Industrial services and plant engineering: cleaning, tank cleaning, scaffolding, assembly, insulation and turnaround management.
Johann Rohrer GmbH (Rohrer Group)
New on Amplifa
About the Rohrer Group
The Rohrer Group is a family-owned, 100% privately held provider of technical industrial services headquartered in Niklasdorf (Austria) with a central office in Jockgrim (Germany). Founded in 1975, the service portfolio includes industrial cleaning (including high-pressure water, laser cleaning, dry ice blasting), tank cleaning and tank service with no-men-entry and turbomix methods, oil sludge processing, scaffolding, assembly work and plant shutdowns, turnaround management, technical insulation, piping and steel construction, as well as plant engineering including engineering and welding technology. In its own plant engineering division, the company manufactures plant components, vessels, heat exchangers, pipework and small-scale plants – from prototype to small-series production of special components, also in Incoloy, Hastelloy and Duplex. The Group is represented with 45 operations in Europe and the Middle East, including locations at refineries and chemical sites such as Shell Godorf and BASF Ludwigshafen. Customers come from the chemical, petrochemical, oil & gas, power plant and process industries.
- Site
- Niklasdorf
- Processes
- Industrial cleaning, Laser cleaning, High-pressure water cleaning, Heat exchanger cleaning (semi-automatic internal and external cleaning), Column/vessel cleaning, Pipeline/sewer cleaning, Abrasive/water jet cutting, Dry ice blasting / CO2 blasting
- Materials
- Incoloy, Hastelloy, Duplex, Aluminium (aluminium structures), Stainless steel, Steel, Aluminium
- Certificates
- ISO 9001, ISO 14001, SCC**, SCCP Petrochemicals, OHSAS 18001, SIR (Foundation for Industrial Cleaning), Efb certified waste management company, Certified company under WHG §19, ISO 45001, EN 1090
- Founded
- 1975
- Industries
- Chemical industry, Petrochemicals / refineries, Oil & Gas / offshore, Power plants, Process industry
- 01
Engineering (design, static calculations, fabrication drawings)
- 02
Cutting/laser cutting
- 03
Machining (turning, milling, sawing)
- 04
Sheet metal working (shearing, bending, rolling)
- 05
Welding (MAG, TIG, manual arc, orbital)
- 06
Non-destructive testing
- 07
Assembly / industrial installation
- 08
Turnaround / shutdown management
- 09
Industrial cleaning and tank cleaning
Materials and Processes
Steel
Used in steel construction and plant engineering for structures and plant components.
Stainless steel
Stainless steel constructions and corrosion protection applications in plant and steel construction.
Duplex
Duplex materials for demanding plant components in the process industry.
Aluminium
Processing in aluminium structures of steel construction.
Incoloy
High-alloy nickel-based alloy for special components in plant engineering.
Hastelloy
Corrosion-resistant special alloy for critical plant parts.
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Industrial cleaningSurface | – | – | – | – | – |
| Laser cleaningSurface | – | – | – | – | – |
| High-pressure water cleaningSurface | – | – | – | – | – |
| Heat exchanger cleaning (semi-automatic internal and external cleaning)Surface | – | – | – | – | – |
| Column/vessel cleaningSurface | – | – | – | – | – |
| Pipeline/sewer cleaningSurface | – | – | – | – | – |
| Abrasive/water jet cuttingSurface | – | – | – | – | alloyed metals, steel, concrete, reinforced concrete, high-strength ceramics |
| Dry ice blasting / CO2 blastingSurface | – | – | – | – | – |
| Air conveying systems / supersuckers (vacuum/blowing up to 200 m distance, 50 m depth, 100 m height)Surface | – | – | – | – | – |
| ADR dangerous goods transport / vacuum vehicles / high-pressure combination unitsSurface | – | – | – | – | – |
| Chemical cleaning / picklingSurface | – | – | – | – | – |
| Hazardous material and asbestos remediationSurface | – | – | – | – | – |
| Tank cleaning / tank service (no men entry, turbomix method)Surface | – | – | – | – | crude oil, heavy fuel oil, petrol, naphtha, finished products, slop |
| Oil sludge processing (decanter/tricanter centrifuges)Surface | – | – | – | – | – |
