CRGO Slit Coils and Mother Coils
Precision-slit cold-rolled grain-oriented electrical steel coils with burr below 8, 10 µm, slit widths from 40 mm to 1,250 mm, automated coil wrapping, and optional ID protector.
CRGO Processing, Core Assemblies, and Amorphous Cores for Transformer OEMs
Mangal Electrical supplies transformer core components to OEMs and distributors in 15+ countries, backed by 40,000 MT annual capacity and a NABL-accredited test laboratory.
35+
Years in operation
40,000 MT
Annual production capacity
5 (Rajasthan, India)
Manufacturing units
15+ countries
Export markets
ISO 9001:2015, ISO 14001:2015, ISO 45001:2018, NABL Accredited Lab, ZED Silver, PGCIL 765 kV Class Approval
Certifications
40,000 MT per annum across 5 unitsUnited StatesNetherlandsItalyEgyptEthiopiaKuwait+10
ISO 9001:2015 Quality ManagementISO 14001:2015 Environmental ManagementISO 45001:2018 Occupational Health & SafetyNABL Accreditation – Testing LaboratoryZED SilverPGCIL 765 kV Class Approval
Supplier-declared, pending confirmation
Products and Core Assemblies
CRGO Cut Laminations
Pre-tagged cut laminations for power and distribution transformer cores, available with vertical and horizontal step-lap, mitred cuts, traceable labelling, slot punching, and tip cut.
Transformer Core Assemblies
Assembled transformer cores with design optimisation, MS/wooden frame parts, and vacuum packaging; built for power and distribution transformer applications.
Core Coil Assemblies
Active parts for power and distribution transformers up to 20 MVA, with foil winding capability up to 20 MVA and a complete in-house test facility.
Amorphous Cores
Amorphous alloy cores made from 0.03 mm thin ribbon laminations, delivering up to 80% lower no-load losses compared to conventional CRGO cores.
Oil-Immersed Circuit Breakers
Custom-engineered oil-immersed circuit breakers for power distribution systems, designed for durability and minimal maintenance requirements.
Why Buyers Specify Mangal Electrical
35+ Years of Experience
Proven expertise in CRGO processing and transformer core manufacturing.
End-to-End Core Solutions
Slit coils, laminations, assembled cores, wound cores and amorphous cores under one roof.
40,000 MT Annual Capacity
Five manufacturing units built to support consistent volumes and repeat orders.
Dust-Controlled CRGO Processing
ISO Class 9 Dust Controlled manufacturing environment for reliable processing quality.
NABL-Accredited German Brockhaus testing laboratory
German Brockhaus testing laboratory with NABL accreditation for traceable test data.
Global Export Experience
Serving transformer OEMs across 15+ countries with established export capabilities.
Material & Production Traceability
Complete traceability from mill-origin material to finished core.
Multi-Mill Sourcing
Access to multiple CRGO mills for consistent quality, reliable supply, and competitive pricing.
Get in touch
Email address
Phone
+91 9694093959
Address
C-61, C-61 (A&B), Road No. 1-C, V.K.I. Area, Jaipur 302 013, Rajasthan, India