GRAF Repair Services India
GRAF is a leading German manufacturer of hydraulic systems, fluid management solutions, and industrial pumping equipment. Established in 1952, GRAF serves global industrial sectors with precision-engineered hydraulic components, accumulators, and fluid conditioning systems. Their products are widely deployed across Indian manufacturing, automotive, and heavy equipment sectors where reliability and fluid integrity are critical.
GRAF is a leading German manufacturer of hydraulic systems, fluid management solutions, and industrial pumping equipment. Established in 1952, GRAF serves global industrial sectors with precision-engineered hydraulic components, accumulators, and fluid conditioning systems. Their products are widely deployed across Indian manufacturing, automotive, and heavy equipment sectors where reliability and fluid integrity are critical.
Synchronics repairs the complete GRAF product range including hydraulic power units, pressure accumulators, filtration systems, and fluid conditioning equipment. With 30+ years of industrial electronics expertise and partnerships with 200+ equipment manufacturers, our 180+ engineers diagnose GRAF pump failures, accumulator faults, valve malfunctions, and fluid leakage issues. Indian plant managers trust Synchronics for rapid GRAF repairs with genuine component sourcing and full technical documentation support.
30+ years repairing GRAF hydraulic systems across Indian industrial plants.
GRAF Product Lines We Repair
Our engineers are trained on the full GRAF product range. Below are the major product families we service.
GRAF Hydraulic Power Units (HPU)
Complete HPU systems comprising pump assemblies, motor drives, reservoir tanks, and control manifolds. Common issues include pump cavitation, motor bearing wear, seal leakage, and pressure regulation faults that impact production uptime.
GRAF Pressure Accumulators
Bladder and piston accumulators for energy storage and pressure stabilization. Repair focuses on bladder degradation, gas charge loss, valve sealing failures, and structural corrosion that reduce accumulator performance and safety compliance.
GRAF Fluid Filtration & Conditioning
Industrial-grade filtration units, coolers, and fluid recirculation systems for oil cleanliness maintenance. Common failures include clogged filter elements, cooler tube scaling, bypass valve sticking, and contamination sensor malfunctions.
GRAF Directional Control Valves
Solenoid-operated and manual directional valves for hydraulic circuit control. Faults include solenoid coil burnout, spool sticking, pilot pressure loss, and internal leakage compromising actuator movement.
GRAF Proportional & Control Systems
Electronic proportional valves and control modules for precision flow and pressure management in automated systems. Repair addresses electronic card failures, sensor drift, valve coil faults, and communication protocol issues.
GRAF Fluid Monitoring Systems
Sensor arrays and real-time fluid condition monitoring equipment for predictive maintenance. Common issues include capacitive sensor fouling, signal noise in noisy industrial environments, and data acquisition module faults.
Why Choose Synchronics for GRAF 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 GRAF 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 GRAF Equipment Faults We Fix
Based on 30+ years of repair data, these are the most frequent failure modes we see in GRAF equipment arriving at our workshop.
- ✓GRAF HPU pump cavitation and noise — Inlet line restriction, low reservoir fluid level, or pump displacement wear increase air entry and pressure oscillation. Cavitation degrades pump components and reduces flow delivery on Indian production lines.
- ✓Accumulator bladder rupture and gas loss — Bladder material degradation (typically after 8-10 years), over-pressurization cycles, or manufacturing defects cause internal punctures. Loss of gas charge reduces accumulator energy storage and system pressure stability in Indian plants.
- ✓Solenoid valve coil burnout on directional control — Voltage transients from VFD drives, continuous solenoid energization without de-energization cycles, or moisture ingress into coil windings cause winding insulation breakdown. Common in Indian automotive and textile plants with high electromagnetic interference.
- ✓Directional valve spool sticking and sluggish response — Fluid contamination (particles, varnish deposits), corrosion on spool edges, or dried hydraulic fluid in idle systems cause internal friction. Spool stiction increases pilot pressure demand and delays directional shifts affecting machine cycle time.
- ✓Filter bypass valve activation and system pressure drop — Clogged filter media (often undetected in Indian dusty environments), damaged filter element, or differential pressure switch miscalibration triggers bypass valve opening. Loss of filtration increases contamination and accelerates hydraulic component wear.
- ✓Fluid cooler tube scaling and reduced heat rejection — Hard water deposits (high mineral content in Indian municipal water supplies), rust particles from steel reservoirs, or biological growth in cooling lines reduce thermal conductivity. System overheating shortens fluid life and causes component thermal stress.
How We Repair Your GRAF 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 GRAF Equipment
We serve plant maintenance teams across all major industries where GRAF automation is deployed.
Frequently Asked Questions — GRAF Repairs
Do you repair GRAF equipment anywhere in India?+
Yes. Synchronics repairs the complete GRAF hydraulic and control system range across all Indian industrial regions. We offer pan-India door pickup from Mumbai, Delhi, Pune, Bangalore, Chennai, Hyderabad, Ahmedabad, Kolkata, and 50+ other cities. All equipment is serviced at our main facility in Vadodara, Gujarat, where we maintain GRAF technical documentation and OEM component inventory for rapid turnaround.
What is the typical turnaround time for GRAF HPU and hydraulic system repairs?+
Standard GRAF repairs (pump overhaul, solenoid replacement, accumulator service) take 5-7 working days including diagnostic testing and pressure validation. Critical emergency repairs for production-line downtime can be expedited to 24-48 hours if components are in inventory. Synchronics maintains stock of common GRAF pump cartridges, solenoid coils, bladder assemblies, and filter cartridges to minimize delay.
How do you ensure GRAF repaired equipment meets original specifications?+
Synchronics uses GRAF technical manuals and pressure testing benches calibrated to ISO 4413 hydraulic safety standards. Every repaired GRAF pump, valve, and accumulator undergoes flow-pressure characterization, leak testing, and functional validation before shipment. We provide test certificates documenting baseline performance and guarantee component compatibility with your existing GRAF system architecture.
Can you source genuine GRAF spare parts and accumulators in India?+
Yes. Synchronics maintains relationships with GRAF authorized distributors and holds inventory of high-demand spare parts including pump cartridges, proportional valve solenoids, accumulator bladders, and filter media. For obsolete GRAF models, we identify equivalent modern components and engineer compatibility solutions. Lead times for non-stock GRAF parts are typically 2-3 weeks from Germany.
Do you offer preventive maintenance contracts for GRAF systems in Indian plants?+
Yes. Synchronics provides customized GRAF system maintenance packages including quarterly filter changes, accumulator nitrogen recharge, solenoid valve testing, and fluid condition monitoring. Our predictive maintenance program uses GRAF fluid sensors to track contamination, moisture, and viscosity trends, helping Indian manufacturers avoid unexpected hydraulic failures and extend component life by 30-40%.
How do I send my GRAF 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 GRAF 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 GRAF 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 GRAF 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.
GRAF Repair Catalog
No products found for GRAF
Don't See Your GRAF Model Listed?
We repair the full range of GRAF 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