Transcript Key Machining Jobs Executed So Far

JNJ MACHINES PVT. LTD.
www.jnjmachines.com
“KEY MACHINING JOBS EXECUTED SO FAR”
GASSIFIER SHELL WEP MACHINING
CTQ: Gassifier main shell cutout machining. Weight 115MT. Complete profile made
with 3D programming.
RUNNER HUB OF KAPLAN TURBINE
CTQ: Machining of concentric bores with in 50 micron.
Also indexing of openings in 60 degree. For 50 MW hydro power plant.
ASH-LOCK
CTQ: Very long cycle time job where the line boring concept is used and maximum length
of bore is 1.9mtr. All bores concentricity maintained with in 100 micron w.r.t to each
other. Customer inspection is through FARO. IT has boring from Dia 18 to Dia 560
CONDENSER TUBE PLATE DRILLING FOR BHEL BHOPAL
CTQ: Condenser tube plate 40 mm MS + 8 mm SS cladding, dia 28.85 mm hole which
requires Ra 3.2 finish, 11484 holes. For 770 MW super critical nuclear power plant.
TILE PLATE FOR ISRO – MARS MISSION
CTQ: 10mm thin aluminum sheet where after machining of 400 pockets the final
thickness left was 1mm. Also we made some 1500 holes of M1 to M2.5 . Complete plate
parallelism was in 20 micron.
TURNING OF SHELL OF PETROBAS
CTQ: Maximum dia job that we have done in VTL- 5400mm. Made both side lip and
NUB.
TUBE SHEET
CTQ: Flatness required with in 50 micron all over.
DC Gasket for ammonia convertor
CTQ: Very thin section requires delicate handling and machining.
For this section concentricity required was with in 50 micron.
DOVE MACHINING FOR CALTIM
CTQ: Complete spherical machining, we also had to ensure that thickness to dome
should not go below 120 mm at any point.
CHANNEL HEADER
CTQ: Dia 1100 Acme thread profile generation using helical programming
ROTOR GUIDE PILLAR FOR 660 MW ROTOR ASSEMBLY
CTQ: small cross section where the parallelism required with in 20 micron.
3D PROFILE WELD EDGE PREPARATION FOR MHI BOILER
CTQ:
SEAL GROOVE MACHINING FOR DOOR OF FUSION REACTOR
SEGMENT PLATE
SS 316 L 14meter Length with 14meter O.D 60⁰ Segment Plate Machining for
Nuclear Fusion Cryostat
MBA Bearing Casing for FD, ID & PA Fan
PIPE WEP
CTQ: Pipe WEP machining with 3D programming.
3D Pipe machining
SKIRT PILING CYLINDER
CTQ: We did 5 mtr long bore of dia 1800. Concentricity in 5mtr was with in 0.5mm.
COMPLETE VIEW OF HBM MACHINE
INSIDE VIEW OF VTL MACHINE
PLUMMER BLOCK ASSEMBLY COVERS FOR JSPL RAIPUR
CTQ: All fittings are push fits and assembly with Plummer block is in the scope of JNJ
PLUMMER BLOCK ASSEMBLY PLUMMER BLOCKS FOR JSPL
RAIPUR
CTQ: All fittings are push fits and assembly with Plummer block is in the scope of JNJ
PARTS FOR MAIN BEARING ASSEMBLY OF FD, ID, PA FAN
CTQ:
Parts For Main Bearing Assembly of FD, ID, PA Fan
REPAIR OF CASING FOR
RELIANCE
CTQ: It was first repair kind of job
where all four Pad after machining
maintained with in 10 micron.
GAS TURBINE CASING
FOR 220 MW POWER
PLANT
CTQ: Modification of GE design
casing to enhance the NTPC power
plant capacity. All modification
required with in 1thou.
GRINDING TABLE FOR
COAL PULVERISER
CTQ: Grinding table for 32R VRM.
MHI design.
CONTACT US
Site Address: 762, GIDC Ichhapore,
Hazira,
Surat - 394510
E-mail:
[email protected]
Contact No.: +91-261-2840530