3100 Series Spring Starter
For diesel engines from 15 L to 23 L
The 3100 Series is a spring starter for diesel engines from 15 L to 23 L. Starting energy is stored by hand-winding an internal stack of disc springs, so no battery, compressed air or hydraulic power is needed.
Typical uses: marine emergency generator sets, data center standby generator sets, fire pump sets, offshore oil & gas platforms and emergency generators for hospitals and large public venues.
Key Advantages
No External Power Needed
Apart from manual winding, no other energy source is needed, so starting does not depend on batteries, compressed air or mains power. Not affected by battery failure, self-discharge or electrical shorts.
No Electrical Sparks
Purely mechanical design: no electrical sparks are produced during starting. Suited to environments where sparks must be avoided, such as offshore oil drilling, coal mine rail cars and some chemical processing sites. Please confirm your site requirements.
Standard SAE Flange
Compact SAE-standard flange interface allows direct bolt-on replacement of an electric starter, where the mounting fits, without modifying the flywheel housing.
Pre-Engaged Pinion
The pinion fully meshes with the flywheel ring gear before cranking torque is applied, reducing gear-tooth impact and wear.
Low Maintenance
Requires no battery replacements or oil refills, reducing maintenance work on site.
Built for Demanding Environments
Solutions can be adapted to high- or low-temperature requirements.
Installation Options
Two ways to fit the 3100 Series.
Replace the electric starter
Where the mounting fits, bolts directly onto the electric starter’s SAE mounting position, with no change to the flywheel housing.
Dual-starter installation
Installed together with an electric starter, this needs a flywheel housing with two starter mounting positions. For engines with only one, a custom dual-lug flywheel housing can be supplied.
Engine Compatibility
Suitable for large-displacement diesel engines from the manufacturers below. Please send us your engine model to confirm fit.
Cummins: NT855 Deutz: F12L413, BF8M1015 Yuchai: YC6T Scania: DI13Also successfully adapted to engines from MTU, Weichai, Perkins, Volvo, Mitsubishi and others.
All brand names are the property of their respective owners and are used for identification purposes only.
Parameters & Dimensions
3100 Series
Dimensions are for reference only. Contact us for a drawing.
| Mounting flange | SAE 1, 2 & 3 |
| Engine displacement / max cylinders | 2.5 L per cylinder, up to 6 cylinders 2.0 L per cylinder, up to 8 cylinders 1.9 L per cylinder, up to 12 cylinders |
| Max pinion torque | 167 N·m |
| Max winding torque | 100 N·m |
| Turns to fully wind | 2+15 |
| Weight | 26 kg |
| Rotation | Clockwise or counter-clockwise |
| Dimensions | L 368 mm · A 133 mm · B 143 mm |
Other Spring Starter Series
Choose by engine displacement.
