Compressed air that keeps working at sea.
Marine screw and starting-air piston compressors, industrial PM VSD packages and turn-key air treatment — built for salt fog, vibration and continuous duty, surveyed to class rules.
Find a candidate model in three inputs
Enter flow and pressure — the selector matches against 847 SH/GRF-series data rows and carries the result into your enquiry.
One manufacturer, every air duty on board and ashore
Marine Compressors
GRF-10C to 350C screw packages (7.5–250 kW) and ZFC / VFC / WFC piston sets for 3.0 MPa starting air.
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SH Series Industrial
14 families, 277 models: PM VSD and fixed speed, single and two-stage, 4-in-1 stations, laser-cutting and low-pressure lines.
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Air Treatment & Skids
Refrigerated and desiccant dryers, fine filters and receivers, selected by dew point and ISO 8573-1 class, delivered on one skid.
View treatment →Designed, built and certified in-house
R&D
- In-house element and system design
- 12 patents, incl. marine water-cooled screw design patent (8074130)
- Energy-efficiency lab verified to GB 19153-2019 Grade 1
Manufacturing & QA
- Jiading base: element assembly and full-unit testing
- Performance, leak and pressure test on every unit
- Material certificates, test reports and class documents
Systems & Approvals
- ISO 9001 / 14001 / 45001
- CCS, BV Mode II, ABS, RS and ECM approvals
- National High-Tech Enterprise (GR202431000556)
Every air duty on a vessel, with a real reference
Engine starting
30–40 bar starting air: ZFC / VFC / WFC piston sets with receivers, including blackout recovery.
Instrument air
7–8 bar with desiccant drying and fine filtration; oil carry-over below 3 ppm.
Nitrogen feed
8–13 bar large water-cooled direct-driven units; two-stage machines down to 2 ppm.
Scrubber & offshore
Compact EGCS retrofit units and platform / FPSO skids with DCS communication.
The documents you need for sizing
Marine catalogue, SH-series parameter workbook and certificate list — no registration required.
3,000+ marine installations worldwide
PETRONAS Sepat FPSO
Three utility / instrument air skids, 220 kW / 690 V, 316L connections, 30-year design life.
Wison F462 · 45,000 m³ FSRU
Four systems on one vessel: GRF-300DSCW two-stage + GRF-300C for N₂, GRF-120C service air, WFC-90 starting air.
MSC container fleet
30 sets across 20+ vessels, delivered inside dry-dock windows with EN/CN documentation.
Engineering articles and exhibitions
Marine compressor sizing: duty first, model second
Starting air, instrument air and nitrogen feed have completely different pressure and cleanliness requirements.
2026-11-13 RetrofitScrubber retrofits: short dock windows demand interchangeable interfaces
Lessons from 30 sets across 20+ MSC vessels.
2026-11-13 ExhibitionMarintec China 2026, Guangzhou — meet us there
Marine units on display with on-site sizing support in December.
2026-11-13Popular products
SH-AH PM VSD Single-Stage Screw Compressor
PM VSD · single-stage · centrifugal fan
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SH-AZG PM VSD Laser-Cutting Air Station
PM VSD · laser cutting · 4/5-in-1
View details →GRF Marine Water-Cooled Screw Compressor
Marine · water cooled · 7.5–250 kW
View details →
WFC-90 Marine Piston Air Compressor
Marine · three cylinder · 3.0 MPa starting air
View details →