DUPLOMATIC Repair Services India
Duplomatic is a renowned Italian manufacturer of hydraulic directional control valves, proportional solenoid valves, and integrated electronic control systems. With over five decades of innovation, Duplomatic serves global industrial automation, machinery, and mobile equipment sectors. Strong presence in Indian manufacturing, particularly in textile machinery, packaging lines, and industrial hydraulics applications across industrial hubs.
Duplomatic is a renowned Italian manufacturer of hydraulic directional control valves, proportional solenoid valves, and integrated electronic control systems. With over five decades of innovation, Duplomatic serves global industrial automation, machinery, and mobile equipment sectors. Strong presence in Indian manufacturing, particularly in textile machinery, packaging lines, and industrial hydraulics applications across industrial hubs.
Synchronics Electronics specializes in repairing the complete Duplomatic product portfolio including proportional valve controllers, hydraulic spool position feedback systems, and integrated solenoid driver electronics. Our 180+ engineers possess hands-on expertise with Duplomatic proportional and directional control systems. We repair all Duplomatic industrial electronics modules, provide rapid turnaround, and support critical Indian manufacturing operations with genuine technical diagnostics.
Duplomatic proportional valve electronics and hydraulic control system repair specialists across India.
DUPLOMATIC Product Lines We Repair
Our engineers are trained on the full DUPLOMATIC product range. Below are the major product families we service.
Proportional Directional Control Valves (PVD/PVG Series)
Duplomatic PVD and PVG proportional valves control flow direction and pressure in hydraulic systems. Common repair issues include solenoid coil failures, spool position sensor drift, electronic amplifier card faults, and proportional control signal loss causing erratic machine operation.
Solenoid Driver and Amplifier Modules (DIN Rail Series)
Duplomatic DIN-mount electronic controllers amplify proportional solenoid signals for valve actuation. Repair focuses on relay failure, PWM output faults, analog input signal conditioning errors, and CAN/Modbus communication breakdowns in integrated control cabinets.
Integrated Proportional Valve Stacks (Sandwich Modules)
Compact sandwich-mounted proportional valves combine directional control with pressure relief and flow control electronics. Typical failures include internal leakage due to spool wear, proportional solenoid coil burnout, and feedback LVDT sensor calibration loss affecting closed-loop control.
Electronic Feedback and Spool Position Sensors (LVDT Series)
Duplomatic LVDT spool position transducers provide proportional feedback for closed-loop valve control. Faults include sensor cable damage, LVDT signal loss, zero-point drift causing valve hunting, and amplifier input channel failures disrupting position feedback loop.
Pressure Relief Valve Electronics (Proportional Relief Series)
Duplomatic proportional relief valves integrate solenoid control with pressure sensing for dynamic system pressure management. Common issues are proportional solenoid hysteresis, pressure transducer signal noise, electronic controller gain mismatch, and relief valve cracking pressure drift.
Integrated Control Cabinets and PLC Interfaces
Duplomatic control cabinets house multiple proportional valve drivers, safety modules, and PLC interface boards. Repair addresses controller board failures, relay chatter, fieldbus communication errors, 24VDC power supply issues, and cross-channel signal coupling problems.
Why Choose Synchronics for DUPLOMATIC 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 DUPLOMATIC 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 DUPLOMATIC Equipment Faults We Fix
Based on 30+ years of repair data, these are the most frequent failure modes we see in DUPLOMATIC equipment arriving at our workshop.
- ✓Proportional solenoid coil open-circuit failure — Duplomatic solenoid coils experience thermal stress in high-cycle proportional valve applications. Coil insulation breakdown occurs from moisture ingress at connector, vibration fatigue of lead wires, or sustained high-current PWM switching in proportional control mode.
- ✓LVDT spool position sensor signal loss or drift — Duplomatic LVDT transducers mounted on proportional valve spools suffer from connector corrosion in humid textile mill and food processing environments. Cable insulation degradation and ferrite core saturation from adjacent electromagnetic fields cause signal zero-drift and linearity loss.
