Scheduled periodic maintenance works substantially contribute to minimisation of plant downtime.

We perform preventive maintenance on electrical and mechanical components as well as on control systems. 

We plan these preventive maintenance works together with our clients.

Preventive maintenance works on valveszoom

Maintenance services

  • Planning of maintenance works (risk analysis, minimisation of downtime)
  • Planning based on operating data and operational scenarios
  • Performance of maintenance with checklists and according to SOPs
  • Documentation of maintenance services
  • Standardised and documented handover of the plant upon completion of maintenance


Even on short notice, we perform calibration jobs after scheduled maintenance or servicing of your plant. 


  1. Experienced specialists
  2. Independent performance of calibration jobs
  3. Complete and seamless documentation
Calibration jobs within the plantzoom

Calibration jobs

  • Pressure
  • Temperature
  • Humidity
  • Flow rate
  • Turbidity measurement
  • Rotation speed rev/min
  • Conductivity
  • pH value
  • Weight


  • Provision of lists of consumables and spare parts for JAG products and plants
  • Compilation of packages of consumables or spare parts
  • Spare parts sales and delivery
  • Installation of spare parts on site
  • Repair of replaced parts (where possible and practicable)
Example: Spare Parts List for JAG PSC
Example: Spare Parts List for JAG PSC
Example: Spare Parts List for JAG PAD
Example: Spare Parts List for JAG PAD


We carry out inspections periodically or as required (e.g. before campaigns).

Inspections can be carried out without interrupting production or reducing production capacity.


  1. Basis for planning preventive maintenance
  2. Early detection of wear and possible faults
  3. Fewer unscheduled production outages


We overhaul and repair mechanical components and products on site or in our own workshop.

In addition to our own JAG products, we also repair third-party mechanical components.

We use our own Electronics Laboratory to repair JAG control system components of all generations when economically viable.

Repair of a rotary valve in the workshopzoom

Our repair services include:

  • Function tests
  • Alignment and calibration
  • Test protocols
  • Manufacturer certificates for certified consumables and spare parts


  1. High reliability
  2. Extended service life
  3. 100% traceability

JAG Jakob Ltd
Process Technology
Industriestrasse 20
CH-2555 Brügg

T +41 (0)32 374 30 30

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Leader in process technology. Engineering and construction of turnkey process plant for the food, pharmaceutical and biotech industries. Plant engineering, basic engineering, plant construction and process automation are all part of our range of services, as too is the implementation of process control technology. Our automation solution and process control systems (MES, SCADA, PLC) are made to measure for the process industry.