SOSHIN Repair Services India
SOSHIN Electric Co., Ltd. is a leading Japanese manufacturer of solenoids, electromagnetic switches, relays, and coil assemblies serving industrial automation across Asia. Known for compact design, reliable solenoid valve actuators, and precision electromagnetic components, SOSHIN equipment is embedded in thousands of Indian manufacturing plants — textile mills, food processing units, pharmaceutical equipment, and packaging machinery. Their products operate in demanding environments requiring consistent performance under thermal and mechanical stress.
SOSHIN Electric Co., Ltd. is a leading Japanese manufacturer of solenoids, electromagnetic switches, relays, and coil assemblies serving industrial automation across Asia. Known for compact design, reliable solenoid valve actuators, and precision electromagnetic components, SOSHIN equipment is embedded in thousands of Indian manufacturing plants — textile mills, food processing units, pharmaceutical equipment, and packaging machinery. Their products operate in demanding environments requiring consistent performance under thermal and mechanical stress.
Synchronics Electronics specializes in SOSHIN solenoid repair, coil rewinding, electromagnetic switch restoration, and valve actuator diagnostics across India. Our 180+ engineers have logged over three decades repairing SOSHIN pulse solenoids, proportional solenoid assemblies, and industrial relay components. We stock genuine SOSHIN replacement coils and springs, perform field-level solenoid testing, and deliver fast turnaround repairs for mission-critical textile looms, injection molding machines, and packaging lines. When SOSHIN equipment fails, Synchronics restores it.
Expert SOSHIN solenoid and electromagnetic component repair across Indian industrial sectors.
SOSHIN Equipment We Repair — By Category
SOSHIN Product Lines We Repair
Our engineers are trained on the full SOSHIN product range. Below are the major product families we service.
Pulse Solenoids (PS Series)
SOSHIN pulse solenoids are widely used in textile looms, packaging machines, and pneumatic valve control. Common repair issues include coil burn-out due to continuous energization, spring fatigue, armature stiction, and plunger wear. These solenoids operate at 24VDC and 220VAC, and failure often results in machine downtime.
Proportional Solenoids (PPS Series)
SOSHIN proportional solenoids deliver variable force control for precision hydraulic and pneumatic applications in food processing and pharmaceutical machinery. Repairs focus on coil insulation failure, spool valve stiction, and pressure sensor malfunction. These devices require high-precision rewinding and bench testing.
Electromagnetic Switches & Relays (ES/ER Series)
SOSHIN electromagnetic switches and relays control motor circuits, pneumatic lines, and safety interlocks in Indian manufacturing plants. Common faults include contact oxidation, coil open-circuit, armature seizure, and mechanical latch failure. Industrial environments (high dust, moisture, vibration) accelerate wear.
Valve Actuators & Coil Assemblies (VA Series)
SOSHIN valve actuator coils are used in injection molding machines, extruders, and hydraulic press controls. Repair involves coil testing, insulation resistance measurement, winding resistance analysis, and mechanical coupling inspection. Failure often caused by thermal cycling, moisture ingress, and voltage surge damage.
Pilot Operated Solenoids (POSL Series)
SOSHIN pilot-operated solenoids provide high flow control with low solenoid power consumption in large industrial valve systems. Repairs address pilot stage blockage, main stage coil failure, and spool seal degradation. Common in textile dyeing machines and chemical processing plants.
Industrial Coil Rewinding & Restoration
Complete SOSHIN coil rewinding service for burnt, open-circuit, or short-circuited solenoid coils. Synchronics performs insulation testing, resistance measurement, thermal cycle testing, and pressure drop validation. Turnaround: 48-72 hours for standard coils, same facility in Vadodara.
Why Choose Synchronics for SOSHIN 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 SOSHIN 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 — Vadodara, Mumbai, Pune, Ahmedabad, Surat, Chennai, and more.
Common SOSHIN Equipment Faults We Fix
Based on 30+ years of repair data, these are the most frequent failure modes we see in SOSHIN equipment arriving at our workshop.
- ✓Coil open-circuit or high winding resistance — Thermal cycling and moisture ingress in humid Indian manufacturing environments cause insulation breakdown and copper wire oxidation in SOSHIN solenoid coils. Continuous energization (24/7 operation in textile mills) accelerates insulation degradation.
