Spiral EHL Engineering

What Spiral EHL Engineering does

Spiral EHL Engineering Pvt. Ltd. is a precision component manufacturer based in Hoskote, Bangalore, India, operating as an MSME-registered Export Oriented Unit (EOU) since 2006. The company specializes in high-precision CNC machining (3, 4, and 5-axis) of aerospace-grade materials including Alloy Steel 4340 (50HRC) and Aluminum Alloys (2, 6, 7 series), producing flight-critical components such as Direction Control Fins for surface-to-air missiles, Gimbal Payload structures, Litening Pod components, Aircraft Pylons (up to 1.7m length, 35kg), and Radar Components. It holds AS 9100D aerospace quality certification (valid 2022-2025) and operates through NADCAP-approved suppliers for heat treatment, surface treatment, coating, anodizing, phosphating, zinc-nickel plating, and painting.

The company's manufacturing platform integrates CNC machining, mechanical assembly, and quality inspection within a single 2,260 sq.mt built-up facility on a 6,600 sq.mt plot. Equipment includes HAAS UMC-750 (5-axis), HAAS VF-series vertical machining centers, and a Mazak Integrex 30 turn-mill center. Quality control is anchored by an in-house NIKON-LK INTEGRA Coordinate Measuring Machine with 5-micron precision, supplemented by Mitutoyo profile projectors. The firm claims proprietary methodologies including "Green Button Machining" and "Zero Defects with RFT (Ready For Test)," achieving GD&T tolerances of 0.01mm, position accuracy of 40 microns, and a reported 30% reduction in assembly time for Direction Control Fins.

The business model is enterprise contract manufacturing with direct B2B sales to aerospace and defense prime contractors in both export-oriented and domestic tariff area segments. Revenue is generated through quote-based project contracts for precision machined components and sub-assemblies, with delivery volumes disclosed in the hundreds to low thousands per program (e.g., 1,970 Direction Control Fins, 50 Litening Pod units, 40 Aircraft Pylons, 20 Radar Components). The company employs 51-100 staff, and management commentary indicates over ten years of cumulative experience serving international industrial systems. Pricing is not publicly disclosed, consistent with project-based defense manufacturing.

Name

Spiral EHL Engineering

Legal name

Spiral EHL Engineering Pvt. Ltd.

Website

https://spiralehl.in

Company type

Private

Founded year

2006

Operating status

Operating

Headcount range

51–100 employees

Short description

Spiral EHL Engineering is an AS 9100D-certified Indian precision CNC machining company that manufactures flight-critical aerospace and defense components — including missile fins, gimbal payloads, Litening Pod parts, aircraft pylons, and radar structures — for defense prime contractors from a single Bangalore facility.

Ownership category

akta.pro rank

Product category

Aerospace Precision Manufacturing

NAICS

Aerospace Product and Parts Manufacturing (33641), Other Guided Missile and Space Vehicle Parts and Auxiliary Equipment Manufacturing (336419), Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing (334511)

SIC

Guided Missiles & Space Vehicles & Parts (3760), Aircraft Parts & Auxiliary Equipment, Nec (3728), Search, Detection, Navagation, Guidance, Aeronautical Sys (3812), Aircraft & Parts (3720)

akta.pro primary industry

Metal Airframe Structures & Machined Parts (IMABAEAC)

akta.pro secondary industries

Military Avionics, Mission Computers & Flight Controls (IMABAMAE), Special-Mission Fixed-Wing Aircraft Manufacturing (ISR, AEW&C, Patrol) (IMABAAAH)

Keywords

• Precision CNC machining
• Aerospace components manufacturing
• Defense sub-assemblies
• 5-axis CNC machining
• Aerospace quality inspection

Headquarters

HQ city

Hoskote

HQ country

India

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Supply Chain, Operations, Technology or R&D, Infrastructure

Revenue model

1. Precision CNC Machining Services: Revenue generated from high-precision CNC machining of aerospace-grade components including Direction control Fins, Gimbal Payloads, Litening Pod components, Aircraft Pylons, and Radar Components. Manufacturing includes heat treatment, surface treatment, and assembly services for mission-critical applications.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

Spiral EHL Engineering manufactures high-precision CNC machined aerospace and defense components and sub-assemblies, including Direction Control Fins for Surface-to-Air Missiles, Gimbal Payload components, Litening Pod parts, Aircraft Pylons, and Radar Components. Operations span 3, 4, and 5-axis CNC machining, in-house CMM-based quality inspection, mechanical assembly, and NADCAP-approved heat and surface treatment, delivered as integrated build-to-print manufacturing services for mission-critical defense programs.

Product overview

Spiral EHL Engineering is an AS 9100D-certified precision engineering company offering integrated manufacturing services for mission-critical aerospace industries. The core offering is a unified service portfolio combining CNC precision machining (3, 4, and 5-axis capabilities), mechanical assembly, and quality inspection services. The manufacturing infrastructure includes VMC-HAAS machines (VF-2SS, VF-3SS, VF-4SS, VF-5, VF-9), UMC-HAAS 750 5-axis machines, and Mazak Integrex 30 turn-mill centers. End products include aerospace components such as Direction Control Fins for surface-to-air missiles, Gimbal Payload components, Litenning Pod components, Aircraft Pylons, and Radar Components. The company also provides heat treatment, surface treatment, and painting services through NADCAP-approved suppliers. Quality inspection is supported by in-house CMM capability up to 5 microns precision.