- ✓Proportional valve erratic flow or pressure control — Duplomatic proportional directional valves exhibit control instability when solenoid proportional current feedback is absent or miscalibrated. Amplifier board gain settings drift, PWM frequency becomes mismatched to solenoid natural frequency, or spool friction threshold changes from internal silt accumulation.
- ✓Control amplifier relay chatter or intermittent output — Duplomatic DIN-rail amplifier relay contacts experience mechanical bounce under high switching frequency proportional control. Contact material erosion, spring fatigue, and electromagnetic coil weakening cause intermittent relay engagement and proportional current dropout.
- ✓24VDC power supply failure in proportional valve control cabinet — Industrial environments in Indian plants expose Duplomatic control cabinets to voltage transients and supply instability. Power supply topologies fail from capacitor ripple voltage degradation, transformer insulation breakdown, or rectifier diode failure under unfiltered AC mains.
- ✓CAN or Modbus communication timeout in integrated control systems — Duplomatic proportional valve modules communicating via fieldbus experience message collisions and timeout errors from electrical noise on twisted-pair cables. Ground loop current injection and missing 120-ohm termination resistors cause bus signal reflection and frame corruption.
How We Repair Your DUPLOMATIC 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 DUPLOMATIC Equipment
We serve plant maintenance teams across all major industries where DUPLOMATIC automation is deployed.
Frequently Asked Questions — DUPLOMATIC Repairs
Do you repair Duplomatic equipment anywhere in India?+
Yes. Synchronics repairs the complete Duplomatic product range including proportional directional control valves, solenoid amplifier modules, LVDT feedback systems, and integrated control cabinets. We offer PAN-India door-to-door pickup and delivery from Mumbai, Delhi, Pune, Chennai, Hyderabad, Ahmedabad, Vadodara, Jaipur, Kochi, Bangalore, Kolkata, and all other major industrial cities. All repairs are performed at our Vadodara, Gujarat facility with rapid turnaround.
What is the typical turnaround time for Duplomatic proportional valve repair?+
Synchronics completes most Duplomatic proportional valve repairs within 5-7 working days. Simple solenoid coil replacement or LVDT sensor recalibration requires 2-3 days. Complex integrated control cabinet diagnostics and amplifier module reprogramming may take 7-10 days. We provide daily status updates via email and phone and offer expedited service for critical production stoppages at textile mills and packaging plants.
Can Synchronics repair Duplomatic PVD and PVG proportional valve electronics?+
Yes, absolutely. Duplomatic PVD-16, PVD-20, PVG-16, and PVG-32 proportional valves are core competencies for Synchronics. We repair proportional solenoid drivers, spool position feedback electronics, pilot pressure regulators, and integrated valve controller boards. We perform full functional testing using calibrated proportional command signals and pressure transducers to verify proportional response curve matches Duplomatic specifications before shipment.
What warranty do you offer on Duplomatic repairs?+
Synchronics provides 12 months warranty on all Duplomatic equipment repairs covering parts and labor. If a repaired unit fails within warranty period, we provide free repair or replacement. Warranty covers manufacturing defects identified during commissioning but excludes damage from external electrical surges, incorrect power supply voltage, or user-induced mechanical damage. Customers receive signed test certificates documenting pre and post-repair specifications.
Do you stock Duplomatic spare parts for common failures?+
Synchronics stocks critical Duplomatic spare parts including proportional solenoid coils, LVDT spool position transducers, amplifier relay modules, 24VDC power supply cards, and DIN-rail control modules. For non-stock items, we source genuine Duplomatic parts directly through authorized channels with 3-5 day delivery in India. We prioritize original Duplomatic components to maintain proportional valve performance and reliability in Indian industrial applications.
How do I send my DUPLOMATIC 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 DUPLOMATIC 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 DUPLOMATIC 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 DUPLOMATIC 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.
DUPLOMATIC Repair Catalog
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We repair the full range of DUPLOMATIC 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