- ✓Solenoid armature stiction or sluggish response — Dust ingress, moisture, and rust formation on SOSHIN solenoid plungers prevent smooth armature travel. Common in textile mills where lint and suspended particles coat magnetic surfaces. Spring corrosion also reduces return force.
- ✓Electromagnetic switch contact oxidation or welding — SOSHIN switch contacts oxidize and form insulating layers in high-humidity or corrosive plant environments. Sustained inrush current (especially in motor control circuits) causes contact welding, preventing switch opening.
- ✓Pulse solenoid coil burn-out with black residue — Incorrect continuous energization (pulse solenoids designed for intermittent duty) or voltage surge from motor switching, capacitor discharge, or lightning strike damages SOSHIN coil insulation. Common fault code: coil short to ground.
- ✓Proportional solenoid spool valve stiction or no modulation — Contaminated hydraulic or pneumatic fluid clogs SOSHIN proportional solenoid spool surfaces. Coil current imbalance (due to coil resistance drift or driver circuit fault) prevents smooth spool movement, reducing control resolution.
- ✓Valve actuator coil short-circuit or phase-to-ground fault — Thermal cycling in injection molding machines and pressure cycling in hydraulic presses stress SOSHIN coil insulation. Moisture from condensation in non-climate-controlled Indian plants penetrates coil layers, creating conductive paths.
How We Repair Your SOSHIN 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 SOSHIN Equipment
We serve plant maintenance teams across all major industries where SOSHIN automation is deployed.
Frequently Asked Questions — SOSHIN Repairs
Do you repair SOSHIN equipment anywhere in India?+
Yes. Synchronics repairs the full SOSHIN solenoid, relay, and valve actuator range across India. We offer PAN India door pickup from Mumbai, Delhi, Pune, Chennai, Hyderabad, Bangalore, Ahmedabad, Kolkata, and all tier-2 industrial cities. All repairs are processed at our main facility in Vadodara, Gujarat. Standard turnaround is 5-7 working days; emergency express repair available for critical textile loom and packaging line solenoids.
Can you rewind burnt SOSHIN solenoid coils, or must we buy new coils?+
Synchronics rewinds burnt and open-circuit SOSHIN solenoid coils at a fraction of replacement cost. We measure the original coil specifications, rewind with polyamide-imide wire of matching gauge and turn count, perform insulation testing, and validate resistance within ±5% of original. Rewound coils pass thermal cycle and pressure drop testing. For high-volume repeating faults, we offer stock rewound coils of popular SOSHIN models (PS-2405, PS-2410, ES-12-20). Typical cost: 30-40% less than new coil purchase.
What is the typical turnaround time for SOSHIN solenoid repair?+
Standard SOSHIN solenoid repair turnaround is 5-7 working days from receipt to dispatch. This includes full diagnostic testing, coil rewinding (if needed), component replacement, multi-point functional testing, and quality certification. Emergency express repair (24-48 hour) available for critical production-line solenoids at 30% upcharge. All SOSHIN repairs include 12-month warranty. Contact us with your fault description and equipment serial number for accurate turnaround estimate.
Do you stock genuine SOSHIN replacement parts (coils, springs, contacts)?+
Yes. Synchronics stocks genuine SOSHIN replacement coils, return springs, armature cores, contact assemblies, and spool seals for popular pulse solenoids (PS series), proportional solenoids (PPS series), and electromagnetic switches (ES/ER series). We also stock common connector types and surge protection components. Stocked parts typically ship within 24 hours; special-order SOSHIN parts arrive within 2-3 weeks from Japan. All parts come with SOSHIN certificate of authenticity and carry full warranty.
How can I prevent SOSHIN solenoid failures in my textile mill or packaging line?+
Synchronics recommends: (1) Install voltage stabilizers to protect solenoids from mains fluctuations (Indian industrial supply often varies ±10%); (2) Use surge protection (varistors or RC snubbers) on solenoid circuits to block voltage spikes from motor switching; (3) Ensure proper IP rating for your environment (IP54 minimum for dusty textile mills); (4) Perform preventive coil insulation resistance testing annually (megger test); (5) Schedule pulse solenoid replacement every 2-3 years in high-duty applications; (6) Keep solenoid connectors dry and protected from moisture. Synchronics offers on-site predictive maintenance assessment for large installations.
How do I send my SOSHIN 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.
What is the cost of repairing a SOSHIN 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 SOSHIN 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 SOSHIN 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.
SOSHIN Repair Catalog
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