Design Service

Please click on one of the links below and make an enquiry for your specific need.

At 4B, our basis has always been engineering and our expertise in providing solutions for our customers in the bulk handling industry. Rather than just selling products off the shelf, our engineers thrive on the challenge of finding solutions specific to our customers' needs.

Whether you need help with the design or upgrade of a bucket elevator or conveyor - or just need a solution for protecting your equipment from the dangers related to explosive environments, our engineers can help.

Elevator & chain conveyor design service
Elevator & chain conveyor design service image
Hazard monitoring design service
Hazard monitoring design service image
Maintenance & commissioning services
Maintenance & commissioning services image


At 4B, we offer an annual maintenance service, which is available for both electrical and mechanical components.


  • All the parts of the system / installation are checked to be in good working order.
  • Any defects are highlighted and an action list is sent our along with the full inspection report.
  • (The services are the same as in our "Commissioning Service"- just on an annual basis.)


  • Machines are visually inspected for the component and structural wear signs.
  • Full datasheet is created with all the key dimensions, list of spare parts, type of drive and gearbox, bearings, etc.
  • Recommendations can be made of how to improve performance, reduce spares stock and decrease power consumption.
  • Action list is created, which highlights most urgent changes and improvements.

Onsite Commissioning

At 4B we do not only sell all the key elevator components, but also have the capability of full-system and installation commissioning. This service ensures that all equipment was fitted and installed as per the manufacturer’s and industry’s best practice standards. Fully commissioned installation provides reassurance to the end user.

After 4B products have been installed by a qualified electrician, 4B's commissioning service is available to inspect and certify proper installation of our sensors and control units prior to operation. A brief overview of the service is listed below.

Warning: 4B recommends that all sensors are wired to provide automatic shutdown of monitored equipment, when a hazardous condition is detected.

  • All rigid and flexible conduits inspected for: cracks, breaks, tightness of connections, and suitability for purpose. 
  • All wiring inspected for: ground faults, shorts, suitability for purpose. 
  • All sensors and controls inspected for correct installation and wiring 
  • All sensors and controls inspected for any signs of damage, and tested to insure proper working order. 
  • Detailed written inspection and testing report with any recommendations given to client. 
  • Sensors are removed from their location to ensure that they were centered on the belt. 
  • Each Touchswitch is physically inspected for damage and wear. 
  • Touchswitch LED and alarm contacts are tested. 
  • Wire terminations are inspected. 
  • All sensors are inspected and resistance is checked. 
  • Sensors are also checked for correct identification, location and sensor type. 
  • Sensors are checked for proper temperature alarm and shutdown trip points using 4B’s ADB Tester.
  • Wire terminations are inspected.
  • All speed switches are checked for proper installation. 
  • Sensors are checked for proper underspeed alarm and shutdown set points using 4B's SpeedMaster™. 
  • Wire terminations are inspected.