Drawing / DFM Quote / RFQ Tooling / Die Casting / Pour CNC Machining Finishing Inspection / Caliper NDT / X-ray Shipping Customs / Import Lead Time One U.S. Contact Quality Assured ISO 9001 Certified Certificate of Conformance Audit Ready Hardness / NDT Quality Cost / Landed Fit U.S. Managed Die Casting Sand Casting CNC Machining Sheet Metal Metal Injection Molding Investment Casting Automotive Medical Defense Heavy Machinery Industrial Equipment Oil & Gas Construction Agriculture Energy Aerospace Alloy / Metal

Sand Casting in India

Aluminum, iron, steel, and brass sand castings from ISO 9001 certified foundries in India, anchored in Coimbatore with raw material and tooling sourced in-country.

Trusted by Programs across Tier 1 suppliers, Fortune 500 OEMs & hardware startups
  • Honda
  • Libman
  • Mahindra
  • Meyer
  • MIT
  • Amazon
  • Bloom Energy
  • Circor
  • Halliburton
  • Honda
Sand Casting in India capabilities

Technical Capabilities

Review core sand casting in india capabilities, materials, tolerances, inspection methods, and production requirements before requesting a quote.

Production envelope · Verified
Iron, steel, aluminum, and brass 01
7 alloys
Green sand, shell, lost foam + more 02
4 processes
NDT inspection 03
X-ray + UT
Materials
Grey iron, ductile iron, stainless steel, alloy steel, carbon steel, aluminum, and brass
Process
Green sand, resin and no-bake, shell mold, and lost foam casting
Request a Quote

See Our Process Or same-day technical feasibility review

Production specifications

Part size
Small components to large, heavy castings; reviewed case by case
Tolerances
±0.030" as-cast per CT grade, ±0.005" on machined features, down to ±0.002" with secondary CNC
Finishing
Shot and sand blasting, grinding and deburring, CNC machining, heat treatment, powder coating, painting, anodizing, and plating
Inspection
Dimensional checks, chemical analysis, hardness testing, and X-ray and ultrasonic NDT
Certifications
ISO 9001
Standard lead time
4-8 weeks

Production Process

01 DFM Review
02 Tooling
03 Trial Pours
04 Production
Next step

Ready for technical review?

Share your part details, drawings, or CAD files. Redstone will review the requirements and confirm feasibility, tolerances, materials, lead time, and next steps.

  • Feasibility review based on your drawing or CAD file
  • Material, tolerance, and production requirements confirmed
  • Quote reviewed within 24 hours
Get started Request a Quote or Talk to an Engineer

Final specifications are confirmed during the technical feasibility review.

Why Redstone

Quality, cost, and a clear fit

Redstone helps hardware teams move from released drawings to repeat production with documented quality, competitive unit costs, and engineering support from the U.S.

  • ISO 9001 certified facilities
  • U.S.-based engineering support
  • Direct manufacturing partner
Quality

Certified castings you can audit

Every casting in India runs to ISO 9001 with dimensional checks, chemical analysis, and hardness testing. Critical parts add X-ray and ultrasonic inspection, and each shipment ships with the documentation a customer quality audit expects.

  • ISO 9001 certified foundries
  • Dimensional checks, chemical analysis, and hardness testing
  • X-ray and ultrasonic NDT on critical castings
  • Certificate of Conformance with every shipment
Cost

Lower landed cost, sourced in-country

The sand casting process carries low tooling cost, so it is the affordable route for large and medium-volume parts and complex geometries. Coimbatore's established foundry cluster supplies raw metal and pattern tooling locally, which keeps cost competitive for hardware OEMs and industrial suppliers. We quote on landed cost, with freight and duties in the number before you see it.

  • Low tooling cost compared with die casting
  • Local raw material and tooling keep cost down
  • Unit pricing by volume tier
  • No offshore quote desk between you and the foundry
Fit

Is this a fit?

Redstone is built for hardware OEMs and industrial suppliers moving cast iron, steel, or aluminum parts into production in India. Our foundries are comfortable at low or high volume, from a pilot run to a scaled program.

  • Hardware OEMs and industrial suppliers
  • Iron, steel, aluminum, and brass castings
  • Low or high production volumes
  • Parts produced from released drawings and models
Parts built for production

What we produce

Redstone supports production metal parts across automotive, electronics, industrial equipment, and consumer hardware programs.

Automotive cast components

Automotive cast components

Engine blocks, manifolds, brackets, and housings cast in iron and aluminum and inspected to ISO 9001 for sustained automotive production.

Heavy machinery castings

Heavy machinery castings

Gearboxes, pump bodies, and industrial frames cast in ductile iron and steel for durable, load-bearing equipment.

Oil and gas hardware

Oil and gas hardware

Valves, flanges, and pressure-resistant parts cast in corrosion-resistant alloys and verified by NDT.

Construction and infrastructure

Construction and infrastructure

Supports, connectors, and custom metal fittings cast for strength and long service life in demanding environments.

