KORI Repair Services India
KORI is a Japan-based manufacturer of hydraulic pumps, motors, and directional control valves widely used in industrial machinery across India. Known for compact design and high efficiency, KORI equipment powers textile mills, sugar factories, chemical plants, and heavy machinery manufacturers. Their proportional and pilot-operated systems are industry standard in agricultural equipment and construction machinery sectors across Gujarat, Maharashtra, and Tamil Nadu.
KORI is a Japan-based manufacturer of hydraulic pumps, motors, and directional control valves widely used in industrial machinery across India. Known for compact design and high efficiency, KORI equipment powers textile mills, sugar factories, chemical plants, and heavy machinery manufacturers. Their proportional and pilot-operated systems are industry standard in agricultural equipment and construction machinery sectors across Gujarat, Maharashtra, and Tamil Nadu.
Synchronics specializes in KORI hydraulic system repair and reconditioning across all major product families. Our 180+ engineers handle KORI pump failures, spool stiction in directional valves, pressure relief cartridge rebuilds, and motor seal replacement. With 30 years experience and 1000+ successful KORI repairs annually, we deliver same-facility turnaround in Vadodara and nationwide pickup service for dairy plants, sugar mills, and textiles requiring urgent hydraulic restoration.
Expert KORI hydraulic pump and valve repair — 1000+ annual repairs, India-wide service.
KORI Equipment We Repair — By Category
KORI Product Lines We Repair
Our engineers are trained on the full KORI product range. Below are the major product families we service.
KORI Piston Pumps (Swashplate)
Variable displacement piston pumps used in dairy processing, cement mixing, and plastic injection molding. Common failures include swashplate wear, compensator spool stiction, and charge relief valve leakage causing pressure loss and reduced flow.
KORI Directional Control Valves
4/3 and 4/2 spool valves for reversing flow in sugar cane crushers, textile looms, and construction equipment. Typical issues include internal leakage between P-T ports, spool seizure from contamination, and pilot solenoid coil burnout.
KORI Proportional Valve Systems
Pilot-operated proportional directional valves for precision flow control in dairy equipment and chemical processing. Prone to spool drift, amplifier card failure in electronics, and internal pilot blockage requiring complete overhaul.
KORI Fixed Displacement Motors
Radial and axial piston motors driving conveyor systems, crushers, and mixers in food and manufacturing plants. Failures stem from bent splines, worn cylinder blocks, swashplate tilt bearing collapse, and case drain port blockage.
KORI Pressure Relief Cartridges
Compact pilot-operated and direct-acting relief cartridges for NG10 and NG16 manifolds in sugar mills and chemical reactors. Common faults include pilot pressure imbalance, main spool wear causing chatter, and seal degradation leading to internal bypass.
KORI Hydraulic Motors — Bent Axis
High-speed bent-axis motors for textile spinning frames and plastic extruders across Indian manufacturing. Typical repairs involve swashplate rebuild, port plate resurfacing, and complete reassembly with modern seal sets.
Why Choose Synchronics for KORI 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 KORI 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 KORI Equipment Faults We Fix
Based on 30+ years of repair data, these are the most frequent failure modes we see in KORI equipment arriving at our workshop.
- ✓KORI piston pump internal leakage and reduced displacement — Swashplate guide bearing wear, compensator spool stiction from hydraulic oil oxidation, and charge relief valve spring fatigue are primary causes in KORI KVP series pumps operated beyond 5000 hours without oil change in Indian heat and dust environments.
- ✓KORI directional valve spool stiction and pilot solenoid failure — Contaminated hydraulic oil with ferrous particles from pump wear embeds in spool clearances. Pilot solenoid coil burns out from surge voltage in Indian mills with poor electrical earthing and no snubber circuits, preventing spool shift.
- ✓KORI motor case drain line blockage and pressure buildup — Bypass oil from worn cylinder block and port plate carries wear debris and metallic particles that accumulate in case drain restrictions. In sugar mills with high ambient temperature (45-50°C), oil viscosity drops causing seal leakage into case drain, leading to cavitation and hose collapse.
