Latest frequency inverter Tenders | Government frequency inverter Tenders

State Government

CTN :45290096

29 May, 2026 9.77 Lacs

Gurgaon - Haryana

Tender For supply of chemicals required for district laboratory nuh and hiring of analyst and peon on monthly basis for sub division laboratory phesd f.p jhirka - supply of 3 place manifold part(accessory for manifold filtration assembly) used for bacteriological testing (bt) 3 place manifold with ss 316 with ptfe valve make: axiva, glassco, merckmillipore, borosil , supply of inverter tubular type battery 150 ah make: exide, livguard, supply of manifold filtration assembly used for bacteriological testing (bt) branch - 6 place assemblies with high efficiency, high sensitivity and fast filtering speed funnel capacity- minimum 300ml. filth pore size -minimum 20 m funnel material all ss 316 within built ss clamp and ss lid glass or ss316 with external ss clamp and cork capacity 250 ml vacuum flask 2l capacity valve - ptfe base holder stainless steel 316l, autoclavable-121 c (15min.) membrane filter 1 pack (100 no.) as per requirement /0.45 m pack of 100 with all accessories, flask, connectors vacuum pump: air vent filter-hydrophobic ptfe(flow rate should be 19l/min. motor speed -1400 rpm, max vaccum-100 mbar) should be of latest technology and highest quality. make: pall lifesciences, merck millipore, borosil, labotronics, athena, axiva, glassco , supply of patri dish for microbiological testing (total coliform, ecolie)

Central Government And Public Sector

CTN :45255394

09 Jun, 2026 NA

Bangalore - Karnataka

Tender For helical worm gearmotor for long conveyor b shop and stn-4 main outgoing chip conveyors machine chip conveyor to model no-sk 42125-100lp/4 tf of m/s nodes and loads or equivalent 1) acceptable make of gear box-nodes and loads,power build,new allen berry,shanthi gears, sew.2) acceptable make of motor-abb,bharath bijlee,nodes and loads,siemens,crompton greaves,sew ,technical specification: 1) power -2.2 kw, 2) input speed-1460 rpm ,3) output speed-19 rpm ,4) ratio-76.95 ,5) output torque- 894 nm, 6) voltage-230/400 v, 7) frequency-50hz ,8) efficiency class-ie3 ,9) enclosure-ip55, 10)type of housing-foot mount, 11) mounting position-m4(should be capable for horizontal and vertical mounting without any modification) ,12) output shaft-solid keyed shaft,13) output shaft diameter-60 x 120mm. 14) motor cooling -tefc 15) service factor-2.5. 16) the motor used shall be without any modification either on shaft/ flange.17) mounting hole to hole -180mm x 200 mm.18) mounting hole dia-22mm.19) warranty: 18 months from the date of supply or 12 months from the date of commissioning. 20) motor inverter speed range standard line powered - inverter capable(motor should be designed to work with vfd in the range 25hz to 65hz. 21) base weight-125 kg maximum. 22) the overall length shall not exceed 700 mm. 23)gear motor should be unicase(housing (casing) is made as a single, integral unit) type. special conditions 1)the offerer shall furnish technical specification catalogue/data sheet duly indicating dimensional details, torque value and motor details during tender participation and along with material supply.2) only authorized dealers or manufactures of above mentioned makes shall participate in tender.3) drawing of modelno- sk 42125-100lp/4 tf is attached for reference only. [ warranty period: 18 months after the date of delivery ] ]

Central Government And Public Sector

CTN :45267072

12 Jun, 2026 NA

Bangalore - Karnataka

Tender For helical inline gear motor to the model no. sk973.1-112mp/4 tf of make m/s nord or substantially equivalent with following features: input speed(rpm): 1440; output speed(rpm): 15; gear ratio: 94.96; power (kw): 4; service factor: 1.3; output torque: 2519 nm; overhung load: 23.6 kn; axial load: 22 kn; motor inverter speed range: standard line powered inverter capable; voltage: 400/690 v; frequency: 50 hz; efficiency class: ie3; current 1: 7.85 a; current 2: 4.53 a; cosinus: 0.83; motor duty: s1 - continuous; enclosure: ip55; insulation class: f; mounting pos - m1; housing material: cast iron housing; type of housing: foot mount; output shaft: solid keyed shaft; output shaft (dia x length): 60x120 mm; output shaft material: standard; gearbox breather options: auto vent; gearbox sealing options: fkm seals; bearing design: standard bearings; motor cooling: tefc - totally enclosed fan cooled; motor thermal protection: thermistor; motor option: fluoro rubber motor seals. note: - i. material of construction: fabricated steel housing (stress relieved) ii. all gears shall be manufactured from steel forgings or rolled bar made from steel 17cr ni mo6/18cr ni mo6 (case hardening steel). iii. all gears shall be case hardened to 58-62 hrc and profile ground. iv. output shaft shall be of en 9 material normalized to 201 bhn (min) v. bearing used shall be rollingelement type of make skf/ntn/timken/fag only. special conditions: a) only authorised license manufacturers of gear boxes or their authorised dealers shall participate in the tender and must furnish an authorizedlicense or dealer certificate at the time of technical scrutiny. b) mtc and heat treatment shall be submitted along with the supply. c)warranty: the material shall have a warranty of 12 months from the date of installation or 18 months from the date of supply, whichever is earlier d)above specified materials are the minimum required standard to be considered while desiging the gear motor. [ warranty period: 18 months after the date of delivery ] ]

