Your partner in precision CNC contract manufacturing
KarpaX Engineering, formerly known as Karpagam Tools and Dies, is a contract manufacturer specializing in valves, trim parts, flanges, and precision components.
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In-house manufacturing capabilities
Programming, machining, and reverse engineering handled under one roof, so a part moves from concept to finished component without leaving the shop.
CNC turning
- Max OD Ø580 × 800 mm length
- Bar stock or forged blanks, single pieces to production batches
VMC machining with 4th-axis
- Max travel X 1016 × Y 508 × Z 635 mm
- Complex profile and 4th-axis simultaneous milling and 3D milling
- Precision components to tight tolerances
CAM programming
- NC programs built and post-processed from 2D drawings or 3D models
- Verified on simulator before the first cut on the machine
Reverse engineering
- 2D and 3D CAD generated from your physical sample
- Critical dimensions confirmed with you before machining starts
Laser marking
- 30W laser marking system
- Marking area 100 × 100 mm
Our partner capabilities
Coordinated by us, delivered as part of your finished component. Your part arrives finished, treated, and inspected.
Open die forging
- Blanks up to Ø800 × 320 mm thick
- Shafts up to Ø250 × 2,500 mm long
- Forged valve and industrial components
- Single-piece and low-volume runs
Ring forging
- OD up to Ø2000 mm, ID from Ø135 mm, thickness up to 300 mm
- Forging weight 30 to 500 kg
- Valve, flange, and industrial rings
Heavy machining
- Heavy-duty turning, max dia Ø3000 mm, max length 2000 mm
- Suited for large shafts, flanges, and heavy rotational parts
- CNC milling, bed travel X 2000 × Y 1500 × Z 1000 mm
- Suited for large housings, plates, and structural parts
Grinding
- Cylindrical grinding, shaft dia Ø560 × 3200 mm length
- Centerless grinding, small pin dia Ø25 × 200 mm length
- Surface grinding, bed travel X 1000 × Y 500 × Z 300 mm
CNC waterjet cutting
- Bed size X 3000 × Y 2000 × Z 300 mm
- Complex profiles and contours for steel, aluminium, brass, composites, and more
CNC laser cutting
- CNC laser cutting up to 18 mm thick
- Accurate profiles and repeatable production for sheet and plate components
Surface finishing
- Anodizing for aluminium
- Blackening and black oxide for steel
- Electroplating in nickel, zinc, chrome, and more
- Hard chrome plating and powder coating
Heat treatment
- Hardening
- Annealing
- Tempering
Industries we work with
Different sectors, one requirement: the part has to be right the first time, because the cost of a failure downstream is far higher than the cost of the component.
Oil and gas
Flanges, valve and trim components, and flow control parts in carbon and stainless grades.
Automotive
Steering knuckles and uprights, off-road vehicle components, and machined assemblies.
Textile
End bushes and gear mounting boxes for textile machinery manufacturers.
Semiconductor
Enclosures and housings, machined to tight flatness and surface finish requirements.
Aerospace and defence
Linkage brackets, hinges, mounts, and UAV components in aluminium, stainless, and Inconel.
Our in-house infrastructure
Every machine on the floor, with the work envelope it can hold to.
Vertical machining centres
| Machine | Notes | Work envelope (travel, all in mm) |
|---|---|---|
| ACE MCV 450 | Vertical machining centre with 4th axis UCAM rotary | X 800 · Y 450 · Z 500. Rotary dia 200, repeatability 4 arc sec |
| Haas VF3 | Vertical machining centre | X 1016 · Y 508 · Z 635 |
| Haas VF2 | Vertical machining centre | X 762 · Y 406 · Z 508 |
| ACE MCV 450 Plus | Vertical machining centre | X 800 · Y 500 · Z 500 |
CNC turning centres
| Machine | Capacity (all in mm) |
|---|---|
| ACE Vantage 800 | Max turning dia 580 · Turning length 800 |
| ACE Jobber 500 | Max turning dia 320 · Turning length 500 |
| ACE Jobber 500 | Max turning dia 320 · Turning length 500 |
Support equipment
| Machine | Use |
|---|---|
| Laser engraver, 30W | Part marking, serial numbers, identification plates |
| Horizontal milling machine | Secondary operations |
| Pillar drilling machine | Secondary operations |
Materials we machine
Eight material families in regular production, including certified forged alloy grades for pressure and valve work.
Carbon steel (mild steel)
IS 2062, C40
Forged alloy steel
A105, A182 F22, F91, F304, F316, F92, F11
Stainless steel
SS 304, 316, 416, 410, 17-4PH, XM-19
Aluminium
6061, 6063, 7075
EN series
EN8, EN24, EN9
Non-ferrous
Copper, brass, phosphor bronze, gun metal
Super alloys
Inconel
Plastics
PTFE, Delrin
About KarpaX Engineering
KarpaX Engineering, formerly known as Karpagam Tools and Dies, was founded in 2012 by M. Swaminathan, who has over ten years of hands-on experience in jig and fixture manufacturing, tooling, and engineering applications.
He then established Karpagam Tools and Dies as an engineering job shop for providing customers with customized engineering solutions. As customer requirements evolved, the company transitioned into CNC component manufacturing and contract machining, specializing in the valve industry and expanding its customer base to OEMs and industrial manufacturers.
Manjunathan joined the business in 2021, bringing a next-generation perspective and gaining hands-on experience across production, new product development, and business development. Building on the foundation established by Swaminathan, he initiated the KarpaX Engineering rebrand as an evolution of the business, with a vision to expand into global markets through precision machining, new CNC technologies, automation, and technology-driven manufacturing.
Founded as Karpagam Tools and Dies
M. Swaminathan starts an engineering job shop offering customized engineering solutions.
Moved into contract machining
Transitioned into CNC component manufacturing, specializing in the valve industry and expanding to OEMs.
Second generation joins
Manjunathan brings a next-generation perspective across production, NPD, and business development.
KarpaX Engineering
An evolution of the business, built for global markets through precision machining and automation.
Send us your drawing, or send us the part
Share the 2D drawing, 3D model, or a sample of the component you need built. You'll have a quote and any manufacturability notes back within 24 hours.