Tender For corrigendum : supply, installation and commissioning of 1 hp induction helical inline gear motor with electromagneticbrake for motorization of rolling shutter of electrically operated gear type rolling shutter size: 10 x 10 feet with 75mm lath strips 5 nos., side bracket 2 nos. 750 kg capacity copper coil motor voltage-220v or 230v, phase: single phase, power: 370w to 550w approximately 0.5 to 1 hp, ip rating: ip44/ip45. indicating protection against dust and splashing water with electromagneticbrake for the automation ofrolling shutter including push button control switch, lever for manual operation, limit switch gear & manual handle lever. make: maxwell/gandhi automations/autozon or its equivalent. [ warranty period: 12 months after the date of delivery ] ]
Tender For supply of air brake direct on-line starter with 2 sets of 3 pole contactor, each set control separately by 415v, 50 hz, ac contactor coils. detail follows as : 01 set of contactor coil is to be controlled by the forward direction of rotation through an inching type push button and the other set through another inching button to control the reverse direction of 5 hp, 3 phase, 50hz, 415 volts, ac motor. there must be electrical interlocking contact to prevent both sets of contactors to close simultaneously. each of above push buttons should have one normally closed auxiliary contacts and one stop push button are required. the starter shall be complete with over load, shall be wired and shall be provided with power plug and socket with locking arrangement as shown in schematic diagram drg. no. 1736/23 and 1737/23,alt.1 mat. specn is : 8544 (part-1), is:13947-4-sec- 1/1993. each starter is to be provided with 02 nos. power plug and socket and 2(two) nos. control plug and socket. maximum dimension 280 mm(b) x 360 mm(l) x 162 mm(t). the starters are as per is :13947-4-sec -1, 1993. make :bch or siemens or havells or jeevan or schneider or l&t. [ warranty period: 30 months after the date of delivery ] ]
Tender For wire rope hoist of 2t capacity confirming to is-807,3938 with hoist carrier for ct movement to suit 150 mm rail width as per the following specification. equipment : electric wire rope hoist; capacity : 2000 kgs ; duty & class : class iv heavy duty; height of lift : 5.0 mtrs; rail size : 150 mm width, 450 mm height ; hoist head room : 900 mm ; hoist speed : 3 mpm; ct speed : 12 mpm; hoist motor : squirrel cage induction motor 5 hp with brake , tefc sq. cage induction motor 3.7kw / 5hp , 4 pole , class f insulation , 415v , 3 ph , flange mounted , frame size 112m with dc operated electromagneticbrake of minimum braking capacity of 5 kgm, continously rated; ct motor and brake specifications :squirrel cage induction motor power : 0.37 kw , pole : 4, efficiency : ie3 , frame : 71m , mounting : b5 flange , brake : electromagnetic disc type spring loaded ac fail safe brake of min torque : 0.6kg.m; voltage : 415v , phase : 3 phase , compressed spring length : 40 mm , air gap : 0.5 mm; hoist & ct gearbox : helical / spur gear combination. all gears inside the gearbox shall be of en-24 material with hardness of 40-45 hrc. mtc and htc from nabl accredited lab should accompany the supply. wire rope : round strand steel wire rope conforming to is 2266 latest and is 6594 latest size : 10mm or 12mm , 4/1 falls construction : 6 x 36 . drum : seamless pipe of suitable dia & shell thickness to accommodate wire rope single layer as per is-2062; hook : forged heavy duty single shank typeplain hook as per is-3815, 360 swivel type with spring loaded safety latch. control panel :consists of mcb, olar, fuse, etc. note: (a) test certificate for hook shall accompany the supply (b) make of bearings: skf/ntn/fag/timken only. (c)the firm shall furnish inspection certificate from manufacturers or their authorised testing agents preferably incorporating the details of traceability of the bearing. (d) all gears inside the gearbox shall be of en-24 material with hardness of 40-45 hrc. mtc and htc from nabl accredited lab should accompany the supply (e) make of motors: ngef / abb / lhp / cg / hem /bharat bijlee only; (f) make of electricals: siemens/ge/alstom/l & t/abb only ;control voltage: 110v ;supply voltage: 400/440v, 3 phase 50 cycles. (g) guarantee: 12 months from the date of commissioning or 18 months from the date of supply, whichever is earlier. [ warranty period: 18 months after the date of delivery ]