Central Government/Public Sector

CTN :45264914

30 May, 2026 NA

Bhopal - Madhya Pradesh

Tender For supply of 2.2 kw ac crane drive , 5.5 kw ac crane drive , 11.0 kw ac crane drive , 22.0 kw ac crane drive , 37.0 kw ac crane drive , 55.0 kw ac crane drive , 75.0 kw ac crane drive 3 phase, digital ac crane drive 2.2 kw, ac drive should be suitable for heavy duty operation of 2.2 kw. offered ac drive should be suitable for crane-hoist operation. if, separate software required for crane application, it must be clubbed with supply of material. ac input voltage: 380 to 480v ac 10%, 3 phase, 3 wire, 50 hz; mode of control: bi-directional fully controlled 3-phase ac; speed regulation: 1% of base speed; braking: suitable dynamic braking resistance and chopper unit (external or in-built); acceleration time: 0.1 to 1000s or better; deacceleration time: 0.1 to 1000s or better; overload: 150%-1min, 200%-3.0s; ambient temperature: 0 to 50 c (derating shall not occur below 50 c. in the event that derating occurs below 50 c, the supplier shall provide a higher-rated drive to match the requirement); rated current at 50 c: min. current should be 5.5 amps at 50 c; high starting torque at low speed: 200% starting torque at 0.3 hz; two analog inputs: two nos. analog inputs having signal voltages of 0 to 10 vdc or 4 to 20 ma (configurable); two analog outputs: two nos. analog outputs having signal voltages of 0 to +/-10 vdc or 4 to 20 ma (configurable); six digital inputs: pnp/npn; one relay output: with short-circuit and overload protection; two digital outputs: with short- circuit and overload protection; brake release signals: outputs braking signals based on inverter operating conditions to prevent cargo bed rollback and overrunning; load adaptive control: when the actual load level is lower than the configured load level, the system can be operated at a ratio-multiplied speed (in terms of the configured frequency), resulting in significantly better efficiency; load ) /bid number : gem/2026/b/7563714 * /dated: 20-05-2026 & & / bid document 1 / 29 frequency), resulting in significantly better efficiency; load limiter: maintains the safety and rescuability of suspended loads by stopping when excessive torque is detected and by allowing operation only in the direction opposite to that in which the excessive load was detected; cooling capacity degradation alarm: detects and displays cooling capacity drop due to cooling fin clogging caused by dust and cooling fan airflow reduction; igbt life expectancy forecasting: estimates the power cycle life expectancy of the main circuit s igbt semiconductor device temperature due to frequent acceleration and deceleration stoppages, and displays the estimate before the design life is reached; protection: it must have all standard protections like stall protection, instantaneous power failure, single phasing, over voltage, under voltage, over current, inverter overload, thermal overload etc; display console: it must have alpha numeric display console for programming of drive, fault display and operating condition; dynamic qr code: it must have dynamic qr code for trouble shooting; tuning facility: it must have auto tuning facility. this must enable perfect matching of motor coupled to load with regards to optimum acceleration time, deceleration time, speed regulation etc; drive programming software: suitable drive programming software along with necessary connecting cable and adapter for connection with laptop and drive should be provided to get online with the offered drive (laptop not in scope); automatic voltage regulation: it must have automatic voltage regulation function to maintain high starting torque even at reduced voltage; regenerative option: it must be capable of regenerative operation; communication protocol: modbus (rtu/serial) or ethernet (tcp/ip); make of drives: fuji- electric/yasakawa/schneider/abb only; suitable dynamic breaking resistance unit of 60% wattage rating of drive, however the value of resistance is to be decided by manufacturer as per their technical manual for crane-ho

