Manufacturing facilities

Fire Stone Metal Pvt. Ltd. leverages a sophisticated synergy of cutting-edge technology and precision engineering to deliver excellence across the aluminum extrusion lifecycle. Our facility is a hub of innovation, integrating advanced metallurgy, specialized surface treatments, and continuous process refinements to meet the most rigorous global industrial standards.

Our Infrastructure

Precision Manufacturing

We operate five high-speed, automated manufacturing presses engineered for the strategic production of premium-grade aluminum profiles with exceptional accuracy.

Technological Sophistication

Our production lines are outfitted with the latest industrial machinery, maximizing throughput while maintaining superior finish quality across all product tiers.

Operational Reliability

Our high-efficiency plants are equipped with the latest industrial machinery and supported by 100% power redundancy, guaranteeing stable production cycles and superior quality control.

Aluminium Casting Facility

Fire Stone Metal Pvt. Ltd. operates a state-of-the-art Cast House focused on producing high-quality aluminium billets in line with global extrusion standards.

The facility features two oil-fired, fixed-hearth reverberatory melting-cum-holding furnaces of 8 MT capacity each, equipped with regenerative burners for enhanced thermal efficiency and precise temperature control.

Our Hot Top Casting Unit enables the production of 4”, 5” and 7” diameter billets in alloy grades ranging from 1xxx to 7xxx series, serving diverse industrial applications.

Molten metal quality is ensured through granular flux treatment and eco-friendly nitrogen degassing, with continuous hydrogen monitoring using a gas detection system. Chemical composition is verified using a Direct Reading Vacuum Emission Spectrometer.

On-line modification and grain refinement using Al–Sr and AlTiB / AlTiC rods ensure a fine, uniform grain structure and consistent mechanical properties.

Extrusion Manufacturing Facility

Fire Stone Metal Pvt. Ltd. operates 5 aluminium extrusion presses with a combined annual capacity of 12,000 MT, enabling the production of profiles ranging from miniature sections to large-size bars in soft, medium, and high-strength alloys. Delivering uniform mechanical properties throughout the length of profiles, sections, and bars.

The company is equipped with solutionizing and age-hardening facilities with drop quench, meeting stringent strength requirements for the engineering, automotive, Solar, defence and Industrial Sectors.

Fire Stone Metal operates a fully integrated Machine Shop, equipped with advanced CNC and VMC machining centres, precision drilling systems, EDM and wire-cut machines, Special Purpose Machines (SPMs), automated and angle cutting equipment, punching units, a Shot Blasting Machine, and a CNC Aluminium Profile Fabrication Machine.

By leveraging advanced drilling and punching technologies, the facility ensures precise hole creation and enlargement in aluminium extrusions with superior repeatability and dimensional accuracy — delivering high-quality, precision-engineered components tailored to exact customer requirements.

Why Our Machine Shop Stands Apart

  • Fully In-House Operations — No outsourcing, no delays
  • Advanced CNC Automation — Consistent precision at scale.
  • Multi-Process Capability — Machining, cutting, blasting & fabrication under one roof
  • ISO 9001:2015 & IATF 16949:2016 Certified — Quality built into every process

Tool Room

Firestonemetal Pvt. Ltd. operates a fully integrated, state-of-the-art in-house tool room for the design and manufacture of high-precision aluminium extrusion dies across soft, medium, and high-strength alloys. Dies are engineered using Mastercam CAD/CAM to optimize metal flow, dimensional accuracy, and profile fitment, and are precision-machined on CNC Vertical Machining Centres. Advanced heat treatment, wire-cut EDM, and nitriding facilities ensure superior die life, consistent geometry, excellent surface finish, and high repeatability—meeting the stringent quality requirements of ISO-IATF certified automotive, solar, and industrial applications. With complete tool-making infrastructure under one roof, new die development is achieved within 2–3 weeks following finalization of profile specifications.

Quality Certification & Standards

All die manufacturing operations comply with:

ISO 9001:2015 – Quality Management Systems
IATF 16949 – Automotive Quality Standards
Industry - specific requirements for automotive, solar, and industrial applications
Your Benefits with Our Extrusion Dies

We develop our aluminium extrusion dies in close collaboration with our customers to ensure optimal performance and reliability. This approach delivers the following benefits:

We craft precision dies from premium raw materials for unmatched accuracy, performance, and reliability.
Extended die life, resulting in lower tooling costs.
Reduced trial runs, minimizing downtime and overall production costs.
High repeatability for tight tolerance applications.

Shot Blasting

Shot blasting is carried out after the extrusion process to enhance the surface quality of the aluminium profiles. In this process, the extruded sections are blasted with fine stainless steel shots, which smoothen sharp edges and impart a uniform, clean matte finish.

