Manufacturing Process
CNC / VMC / HMC
Precision
Machining.
In-house. Inspection-verified. Assembly-ready. Every casting, forging, and bar stock component Amsol supplies passes through our CNC machining centre — because the tolerance on the drawing is the tolerance on the part. Not an approximation.
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CNC Turning
Ø1–1000mm · IT5/IT6 · Ra 0.8 µm · threads · tapers · grooving
VMC / HMC Milling
3-axis & 4-axis · pockets · profiles · bores · ±0.01mm position
Grinding & Honing
Cylindrical · surface · internal bore · Ra 0.1–0.8 µm · IT5
EDM & Special
Wire EDM · sinker EDM · deep hole drilling · broaching · gear hobbing
Process Deep-Dive
In-House Machining. No Subcontracting. No Tolerance Risk.
When casting and machining happen under the same roof, under the same quality system, with the same engineers — the drawing dimension is what the component measures. That is the Amsol difference.
CNC Turning Photo
Lathe in operation · shaft turning
Close-up tool & chips
600 × 420px · cool blue tones
Lathe in operation · shaft turning
Close-up tool & chips
600 × 420px · cool blue tones
CNC Turning
Turning — Amsol Machine Shop
⚙️ CNC Turning — Lathe
Shafts. Pins. Flanges. Ground to h6. Every Time.
CNC turning for rotational components — shafts, pins, bushes, flanges, valve stems, piston rods. OD/ID turning, facing, grooving, threading, taper and form turning. From 1mm diameter to 1,000mm, with cylindrical grinding for bearing journals and sealing surfaces where Ra 0.4–0.8 µm is required.
Ø1–1000
Diameter range (mm)
IT5/IT6
Tolerance grade
Ra 0.4
Surface finish (µm)
±0.005
Achievable (mm)
VMC/HMC Milling Photo
Complex housing being milled
Multi-axis · coolant · tooling
600 × 420px · teal tones
Complex housing being milled
Multi-axis · coolant · tooling
600 × 420px · teal tones
VMC / HMC Milling
Vertical & Horizontal Machining Centre
🔲 VMC / HMC — 3 & 4 Axis Milling
Housings. Manifolds. Prismatic Components. ±0.01mm.
VMC (Vertical Machining Centre) for medium prismatic components — pockets, profiles, stepped faces, bore patterns, threaded holes. HMC (Horizontal Machining Centre) for larger workpieces requiring multiple face access in one setup — gearbox housings, engine blocks, pump manifolds. 4-axis indexing for complex angular features.
4-Axis
Max indexing
±0.01
Position tolerance (mm)
Ra 1.6
Standard finish (µm)
H7/H6
Bore fit standard
Grinding Photo
Cylindrical grinding — shaft
Sparks · precision measurement
600 × 420px · warm sparks
Cylindrical grinding — shaft
Sparks · precision measurement
600 × 420px · warm sparks
Cylindrical Grinding · Surface · Honing
Precision Grinding — Amsol Machine Shop
💎 Grinding & Honing
Ra 0.1 µm. h5 Shafts. Hydraulic Bores. Sealing Faces.
Grinding is where Amsol's machining capability separates from standard subcontract shops. Cylindrical grinding for bearing journals and precision shafts to h5/h6 with Ra 0.4–0.8 µm. Surface grinding for datum faces, sealing surfaces, and flat parallels to 0.003mm flatness. Internal bore honing to Ra 0.1–0.4 µm and ±0.002mm diameter — for hydraulic cylinders, pump bores, and engine liners.
Ra 0.1
Finest finish (µm honing)
IT5
Shaft tolerance (h5)
±0.002
Bore honing (mm)
0.003
Flatness per 100mm (mm)
Wire EDM Photo
Electric discharge cutting
Spark discharge · dielectric fluid
600 × 420px · purple/electric tones
Electric discharge cutting
Spark discharge · dielectric fluid
600 × 420px · purple/electric tones
Wire EDM · Sinker EDM · Deep Hole
EDM & Special Processes
⚡ EDM & Special Processes
Hard Alloys. Complex Profiles. Internal Corners to R0.1mm.
Wire EDM cuts complex profiles through hardened materials — no cutting forces, no distortion. Internal corners to R0.1mm radius. Sinker EDM for die cavities, mould inserts, and blind complex geometries. Deep hole drilling for oil passages and cooling channels to L/D ratio 20:1. Gear hobbing for spur and helical gears to DIN 5–8 quality.
