Row of sliding-head CNC machines with bar feeders on the S R Automats shop floor

Est. 2003 · Rajajinagar Industrial Town, Bengaluru

Turned to the drawing. Every batch.

S R Automats machines precision turned components on sliding-head CNCs, turning centres and cam automats for OEMs in automotive, electronics, hydraulics and industrial equipment, from prototype quantities to volume production.

20+Years in production
39Machines in-house
14CNC machines
Ø42Max bar capacity, mm

About the company

Two decades of bar-fed precision.

S R Automats is a proprietary manufacturing concern founded in 2003 in Bengaluru's Rajajinagar Industrial Town. We manufacture and job-work automat and CNC turned components to customer drawings, in metals and engineering plastics.

Most of our customers run ISO-certified quality systems, so we work to their inspection plans. Every batch is checked against the drawing, traceable to its raw-material lot, and packed to arrive ready for assembly. Our parts also reach the USA as part of our customers' export assemblies.

We take on prototypes, small batches and large-scale runs, and work with customers' engineers on material choice, tooling and manufacturability before the first chip is cut.

S. RamanathanFounder & Proprietor · 30+ years in precision manufacturing
Sliding-head CNC lathe with finished turned parts in a tray
SLIDING-HEAD CNC · BAR-FED · UNATTENDED CYCLES

Capabilities

From bar stock to finished part.

Primary turning and secondary operations are done under one roof, which keeps lead times short and gives us full control of the tolerance chain.

Citizen Cincom A20 sliding-head CNC lathe
Ø20 · Ø26 · Ø32 mm

Sliding-head CNC turning

Swiss-type machines from Tsugami and Citizen turn long, slender and complex parts in a single setup, fed by automatic bar loaders.

  • Tsugami ×6
  • Citizen A20 ×3
  • Bar feeders
CNC turning centre with control panel on the shop floor
Chucking work

CNC turning centres

LMW and Geedee Weiler turning centres handle larger diameters, flanges, bores and short, stocky components with repeatable accuracy.

  • LMW ×3
  • Geedee Weiler ×1
Multi-spindle cam automat lathes loaded with steel bars
Up to Ø42 mm

Cam automats

Traub and PMT automats produce high-volume, simpler profiles such as pins, bushes and fittings at the lowest cost per piece.

  • Traub A42 ×2
  • PMT A25 ×2
Secondary machining cell with drilling and milling machines
Secondary ops

Milling, drilling & thread rolling

Dedicated machines for polygon milling, cross drilling, tapping, slotting, knurling and thread rolling complete the part to drawing.

  • Polygon CNC
  • Thread rolling
  • Drill / tap ×13

Sliding-head CNC in action

Watch a part being made.

Footage from our sliding-head line: bar stock fed by the Steady 326 bar feeder, gang tools cutting under flood coolant, and finished parts collected straight from the machine.

  1. 00:00Machine & bar feeder
  2. 00:09Turning under coolant
  3. 00:23Finished parts
Live cut · looping

What we make

Components that hold assemblies together.

Every part is made to the customer's drawing. These are the families we produce most often.

Stepped stainless shaft with threaded end

Shafts, axles & pins

Stepped and grooved shafts with close diameter tolerances and fine surface finish for rotating assemblies.

Stainless socket-head cap screws

Fasteners & special screws

Special bolts, screws, studs and nuts with rolled or cut threads, in steel, stainless and brass.

Hexagon fittings with cross-drilled holes and internal thread

Connectors & couplings

Hex-bodied fittings, adaptors and couplings for hydraulic, pneumatic and fluid-handling systems.

Flanged bush and sleeve ring

Bushings & sleeves

Flanged and plain bushes with concentric bores for wear surfaces in engines, gearboxes and machinery.

Tapered needle pins with collar

Valve components

Valve stems, spindles, seats and bodies for flow control in plumbing, HVAC and industrial process equipment.

Copper terminals with threaded square heads

Electrical contacts & pins

Small, intricate brass and copper pins, terminals, contacts and housings for electrical and electronic products.

Parts portfolio

Made on our machines.

A selection of components from regular production, from micro pins a few millimetres long to multi-feature fittings finished with milling, cross drilling and threading.

Stainless flanged fittings with milled slots
Flanged fittingsTurned · milled · threaded
Hexagon plug with offset drillings and fine thread
Hexagon plugsOffset drilling · fine thread
Stainless cam component with milled profile and cross holes
Cam bodyProfile milling · cross holes
Perforated stainless cups with drilled hole pattern
Perforated cupsPCD hole pattern
Group of micro turned pins and studs
Micro componentsSliding-head CNC
Knurled threaded insert and ring
Knurled insertsKnurling · internal thread
Shafts with milled flats and cross hole
Spindles with flatsMilled flats · cross hole
Engineering plastic bush and flanged part
Plastic componentsEngineering plastics
Nozzle bodies with multiple drilled orifices
Nozzle bodiesMulti-hole drilling
Machined face of a valve body with four ports
Valve body faceFace grooving · ports
Threaded pin and slotted spindle with cross drilling
Threaded pinsCross drilling · slotting
Hexagon threaded adaptors with internal bore
Threaded adaptorsHex · external thread

Plant & machinery

Our machine list.