This controlled surface treatment prepares the profiles for anodizing by eliminating contaminants and improving coating adhesion, ensuring better corrosion resistance and durability.

Process Flow
Aluminium Billet
↓
Extruded through Die
↓
Profile Surface has:
  • Longitudinal die lines
  • Surface roughness
  • Micro-cracks
  • Lubricant traces
↓
Shot Blasting
↓
ALL ABOVE REMOVED ✅
Clean Uniform Surface Ready
Pre-treatment Before Anodizing
Parameter Without With Shot Blasting
Surface Marks Die lines remain visible after anodizing
Rejected 		Die lines fully obliterated — clean uniform surface
Accepted
Anodic Layer Uneven — irregular current distribution in tank Uniform oxide thickness throughout profile
Visual Finish Blotchy, streaky, glossy defects — non-uniform Consistent satin/matte — preferred by architects
Sealant Hold Smooth surface — sealing chemicals not held uniformly Micro-porous surface — sealing compounds penetrate effectively
Contamination Oil, grease, die compounds remain — pitting during anodizing All impurities physically removed before tank entry

Advanced anodizing Facility

Fire Stone Metal Pvt. Ltd. operates a state-of-the-art anodizing facility comprising 24 processing tanks, capable of delivering anodized coatings up to 25 microns. The plant is integrated with an advanced electrostatic colouring system, ensuring a broad spectrum of colour shades with consistent quality and superior surface finish.

The total annual anodizing capacity is 2400 metric tonnes, with the capability to process extrusions up to 6 metres in length. In addition to colour anodizing, the facility offers enhanced colour depth up to 25 microns and optional shot-blasting finishes to meet diverse architectural and industrial requirements. CNC machining and fabrication service are all available for the anodized aluminum extrusions.

Industrial-Scale Anodizing Infrastructure
Purpose-Built Tank Sizing – Every tank dimension is matched to its chemical function. Critical electrolytic stages get larger capacity; pre-treatment and sealing stages are precisely sized for efficiency.
End-to-End Process Line Capacity – Every stage of our anodizing line, from degreasing to hot sealing, is engineered to operate at volumes between 8,600 and 11,700 Litres, supporting continuous large-scale production with precision chemical control at every step.
Sulphuric Anodizing Tank - The allocation of the larger tank for Sulphuric Anodizing is justified given its critical role in the process. The additional capacity in the larger tank (11,700 litres) is crucial for maintaining bath stability during the extended dwell times required for aluminium profiles.

Fabrication

Fire Stone Metal Pvt. Ltd. provides comprehensive, high-precision engineering solutions through our state-of-the-art in-house OEM facility. We specialize in the end-to-end execution of diverse aluminum fabrication requirements, ensuring quality and precision from initial concept to final delivery. Our facility is fully equipped to handle specialized project specifications, offering a robust suite of technical capabilities:

  • CNC Precision Cutting : Advanced cut-to-length and specialized services for exacting tolerances.
  • Mechanical Processing : High-efficiency punching, drilling, and tapping.
  • Solar Fabrication : Automatic Solar Fabrication facility
  • Custom Engineering : The flexibility to accommodate any special requirement or bespoke project specification.

By integrating these core competencies under one roof, Fire Stone Metal Pvt. Ltd. offers the versatility and technical expertise necessary to meet any unique or complex manufacturing requirement.

Solar Panel Frame Fabrication Facility

A complete, end-to-end manufacturing solution engineered for high-volume PV solar frame production — covering both short-side and long-side processing in a single, optimised workflow.

What the Line Does
  • Manual loading & Automatic feeding — minimal manual intervention from the first step.
  • Precision cutting — consistent dimensional accuracy across every run
  • Holes & grounding mark punching — clean, repeatable results at speed
  • Corner key insertion — automated fitment for structural integrity
  • Riveting point punching — high-strength joins, cycle after cycle
  • Automated stacking — finished frames handled and sorted without downtime
  • Automated & Scalable Production — production line that reduces handling time, cuts energy costs, and delivers consistent output — ready to scale with your solar manufacturing demands.
  • Superior Accuracy — ±0.2 mm punching / ±0.3 mm cutting consistency

Equipment features

Designed for intelligent processing of photovoltaic aluminium frames — automatically completing precise feeding, precision sawing, bi-axial stamping, angle joint installation, and accurate punching of water holes, mounting holes, and grounding marks in a single automated sequence.

Technical parameters of equipment
  • Control mode : CNC control (Computer Numerical Control);
  • Processing efficiency : 8-12 finished products / minute；
  • The longest workpiece range : 6 meters;
  • Daily output : about 6,000 finished products per 10 hours of daily output
  • Long Frame Processing Range : 750-2400mm,
  • Short Frame Processing Range : 660-1400mm,