PRECISION CHILD COMPONENTS
Railway Signal Relay Child Parts
Machined pins, turned spacer bushes, stamped flat washers, electroplated mounting brackets, and wound coils supplied as individual child parts for railway signal relay maintenance and OEM assemblies.
APPLICABLE REQUIREMENT: Purchaser-approved drawing and applicable RDSO or Indian Railway specification
QUALITY MANAGEMENT: Manufactured under a quality management system certified to ISO 9001:2015 (review certificate)
INSPECTION: Dimensions, threads, and burrs checked against drawings
PRODUCTION: Manufactured in-house using CNC, Traub automatic lathe, and power presses
DETAILED BREAKDOWN
Manufactured Child Parts and Manufacturing Stations
All five child parts are produced, finished, and inspected within our Pithampur facility.
| Component | Engineering Function | In-House Machine / Process | Inspection Checks |
|---|---|---|---|
| Armature Pin | Threaded pivot pin providing smooth mechanical pivoting action for the relay armature. | CNC turning and Traub automatic lathe | Threads, shank diameter, and concentricity measured against engineering drawing. |
| Spacer Bush | Maintains exact calibrated clearance between structural relay frame plates and contact banks. | Traub automatic lathe and CNC turning | Internal diameter, outer diameter, length, and perpendicularity. |
| Flat Washer | Distributes clamping load uniformly across structural fasteners to protect mounting faces. | Press machines (10 to 75 Ton) | Inner and outer diameter, thickness, and deburring inspection. |
| Mounting Bracket | Rigid metal mounting frame supporting the entire relay mechanism with gold-yellow finish. | Press blanking, forming, and in-house electroplating | Hole centres, bend angles, and electroplated finish thickness. |
| Electromagnetic Coil | Electromagnetic actuation component generating the magnetic field to operate relay contacts. | Precision coil winding, vacuum annealing furnace stress relief, and resistance testing | Coil resistance (ohms), insulation resistance, and dimension check. |