Hatz B Series · air-cooled diesel
Hatz 1B50
Hatz 1B50 is a compact single-cylinder, air-cooled 4‑stroke industrial diesel engine with 0.517L displacement and mechanical direct injection.
- Power
- 7.9 kW
- Speed
- 3000–3600 rpm
- Max torque
- 25.6 Nm
- Dry weight
- 56 kg
- Configured to your speed, start and shaft
- Genuine Hatz parts in stock, with diagrams online
- Talk it through: +44 (0) 1626 778 266
About the Hatz 1B50
The Hatz 1B50 is built for compact industrial applications that need serious single-cylinder performance without the complexity of a multi-cylinder installation. It combines a space-efficient, air-cooled design with strong output and a proven mechanical fuel system — ideal for OEM equipment, repower projects, and power units where durability and service access matter.
With 0.517L displacement and mechanical direct injection, the 1B50 delivers up to 7.9 kW (10.6 hp) at 3600 rpm. For constant-speed duties it also supports 7.6 kW (10.2 hp) at 3000 rpm, and it’s well suited to fixed-speed applications at 1800 rpm where stable output is required. This spread of usable operating points makes it flexible across both variable-speed equipment and constant-speed power packages.
Every engine we supply is set up for its job before it leaves Teignmouth, and backed by the parts and people to keep it running.
Specification
Get this as a PDF datasheet →Performance
- Power
- 7.9 kW
- Speeds
- 3000, 3600 rpm
- Max torque
- 25.6 Nm @ 2500 rpm
- Use
- Generator drive, Industrial
Engine
- Cylinders
- 1
- Aspiration
- Natural
- Injection
- Direct (DI), mechanical
- SAE connection
- Options available
Emissions
- Standard
- EU Stage V
- EGR
- No
- DOC
- No
- DPF
- No
Cooling
- Type
- Air-cooled
- Radiator
- No
- Fan
- No
- Charge air cooler
- No
Figures are manufacturer published data and may change. We’ll confirm the final specification with your quote.
Dimensions
- Length
- 334 mm
- Width
- 412 mm
- Height
- 480 mm
- Dry weight
- 56 kg
Need an installation drawing? Ask and we’ll send the drawing for your configuration.
Free datasheet
Your 1B50, on one page.
Pick your set-up and we’ll email you a PDF datasheet with the full specification and your configuration, ready to share or add to a tender. Want a price too? Tick the box and the engine team will quote for it.
- Full Hatz specification
- Your speed, start and application
- Dimensions and weight
- Prepared in your name
1B50 parts and diagramsExploded diagrams for every assembly, with genuine Hatz parts in stock.Browse parts →Servicing and set-upSpeed, governor and start set up before it ships, and help with servicing after.Ask the team →One shipment, worldwideAdd parts, a generator or other engines and we'll ship it all together, anywhere in the world.How it works →Technical helpFitting, running or fault-finding: talk to someone who knows the 1B50.Get in touch →