From quote to production

A five-step process, documented at every handoff

From initial drawings to final delivery, Redstone keeps each stage clear, documented, and aligned with production requirements.

Each handoff is documented. No stage moves forward until drawings, materials, and production requirements are confirmed with the customer.

  1. 01

    Submit Your Drawings

    Upload your 3D model or technical drawing. Our engineering team reviews every submission for manufacturability and recommends the best casting method before quoting.

  2. 02

    Receive a Quotation

    A detailed quote covering tooling, materials, casting, machining, lead time, and finish options. One U.S. point of contact, start to finish.

  3. 03

    Pattern and Tooling

    We produce CNC-machined or 3D-printed patterns and core boxes sized to your part, then prove the tooling before any production release.

  4. 04

    Casting Production

    Molten metal is poured into the sand molds under controlled conditions, with in-process checks to hold consistent quality across the run.

  5. 05

    Finishing, Inspection, and Delivery

    After shakeout, each casting is cleaned, finished, and inspected. We are the importer of record and coordinate freight to your dock with a Certificate of Conformance.

Industries

Industries we cast for

Redstone supports production sand casting programs for OEMs and engineering-led teams that require repeatable quality, controlled costs, and reliable part production.

  • Automotive

    Automotive

    Production components for automotive Tier 1 and Tier 2 suppliers and specialty OEM programs, run to IATF 16949 in certified facilities with U.S. engineering oversight from quote through delivery.

    • You run automotive components at production volume, not one-off prototypes.
    • Your program needs IATF 16949 quality and audit-ready documentation.
    • You are a Tier 1 or Tier 2 supplier, or a smaller OEM program that wants production-grade quality without a large-OEM minimum-order gate.
  • Heavy Machinery

    Heavy Machinery

    Production sand casting in india components for heavy machinery programs, run to documented quality with U.S. engineering oversight.

    • Recurring production volume
    • Documented dimensional inspection
    • One U.S. point of contact
  • Oil and Gas

    Oil and Gas

    Production sand casting in india components for oil and gas programs, run to documented quality with U.S. engineering oversight.

    • Recurring production volume
    • Documented dimensional inspection
    • One U.S. point of contact
  • Construction

    Construction

    Production sand casting in india components for construction programs, run to documented quality with U.S. engineering oversight.

    • Recurring production volume
    • Documented dimensional inspection
    • One U.S. point of contact
  • Agriculture

    Agriculture

    Production sand casting in india components for agriculture programs, run to documented quality with U.S. engineering oversight.

    • Recurring production volume
    • Documented dimensional inspection
    • One U.S. point of contact
  • Energy

    Energy

    Production sand casting in india components for energy programs, run to documented quality with U.S. engineering oversight.

    • Recurring production volume
    • Documented dimensional inspection
    • One U.S. point of contact

Not sure if sand casting fits your part?

Final step

Ready to review your part?

Share your drawings, CAD files, or production requirements. Redstone will review feasibility, materials, tolerances, lead time, and the best manufacturing path for your program.

  • ISO 9001 and IATF 16949 certified facilities
  • U.S.-based engineering support
  • Quote reviewed within 24 hours
  • Production support across Redstone’s facilities in the U.S., Mexico, and China
Resources

From the engineering desk

Visit the Resource Hub

Frequently asked questions

Don’t see your question? Request a quote and our engineering team will answer it.

Why is sand casting used?

Sand casting handles metals with high melting temperatures at low cost, and it suits a wide range of part sizes and volumes. It is an affordable way to cast larger parts without expensive machining.

Where does the raw material and tooling come from?

Our India foundries draw on the established foundry cluster around Coimbatore for raw metal and pattern tooling, which keeps tooling lead time and per-unit cost competitive. The best alloy and tooling approach is confirmed at the feasibility review.

Is sand casting expensive?

Among the common metal casting methods, sand casting is the least expensive for smaller batch runs, and it stays cost effective for large-part production thanks to low tooling cost.

What is the sand casting process?

A pattern is used to form a cavity in a packed sand mold, cores set any internal features, and molten metal is poured in and left to solidify. After shakeout the casting is cleaned, finished, and inspected. The sand casting process handles a wide range of part sizes and complex geometries at low tooling cost.

Do you produce steel and aluminium sand castings?

Yes. We pour grey iron, ductile iron, stainless steel, alloy steel, carbon steel, aluminium, and brass. Steel casting suits high-strength, load-bearing parts, while aluminium suits lighter components, and our engineering team confirms the best alloy at the feasibility review.

What materials can you cast?

We cast grey iron, ductile iron, stainless steel, alloy steel, carbon steel, aluminum, and brass. Our engineering team confirms the best alloy for your part at the feasibility review.

What are your standard lead times for India production?

Standard production lead time is 4 to 8 weeks from India, with tooling and first-article timing confirmed at the quote stage. Our foundries handle both low and high volume, and rush programs can be reviewed case by case.

How do customs and delivery work?

We are the importer of record and manage customs clearance from India, then coordinate freight to your dock with tracking. Duties and freight are quoted up front, so there is no surprise on the invoice.