ROCKWIN Repair Services India
ROCKWIN is a Taiwanese specialist in hydraulic proportional directional control valves, pneumatic automation components, and motion control systems. Since 1987, ROCKWIN has supplied precision fluid power solutions to industrial manufacturers across Asia, Europe, and India. Their proportional valve technology is widely integrated into packaging machinery, injection moulding presses, and heavy-duty manufacturing equipment throughout Indian industry.
ROCKWIN is a Taiwanese specialist in hydraulic proportional directional control valves, pneumatic automation components, and motion control systems. Since 1987, ROCKWIN has supplied precision fluid power solutions to industrial manufacturers across Asia, Europe, and India. Their proportional valve technology is widely integrated into packaging machinery, injection moulding presses, and heavy-duty manufacturing equipment throughout Indian industry.
Synchronics Electronics repairs the full ROCKWIN fluid power control range including proportional directional valves, solenoid pilot systems, electronic valve controllers, and integrated motion control modules. Our 180+ engineers have diagnosed and restored hundreds of ROCKWIN proportional valve assemblies and electronic control cards across textile mills, automotive suppliers, and packaging plants in India. We stock ROCKWIN spare parts and offer same-day fault diagnosis for plants across Maharashtra, Gujarat, Tamil Nadu, and North India.
Expert repair of ROCKWIN proportional valves and electronic motion control systems across India.
ROCKWIN Product Lines We Repair
Our engineers are trained on the full ROCKWIN product range. Below are the major product families we service.
ROCKWIN Proportional Directional Control Valves (NG6 / NG10)
High-precision spool-type proportional directional control valves with integrated electronics. Used in injection moulding machines, hydraulic presses, and packaging lines. Common faults include solenoid coil burnout, spool stiction from contamination, and proportional amplifier card failures.
ROCKWIN Proportional Pressure Relief Valves
Pilot-operated proportional relief valves for load sensing and pressure control in closed-loop hydraulic circuits. Commonly integrated into packaging machinery and CNC press systems. Repair issues include pilot solenoid wear, proportional spool stiction, and electronic control signal loss.
ROCKWIN Electronic Valve Controller Cards
Standalone electronic amplifier and proportional control modules for ROCKWIN proportional valves. These cards interface with PLC / CNC systems and regulate solenoid duty cycle. Failures include capacitor electrolyte leakage, MOSFET burnout, and feedback signal processing errors.
ROCKWIN Pneumatic Proportional Flow Control Valves
Air-operated proportional flow regulators for precision motion control in assembly lines and pneumatic automation rigs. Subject to internal poppet wear, diaphragm rupture, and electronic sensor malfunction in dusty environments.
ROCKWIN Integrated Hydraulic Motion Modules
Compact manifold-mounted proportional control units combining valve, electronics, and instrumentation in a single block. Used in multi-axis injection moulding and transfer press equipment. Repair complexity includes manifold internal leakage, blocked calibration ports, and integrated amplifier PCB faults.
Why Choose Synchronics for ROCKWIN 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 ROCKWIN 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 ROCKWIN Equipment Faults We Fix
Based on 30+ years of repair data, these are the most frequent failure modes we see in ROCKWIN equipment arriving at our workshop.
- ✓Proportional valve solenoid coil burnout — Continuous pilot pressure in one direction combined with high ambient temperature causes coil insulation breakdown. This is especially common in summer months in Indian textile mills and moulding shops where cooling is inadequate. Over-voltage spikes from unfiltered PWM signals also contribute.
- ✓Proportional spool stiction and sluggish response — Hydraulic fluid contamination (ISO cleanliness > 19/17/14) causes varnish buildup on the proportional spool bore. ROCKWIN valves are sensitive to fluid degradation. Common in plants with infrequent fluid changes or broken return-line filters.
