Execution

We specialise in design of turnkey process lines.

Sj Construction delivers turnkey systems – from the design stage to servicing our completed investments. Thanks to an individual approach to the Customer’s needs, we are able to execute each, even the most non-standard order. As the general contractor, we are present at each stage of order execution. Each investment stage is fully controlled by a project manager. Our employees are experts in their field. They will be happy to help and share their experience at each project stage.

All works and decisions are monitored, which required us to develop comprehensive supervision tools. This contributed to reducing costs and saving time so that works are delivered without delays and in line with specific assumptions. We do our best to ensure top quality services, hence we only trust experienced and reliable suppliers, while our employees undergo regular industry-specific training.

We offer comprehensive solutions

We offer the following services and products:

Gas torches

Technical Specifications:

  • Medium: biogaz
  • Material: 304L/316L
  • Throughput: up to 1000 m3 / h
  • Working pressure: 20 – 200 mbar
  • Equipment:
    – Ignition electrodes
    – Thermocouple or UV detection
    – Flame temperature sensors
    – Flame arrestor
    – Manual shut-off valve
    – Automatic main valve
    – Power and control cabinet

Biogas treatment plants

Technical Specifications:

  • Medium: biogaz
  • Material: 304L/316L
  • Throughput: up to 500 m3 / h
  • Working pressure: 20 – 300 mbar
  • Equipment:
    – Biogas drying module
    – Carbon filter
    – Blower
    – Biogas analyzer
    – Biogas flow meter
    – Measuring apparatus

Heat distribution

Technical Specifications:

  • Material: P235GH
  • Pressure: up to 6 bar
  • Equipment:
    – Circulation pumps
    – Expansion vessels
    – Plate heat exchangers
    – Measuring apparatus

Pump station collectors

Technical Specifications:

  • Material: 304L
  • Pressure: up to 10 bar
  • Equipment:
    – Pumps
    – Chopper
    – Flow meter
    – Measuring apparatus

Vertical buffer

Technical Specifications:

  • Volume: up to 40 m3
  • Tank diameter: up to ⌀3000
  • Material: 304L / 316L

  • Medium: liquid / semi-liquid substrate

  • Insulation: optional
  • Stirrer: optional

Buffer horizontal

Technical Specifications:

  • Volume: up to 40 m3
  • Tank diameter: up to ⌀3000
  • Material: 304L / 316L

  • Medium: liquid substrate

  • Insulation: optional
  • Stirrer: optional

P-line tube heat exchangers (single)

Technical Specifications:

  • Installation diameter: DN80… DN250
  • Material: 304L / 316L
  • Medium:
    – outer chamber – water
    – inner chamber – water / substrate

  • Insulation: optional

  • Equipment: compensators

P-line tube heat exchangers (segmented)

Technical Specifications:

  • Number of segments: 4… 16

  • Installation diameter: DN100 / DN125

  • Material: 304L / 316L
  • Medium:
    – outer chamber – water
    – inner chamber – water / substrate
  • Insulation: mineral wool
  • Equipment: compensators

Condensers

Technical Specifications:

  • Material: S235 / 304L / 316L

  • Number of fans: 1-4
  • Efficiency: selected individually

Receiving tanks of the “mogul” type

Technical Specifications:

  • Volume: up to 35 m3 net
  • Material: 304L/316L
  • Screw diameter: up to ⌀600
  • Medium: solid waste

Pasteurizers / Hygienizators made of stainless steel

Technical Specifications:

  • Volume: up to 12 m3
  • Material: 304L/316L

  • Insulation: mineral wool

  • Equipment:
    – agitator
    – heating system (pillow plate)
    – temperature / pressure sensors
    – inspection hatch
    – process connectors
    – test connectors

Screw conveyors

Technical Specifications:

  • Material: 304L/316L

  • Type of transport material: loose materials and fine pieces

  • Transport element: auger
  • Screw diameter: max 6000 mm
  • Screw rotation speed: according to customer’s request
  • Drive screw power: max 7,5 kW

  • Transport direction: horizontally, at an angle

Belt conveyors

Technical Specifications:

  • Type of transport material: loose materials, pieces, cardboard packaging, boxes, bags
  • Types of tapes: solid, modular
  • Width: as requested by the customer
  • Length: as requested by the customer
  • Belt speed: according to customer’s request

  • Drive motor power: max 5.5 kW

  • Transport direction: horizontally, in a curve, at an angle

Shredders

Technical Specifications:

  • Body material: S235/304L
  • Number of cutting shafts: 2 pcs
  • Cutting shaft length: 400 … 1000 mm
  • Backfill dimensions: individually selected
  • Outer diameter of the cutter: 150 … 400 mm
  • Efficiency: selected individually

Mobile liquid waste pasteurization stations

Technical Specifications:

  • Pasteurization modules series: 12,5 m3; 16 m3
  • Number of pasteurization modules per one pumping station: 1-4 szt.
  • Medium: liquid biodegradable waste
  • Pasteurization cycle: 8h
  • Tank material: 304L
  • Frame material: S235
  • Efficiency of one module:
    – Series 12,5m3 – 12,5m3/cycle
    – Series 16m3 – 16m3/cycle

We offer:

  • Supporting structures of halls
  • Support structures for devices
  • Technical stairs
  • Technical ladders
  • Stair steps
  • Railings and railings

Stainless steel devices for individual orders

We make various types of stainless steel devices according to individual design and customer’s wishes.