CTN :45199196

28 May, 2026 NA

Kharagpur - West Bengal

Tender For supply of 2 ton split air-conditioner of bee 5-star rating, with rated standard cooling capacity of minimum 6100 watt ( 2 ton), with the function of cooling only, with rotary compressor, inverter (variable speed) type, suitable for 230 v ac, 50 hz system, with 100% copper coil, eco friendly refrigerant, anti-freeze thermostat, with thermal protection for blower motor & condenser motor. conforming to bis specification no. is:1391 (part-2) 2023 & isi marked. bee 5-star rating must comply to ministry of power notification no. s.o. 2794(e) dated 16th july, 2024 & s.o. 3984(e) dated 28th august, 2025 or latest with minimumindian seasonal energy efficiency ratio of 5.6 or latest. refrigerant copper pipes (suction & return) of minimum 4-meter length each, nitrile rubber tube with density 55 kg/cubic meter or more, fire performance class 1, rate of burning class v-0, water vapour diffusion resistance factor (%u03bc) more than 12000, service temperature 10 to 105-degree c, surface flame spread class 1 & thickness of minimum ? inch, relevanttest certificates to be submitted. nitrile rubber tube shall be with suitable inner diameter to suit & to wrap the complete length of refrigerant copper pipe and aluminum foil lamination of 0.2 mm thick to cover entire length of the copper refrigerant pipes will be supplied along with each air-conditioner. the supply shall include one pair of outdoor ac machine stand(containing fasteners) and one pair of indoor and outdoor pcbfor each unit. make: any indian is approved make. [ warranty period: 12 months after the date of delivery ] ]

CTN :45091143

28 May, 2026 NA

Kharagpur - West Bengal

Tender For corrigendum : supply of 2 ton split air-conditioner of bee 5-star rating, with rated standard cooling capacity of minimum 6100 watt ( 2 ton), with the function of cooling only, with rotary compressor, inverter (variable speed) type, suitable for 230 v ac, 50 hz system, with 100% copper coil, eco friendly refrigerant, anti-freeze thermostat, with thermal protection for blower motor & condenser motor. conforming to bis specification no. is:1391 (part-2) 2023 & isi marked. bee 5-star rating must comply to ministry of power notification no. s.o. 2794(e) dated 16th july, 2024 & s.o. 3984(e) dated 28th august, 2025 or latest with minimumindian seasonal energy efficiency ratio of 5.6 or latest. refrigerant copper pipes (suction & return) of minimum 4-meter length each, nitrile rubber tube with density 55 kg/cubic meter or more, fire performance class 1, rate of burning class v-0, water vapour diffusion resistance factor (%u03bc) more than 12000, service temperature 10 to 105-degree c, surface flame spread class 1 & thickness of minimum ? inch, relevanttest certificates to be submitted. nitrile rubber tube shall be with suitable inner diameter to suit & to wrap the complete length of refrigerant copper pipe and aluminum foil lamination of 0.2 mm thick to cover entire length of the copper refrigerant pipes will be supplied along with each air-conditioner. the supply shall include one pair of outdoor ac machine stand(containing fasteners) and one pair of indoor and outdoor pcbfor each unit. make: any indian is approved make. [ warranty period: 12 months after the date of delivery ]

Central Government/Public Sector

CTN :45120651

01 Jun, 2026 NA

Kollam - Kerala

Tender For supply, installation and commissioning of heavy duty portable inverter welding machine (igbt based).single phase, mains supply ,v/ph.hz-230v single phase,50hz.input power (max) ,kva-12, output current range a-30-250a,maximum load at 60 % duty cycle a-250a,maximum load at 100% duty cycle a-194a,open circuit voltage v-80v ,display-digital display, efficiency-88. the supply shall include equipment as detailed in the specifications along with theall the accessories which are essential to make the equipment fully operational when connected to power source. detailed description enclosed.warranty period: 30 month(s) from the date of supply [ warranty period: 30 months after the date of delivery ]

Central Government And Public Sector

CTN :45139312

21 May, 2026 NA

Bangalore - Karnataka

Tender For supply of helical inline gear motor to the model no. sk 973.1 - 112mp/4 tf for axle pusher chain conveyor of make m/s nord or substantially equivalent with following features: input speed(rpm): 1440; output speed(rpm): 21; gear ratio: 68.5; power (kw): 4; service factor: 1.8; output torque: 1817 nm; overhung load: 25 kn; axial load: 22 kn; motor inverter speed range: standard line powered inverter capable; voltage: 400/690 v; frequency: 50 hz; efficiency class: ie3; current 1: 7.85 a; current 2: 4.53 a; cosinus: 0.83; motor duty: s1 - continuous; enclosure: ip55; insulation class - f; mounting pos - m1; housing material: cast iron housing; type of housing: foot mount; output shaft: solid keyed shaft; output shaft (dia x length): 60x120mm; output shaft material: standard; gearbox breather options: auto vent; gearbox sealing options:fkm seals; bearing design: standard bearings; motor cooling: tefc - totally enclosed fan cooled; motor thermal protection: thermistor; motor option: fluoro rubber motor seals; height of output shaft center frombottom of base plate: 225 mm; mounting base plate details: minimum plate thickness: 50 mm; 04 holes of 22 mm dia each with square pattern; distance between holes along the shaft: 310 mm; distance between holes perpendicular to shaft: 250 mm; note: - (i) material of construction: fabricated steel housing (stress relieved) (ii) all gears shall be manufactured from steel forgings or rolled bar made from steel 17cr ni mo6/18cr ni mo6 (case hardening steel). (iii) all gears shall be case hardened to 58-62 hrc and profile ground. (iv) output shaft shall be of en 9 material normalized to 201 bhn (min) (v) bearing used shall be rolling element type of make skf/ntn/timken/fag only. special conditions: above specified materials are the minimum required standard to be considered while designing the gear motor. [ warranty period: 18 months after the date of delivery ]