- ✓Electronic valve controller amplifier card failure — Electrolytic capacitors on ROCKWIN WPC controller cards fail prematurely in hot climates above 50°C, leading to ripple voltage and distorted proportional solenoid current. Moisture ingress through non-sealed connectors also causes PCB corrosion.
- ✓Loss of pilot pressure or proportional feedback signal — Contamination in proportional feedback line or pilot check valve blockage. ROCKWIN integrated modules have restrictive pilot galleries prone to clogging if main system fluid is poorly filtered. Broken feedback transducer wiring at connector also common.
- ✓Valve spool centering loss and drift — Internal spring fatigue or spring relaxation in ROCKWIN NG10 proportional valves after 5-7 years of continuous duty. Spring preload loss causes the spool to sit off-center, resulting in drift and loss of neutral position control.
- ✓Intermittent proportional valve response and hunting behavior — Hysteresis in solenoid response combined with proportional feedback lag. ROCKWIN proportional controllers may oscillate if gain tuning is incorrect or if the proportional amplifier card has aging MOSFET transistors with rising on-resistance.
How We Repair Your ROCKWIN 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 ROCKWIN Equipment
We serve plant maintenance teams across all major industries where ROCKWIN automation is deployed.
Frequently Asked Questions — ROCKWIN Repairs
Do you repair ROCKWIN equipment anywhere in India?+
Yes. Synchronics repairs the full ROCKWIN product range including proportional directional valves, pressure relief valves, electronic controller cards, and integrated hydraulic modules. We offer PAN India door pickup from Mumbai, Delhi, Pune, Bangalore, Chennai, Hyderabad, Ahmedabad, Surat, Nashik, and all other industrial cities. All repairs are completed in our 45,000 sq ft facility in Vadodara, Gujarat with same-day diagnostics and 7-10 day turnaround for most ROCKWIN proportional valve repairs.
What is the typical repair cost for a ROCKWIN proportional directional valve?+
ROCKWIN proportional valve repair costs INR 8,000 to INR 22,000 depending on the model (NG6 or NG10), extent of contamination, and whether internal components require replacement. A solenoid coil replacement costs INR 4,500-7,000. Full valve overhaul including spool polishing, seal replacement, and spring replacement is INR 15,000-20,000. We provide a written quotation after inspection.
How long does ROCKWIN proportional valve repair take?+
Standard ROCKWIN proportional valve repair takes 7-10 working days from receipt in our Vadodara facility. This includes ultrasonic cleaning, component inspection, seal/spring replacement, internal polishing if needed, assembly, full-pressure testing, and proportional response calibration. Urgent repairs can be completed in 4-5 days with an expedite fee of 15% of repair cost. We provide door delivery within 2-3 days of dispatch.
Do you stock ROCKWIN spare parts or must I order them separately?+
Synchronics stocks common ROCKWIN spare parts including solenoid coils (WPM-06 and WPM-10), proportional spool seals, center springs, feedback transducers, and electronic amplifier cards. Lead time is usually 3-5 days. For obsolete or special-order ROCKWIN components, we source directly from ROCKWIN Taiwan or authorized distributors. We always advise you of part availability before commencing repair work.
Can you repair ROCKWIN pneumatic proportional flow control valves and test them in air?+
Yes. Synchronics has full capability to diagnose, repair, and bench-test ROCKWIN pneumatic proportional valves (WPN series) including internal poppet replacement, diaphragm sealing, electronic sensor calibration, and proportional response testing under controlled air pressure (0-8 bar). We simulate load conditions and provide test certificates. Pneumatic proportional valve repairs typically take 5-7 days.
How do I send my ROCKWIN 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 ROCKWIN 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 ROCKWIN 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 ROCKWIN 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.
ROCKWIN Repair Catalog
Showing 1–2 of 2 ROCKWIN products
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
No obligation
48hr Turnaround
Fastest in India
6-Month Warranty
Every repair
No Fix, No Charge
Zero risk policy
Pan-India Pickup
Doorstep service