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Manufacturing Process

How we
make it.

One documented workflow — from your enquiry through fabrication, surface treatment, packing, and delivery. Every part is inspected at each stage before it moves forward.

4
Workflow phases
30
Steps enquiry to dispatch
100%
Parts inspected
ISO
9001 in process
01

Enquiry to Order

From your first enquiry to a released production order — 4 stages

01
Enquiry & Drawing Review
We review your drawings or sample part — material, dimensions, tolerances, and finish.
02
Quotation & Order
A detailed quotation covering material, processes, and delivery schedule. Production begins on confirmation.
03
Design & Development
Our NPD team finalises flat patterns, bend allowances, and weld details before any material is cut.
04
CNC Laser Programming
Approved drawings are nested for material yield and released to the floor with a route card.
2D drafting and flat-pattern development
Flat patterns and nesting — AutoCAD
3D modelling and sheet-metal unfolding
3D modelling and unfolding — SolidWorks
Order confirmed — material enters the works
02

Fabrication

Raw material through to pre-coat finishing — 6 stages

01
Raw Material Inspection
Incoming sheet is checked visually, tested by NDT, and verified against the material certificate.
Raw Material Inspection
02
Laser Cutting
AMADA CO₂ and fiber platforms, dimensions checked after every cut. FOM 2 (2.5kW), LCG 3015AJ (2kW), G-Weike LF3015GA (1kW).
Laser Cutting
03
Punching, Notching & Drilling
Holes, notches, and slots per drawing. Flat pattern inspected before bending.
Punching, Notching & Drilling
04
Bending
AMADA press brakes, angle verified to ±0.1° after each setup. RG M2 ×2 (100T/3m) and RG80 (80T/2.5m).
Bending
05
Welding
MIG, TIG, spot, ARC, or Fanuc robotic, selected by joint and volume. Welds inspected before the next stage.
Welding
06
Grinding & Finishing
Weld seams ground and surfaces sanded to the specified finish, with dimensional and visual sign-off.
Grinding & Finishing
Fabrication complete — Surface Treatment begins
03

Surface Treatment

7-tank phosphating, passivation, primer, powder coat, and bake — fully in-house

A
Degreasing & De-Rusting
Fabrication oils and surface rust removed by alkaline immersion, each stage followed by a water rinse.
Degreasing & De-Rusting
B
Zinc Phosphating
Zinc phosphate applied by immersion for a crystalline surface that bonds with primer and resists corrosion. Passivation follows.
Zinc Phosphating
C
Primer Coat
Primer applied, thickness measured and cross-hatch adhesion tested before powder coating.
Primer Coat
D
Powder Coat & Dispatch
Powder applied electrostatically and baked at 200°C. Final check on coat thickness, scratch hardness, and flexibility.
Powder Coat & Dispatch
Complete Process Sequence
Every stage a job passes through, from your first enquiry to dispatch.
Enquiry & Engineering
01
Enquiry
Drawings or requirement received
02
Drawing Review
Material, tolerances & finish reviewed
03
Quotation
Material, processes & delivery schedule
04
Order Confirmation
Schedule agreed, job released
05
Design & Development
Flat patterns & weld details by NPD
06
Laser Programming
CNC nesting prepared
Fabrication
07
Material Inspection
Visual, NDT & certificate check
08
Laser Cutting
Dimensions checked after every cut
09
Punch / Notch / Drill
Per drawing
10
Inspection
Flat pattern verified
11
Bending & Setting
Angle checked to ±0.1°
12
Welding
MIG, TIG, spot or robotic
13
Grinding & Sanding
Seams dressed to finish
14
Inspection
Dimensional & visual sign-off
Surface Treatment
15
Degreasing
Alkaline immersion, water rinse
16
De-Rusting
Rust removed, water rinse
17
Pre-Dip
Surface conditioner
18
Phosphating
Zinc phosphate immersion, rinse
19
Passivation
Corrosion protection layer
20
Inspection
Phosphate thickness check
21
Drying
Air or oven
22
Primer Coat
Electrostatic application
23
Inspection
Primer thickness & cross-hatch test
24
Flinting
Surface key at 100 mesh
25
Powder Coat
Electrostatic application
26
Baking
200°C
27
Cooling
Controlled cooling
Packing & Dispatch
28
Final Inspection
Thickness · scratch hardness · flexibility
29
Packing
Protected for transport
30
Dispatch
Delivered to schedule
Coating complete — final inspection and dispatch
04

Packing & Delivery

Final checks, protection, and dispatch — 3 stages

01
Final Inspection
Coat thickness, scratch hardness, flexibility, and final dimensions checked against the drawing. Anything outside specification is reworked before it leaves.
02
Packing
Parts are protected for transport — film wrap, edge protection, and palletising as required by the part and the customer.
03
Delivery
Dispatched against the schedule confirmed at order stage. Documentation accompanies every consignment.
Quality Control

What gets checked at each stage.

These checks are carried out on every job. ISO 9001:2015 certification is currently in progress.

On Arrival

Visual surface condition
NDT examination
Chemical composition
Dimensions vs specification
Material certificate review

During Production

Dimensions after laser cutting
Flat pattern after forming
Bend angle — ±0.1° tolerance
Weld visual and dimensional
Phosphate coat thickness
Primer adhesion cross-hatch

Before Dispatch

Powder coat thickness
Scratch hardness test
Coating flexibility test
Final dimensional check
Visual finish inspection
Contact

Discuss a project
with our team.

Send us your drawings or a sample part by email at srisaiindustries@hotmail.com, or call 080-41492760, Monday to Saturday, 8:30 AM to 8:30 PM.

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