Government Polytechnic College

Government Polytechnic College has published Tender for Purchase Of Lab Equipments For Mech Dept , Lab Equipments For Mech Dept , Dc Motor (D040) Specifications: • Type: Dc Shunt Motor (Dismantling Model) • Power: Minimum 0.5 Hp • Voltage: 220 V Dc • Speed: 1500 Rpm • Poles: 4 Pole• Construction: • Laminated Stator • Salient Poles • Accessible Armature Features: • Cut Section / Open Type • Suitable For Dismantling And Reassembly) . , Hydraulic Cylinder(D041) Specifications: Bore Diameter: 50 Mm ● Stroke Length: 250 Mm ● Working Pressure: 160 Bar ● Cylinder Tube: Honed Steel ● Piston Rod: Hard Chrome Plated ● Seals: Standard Industrial Seals ● End Caps: Steel Supply: ● Mounted On Training Base ● Suitable For Dismantling And Inspection , Hydraulic Operated Directional Control Valves (Dcv) (D042) Specifications: ● Type: Manual Spool Type Dc Valve ● Configuration: 4/2 Way ● Size: Ng06 (Cetop 3) ● Rated Pressure: 210 Bar ● Flow Capacity: 20-40 Lpm ● Body: Hardened Steel / Cast Steel ● Spool: Ground And Hardened ● Ports: Clearly Marked (P, A, B, T) Supply: ● Mounted On Training Plate ● Suitable For Dismantling And Study , Bearing With Shaft Assembly(D043) Speicifications: ● Type: Dismantling And Assembly Teaching Unit ● Shaft Diameter: 30 Mm ● Shaft Material: En8 Steel ● Bearings: Deep Groove Ball Bearing (6205 / 6206) ● Housing: Cast Iron ● Locking Arrangement: ● Circlips ● Lock Nuts ● End Covers Mounting: ● Bench-Mounted / Frame Mounted Unit , Coupling Unit Using Driving And Driven Shafts Using Plummer Block Bearing Unit (D044) Speicfications: ● The Plummer Block Housing Material: Cast Iron (Grade Fg 200 Or Equivalent). Type: Sng Or Snl Series (Split-Type Housing). Sealing: Felt Seals Or V-Ring Seals (To Demonstrate Lubrication Retention). Lubrication: Provided With A Grease Nipple At The Top Center For Manual Lubrication Practice. ● The Bearing Type: Self-Aligning Ball Bearing (1200 Series) Or Spherical Roller Bearing (22200 Series). Bore Diameter: Standard 25Mm Or 30 Mm. ● Shafting And Coupling Shaft Material: Ground Carbon Steel (En8 Or En9) For High Surface Finish. ● Coupling Type: Flexible Coupling: To Demonstrate The Bearings Ability To Handle Slight Misalignment. ● Rigid Flange Coupling: To Demonstrate Traditional Direct Connection. ● Driving/Driven Setup: One Shaft Connected To A Small Electric Motor (Driving) And The Other To A Brake Drum Or Load (Driven). , (A).Sliding Mesh Gear Box For Dismantling And Assembling (B) Constant Mesh Gear Box Cut Section (D045) Specifications: (A) ● Max Transmitted Power 1To1.5Hp, ● Torque Capacity- 40 To 200Nm, ● Number .Of Speed 3 To 6, ● Gear Module 1.5 To 2, ● Sliding Mesh Gearbox ● Gearbox Type- Sliding Mesh Forward Gears- 3 Reverse -Yes ● Gear Material -Alloy Steel ● Lubrication- Splash / Oil ● Gear Teeth- Spur ● Typical Gear Ratios- 3.2:1 / 2.0:1 /1.3:1 ● Input Speed- 0-1800 Rpm ● Housing Material- Cast Iron (B) ● Constant Mesh Gearbox (Cut Section) ● Gearbox Type :Constant Mesh ● Forward Gears :4 ● Gear Teeth -Helical / Spur ● Dog Clutch Type- Sliding ● Lubrication -Oil Sae 80W90 ● Housing- Cut Section ● Material -Hardened Alloy Steel Educational Features- Labeled Parts.. Last date of submission for this tender is 2026-09-04. This is a Laboratory Equipment tender in Tuticorin, Tamil Nadu