CHEN HSONG Repair Services India
Chen Hsong is a global leader in injection molding machine manufacturing and control electronics, headquartered in Taiwan with significant operations across Asia. Their advanced proportional valve systems, hydraulic controllers, and PLC-based process monitoring units are widely deployed in Indian plastics manufacturing, automotive component production, and consumer goods factories. Chen Hsong equipment is recognised for precision pressure control and cycle-time optimisation in high-volume production environments.
Chen Hsong is a global leader in injection molding machine manufacturing and control electronics, headquartered in Taiwan with significant operations across Asia. Their advanced proportional valve systems, hydraulic controllers, and PLC-based process monitoring units are widely deployed in Indian plastics manufacturing, automotive component production, and consumer goods factories. Chen Hsong equipment is recognised for precision pressure control and cycle-time optimisation in high-volume production environments.
Synchronics Electronics specialises in repairing the complete Chen Hsong industrial control ecosystem — including proportional directional control valves, pressure compensators, injection control units, and integrated PLC systems. Our 180+ engineers have extensive field experience restoring Chen Hsong hydraulic and electronic components across Indian manufacturing facilities. We understand the critical role Chen Hsong systems play in injection cycle consistency and offer rapid turnaround repairs to minimise production downtime.
Expert Chen Hsong proportional valve and PLC controller repair across India.
CHEN HSONG Product Lines We Repair
Our engineers are trained on the full CHEN HSONG product range. Below are the major product families we service.
Proportional Directional Control Valves
Chen Hsong proportional solenoid-operated directional control valves regulate mold opening, closing, and clamping pressure. Common faults include spool stiction, solenoid coil burnout, and leakage across internal spool seals affecting injection accuracy.
Pressure Compensators and Relief Systems
These precision regulation units maintain constant injection pressure and protect hydraulic circuits from overpressure. Failures often stem from pilot line blockage, cartridge wear, and contaminated hydraulic fluid degrading control accuracy.
Injection Control Units (ICU)
Chen Hsong ICU modules integrate pressure feedback, temperature sensing, and solenoid control for precise injection profile management. Typical faults include sensor signal loss, amplifier board failures, and calibration drift causing injection defects.
Hydraulic Pressure Sensors and Transducers
4-20mA and 0-10V pressure transducers provide real-time feedback to Chen Hsong control systems. Failures include electrical connector corrosion, diaphragm rupture, and zero-offset drift in high-temperature mold environments.
PLC and HMI Integration Modules
Chen Hsong PLC interfaces and touchscreen HMI units enable remote monitoring and parameter adjustment of injection cycles. Common issues are terminal block corrosion, SD card failures, and firmware version incompatibility causing communication loss.
Proportional Pump Control Systems
Load-sensing pump controllers maintain optimal hydraulic flow during injection and hold phases. Faults include pilot pressure fluctuations, solenoid response lag, and filter element blockage reducing system efficiency.
Why Choose Synchronics for CHEN HSONG 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 CHEN HSONG 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 CHEN HSONG Equipment Faults We Fix
Based on 30+ years of repair data, these are the most frequent failure modes we see in CHEN HSONG equipment arriving at our workshop.
- ✓Proportional valve spool stiction and sluggish response — Hydraulic fluid degradation, varnish buildup, and moisture contamination in Chen Hsong proportional directional valves restrict spool movement and slow solenoid response time, causing uneven mold pressure and injection defects.
- ✓Pressure sensor zero offset and signal drift — High mold temperatures, thermal cycling, and corrosive coolant exposure degrade pressure transducer diaphragm linearity in Chen Hsong ICU systems, causing calibration drift and false pressure readings that disrupt injection control algorithms.
- ✓Solenoid coil burnout and no electrical response — Voltage spikes from PLC switching transients, prolonged solenoid energization, and inadequate heat dissipation in Chen Hsong proportional valve coils cause insulation breakdown and open-circuit failures, disabling pilot pressure control.
- ✓HMI touchscreen communication loss and blank display — Ethernet connector pin corrosion, SD card file system corruption, and firmware version mismatches between Chen Hsong PLC and HMI modules break real-time data exchange and render process monitoring panels inoperative.
- ✓Pressure relief valve chattering and unstable pilot pressure — Worn cartridge spool edges, contamination in pilot line orifices, and loose piloting spring assemblies in Chen Hsong relief systems cause oscillating pressure spikes that damage seals and induce injection pressure fluctuations.
- ✓Load-sensing pump controller lag and slow injection response — Proportional pump compensator spool wear, leakage in load-sensing pilot lines, and dirt accumulation in Chen Hsong pump valve spools delay feedback response and cause inconsistent injection speed ramp-up across multiple cycles.
How We Repair Your CHEN HSONG 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 CHEN HSONG Equipment
We serve plant maintenance teams across all major industries where CHEN HSONG automation is deployed.
Frequently Asked Questions — CHEN HSONG Repairs
Do you repair Chen Hsong equipment anywhere in India?+
Yes. Synchronics repairs the complete Chen Hsong control system portfolio — proportional valves, relief systems, ICU controllers, pressure sensors, and PLC-HMI modules. We offer PAN India door pickup from Mumbai, Delhi, Pune, Chennai, Hyderabad, Ahmedabad, Surat, and all major industrial cities. All repairs are completed at our 180+ engineer facility in Vadodara, Gujarat with same-day diagnostic reporting and 7-10 day turnaround for standard faults.
What Chen Hsong proportional valve problems can Synchronics fix?+
Synchronics restores Chen Hsong proportional directional and pressure control valves with spool stiction, solenoid coil burnout, pilot line blockage, cartridge wear, and seal leakage. We disassemble, ultrasonic clean, inspect spools under magnification, replace worn seals and pilot springs, and pressure test on our dedicated bench rig. Most proportional valve repairs restore full performance within 5-7 days.
Can Synchronics calibrate Chen Hsong pressure sensors and recalibrate transducers?+
Yes. Synchronics recalibrates and re-ranges Chen Hsong 4-20mA and 0-10V pressure transducers using NIST-traceable pressure standards. We repair zero offset drift, restore linearity across full range, replace damaged diaphragms, and issue calibration certificates. Sensor repairs typically take 3-4 days and verify ±0.5% accuracy.
What is the typical Chen Hsong HMI and PLC repair cost in India?+
Chen Hsong HMI and PLC repairs at Synchronics range from Rs 5,000-25,000 depending on fault severity. Touchscreen issues, Ethernet connector corrosion, and firmware re-imaging typically cost Rs 5,000-10,000. Full module replacement for internal board failure runs Rs 15,000-25,000. Contact our Vadodara facility for accurate quote after fault diagnosis.
How long does Chen Hsong injection control unit (ICU) repair take?+
Synchronics typically repairs Chen Hsong ICU faults in 7-10 business days. Sensor signal loss and amplifier board failures are diagnosed within 24 hours. Component-level repairs include driver stage recalibration, proportional amplifier testing, and full load testing on representative hydraulic mock-ups. Express 3-5 day service available for critical production downtime scenarios.
How do I send my CHEN HSONG 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 CHEN HSONG 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 CHEN HSONG 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 CHEN HSONG 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.
CHEN HSONG Repair Catalog
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We repair the full range of CHEN HSONG 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