Differentiator

Problem solved

Functional benefit

Products and services

• CNC Precision Machining Services High-precision 3, 4, and 5-axis CNC machining services for aerospace-grade components using VMC-HAAS and UMC-HAAS machines and Mazak Integrex 30 turn-mill centers, serving aerospace and defense customers requiring tight GD&T tolerances.
• Quality Inspection Services Precision inspection services using NIKON-LK INTEGRA CMM with 5-micron capability, Mitutoyo profile projectors, and height masters to verify GD&T compliance on aerospace and defense components.
• Mechanical Assembly Services Mechanical assembly of precision aerospace and defense parts, including key inserts, Heli coil installations, bush press fit operations, and final integration using customer-provided jigs and dedicated fixtures.
• Heat and Surface Treatment Services Heat treatment and surface treatment services including coating, anodizing, phosphating, zinc nickel plating, and painting delivered through NADCAP-approved suppliers for aerospace and defense components.
• Direction Control Fins Very high precision Direction Control Fins used in Surface-to-Air Missiles, manufactured from Alloy Steel 4340 at 50HRC hardness with aerodynamic profiles and 0.1 surface profile tolerance, including zinc nickel plating and full spring/torque assembly.
• Gimbal Payload Components Aerospace-grade Gimbal Payload components machined from Aluminum Alloy 7075 T651 for optimized strength-to-weight ratio in aerospace gimbal applications.
• Litening Pod Components Precision aerospace components for Litening Pod targeting applications, machined from Aluminum Alloys 2, 6, and 7 series with GD&T tolerance of 0.01mm and position accuracy of 40 microns.
• Aircraft Pylon Components Aircraft Pylon components with finish lengths of 1.7 and 1.4 meters weighing 35kg each, produced through 4 and 5-axis machining and delivered as fully integrated final assemblies.
• Radar Components Precision radar components machined from Aluminum Alloys 6 and 7 series and stainless steel using 4th and 5th axis machining, achieving GD&T tolerances of 0.01mm.

Quantifiable outcome

• Reduced assembly time by 30% for Direction control Fins through Green Button Machining and dedicated fixtures
• +4 more outcomes

Named customers1 record

Segments2 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Scale indicators6 records

Recent moves5 records

Expansion highlights4 records

Direct peers

• Dynamatic Technologies: Indian aerospace and hydraulics manufacturer producing precision machined aerospace components, aerostructures, and defense assemblies. Directly comparable in aerospace component manufacturing, AS 9100D environment, and defense prime customer base.
• Sansera Engineering: Indian listed precision engineering firm serving aerospace and automotive customers with machined components and sub-assemblies. Overlaps with Spiral EHL in precision machining for aerospace primes and similar AS 9100D-driven customer base.
• Hical Technologies: Indian precision aerospace and defense components manufacturer producing machined parts, electromechanical assemblies, and avionics-related products. Direct comparable in AS 9100D-certified precision aerospace machining serving defense primes.
• MTAR Technologies: Indian listed precision engineering company manufacturing mission-critical components and assemblies for aerospace, defense, nuclear, and clean energy. Direct overlap with Spiral EHL in precision machined aerospace and missile components, with larger scale and public market access.
• Aequs Aerospace: Indian Tier 1 aerospace component manufacturer with machining, assembly, and surface treatment capabilities serving global aerospace primes. Comparable in product mix (precision machined parts, assemblies) and end markets (commercial and defense aerospace).
• BFW (Bharat Fritz Werner): Indian CNC machine tool manufacturer that also produces precision machined aerospace and defense components. Overlaps with Spiral EHL in both 5-axis CNC machining capabilities and aerospace/defense component manufacturing for Indian primes.

Broad incumbents

• Magellan Aerospace: Global Tier 1 aerospace manufacturer with facilities worldwide producing machined aero structures, engine components, and assemblies. Comparable end products (precision machined aerospace parts) but operates at global prime-tier scale with much broader program participation.
• Tata Advanced Systems: Indian aerospace and defense prime contractor part of the Tata Group, producing aerostructures, aero-engine components, and integrated defense systems. Overlaps as both a potential customer for Spiral's machined components and a competing supplier on integrated assemblies.
• Bharat Forge: Large Indian diversified forging and precision manufacturing group with a growing aerospace and defense vertical. Comparable in aerospace machined components but operates at significantly larger scale and broader product portfolio including large structural parts.

Emerging players

• Sreevatsa Engineering: Smaller Indian precision engineering firm focused on CNC machined aerospace and industrial components. Comparable in product category and customer profile but at a smaller scale, providing a similar Tier 2/3 supplier position in the Indian aerospace supply chain.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Spiral EHL Engineering