facility in Vadodara, Gujarat, with 7-10 day standard turnaround.
What is the typical repair cost for a BUCHI rotary evaporator controller board?+
BUCHI rotary evaporator controller repairs typically cost INR 8,000 - 18,000 depending on the fault. Sensor replacement alone is INR 3,000-6,000. Relay or capacitor replacement runs INR 5,000-12,000. Full board replacement (if unfixable) costs INR 25,000-45,000. Synchronics provides a detailed diagnostic report and cost estimate within 48 hours of receiving equipment.
Can you repair BUCHI spray dryer B-191 electronics without sending the entire dryer?+
Yes. The B-191 control module and heating circuit board are easily removable. Simply disconnect the module, pack it securely, and ship to Synchronics. We test it on a BUCHI simulator test rig, repair the fault (heating relay, temperature sensor, or PLC board), and return it ready to install. Most spray dryer downtime can be reduced to 5-7 days.
Do you stock BUCHI spare parts or only repair components?+
Synchronics primarily focuses on repair and remanufacturing of BUCHI electronics. However, we maintain a stock of critical spares including Pt100 sensors, relays, solenoid valves, and electrolytic capacitors for emergency repairs. For OEM BUCHI parts, we work with authorized distributors across India and can expedite procurement if needed alongside repair work.
What makes Synchronics the right choice for BUCHI repairs versus sending to BUCHI directly?+
Synchronics offers 40% faster turnaround than BUCHI's authorized service centers, full transparency on repair costs, and local technical support in Gujarat. Our engineers have repaired 500+ BUCHI units and maintain detailed fault databases specific to BUCHI models. We provide 12-month warranty on all repairs (vs. 6 months typical) and emergency same-day pickups from Vadodara region — crucial for pharmaceutical and research facilities with tight production schedules.
How do I send my BUCHI unit for repair?+
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.
What is the cost of repairing a BUCHI drive or PLC?+
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.
What warranty do you provide on BUCHI repairs?+
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.
Do you provide a no-fix, no-fee guarantee?+
Yes. If we cannot repair your BUCHI 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.
BUCHI Repair Catalog
Showing 1–5 of 5 BUCHI products
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Get Your Equipment
Back in Action — Fast
Send us your faulty industrial electronics. Our engineers will diagnose it and provide a detailed quote within 24 hours — with no obligation to proceed.
Free Evaluation
No obligation
48hr Turnaround
Fastest in India
6-Month Warranty
Every repair
No Fix, No Charge
Zero risk policy
Pan-India Pickup
Doorstep service