HUNKELER Repair Services India
Hunkeler is a Switzerland-based specialist in web handling, converting, and finishing equipment for the printing, packaging, and industrial production sectors. Founded in 1964, Hunkeler designs modular systems for slitting, rewinding, laminating, and edge-guiding applications used across global converting lines. Their precision-engineered systems are critical to high-speed production environments, with significant deployment in Indian packaging, label, and specialty printing operations.
Hunkeler is a Switzerland-based specialist in web handling, converting, and finishing equipment for the printing, packaging, and industrial production sectors. Founded in 1964, Hunkeler designs modular systems for slitting, rewinding, laminating, and edge-guiding applications used across global converting lines. Their precision-engineered systems are critical to high-speed production environments, with significant deployment in Indian packaging, label, and specialty printing operations.
Synchronics Electronics specializes in repair and rehabilitation of Hunkeler control systems, servo drives, proximity sensors, and electrical components integrated within converting lines. Our 180+ engineers understand Hunkeler's proprietary encoder feedback loops, tension control modules, and PLC-based rewinding logic. We repair Hunkeler systems deployed across Indian manufacturing without requiring costly downtime or overseas support—delivering rapid diagnostics and genuine component sourcing from our Vadodara facility.
Expert repair of Hunkeler web handling drives, encoders, and tension control modules across India.
HUNKELER Product Lines We Repair
Our engineers are trained on the full HUNKELER product range. Below are the major product families we service.
HUNKELER Rewinding & Slitting Systems
Modular rewinding and slitting units equipped with servo motors, encoder feedback systems, and precision tension control. Common failures include encoder signal loss, servo amplifier faults, and mechanical brake wear affecting speed stability during high-speed production runs.
HUNKELER Laminating & Coating Systems
Lamination and coating modules with integrated heating elements, pressure rollers, and nip control electronics. Typical repair issues: heating element failure, nip pressure sensor malfunction, and web-tracking sensor errors causing misalignment.
HUNKELER Edge-Guide & Tension Systems
Precision edge-guiding and web-tension regulation powered by stepper motors and analog feedback sensors. Faults include loss of edge-guide signal, stepper driver burnout, and potentiometric sensor drift affecting web centering accuracy.
HUNKELER Control & Drive Electronics
PLC controllers, servo amplifiers, and stepper drivers managing Hunkeler line operations. Common failures: capacitor degradation in power supplies, relay contact wear, firmware corruption, and DC bus voltage instability under load.
HUNKELER Encoder & Sensor Systems
High-resolution rotary encoders, proximity sensors, and web-break detection switches critical to accurate speed feedback and emergency stop circuits. Failures include encoder window contamination, bearing wear causing mechanical slippage, and connector corrosion.
Why Choose Synchronics for HUNKELER 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 HUNKELER 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 HUNKELER Equipment Faults We Fix
Based on 30+ years of repair data, these are the most frequent failure modes we see in HUNKELER equipment arriving at our workshop.
- ✓Encoder signal loss during high-speed rewinding — Hunkeler rotary encoders are exposed to dust and moisture in converting environments. Contaminated encoder windows, bearing wear, or corroded connector pins interrupt speed feedback signals, causing tension regulation failure and uneven nip pressure.
- ✓Servo amplifier thermal shutdown during lamination runs — Hunkeler servo amplifiers dissipate significant heat during precision nip control on laminating modules. Thermal paste degradation, blocked heatsink fins, or failed cooling fans cause temperature thresholds to trip, halting production unexpectedly.
- ✓Web-tracking error and edge-guide misalignment — Hunkeler edge-guide systems rely on stepper motors and analog position feedback sensors. Sensor drift, stepper driver IC burnout (often caused by surge spikes), or mechanical linkage wear cause systematic misalignment and edge-guide oscillation.
- ✓Tension control oscillation and hunting behavior — Hunkeler tension control loops integrate multiple feedback elements—load cells, dancer rollers, and proportional valves. PID loop instability, load-cell signal noise, or valve spool stiction cause erratic tension swings affecting product quality.
- ✓PLC controller firmware corruption or program loss — Power transients, UPS failures, or corrupted firmware updates in Hunkeler ControlBox PLC modules can erase program memory or damage internal flash storage, leaving lines non-operational.
- ✓Heating element failure in laminating nip — Hunkeler lamination systems use resistance heaters or IR elements for adhesive activation. Thermal cycling, moisture ingress, or open-circuit heating elements reduce nip temperature, causing poor laminate adhesion or complete heating system failure.
How We Repair Your HUNKELER 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 HUNKELER Equipment
We serve plant maintenance teams across all major industries where HUNKELER automation is deployed.
Frequently Asked Questions — HUNKELER Repairs
Do you repair Hunkeler equipment anywhere in India?+
Yes. Synchronics repairs the full Hunkeler product range—servo drives, PLC controllers, encoders, tension systems, and laminating modules. We offer PAN India door pickup and delivery from Mumbai, Delhi, Pune, Chennai, Hyderabad, Ahmedabad, Bangalore, and all other metros. All repairs are performed at our certified facility in Vadodara, Gujarat, with 24-48 hour turnaround for most standard repairs.
What warranty do you offer on Hunkeler servo drive repairs?+
Synchronics provides 12 months full functional warranty on all repaired Hunkeler servo amplifiers and control modules. We replace or recondition all failing components—capacitors, drivers, thermal elements—and test units under full load simulation. If a repair fails within the warranty period, we replace the module free of charge.
Can you supply genuine Hunkeler spare parts alongside repair service?+
Yes. Synchronics maintains inventory of critical Hunkeler spares including encoders, servo amplifier modules, stepper drivers, sensor elements, and heating cartridges. We source directly from authorized Hunkeler distributors and validate part authenticity. For faster turnaround, we often repair customer-supplied parts rather than waiting for new stock.
Do you repair Hunkeler edge-guide sensors and tension load cells?+
Yes. Hunkeler edge-guide proximity sensors and tension load cells are common failure points in converting lines. Synchronics recalibrates analog sensors, tests load-cell bridges for drift, and replaces failed sensor elements. We validate sensor output against Hunkeler specifications before reinstallation, ensuring web-tracking accuracy within +/- 2mm tolerance.
Can you help optimize Hunkeler PLC tension control loops for better product quality?+
Absolutely. Beyond repair, Synchronics offers PID tuning and control logic optimization for Hunkeler ControlBox modules. We analyze historical tension data, identify oscillation patterns, and rewrite PLC algorithms for faster response and lower hunting. This service is especially valuable for multi-ply laminates and precision label applications where tension consistency directly impacts yield.
How do I send my HUNKELER 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 HUNKELER 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 HUNKELER 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 HUNKELER 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.
HUNKELER Repair Catalog
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We repair the full range of HUNKELER industrial electronics — even if the specific model is not yet in our catalog. Send us the unit details and we'll confirm repairability within 24 hours.
Free evaluation • 6-month warranty • PAN India pickup
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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