ASSELIN Repair Services India
Asselin is a French manufacturer specializing in hydraulic proportional valves, directional control systems, and industrial automation components. Established in 1947, Asselin has built a reputation for precision engineering in fluid power technology. Their products are widely deployed across Indian manufacturing, textile, packaging, and heavy machinery sectors where reliable hydraulic control is critical to operations.
Asselin is a French manufacturer specializing in hydraulic proportional valves, directional control systems, and industrial automation components. Established in 1947, Asselin has built a reputation for precision engineering in fluid power technology. Their products are widely deployed across Indian manufacturing, textile, packaging, and heavy machinery sectors where reliable hydraulic control is critical to operations.
Synchronics Electronics repairs the complete Asselin proportional valve and control system portfolio, including directional control valves, pressure regulators, and integrated hydraulic manifolds. Our 180+ engineers have extensive experience troubleshooting spool stiction, solenoid coil failures, and electrical integration issues in Asselin equipment. Indian plant managers and maintenance teams rely on Synchronics for rapid turnaround and technical expertise with Asselin hydraulic controls across pan-India operations.
Expert Asselin proportional valve and hydraulic control system repairs across all Indian industrial sectors.
ASSELIN Equipment We Repair — By Category
ASSELIN Product Lines We Repair
Our engineers are trained on the full ASSELIN product range. Below are the major product families we service.
Asselin Proportional Directional Control Valves
NG6 and NG10 sized proportional directional control valves with integrated electronics and spool feedback. Common issues include solenoid coil burnout, spool stiction under contaminated oil conditions, and proportional amplifier card failures causing loss of directional control.
Asselin Proportional Pressure Reducing Valves
Integrated pressure control valves with electronic compensators for multi-function hydraulic circuits. Typical faults include proportional spool drift, amplifier cartridge leakage, and feedback transducer signal loss.
Asselin Proportional Flow Control Valves
Meter-in and meter-out proportional flow control for synchronized multi-actuator applications in Indian textile and packaging machinery. Common failures: electronic amplifier drift, proportional solenoid hysteresis, and feedback LVDT sensor degradation.
Asselin Integrated Hydraulic Manifolds with Electronics
Multi-function sandwich and cavity manifolds incorporating proportional valves, shuttle logic, and onboard amplifier cards. Repair challenges include internal valve leakage, amplifier card corrosion, and cross-port pressure imbalance after component replacement.
Asselin Electronic Proportional Amplifiers
Standalone proportional control amplifiers for Asselin solenoid proportional valves. Issues include capacitor aging, reference voltage drift, feedback signal saturation, and PWM switching frequency instability under industrial EMI environments.
Asselin Transducer and Feedback Systems
Pressure transducers, LVDT displacement sensors, and proportional spool position feedback modules integrated with Asselin valves. Common faults: sensor cable insulation breakdown, zero drift in manufacturing environments, and 4-20mA signal conditioning circuit failures.
Why Choose Synchronics for ASSELIN 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 ASSELIN 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 ASSELIN Equipment Faults We Fix
Based on 30+ years of repair data, these are the most frequent failure modes we see in ASSELIN equipment arriving at our workshop.
- ✓Proportional solenoid coil open circuit failure — Asselin proportional solenoids experience insulation breakdown due to vibration, thermal cycling in Indian summer conditions, and contaminated hydraulic fluid ingress. The coil resistance drops to zero, preventing solenoid actuation.
- ✓Spool stiction and sluggish proportional response — Hydraulic fluid contamination, varnish deposits from thermal degradation, and microscopic debris lodging between Asselin spool and bore wall reduce proportional control accuracy and increase deadband. Common in Indian plants with inadequate filtration or long maintenance intervals.
- ✓Proportional amplifier card logic failure and no proportional output — Asselin proportional amplifier cards fail due to capacitor aging, moisture ingress in humid Indian coastal plants, solder joint fatigue from thermal cycling, and transient voltage spikes during solenoid switching or nearby motor starts.
- ✓Proportional spool position feedback signal loss or drift — Asselin LVDT and inductive displacement sensors experience connector corrosion, cable insulation breakdown from chemical exposure in food and pharma plants, and sensor coil resistance change due to moisture or thermal shock.
- ✓Pilot pressure loss and proportional valve not responding to command — Internal leakage in Asselin proportional valve spool seals, shuttle logic blockage, or pilot pressure regulator malfunction reduces pilot signal, causing proportional solenoid unable to overcome load. Hydraulic fluid contamination accelerates seal degradation.
- ✓Disproportionate or oscillating proportional output and control instability — Asselin proportional amplifier gain set incorrectly, feedback transducer signal noisy due to EMI from nearby VFDs, or proportional solenoid hysteresis causing control lag and hunting. Common in Indian plants with poor grounding or long cable runs to remote proportional valves.
How We Repair Your ASSELIN 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 ASSELIN Equipment
We serve plant maintenance teams across all major industries where ASSELIN automation is deployed.
Frequently Asked Questions — ASSELIN Repairs
Do you repair Asselin proportional valves and hydraulic controls anywhere in India?+
Yes. Synchronics repairs the complete Asselin proportional valve range including directional control valves, pressure reducers, flow control valves, and integrated hydraulic manifolds. We offer PAN India door-to-door pickup and repair service from our facility in Vadodara, Gujarat. We serve customers in Mumbai, Delhi, Pune, Chennai, Hyderabad, Ahmedabad, Bangalore, Kolkata, and all other Indian cities. Fast turnaround on Asselin repairs ensures your hydraulic systems get back online quickly.
What is the typical turnaround time for Asselin proportional valve repair?+
Synchronics delivers most Asselin proportional valve repairs within 5-7 working days from receipt, depending on fault complexity. Simple issues like solenoid coil replacement or amplifier card failure may be completed in 2-3 days. Complex manifold repairs involving internal spool rework and multi-stage testing take 7-10 days. We offer express turnaround options for critical plant shutdowns — contact our technical team for availability and cost.
How do you diagnose Asselin hydraulic proportional valve faults?+
Synchronics performs comprehensive diagnostics on Asselin equipment: electrical continuity and resistance testing on solenoid coils, proportional amplifier voltage and signal measurements, pilot pressure drop testing, spool position feedback linearity checks, and visual inspection for contamination and seal degradation. We use precision instruments and Asselin technical documentation to isolate root causes. Test reports are provided to customers so they understand what failed and why.
Can you repair Asselin proportional amplifier cards and electronic controllers?+
Yes. Synchronics specializes in Asselin proportional amplifier card repair including capacitor replacement, solder joint rework, reference voltage recalibration, and PWM output frequency adjustment. We test amplifier performance using dedicated test fixtures and proportional solenoid load simulators. Repaired Asselin amplifier cards undergo 48-hour burn-in before return to ensure long-term reliability in Indian industrial environments.
What warranty do you offer on Asselin proportional valve repairs?+
Synchronics provides 12 months defect warranty on all Asselin proportional valve repairs. If the same fault reoccurs within 12 months due to our workmanship, we repair it free of charge (excluding hydraulic fluid contamination or mechanical damage). Warranty covers Asselin solenoid coils, proportional amplifier cards, seals, transducers, and manifold assemblies. Terms apply: customer must maintain proper hydraulic filtration and fluid condition per Asselin recommendations.
How do I send my ASSELIN 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 ASSELIN 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 ASSELIN 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 ASSELIN 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.
ASSELIN Repair Catalog
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Other Brands We Repair in the Same Categories
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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
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48hr Turnaround
Fastest in India
6-Month Warranty
Every repair
No Fix, No Charge
Zero risk policy
Pan-India Pickup
Doorstep service