Japanese, German and Indian machines, run by engineers, setters and operators who know them well.

Supporting equipment for grinding, deburring and slotting is held alongside the main machines, together with a full inspection room.

Current works: 3,000 sq ft built area, Rajajinagar Industrial Town.

MachineMakeType / sizeQty
CNC
Sliding head CNCTsugamiØ321
Sliding head CNCTsugamiØ263
Sliding head CNCTsugamiØ202
Sliding head CNCCitizenA20-3F71
Sliding head CNCCitizenA20-4F72
CNC turning centreLMW—3
CNC turning centreGeedee Weiler—1
Polygon milling CNCBrisk Tech—1
Automats
AutomatTraub (Germany)A422
AutomatPMTA252
Secondary operations
Thread rolling machinePraga5/21
Milling machineWeiler1″1
Milling machineKMPT12 mm3
Drilling machineKMP½″4
Drilling / tapping machineITCO¾″3
Drilling / tapping machinePMT1½″3
Tapping machineBharat¼″2
Bench grinderIFCO—4
Total main machines39
Ø = maximum bar diameter, mm. Supporting grinding, deburring and slotting equipment not listed.

Manufacturing process

Nine operations, one routing.

Each order follows the same documented route, so every batch is made, checked and packed the same way.

Long bar loader feeding a CNC machine along the shop floor
  1. Raw material inspection

    Bars arrive with mill test certificates. We verify grade, diameter, straightness and finish, then tag each lot with a batch number.

  2. Bar cutting & feeding

    Bars are cut to length or loaded straight into sliding-head machines through automatic bar feeders.

  3. CNC turning

    Facing, step turning, grooving, threading, chamfering, boring and contour profiling form the part's base geometry.

  4. Secondary machining

    Milling, cross and deep-hole drilling, tapping, reaming, slotting, polygon milling, thread rolling and knurling as the drawing requires.

  5. Deburring & finishing

    Burrs removed and edges broken, followed by grinding, polishing and cleaning to the specified finish.

  6. Heat treatment & plating

    Through approved vendors when specified: case hardening, nitriding, zinc or nickel plating, black oxide, passivation and anodising.

  7. Inspection & QC

    Dimensional, thread and surface-finish checks with functional gauging and SPC. Only conforming parts are released.

  8. Cleaning & packing

    Ultrasonic cleaning where needed, rust-preventive oil, corrosion-resistant packing and labels with batch, quantity and customer code.

  9. Dispatch

    Delivered to customer plants across Karnataka and beyond, with traceability back to the raw-material lot.

Materials, finishes & inspection

Built on measurable quality.

Even a small deviation from the drawing can stop an assembly line. That is why inspection runs through every stage of production, from incoming bar to final pack.

Materials

  • Stainless steelSS 303 · 304 · 316
  • Bright & carbon steelBar stock
  • Alloy steelBar stock
  • BrassRods
  • AluminiumBars
  • CopperBars
  • Engineering plasticsNylon · Delrin · PTFE · PEEK

Finishes & treatments

  • Case hardeningHeat treatment
  • NitridingHeat treatment
  • Zinc platingCoating
  • Nickel platingCoating
  • Black oxideCoating
  • PassivationStainless
  • AnodisingAluminium

Inspection instruments

  • Rapid VMSVision measuring
  • Digital microscopeMagnified features
  • Micrometers & verniersDimensional
  • Bore & air gaugesInternal Ø
  • Plug & thread gaugesGo / No-go
  • Height & dial gaugesForm, runout
  • Profile projectorContour
  • Surface finish checksRa
  • SPCProcess control
Rapid-I vision measuring system with its measurement software on screen
Rapid-I vision measuring system (VMS)

Inspection room

Loyalty to our customers is our first principle. Quality is how we keep it.

Parts are checked in a separate inspection room. Our Rapid VMS measures profiles, diameters, hole positions and angles without contact, and a digital measuring microscope magnifies small features such as drilled ports and edges on screen. Raw-material checks, in-process inspection and final inspection are recorded for every batch, giving full traceability from the bar to the box.

Digital measuring microscope showing a four-port part on the monitor
Digital measuring microscope
Inspection room with microscope station and VMS
Inspection room

Industries served

Where our parts go to work.

AutomobileElectrical & electronicsHydraulics & pneumaticsIndustrial equipmentAerospaceMedical equipmentHome appliancesGeneral engineering

Inside the plant

The shop floor.

Our customers

Built for OEM supply.

Long-standing supply relationships with OEMs and tier suppliers, most of them running ISO-certified quality systems.

EXPORTOur components are supplied to the USA through customer assemblies.

Contact

Send us your drawing.

Share the part drawing, material and annual quantity. We will come back with a feasibility review and quotation. Enquiries from India and overseas are welcome.

Phone+91 98441 77537
Phone+91 94498 50975
Emailsrautomats@gmail.com
WorksNo. 48, 2nd Main Road, Industrial Town, Rajajinagar, Bengaluru 560 044, KarnatakaMap
Please attach your drawing (PDF / DWG / STEP) when you email the enquiry.