CTN :44901001

22 Apr, 2026 NA

Kharagpur - West Bengal

Tender For supply of split air-conditioner of bee 5-star rating, suitable for cooling capacity for the whole range of 5201 to 6860w (2 ton) with the function of cooling only, with rotary compressor, inverter (variable speed) type, suitable for 230v ac, 50 hz system, with 100% copper coil, eco friendly refrigerant, anti-freeze thermostat, with thermal protection for blower motor & condenser motor. conforming to bis specification no. is:1391 (part-2) 2023. bee 5-star rating must comply to ministry of power notification no. s.o. 3897(e) dated 29th october 2019 for table 3.2(f) with minimum indian seasonal energy efficiency ratio of 5.0 (applicability date extended by notifications no. s.o. 4485(e) dated 10th december, 2020 and no. s.o. 4634(e) dated 10th november, 2021). complying to ministry of power notification no. s.o. 2528(e) dated 8th august 2017 for other requirements. refrigerant copper pipes (suction & return) of minimum 4-meter length each, nitrile rubber tube with density 55 kg/cubic meter or more, fire performance class 1, rate of burning class v-0, water vapour diffusion resistance factor more than 12000, service temperature 10 to 105-degree c, surface flame spread class 1 & thickness of minimum inch, relevant test certificates to be submitted. nitrile rubber tube shall be with suitable inner diameter to suit & to wrap the complete length of refrigerant copper pipe and aluminium foil lamination of 0.2 mm thick to cover entire length of the copper refrigerant pipes, outdoor unit stand and spare pcb circuit will be supplied along with each air-conditioner. any indian is make - blue star ,lloyd, godrej ,carrier ,daikin voltas etc. detailed specifications attached as annexure-a. [ warranty period: 12 months after the date of delivery ]

Central Government And Public Sector

CTN :44901429

05 May, 2026 NA

Bangalore - Karnataka

Tender For corrigendum : supply of helical inline gear motor to the model no. sk 973.1 - 112mp/4 tf for axle pusher chain conveyor of make m/s nord or substantially equivalent with following features: input speed(rpm): 1440; output speed(rpm): 21; gear ratio: 68.5; power (kw): 4; service factor: 1.8; output torque: 1817 nm; overhung load: 25 kn; axial load: 22 kn; motor inverter speed range: standard line powered inverter capable; voltage: 400/690 v; frequency: 50 hz; efficiency class: ie3; current 1: 7.85 a; current 2: 4.53 a; cosinus: 0.83; motor duty: s1 - continuous; enclosure: ip55; insulation class - f; mounting pos - m1; housing material: cast iron housing; type of housing: foot mount; output shaft: solid keyed shaft; output shaft (dia x length): 60x120mm; output shaft material: standard; gearbox breather options: auto vent; gearbox sealing options:fkm seals; bearing design: standard bearings; motor cooling: tefc - totally enclosed fan cooled; motor thermal protection: thermistor; motor option: fluoro rubber motor seals; height of output shaft center frombottom of base plate: 225 mm; mounting base plate details: minimum plate thickness: 50 mm; 04 holes of 22 mm dia each with square pattern; distance between holes along the shaft: 310 mm; distance between holes perpendicular to shaft: 250 mm; note: - (i) material of construction: fabricated steel housing (stress relieved) (ii) all gears shall be manufactured from steel forgings or rolled bar made from steel 17cr ni mo6/18cr ni mo6 (case hardening steel). (iii) all gears shall be case hardened to 58-62 hrc and profile ground. (iv) output shaft shall be of en 9 material normalized to 201 bhn (min) (v) bearing used shall be rolling element type of make skf/ntn/timken/fag only. special conditions: above specified materials are the minimum required standard to be considered while designing the gear motor. [ warranty period: 18 months after the date of delivery ]

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