S70 marine grade high-capacity spring starter motor

Name: S70 marine grade high-capacity spring starter motor
Brand: Powerstart
Availability: InStock

The S70 Spring Starter delivers reliable manual starting for diesel engines up to 14 litres.

Available as a clockwise rotation model, the S70 offers ship builders and operators a dependable, easy-to-install starting solution for main engines and emergency generators.

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SOLUTION DETAILS

Manual starting for large diesel engines

The S70 Spring Starter is designed for diesel engines up to 14 litres (854.4 cubic inches) on eight cylinders, or 12 litres on six, and is available in a clockwise rotation model. For smaller engines, the S20, S30, S40, S50, or S60 spring starters are available.

Ideal for marine applications

The S70 provides ship builders with an easily installed, fully manual starter that delivers dependable performance for both main propulsion engines and emergency generators.

Proven across industries

The S70 is used in a wide range of applications and engine brands, including Caterpillar, Cummins, Detroit, Man, Perkins, Scania, and Volvo—offering a versatile and trusted starting option for critical equipment.

Key Advantages

High engine capacity: Suitable for diesel engines up to 14 litres (854.4 cubic inches) on eight cylinders, or 12 litres on six.
Marine-ready design: Popular choice for ship builders seeking reliable starting for main engines and emergency generators.
Wide compatibility: Fits leading engine brands including Caterpillar, Cummins, Detroit, Man, Perkins, Scania, and Volvo.
Manual reliability: Operates without batteries or external power, ensuring dependable starts in any conditions.
Easy installation: Designed for quick and straightforward fitting across multiple applications.
Durable construction: Built to withstand demanding marine and industrial environments.

Optional Features and Configurations

Clockwise Rotation

Technical Specs

Performance

Rotation

S70C: clockwise

Engine capacity

2.0 to 12.0 litres (122.1 to 732.6 cubic inches) on 6 cylinders | 1.75 to 14.0 litres (106.8 to 854.4 cubic inches) on 8 cylinders

Pinion type

11 to 13 teeth 10/12 F/stub11 to 13 teeth 6/8 F/stub11 to 12 teeth 6/8 F/stub11 to 13 teeth Mod 3

Pinion to flange face

47mm (nominal)

Maximum torque at pinion

147 Nm (108 lb ft)

Maximum winding handle torque

95 Nm (70 ft/lb)

Turns to fully wind

1.75 turns to engage | 19.5 turns to fully charge

Winding handle position

Variable in 8.5 degree increments

Cold start

Starting aid below 5 degrees Celsius

Physical

Mass

28.0 kg (61.7 lb)

Mounting

Flange-mounted SAE 1; SAE 2; SAE 3

Finish

Marine finish as standard: zinc-plated body and housing; powder-coated paint all over to withstand marine environment. Electroless nickel-plated shaft and pinion.