| Remediation of oil sludge landfillsSurface | – | – | – | – | – |
| Mobile flare / flare systems (residual gas combustion)Surface | – | – | – | – | – |
| Surface | – | – | – | – | – |
| Scaffolding (industrial scaffolding, facade scaffolding)Assembly | – | – | – | – | – |
| Assembly work / industrial installation (static equipment)Assembly | – | – | – | – | – |
| Plant shutdowns / shutdowns (up to 300 men per project)Assembly | – | – | – | – | – |
| Piping constructionAssembly | – | – | – | – | – |
| Torque and bolt tensioning workAssembly | – | – | – | – | – |
| Turnaround services / shutdown management (major shutdowns)Assembly | – | – | – | – | – |
| Plant engineering (plant components, vessels, heat exchangers, pipework, small-scale plants)Joining | – | – | – | – | Incoloy, Hastelloy, Duplex |
| Turned, milled or laser-cut parts and welded assembliesMachining | – | – | – | – | – |
| Welding technology (MAG 135, TIG 141, manual arc 111, orbital 142)Joining | – | – | – | – | – |
| Testing | – | – | – | – | – |
| Engineering (design, static calculations, fabrication drawings, pressure loss calculations)Engineering | – | – | – | – | – |
| Assembly | – | – | – | – | – |
| Automation / instrumentation and control (engineering, fabrication, EMSR installation, support &Engineering | – | – | – | – | – |
| Industrial maintenance / power plant servicesAssembly | – | – | – | – | – |
| Civil and underground engineering / structural maintenanceAssembly | – | – | – | – | – |
| Steel construction (aluminium, stainless steel and steel structures)Joining | – | – | – | – | aluminium, stainless steel, steel |
| Sewer cleaning (sewer clearing, pit service, separator service)Surface | – | – | – | – | – |
| Offshore services (maintenance of oil and gas facilities, EPC contractor, tank farm operation)Assembly | – | – | – | – | – |
| Valve and safety valve service (repair, calibration, certification)Testing | – | – | – | – | – |
| Special measurement services (laser alignment, vibration measurements, dynamic balancing)Testing | – | – | – | – | – |
19 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Indoor crane | – | 3 | 2 x 10 t / 1 x 25 t | – | Main plant engineering site |
| Cutting/laser cutting | – | – | 3000 x 1500 mm / 30 mm wall thickness | – | Main production site |
| Milling machine | – | – | ≤ 3,500 mm x 1,250 mm x 1,500 mm | – | Main production site |
| Lathe | – | – | Ø ≤ 600 mm; L ≤ 2,000 mm | – | Main production site |
| Band saw | – | – | Ø ≤ 520 mm | – | Main production site |
| Circular saw | – | – | Ø ≤ 100 mm | – | Main production site |
| Shear | – | – | t ≤ 16 mm; L ≤ 3,000 mm | – | Main production site |
| Press brake | – | – | t ≤ 20 mm; L ≤ 4,000 mm | – | Main production site |
| Rolling machine | – | – | t ≤ 20 mm; L ≤ 3,000 mm | – | Main production site |
| Decanter/tricanter centrifuges | Flottweg Tricanter® | – | – | – | – |
| Turbomixers / hydraulically driven mixers with controllable rotors | – | – | – | – | – |
| Supersuckers / air conveying systems (ADR) | – | – | Deployment up to 200 m distance, 50 m depth or 100 m height | – | – |
| High-pressure units and vacuum trucks | – | approx. 80 | – | – | – |
| Spider Jet / tank washing heads / flushing lances (jet washers) | – | – | – | – | – |
| N2 inerting systems / compact units in containers / heat exchanger systems | – | – | – | – | – |
| Mobile flare systems and combustion chambers | – | – | – | – | – |
| Tool container blocks | – | – | Maximum capacity for 300 employees | – | – |
| Bundle extraction devices (truck-mounted and hanging versions) | – | – | – | – | – |
| Vacuum trucks / screw pumps / crane trucks / breathing apparatus vehicles | – | – | – | – | – |
Additional services
Reference customers
Quality and Certifications
The Rohrer Group is certified to ISO 9001, ISO 14001, SCC** and SCCP and previously held OHSAS 18001. Testing personnel certified to EN 473 Level 2 and 3 perform non-destructive testing methods (PT, UT, RT, MT, LT, VT), spectral analyses and hardness testing in the pre-fabrication facilities and on site.
| Evidence | Niklasdorf | Jockgrim |
|---|---|---|
| ISO 9001 | ||
| ISO 14001 | ||
| SCC** | ||
| SCCP Petrochemicals | ||
| ISO 45001 | ||
| EN 1090 |