Heat treatment
Core process
Core equipment
Conveyor Furnace
Diesel & gas-fired · 10 metres
The backbone of our heat treatment process. Blanks travel through the full length of the furnace achieving consistent austenitisation throughout the disc cross-section — the critical prerequisite for uniform hardness after press quenching.
8 Zones
Independent temp control
16 Burners
Diesel & gas fired
10 metres
Furnace length
48–52
HRC achieved
28MnCrB5 steel
Press quench process
Martensitic microstructure
Press quench process
Martensitic microstructure
Quench system
Conveyor Quenching Tank
Inline with furnace · Controlled cooling
Conveyor-fed quenching tank positioned at the furnace exit. Discs transition directly from austenitisation temperature into the quench medium without handling — eliminating heat loss between furnace and quench, and ensuring consistent cooling rate across every disc in the batch. This continuity of temperature control is central to achieving repeatable 48–52 HRC hardness across production runs.
Inline conveyor system
No manual handling between furnace and quench
Controlled cooling rate
Consistent martensite formation across batch
Repeatable hardness
48–52 HRC batch-to-batch consistency
Heat treatment quality audit
SPA certified process
Process audit
Heat Treatment Special Process Audit
HT SPA · OEM qualification standard
Our heat treatment process has been formally audited against the Heat Treatment Special Process Audit (HT SPA) framework — the standard used by major agricultural and automotive OEMs to qualify their heat treatment suppliers. The audit covers furnace control, quench systems, temperature uniformity, hardness verification, and process documentation.
Completed
What was audited
Audit Scope
Three sections · Full process coverage
SECTIONS COVERED
Equipment & furnace qualification
Process control & temperature uniformity
Quality system & documentation
Hardness testing & verification
Quench system validation
Corrective action programme
Process control & temperature uniformity
Quality system & documentation
Hardness testing & verification
Quench system validation
Corrective action programme
What it means for buyers
OEM Qualification
Documented process · Traceable output
Completing a Heat Treatment SPA means our process is documented, controlled, and auditable to OEM standards. Buyers receive not just a blade with the right hardness — but evidence that the process which produced that hardness is repeatable, monitored, and independently verified.
Furnace temperature logs on file
Batch hardness records
Process parameter documentation
Batch hardness records
Process parameter documentation
Pressing & forming
5 press units
Heavy forming
Hydraulic Press
300 tons
Primary forming press for large diameter disc blanks. Used for concavity formation and press quench operations on heavy gauge material.
1 unit
Medium forming
Hydraulic Press
200 tons
Secondary hydraulic press for mid-range disc forming, press quench operations, and hub bore punching across standard product sizes.
1 unit
Blanking
Power Press
200 tons
High-speed blanking press for cutting circular disc blanks from 28MnCrB5 coil stock to precise diameter tolerances.
1 unit
Blanking
Power Press
150 tons
Mid-capacity power press for smaller diameter blanking operations and secondary forming work on coulter and notched disc profiles.
1 unit
Light forming
Power Press
100 tons
Light-duty press for smaller components, hub bore operations, and assembly forming tasks across the coulter blade range.
1 unit
Cutting
2 cutting systems
Precision cutting
Laser Machines
3 KVA · CNC
Two CNC laser cutting machines for notch profiles, U-cut scallops, complex coulter edge geometries, and precision bore holes. Dual-machine capacity enables continuous production runs without downtime between jobs.
2 units
Heavy cutting
Plasma Cutting Machine
200 Amp
High-amperage plasma cutter for heavy gauge steel cutting operations, large blanking work, and custom profile cutting where laser precision is not required. Capable of cutting thick-gauge 28MnCrB5 plate stock.
1 unit
Surface finishing
3 finishing lines
Machining & toolroom
9 machines
Turning
Lathes
General purpose
Centre lathes for turning, facing, and boring operations on hubs, flanges, and custom bearing seats across our disc and coulter range.
6 units
Milling
Vertical Milling Machine
Vertical spindle
Vertical milling for toolroom work, die maintenance, fixture making, and precision flat surface operations on custom components and tooling.
1 unit
CNC machining
CNC VMC
Jyoti · Vertical machining centre
Jyoti CNC vertical machining centre for precision multi-axis machining of dies, fixtures, and complex components. Enables high-accuracy toolroom work supporting the press and forming operations.
1 unit
Tools & dies
162 total
Forming tooling
Bending Tools & Dies
Concavity forming, edge profiles
In-house die set covering the full range of disc concavity profiles (flat, 28mm, 32mm, 36mm depth), edge bevel angles, and coulter profile bending operations. Maintained and refurbished on the in-house CNC VMC and vertical mill.
60 units
Blanking tooling
Cutting Tools & Dies
Blanking, punching, piercing
Comprehensive blanking die library covering all standard disc diameters from 380mm to 660mm, plus notch profiles, hub bore punches, and bolt hole piercing tools. Largest tooling asset in the facility.
102 units
Utilities & support systems
4 systems
Compressed air
Air Compressors
Facility-wide supply
Compressed air network serving presses, plasma cutter, shot blast, and powder coating lines.
10 units
Process cooling
Cooling Tower
Quench cooling
Cooling tower managing process water temperature for press quench and furnace cooling circuits.
1 unit
Fuel supply
Liquid Off-Take Gas Plant
LPG / industrial gas
Dedicated gas offtake plants supplying the conveyor furnace burners and heating operations throughout the facility.
2 units
Fabrication
Welding Sets
MIG / ARC
Welding capability for fixture fabrication, die maintenance, equipment repair, and structural work within the facility.
2 units
Capability enquiries
Need a custom disc specification? Our toolroom can produce new dies for non-standard profiles.