How to choose a diesel generator for a workshop or site

A short buyer guide for power sizing, fuel and Motorsaazan genset engines vs portable units — for Jooybar industrial customers.

Why the right genset matters

On construction sites, farms and workshops, wrong sizing means higher fuel burn, early wear and downtime.

1. Size the load

  • List every load and starting amps (motors spike on start)
  • Separate continuous vs peak demand
  • For mobile water pumps and compressors, keep 20–30% headroom

2. Complete genset vs genset engine?

Complete diesel genset (canopy/open): ready to run on site or for rental.

Motorsaazan genset engines (e.g. 4.248, MTI440 series): when you build a custom set with your own frame and alternator.

Portable sets (e.g. Robin RGD5000): lighter duty, mobile jobs, lower continuous hours.

3. Fuel and duty cycle

  • Long daily hours → Motorsaazan diesel with scheduled service
  • Frequent moves → lighter portable units
  • Gas engines only with a stable gas supply

4. Warranty and after-sales

Jooybar is an authorized Motorsaazan partner in Fars and Bushehr. Confirm model, warranty and spare parts before you buy.

Checklist

  1. Measure the load carefully
  2. Pick complete set / genset engine / portable
  3. Request a quote from the shop catalog

Use the contact form on the site for technical advice.