Calculator Manufacturing Unit
This project profile outlines the establishment of a manufacturing unit for portable electronic calculators, including pocket and desktop models. The unit utilizes injection molding for plastic casings and surface-mount technology for PCB assembly to produce reliable calculation devices for offices, schools, and retail establishments.
- 9 jobs
- 20 KW power
- ₹19L project cost
Project cost & finance
Cost of Project
figures in ₹ Lakhs
| Plant & Machinery | 12.5 |
| Furniture & Fixtures | 0.5 |
| Other Misc. Assets | 1 |
| Working Capital | 5 |
| Total | 19 |
|---|
Means of Finance
figures in ₹ Lakhs
| Own Contribution | 1.9 |
| Term Loan | 12.6 |
| Working Capital Loan | 4.5 |
| Total | 19 |
|---|
Raw materials & machinery
- Raw Material Plastic GranulesBuy on Amazon ↗
PP or PVC granules used for injection molding of calculator cases and buttons.
- Raw Material Controller ICBuy on Amazon ↗
Integrated circuits for processing calculation logic.
- Raw Material Memory ChipsBuy on Amazon ↗
Components used to store calculator data and previous outputs.
- Raw Material LCD DisplayBuy on Amazon ↗
Liquid crystal display used to output numbers and results.
- Raw Material Customized Circuit BoardBuy on Amazon ↗
Bare PCB for surface-mount component placement.
- Raw Material Silicone Rubber KeypadBuy on Amazon ↗
Keypad membrane with conductive contacts for button presses.
- Raw Material BatteryBuy on Amazon ↗
Lithium cell or AA battery for power source.
- Machinery Injection Molding MachineBuy on Amazon ↗
Machine to melt and inject plastic granules into molds for producing calculator casings and keys.
- Machinery Solder Paste PrinterBuy on Amazon ↗
Machine used to apply solder paste onto PCBs through a stencil.
- Machinery Pick and Place MachineBuy on Amazon ↗
High-speed machine used to accurately place surface-mount components on PCBs.
- Machinery Reflow MachineBuy on Amazon ↗
Furnace used to heat solder paste and attach electrical components to PCB contact pads.
- Machinery SPI MachineBuy on Amazon ↗
Solder Paste Inspection machine to verify solder paste volume and thickness.
- Machinery AOI MachineBuy on Amazon ↗
Automated Optical Inspection machine for checking component placement and solder joint quality.
- Machinery Temperature-Controlled Soldering StationBuy on Amazon ↗
Hand tool station used for manual soldering tasks such as battery contacts.
- Machinery Pad Printing MachineBuy on Amazon ↗
Machine used to print numbers, signs, and logos on plastic keys and casings.
Manufacturing process
- Raw material procurement and sorting of plastic granules, PCBs, and electronic components in a clean environment.
- Injection molding of plastic granules to form rigid external enclosures, cases, and keys.
- PCB assembly involving solder paste application, component placement using pick and place machines, reflow soldering, and automated optical inspection (AOI).
- Final product assembly where molded plastic parts, rubber keypads, LCDs, and assembled PCBs are integrated and screwed together with battery connections.
- Comprehensive testing including endurance, durability, response time, accuracy, and functional ICT tests.
Market
Electronic calculators are extensively used in offices, banks, shops, departmental stores, educational bodies, and research institutions.