Electrical
Insulation
Components
Manufacturer
Transformer pressboard, FRP sheets, glass fiber tubes, crepe paper & custom CNC-machined composite components — IEC & IS compliant, engineered for 30+ years.
High-Performance Electrical
Insulation & Transformer Components
ACC Insulations (Arunoday Composit Corporation), established in 1994 at MIDC Ambad, Nashik — a trusted electrical insulation manufacturer supplying OEM transformer, switchgear, motor, and generator manufacturers across India for 30+ years.
Every product meets IEC and IS standards — full in-house dimensional inspection, dielectric strength testing, and batch certification before dispatch.
-
State-of-the-art manufacturing facility
-
Advanced CNC machining, hydraulic presses & precision fabrication
-
IEC 60641, IEC 60554, IEC 60893 & IS standard compliance
-
Custom components from OEM drawings — any profile, any tolerance
What Components Do We Manufacture
CNC-machined composite components — every product engineered for long-term performance in demanding electrical environments.
Transformer Pressboard & Pre-Compressed Boards
High-density cellulose pressboard for cylinders, spacers, angle rings and barriers. IEC 60641 compliant. Low residual moisture.
Electrical Grade Crepe Paper & Tubes
10–30% stretchability for transformer lead wrapping, conductor insulation and coil assemblies. Oil impregnatable. IEC 60554.
Electrical Grade Press Paper & Kraft Paper
Flat cellulose insulation paper for turn-to-turn and layer-to-layer winding insulation in power and distribution transformers.
Glass Fiber Tubes & Epoxy Wound Tubes
Electrical grade glass fibre reinforced epoxy tubes for HV insulation, bushing cores, and structural spacers. High dielectric strength.
Fibre Glass Epoxy Sheets (G10, G11, FR4)
Precision CNC-machined glass epoxy laminate components — stator wedges, busbar supports, phase barriers. ±0.05 mm tolerance.
Electrical Densified Laminated Wood (DLW)
High-strength densified laminated wood for transformer clamping rings, structural supports and insulation frames. Oil-compatible.
Top Products
ACC Insulations — single-source supplier for transformer OEMs. Pressboard, crepe paper, epoxy laminates, glass fibre tubes and custom machined insulation parts, all IEC & IS compliant.
From Your Drawing to Your Door
Built for OEM precision and reliability.
Enquiry & Spec Review
Share your drawing or standard spec. Engineers review material grade, dimensions, and tolerances.
Material Selection
Select correct IEC/IS grade raw material — pressboard, epoxy laminate, cellulose paper, or composite.
CNC Machining & Fabrication
Components machined on CNC centres and hydraulic presses to exact dimensional requirement.
Quality & Dispatch
Full dimensional, dielectric, and visual inspection before dispatch. Batch certificates on request.
Smart Insulation Selection & Calculators
Validated engineering tools help electrical engineers and transformer designers choose correct insulation grade, calculate safe dielectric clearances, verify thermal class compliance, and convert units — all in one place.
-
Material FinderMatch to IEC/IS grade by application parameters
-
Thickness CalculatorRequired insulation thickness from voltage & dielectric strength
-
Weight EstimatorLogistics & structural mass calculation
-
Thermal AuditClass A–H thermal compliance check
-
Unit ConverterInstant kV/mm to V/mil and more
input: 20 kV/mm grade: Electrical Pressboard
logic: val × 25.4
result: 508.00 V/mil ✓
// Minimum Insulation Thickness
T = (V_system / E_dielectric) × SF
T = (33,000V / 22,500 V/mm) × 1.5
result: 2.20 mm Required ✓
// Thermal Class Compliance
class: Class H (180°C)
material: G11 Epoxy Glass Laminate
status: COMPLIANT ✓
Why Leading Transformer
Manufacturers Choose ACC
Three decades of precision insulation manufacturing, deep material expertise, and transformer-focused engineering — all from a single, reliable source in India.
Established Since 1994
30+ years manufacturing electrical insulation materials for transformer, switchgear, motor, and generator OEMs across India.
CNC Precision Fabrication
Advanced CNC machining centres and hydraulic presses enable custom insulation components to exact drawing and tolerance.
IEC & IS Standard Compliance
Every product manufactured to IEC 60641, IEC 60554, IEC 60893 and IS standards with dielectric and dimensional batch certification.
Single-Source Supplier
Pressboard, crepe paper, epoxy laminates, glass tubes, FRP profiles and machined components — all from one supplier, one quality system.
Reliable On-Time Delivery
Consistent lead times and production scheduling ensure your transformer assembly line never waits for insulation materials.
Technical Engineering Support
Engineering team guides material selection, dielectric calculations, and dimensional specification for your specific voltage class.
Our Promise to You
Expert Advice
Engineers provide guidance on material selection, dielectric calculations, and insulation system design for every voltage class.
Advanced Technology
Modern CNC machining, hydraulic presses, and precision milling — operated by experienced engineers for consistent results.
On-Time Delivery
Committed to consistent dispatch schedules — critical materials arrive when your assembly line needs them.
Quality Assurance
Dielectric strength testing, dimensional inspection, and moisture verification on every production batch — not just spot checks.
Across 8 Major Sectors
ACC Insulations supplies electrical insulation materials to manufacturers and utilities across eight major industrial sectors in India.
Frequently Asked Questions
Common questions from transformer and switchgear manufacturers about products and capabilities.
⚡ Ready to Get Started?
Looking for Custom Machined
Insulation Components?
Send technical specifications or OEM drawing — engineering team delivers a precise, IEC-compliant insulation solution — pressboard, epoxy, glass fibre, or composite.
Looking for Wires & Cables?
Explore the premier industrial range from Saasvat Urja, featuring SriniLink and Finolex cables — bridging world-class manufacturing and on-site execution for India's industrial sectors.
Technical Specifications & Area Charts
Brochure ↓Explore the Saasvat Urja Product Platform
Visit Site →