- ✓KORI proportional valve amplifier card intermittent faults and proportional spool drift — Humidity ingress in NG10 proportional manifold solenoid enclosure corrodes amplifier PCB tracks and causes intermittent signal loss. Proportional spool creeps due to worn centering spring and pilot pressure imbalance in 24 VDC proportional coil with low-grade Indian PLC feedback signals.
- ✓KORI relief cartridge chattering and erratic pressure regulation — Pilot pressure signal oscillation in proportional directional valve feedback circuit causes main spool to vibrate. Spring preload loss and spool wear in KRC series cartridges operated 6+ years without overhaul result in unstable cracking pressure, common in dairy equipment with pulsating loads from pump stroke.
- ✓KORI bent-axis motor swashplate tilt bearing collapse and vibration — Radial clearance wear in swashplate guide bearing from 8000+ operating hours and poor filtration (contamination >ISO 18/16/13) causes swashplate tilt misalignment. High-speed operation in textile spinning frames (2000+ RPM) without adequate cooling accelerates bearing fatigue failure.
How We Repair Your KORI 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 KORI Equipment
We serve plant maintenance teams across all major industries where KORI automation is deployed.
Frequently Asked Questions — KORI Repairs
Do you repair KORI hydraulic equipment anywhere in India?+
Yes, absolutely. Synchronics is authorized to repair and reconditioning all KORI piston pumps, directional control valves, proportional valve systems, and motors across India. We offer pan-India door pickup service from Mumbai, Delhi, Pune, Bangalore, Chennai, Hyderabad, Ahmedabad, Jaipur, and all metros. Equipment is transported to our Vadodara, Gujarat facility for expert repair and pressure testing. Typical turnaround is 5-7 working days.
What KORI pump models do you most frequently repair in India?+
Synchronics repairs KORI KVP swashplate piston pumps most commonly — especially KVP-5, KVP-10, and KVP-30 units used in dairy processing, sugar mills, and plastic injection molding. We handle compensator rebuild, charge relief cartridge replacement, and full pump reconditioning with modern seal kits. Annual volume exceeds 300+ KORI pump repairs, making us one of India's largest KORI pump specialists with parts inventory and pressure test equipment.
How do you diagnose KORI directional valve spool stiction and solenoid coil faults?+
Synchronics uses ultrasonic cleaning, visual inspection under magnification, and continuity testing to identify KORI spool contamination and solenoid coil burnout. We test coil resistance (should be 20-30 ohms for 24 VDC KORI solenoids), measure pilot pressure response, and perform lap honing to restore spool-to-bore clearance. We then replace the pilot solenoid assembly with genuine KORI coil and surge-protection diode to prevent future electrical failures in Indian mills with voltage instability.
Can you rebuild KORI proportional valve systems with electronic amplifier cards?+
Yes. Synchronics rebuilds complete KORI proportional NG10 and NG16 manifold assemblies. We replace solenoid amplifier cards with genuine sealed KORI modules (IP67 rated), service proportional spools with centering springs, validate pilot relief settings, and perform closed-loop 0-10 VDC testing to simulate PLC feedback signals. Our technicians are factory-trained on KORI proportional spool calibration and can match original system response curves for dairy and chemical process control.
What is the typical cost and delivery timeline for KORI motor and pump repair?+
KORI piston pump overhaul (swashplate + compensator rebuild) costs INR 8,000-15,000 depending on model and runs 5-7 days. KORI motor repair (cylinder block + port plate + seal set) ranges INR 10,000-18,000 with same timeline. KORI directional valve service is INR 4,000-7,000 for spool lap and solenoid replacement. Synchronics offers free pickup within 100 km of Vadodara and provides detailed inspection reports with photos before repair approval. Parts and labor warranty is 12 months.
How do I send my KORI 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 KORI 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 KORI 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 KORI 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.
KORI Repair Catalog
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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