Design · Manufacturing · Precision machining
Precision industrial parts, made exactly to your drawing
CNC milling and turning, wire EDM, grinding, welding and special-purpose machine building in Karaj, Iran — from a single piece to production runs.
- years of experience
- 29
- machining precision
- 0.01mm
- minimum order
- 1 piece
- shipping across Iran
Since
Nearly three decades of industrial manufacturing
Rezaei Industrial Group has been designing and manufacturing industrial parts and special-purpose machines, with CNC and manual machining, since 1997. Every part is made to order in exactly the quantity requested — from a single spare part to production batches. Our strengths are build quality and fast turnaround, and before production we offer technical advice to make your drawing or machine simpler and more economical to build.
Our services
Whatever part you need, we build it exactly to your drawing or sample.
CNC Milling
Prismatic parts, pockets, slots and complex surfaces on a CNC mill with 1000×500×500 mm travel.
Learn moreCNC Turning
Shafts, bushings, flanges and round parts on a CNC lathe up to Ø250 × 600 mm.
Learn moreWire EDM
Precision cutting of hardened metals, punches, dies and complex profiles to 0.01 mm.
Learn moreSurface & Cylindrical Grinding
Final finishing of flat surfaces and diameters to 0.01 mm.
Learn moreManual Turning & Milling
Making and repairing parts on a 1 m manual lathe and a manual mill — fast and economical.
Learn moreLaser, TIG & Arc Welding
Clean, precise joining of steel, stainless steel and aluminium.
Learn moreDrilling & Tapping
Drilling up to Ø50 mm and tapping up to M24 and 1"; automatic tapping up to M16.
Learn moreSpecial-Purpose Machine Design & Build
Design and build of custom machines, fixtures and production-line equipment.
Learn moreParts from Samples (Reverse Engineering)
Parts made from an old sample, a photo or a hand sketch — even without a drawing.
Learn moreTooling & Prototyping
Mould components, punches and dies, and prototypes before production.
Learn more
Precision measured in hundredths of a millimetre
With CNC, wire EDM and grinding machines, your part is made and inspected to tolerances as tight as 0.01 mm.
0.01mm
Machinery and capabilities
View equipmentCNC milling machine
Working area: 1000 × 500 × 500 mm
CNC lathe
Max. diameter: 250 mm
Wire EDM
Working area: 700 × 300 mm
Surface grinder
Precision: 0.01 mm
A simple, transparent ordering process
- 1
Send a drawing or sample
Send a drawing, photo, CAD file or even a hand sketch of the part.
- 2
Technical review
We review it and suggest simpler, more cost-effective ways to make it.
- 3
Price and lead time
You receive a clear price and delivery date.
- 4
Machining
The part is made on the right machine with precise tooling.
- 5
Quality control
Dimensions are inspected with tools suited to the part's tolerances.
- 6
Packing and shipping
Safely packed and shipped anywhere in Iran.
Quality control on every part
Inspection is matched to how critical each part is, using the right instruments.
- Digital calipers and depth gauges
- Micrometers in a range of sizes
- Internal bore gauges in a range of sizes
- Optical and CMM inspection when required
Why Rezaei Industrial Group?
- 01
Build quality
Nearly three decades of experience making precision industrial parts.
- 02
Fast delivery
Careful scheduling for quick turnaround, even for single parts.
- 03
From 1 piece up
We make exactly the quantity you need.
- 04
Free consulting
Advice on making your drawing or machine simpler and cheaper to build.
Frequently asked questions
What is the minimum order quantity?+
The minimum order is 1 piece. The maximum quantity depends on the drawing, the part and the required time.
What do I need to send to order a part?+
A technical drawing, a sample part, a photo or even a description and hand sketch is enough. If needed, we prepare the drawing ourselves.
What is the lead time?+
Lead time depends on the drawing or sample and is confirmed together with the price after review.
Do you ship to other cities?+
Yes. Parts are shipped across Iran in protective packaging so they are not damaged in transit.
What precision can you achieve?+
Up to 0.01 mm with wire EDM and grinding, and up to 0.02 mm with CNC milling and turning.
How can I send my drawing?+
Through the quote form on this website, email, WhatsApp, Telegram or Iranian messengers such as Eitaa, Bale and Rubika. DWG, DXF, STEP, PDF and photos are accepted.
Do you offer advice to reduce manufacturing cost?+
Yes. Before production we review the drawing or machine and suggest simpler, more economical options.
Send us your drawing or sample part
We will reply quickly with a price and lead time. Shipping across Iran.