R0.1
Internal corner min (mm)
20:1
Deep hole L/D ratio
HRC 65
Max material hardness
DIN 5
Gear quality (hobbing)
Tolerance & Finish Reference
What Amsol Achieves — Standard vs Maximum Capability
Every figure below is achievable at Amsol's facility — verified by CMM before dispatch. Standard column is what we deliver as default. Achievable column is what we deliver on precision programmes.
| Parameter | Standard Capability | Maximum Achievable |
|---|---|---|
| Linear dimensions | ±0.05mm | ±0.005mm |
| Bore diameter (H7) | IT6 (H7) | IT5 (H6) — grinding + honing |
| Shaft diameter (h6) | IT6 (h6) | IT5 (h5) — cylindrical grinding |
| Surface roughness Ra | Ra 1.6 µm (finish milled) | Ra 0.1 µm (honed bore) |
| Flatness | 0.02mm per 100mm | 0.003mm per 100mm |
| Cylindricity / Circularity | 0.01mm | 0.003mm (precision ground) |
| Thread tolerance | 6H / 6g | 5H / 5g (precision thread) |
| Hole position | ±0.02mm | ±0.005mm (CMM-verified) |
| Gear quality (hobbing) | DIN 7–8 | DIN 5–6 (ground gears) |
Facility
The Amsol Machine Shop
Replace photo placeholders with actual Amsol machine shop photography. Recommended shoot: wide shop floor, individual machines, close-up tooling, CMM in use, inspector measuring component.
MACHINE SHOP WIDE SHOT
Full shop floor · CNC machines · 800 × 520px
Full shop floor · CNC machines · 800 × 520px
Amsol Facility · Rajkot
CNC / VMC / HMC Machine Shop Floor
VMC MACHINE
400 × 260px
400 × 260px
Machine
Vertical Machining Centre
PRECISION SHAFT
400 × 260px
400 × 260px
Product
Ground Precision Shafts
CMM INSPECTION
400 × 260px
400 × 260px
Quality
CMM Dimensional Inspection
WIRE EDM
400 × 260px
400 × 260px
Special Process
Wire EDM — Precision Cutting
Where Amsol Machined Parts Go
Industries Served by Amsol Machining
Machining is Amsol's quality gateway — every industry we serve depends on it. These are the sectors where Amsol's machined components are active today.
Pump shaft photo
Pumps & Valves
Pump shafts ground to h6 · valve bores honed · seal faces ground Ra 0.4
Turning + Grinding
Railway pin photo
Railways
Coupler pins turned to h6 · lock components machined · flanges faced
CNC Turning
Gearbox housing photo
Power Transmission
Gear shafts ground · gearbox bores H7 · bearing seats precision ground
Grinding + Hobbing
Aerospace bracket photo
Aerospace
Precision bores ±0.005mm · Ra 0.4 · full CMM FAIR on every part
VMC + CMM
Oil gas valve photo
Oil & Gas
Valve bores · seat machining · thread cutting · pressure face finishing
Turning + Boring
Auto component photo
Automotive
Transmission components · brake machined surfaces · PPAP Level 3
VMC + PPAP
In-House Quality
Every Machined Component Verified at Amsol.
Not outsourced to a metrology lab. Not estimated from tool offset history. Measured on our own CMM, profilometer, and hardness tester — before dispatch.
CMM Inspection
3D CMM measures all critical features. Report with balloon numbers vs drawing provided every batch.
Spectrometer
Material grade verified before machining. GG25, 4140, CF8M — confirmed by OES, not trusted from cert alone.
Surface Roughness
Profilometer measures Ra on every machined surface specification. Ra 0.4 confirmed — not assumed.
Hardness Testing
Brinell / Rockwell per batch. Confirms heat treatment results — Q&T and case hardening verified.
PPAP Level 3
Full PPAP from real CMM data. PSW, PFMEA, Control Plan, Cpk/Ppk — accepted globally.
ISO 9001:2015
Annual audit. All machining processes documented. Non-conformance protocol: we call you before we ship.
📷
CTA Background · Finished machined components · 1920×840px
Get Started
Your Machining Drawing.
Your Machining Drawing.
Our Tolerance.
Share your drawing. An Amsol engineer will confirm tolerance achievability, process route, and indicative cost within 24 hours. DFM feedback included.
✓ DFM in 24 hours
✓ NDA available
✓ ISO 9001:2015
✓ In-house CMM