• AN GOVT. OF INDIA RECOGNIZED EXPORT HOUSE

Incoming Inspection:

Raw material (Coils, Bars, Flats) received from suppliers are checked at the Incoming stage against the following parameters.:

  • Dimensional Check
  • Chemical Testing
  • Mechanical Testing
  • Micro Structure
  • Visual
  • Decarburization
  • Step Down Test
  • Macro Etching
  • Ultra Sound

All the tested properties are matched with purchase specification and the RM TC of supplier and are then color coded if accepted. Material Is procured from only Primary sources such as JSW, JSPL, Bhushan Steel, Usha Martin, Jayswal Neco, RINL, Vizag, Upper India etc.

Annealing And Drawing:

After incoming inspection the raw material is annealed in bell type completely automatic Plc based spherodized-annealing furnace in controlled atmosphere.
Every grade runs on set Time cycles and every lot is there after inspected for Decarburization.
From here onwards, Material undergoes acid pickling followed by Phosphating.
Drawing is done maintain draw size, eliminate any kind of ovality.

Cold Forging:

Cold forging is performed on following machines:

  • Headers
  • Trimmers
  • Thread Rolling machines
Capacity:
  • Upto 27.00 mm diameter bolts are manufactured by cold forging operation.
  • 7 Nos. Installed ranging from M4- m27.

The in-process inspection (As per sampling plan) is carried out at regular intervals after clearing the first off inspection.
All parameters are checked as per standard and the job card.

Hot Forging:

Hot forging operation is performed in following steps:

  • Cutting of bar in required length
  • Chamfering
  • Heating of bar
  • Forging by Screw type forging press
  • Trimming to remove the excessive material.
  • Head and neck Machining
  • Grinding
  • Threading

Capacity:

  • Bolts from M24 up to M64 are manufactured by Hot forging Process.
  • Nuts From M16 up to M64 manufactured by Hot Forging Process
  • 4 Nos. Installed

The in-process inspection (As per sampling plan) is carried out at regular intervals after clearing the first off inspection.

All parameters are checked as per standard and the job card.

Heat Treatment:

The hardening and tempering process is carried out in fully automatic Continuous heat treatment Plants with logic control.

Following Furnaces are installed in our factory.
  • Continuous Mesh Belt Type Furnace (7 tons/day)
  • Shaker Hearth type Continuous furnace (3.5 tons/ day)
  • Rotary furnace. (6 tons per day )
  • Pit Type Furnace (3 tons per day)

Hardening and tempering temperature and time is set as as Per raw material used, property class and size of the bolt and washer. All the material is oil quenched.
Complete process is continuously monitored with live scanner software with complete temp. Time graph availability.

Finishing:

The surface finishing of the material is done as per customer requirement:
The following parameters are checked in a coating:

  • Coating Thickness by Alco meter
  • Visual defects
  • Uniformity of coating test in case of HDG.
  • Salt Spray test for corrosion resistance
  • Adhesion Test

Major Surface Coatings facilities:

Hot Dip Galvanizing, Electro-galvanizing (Cr3- White, yellow, Green, Black Passivation), PTFE Coating, Zinc-Al Flake Coating (Geomet, Dacromet), Zinc Phosphate and Auto Thermal Black

Facilities Available.

  • Fully automatic Zinc Coating line (15 tons per day)
  • Zinc Plating Tank (Up to 3 m Length)
  • Hot Dip Galvanizing Plant (5 Mts./ 12hours)
  • Zinc Phosphate (5 Mts. /12 hours)
  • Black Oxide (5 Mts./ 12 hours)

Packing & Dispatch

After final inspection the material is moved to packing section. 100% visual inspection is again done at the time of packing for any surface discontinuities.

The packing of material is carried out in both:

  • Quantity wise
  • Weight Wise

The material is packed in high quality laminated cartoons or HDPE bags as per customer specific requirement. All the cartoons or bags are finally packed in wooden pallet followed by pallet lamination and stripping for the safe and convenient dispatch to our valuable customers.